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Matching images = 43746: 36609 photos, 7137 line drawings

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Symbol Scientific Name Common Name Number of Photos / Line Drawings
ABES Abelmoschus esculentus (L.) Moench okra 3/0
HIES Hibiscus esculentus L.   4/0
ABMO Abelmoschus moschatus Medik. musk okra 3/0
HIAB Hibiscus abelmoschus L.   1/0
ABIES Abies P. Mill. fir 2/1
ABAL3 Abies alba Miller silver fir 2/0
ABAM Abies amabilis (Dougl. ex Loud.) Dougl. ex Forbes Pacific silver fir 16/0
ABBA Abies balsamea (L.) P. Mill. balsam fir 13/2
ABBR Abies bracteata (D. Don) D. Don ex Poit. bristlecone fir 5/0
ABCO Abies concolor (Gord. & Glend.) Lindl. ex Hildebr. white fir 17/0
ABCOC Abies concolor (Gord. & Glend.) Lindl. ex Hildebr. var. concolor white fir 7/0
ABFR Abies fraseri (Pursh) Poir. Fraser fir 5/1
ABGR Abies grandis (Dougl. ex D. Don) Lindl. grand fir 6/0
ABGRG Abies grandis (Dougl. ex D. Don) Lindl. var. grandis (Dougl. ex D. Don) Lindl. [superfluous autonym]   6/0
ABLA Abies lasiocarpa (Hook.) Nutt. subalpine fir 18/0
ABLAA Abies lasiocarpa (Hook.) Nutt. var. arizonica (Merriam) Lemmon corkbark fir 1/0
ABLAL Abies lasiocarpa (Hook.) Nutt. var. lasiocarpa subalpine fir 12/0
ABMA Abies magnifica A. Murr. California red fir 14/1
ABPR Abies procera Rehd. noble fir 20/0
ABAB70 Abietinella abietina (Hedw.) Fleisch. abietinella moss 3/0
ABRON Abronia Juss. sand verbena 2/0
ABAM2 Abronia ameliae Lundell Amelia's sand verbena 1/0
ABAN Abronia angustifolia Greene purple sand verbena 4/0
ABBI Abronia bigelovii Heimerl Galisteo sand verbena 2/0
ABFR2 Abronia fragrans Nutt. ex Hook. snowball sand verbena 6/1
ABLA2 Abronia latifolia Eschsch. coastal sand verbena 7/0
ABMA2 Abronia maritima Nutt. ex S. Wats. red sand verbena 4/0
ABME Abronia mellifera Douglas ex Hook. white sand verbena 2/0
ABNA Abronia nana S. Wats. dwarf sand verbena 3/0
ABPO Abronia pogonantha Heimerl Mojave sand verbena 1/0
ABTU Abronia turbinata Torr. ex S. Wats. transmontane sand verbena 4/0
ABUM Abronia umbellata Lam. pink sand verbena 11/0
ABVI Abronia villosa S. Wats. desert sand verbena 6/0
ABVIA Abronia villosa S. Wats. var. aurita (Abrams) Jepson desert sand verbena 3/0
ABVIV Abronia villosa S. Wats. var. villosa desert sand verbena 3/0
ABPR3 Abrus precatorius L. rosarypea 5/0
ABUTI Abutilon P. Mill. Indian mallow 2/0
ABAB Abutilon abutiloides (Jacq.) Garcke ex Britt. & P. Wilson shrubby Indian mallow    
ABLI Abutilon lignosum (Cav.) G. Don   1/0
ABHI Abutilon hirtum (Lam.) Sweet Florida Keys Indian mallow 2/0
ABIN Abutilon incanum (Link) Sweet pelotazo 1/0
ABMA8 Abutilon mauritianum (Jacq.) Medik. 2/0
ABME3 Abutilon megapotamicum (A. Spreng.) A. St.-Hil. & Naudin trailing abutilon 3/0
ABMO2 Abutilon mollicomum (Willd.) Sweet Sonoran Indian mallow    
ABSO Abutilon sonorae Gray   1/0
ABTH Abutilon theophrasti Medik. velvetleaf 4/0
ABAB3 Abutilon abutilon (L.) Rusby   0/1
ACACI Acacia P. Mill. acacia 4/1
ACAN10 Acacia aneura F. Muell. ex Benth. mulga 1/0
ACAN Acacia angustissima (P. Mill.) Kuntze prairie acacia 3/1
ACBA Acacia baileyana F. Muell. cootamundra wattle 1/0
ACBE Acacia berlandieri Benth. guajillo 2/0
ACBO4 Acacia boomanii Maiden Snowy River wattle 4/0
ACCA27 Acacia cardiophylla A. Cunn. ex Benth. wyalong wattle 4/0
ACCA21 Acacia catechu (L. f.) Willd. [excluded] black cutch 1/0
ACCH7 Acacia chinchellensis Tindale Chinchilla wattle 4/0
ACCO24 Acacia collinsii Saff. bull horn acacia 3/0
ACCO Acacia confusa Merr. small Philippine acacia 1/0
ACCO2 Acacia constricta Benth. whitethorn acacia 4/0
ACCO5 Acacia cornigera (L.) Willd. bullhorn wattle 1/0
ACCY2 Acacia cyclops G. Don cyclops acacia 2/0
ACDE3 Acacia dealbata Link silver wattle 1/0
ACDE Acacia decurrens Willd. green wattle 1/0
ACEL Acacia elata A. Cunn. ex Benth. cedar wattle 1/0
ACFA Acacia farnesiana (L.) Willd. sweet acacia 3/0
ACGL4 Acacia glauca (L.) Moench acacia 1/0
ACGR Acacia greggii Gray catclaw acacia 8/0
ACGRW Acacia greggii A. Gray var. wrightii (Benth.) Isely catclaw acacia    
ACWR Acacia wrightii Benth.   2/0
ACKO Acacia koa A. Gray koa 1/0
ACLI8 Acacia ligulata Benth. acacia 1/0
ACLO Acacia longifolia (Andr.) Willd. Sydney golden wattle 1/0
ACMA Acacia macracantha Humb. & Bonpl. ex Willd. porknut 1/0
ACME80 Acacia mearnsii de Wildeman black wattle 1/0
ACME Acacia melanoxylon R. Br. ex Ait. f. blackwood 1/0
ACMU Acacia muricata (L.) Willd. spineless wattle 1/0
ACNE4 Acacia neovernicosa Isely viscid acacia    
ACVE Acacia vernicosa Standl.   4/0
ACNI8 Acacia nigrescens Oliv. knobthorn 1/0
ACNI2 Acacia nilotica (L.) Willd. ex Delile gum arabic tree 1/0
ACPA8 Acacia paradoxa DC. paradox acacia    
ACAR15 Acacia armata R. Br.   1/0
ACPA81 Acacia parramattensis Tindale South Wales wattle 2/0
ACPI Acacia pinetorum F.J. Herm. pineland wattle 2/0
ACPO2 Acacia podalyriifolia A. Cunningham ex G. Don pearl wattle 6/0
ACPO3 Acacia polyacantha Willd. catechu tree 1/0
ACPR6 Acacia pravissima F. Muell. wedge-leaf wattle 3/0
ACPY3 Acacia pycnantha Benth. golden wattle 1/0
ACRE4 Acacia retusa (Jacq.) Howard catch and keep 2/0
ACRI4 Acacia riparia auct. non Kunth   1/0
ACRI Acacia rigidula Benth. blackbrush acacia 1/0
ACRO Acacia roemeriana Scheele roundflower catclaw 1/0
ACSA Acacia saligna (Labill.) Wendl. f. orange wattle 1/0
ACSC2 Acacia schaffneri (S. Watson) F.J. Herm. Schaffner's wattle 2/0
ACSE6 Acacia senegal (L.) Willd. gum arabic 2/0
ACSE7 Acacia seyal Delile talh 1/0
ACSO4 Acacia sophorae (Labill.) R. Br. acacia 1/0
ACSP4 Acacia sphaerocephala Schltdl. & Cham. bee wattle 1/0
ACTO6 Acacia tortilis (Forsskal) Hayne umbrella thorn 2/0
ACTO Acacia tortuosa (L.) Willd. poponax 1/0
ACUN2 Acacia uncinata Lindl. 2/0
ACVE2 Acacia verticillata (L'Hér.) Willd. prickly Moses 1/0
ACVO Acacia vogeliana Steud. macata bourse bastard 1/0
ACXA3 Acacia xanthophloea Benth. fevertree 3/0
ACPI3 Acaena pinnatifida Ruiz & Pavón Argentinian biddy-biddy 1/0
ACAMW Acalypha amentacea Roxb. ssp. wilkesiana (Müll. Arg.) Fosberg Wilkes' acalypha 2/0
ACGR2 Acalypha gracilens Gray slender threeseed mercury 5/1
ACHI2 Acalypha hispida Burm. f. red-hot cat's tail 1/0
ACOS Acalypha ostryifolia Riddell pineland threeseed mercury 0/1
ACRH Acalypha rhomboidea Raf. common threeseed mercury 1/0
ACVI Acalypha virginica L. Virginia threeseed mercury 2/2
ACSH Acamptopappus shockleyi Gray Shockley's goldenhead 4/0
ACANT6 Acanthocereus (Engelm. ex Berger) Britt. & Rose triangle cactus 2/0
ACIL Acanthomintha ilicifolia (Gray) Gray San Diego thorn-mint 2/0
ACAU2 Acanthospermum australe (Loefl.) Kuntze Paraguayan starburr 0/1
ACHI Acanthospermum hispidum DC. hispid starburr 1/0
ACANT7 Acanthus L. acanthus 1/0
ACMO8 Acanthus mollis L. bear's breech 2/0
ACPOP Acanthus polystachyus Delile var. pseudopubescens Cufod.    
ACPU4 Acanthus pubescens Engl.   1/0
ACSP7 Acanthus spinosus L. spine acanthus 6/0
ACSC5 Acarospora schleicheri (Ach.) A. Massal. Schleicher's cracked lichen 3/0
ACMU5 Acaulon muticum (Hedw.) C. Müll. acaulon moss 3/0
ACTR4 Acaulon triquetrum (Spruce) C. Müll. acaulon moss 6/0
ACER Acer L. maple 1/1
ACBA3 Acer barbatum Michx. southern sugar maple 4/0
ACCA5 Acer campestre L. hedge maple 4/0
ACCI Acer circinatum Pursh vine maple 5/1
ACCI5 Acer cissifolium (Siebold & Zucc.) K.Koch ivyleaf maple 2/0
ACGI Acer ginnala Maxim. Amur maple 5/0
ACGL Acer glabrum Torr. Rocky Mountain maple 2/1
ACGLD4 Acer glabrum Torr. var. douglasii (Hook.) Dippel Douglas maple 5/0
ACGLN2 Acer glabrum Torr. var. neomexicanum (Greene) Kearney & Peebles New Mexico maple    
ACGLN Acer glabrum Torr. ssp. neomexicanum (Greene) E. Murr.   1/0
ACGLT2 Acer glabrum Torr. var. torreyi (Greene) Smiley Torrey maple 1/0
ACGR3 Acer grandidentatum Nutt. bigtooth maple 6/0
ACGR14 Acer griseum (Franch.) Pax paperbark maple 3/0
ACJA2 Acer japonicum Thurb. Amur maple 4/0
ACMA3 Acer macrophyllum Pursh bigleaf maple 9/0
ACNE2 Acer negundo L. boxelder 20/2
ACNEN Acer negundo L. var. negundo boxelder 1/0
NEAC Negundo aceroides (L.) Moench   3/0
ACNI5 Acer nigrum Michx. f. black maple 4/1
ACPA2 Acer palmatum Thunb. Japanese maple 11/0
ACPE Acer pensylvanicum L. striped maple 4/1
ACPL Acer platanoides L. Norway maple 8/0
ACPS Acer pseudoplatanus L. sycamore maple 3/0
ACRU Acer rubrum L. red maple 12/1
ACRUD Acer rubrum L. var. drummondii (Hook. & Arn. ex Nutt.) Sarg. Drummond's maple 8/0
ACDR Acer drummondii Hook. & Arn. ex Nutt.   0/1
ACRUR Acer rubrum L. var. rubrum red maple    
ACST Acer stenocarpum Britt.   0/1
ACRUT Acer rubrum L. var. trilobum Torr. & Gray ex K. Koch red maple    
ACCA9 Acer carolinianum Walt.   0/1
ACSA2 Acer saccharinum L. silver maple 11/1
ACSA3 Acer saccharum Marsh. sugar maple 13/1
ACSP2 Acer spicatum Lam. mountain maple 5/1
ACTA80 Acer tataricum L. tatarian maple 4/0
ACHIL Achillea L. yarrow 1/0
ACFI Achillea filipendulina Lam. fernleaf yarrow 1/0
ACMI2 Achillea millefolium L. common yarrow 17/1
ACMIB Achillea millefolium L. var. borealis (Bong.) Farw. boreal yarrow    
ACBO Achillea borealis Bong.   0/1
ACMIO Achillea millefolium L. var. occidentalis DC. western yarrow 3/0
ACLA5 Achillea lanulosa Nutt.   2/1
ACTO3 Achillea tomentosa Pursh, non L.   4/0
ACPT Achillea ptarmica L. sneezeweed 0/1
ACTR Achlys triphylla (Sm.) DC. sweet after death 3/0
ACAR14 Achnatherum aridum (M.E. Jones) Barkworth Mormon needlegrass    
STAR2 Stipa arida M.E. Jones   0/1
ACBL Achnatherum ×bloomeri (Boland.) Barkworth [hymenoides × occidentale]    
ORBL Oryzopsis bloomeri (Boland.) Ricker   0/1
ACCU6 Achnatherum curvifolium (Swallen) Barkworth Guadalupe ricegrass    
STCU2 Stipa curvifolia Swallen   0/1
ACDI10 Achnatherum diegoense (Swallen) Barkworth San Diego needlegrass    
STDI Stipa diegoensis Swallen   0/1
ACEM4 Achnatherum eminens (Cav.) Barkworth southwestern needlegrass    
STEM2 Stipa eminens Cav.   0/1
ACHE10 Achnatherum hendersonii (Vasey) Barkworth Henderson's needlegrass    
ORHE Oryzopsis hendersonii Vasey   0/1
ACHY Achnatherum hymenoides (Roemer & J.A. Schultes) Barkworth Indian ricegrass 8/0
ERCU9 Eriocoma cuspidata Nutt.   0/1
ORHY Oryzopsis hymenoides (Roemer & J.A. Schultes) Ricker ex Piper   7/1
ACLA8 Achnatherum latiglume (Swallen) Barkworth Sierra needlegrass    
STLA2 Stipa latiglumis Swallen   0/1
ACLEL Achnatherum lemmonii (Vasey) Barkworth var. lemmonii Lemmon's needlegrass    
STLE2 Stipa lemmonii (Vasey) Scribn.   0/1
ACLE9 Achnatherum lettermanii (Vasey) Barkworth Letterman's needlegrass    
STLE4 Stipa lettermanii Vasey   0/1
ACLO7 Achnatherum lobatum (Swallen) Barkworth littleawn needlegrass    
STLO3 Stipa lobata Swallen   0/1
ACNED Achnatherum nelsonii (Scribn.) Barkworth ssp. dorei (Barkworth & Maze) Barkworth Dore's needlegrass    
STCO3 Stipa columbiana auct. non Macoun [misapplied]   1/1
ACNEN2 Achnatherum nelsonii (Scribn.) Barkworth ssp. nelsonii Columbia needlegrass 2/0
STWI Stipa williamsii Scribn.   0/1
ACOCC Achnatherum occidentale (Thurb.) Barkworth ssp. californicum (Merr. & Burtt-Davey) Barkworth California needlegrass    
STCA2 Stipa californica Merr. & Burtt-Davy   0/1
ACOCO Achnatherum occidentale (Thurb.) Barkworth ssp. occidentale western needlegrass    
STOC2 Stipa occidentalis Thurb. ex S. Wats.   0/1
ACOCP Achnatherum occidentale (Thurb.) Barkworth ssp. pubescens (Vasey) Barkworth pubescent western needlegrass    
STEL2 Stipa elmeri Piper & Brodie ex Scribn.   0/1
ACPA13 Achnatherum parishii (Vasey) Barkworth Parish's needlegrass 2/0
ACPI2 Achnatherum pinetorum (M.E. Jones) Barkworth pine needlegrass    
STPI2 Stipa pinetorum M.E. Jones   0/1
ACRI8 Achnatherum richardsonii (Link) Barkworth Richardson's needlegrass    
STRI2 Stipa richardsonii Link   0/2
ACRO7 Achnatherum robustum (Vasey) Barkworth sleepygrass    
STRO3 Stipa robusta (Vasey) Scribn.   0/1
ACSC11 Achnatherum scribneri (Vasey) Barkworth Scribner needlegrass    
STSC2 Stipa scribneri Vasey   1/1
ACSP12 Achnatherum speciosum (Trin. & Rupr.) Barkworth desert needlegrass 3/0
STSP3 Stipa speciosa Trin. & Rupr.   1/1
ACST7 Achnatherum stillmanii (Bolander) Barkworth Stillman's needlegrass    
STST2 Stipa stillmanii Boland.   0/1
ACTH7 Achnatherum thurberianum (Piper) Barkworth Thurber's needlegrass 2/0
STTH2 Stipa thurberiana Piper   0/1
ACWE3 Achnatherum webberi (Thurb.) Barkworth Webber needlegrass    
ORWE Oryzopsis webberi (Thurb.) Benth. ex Vasey   0/1
ACIDA Acidanthera Hochstetter acidanthera 1/0
ACAR2 Acinos arvensis (Lam.) Dandy basil thyme    
CLAC5 Clinopodium acinos (L.) Kuntze   0/1
ACFE2 Aciphylla ferox W.R.B. Oliv. fierce Spaniard 1/0
ACLO2 Acleisanthes longiflora Gray angel's trumpets 1/0
ACOP Acmella oppositifolia (Lam.) R.K. Jansen oppositeleaf spotflower 1/0
ACOPR Acmella oppositifolia (Lam.) R.K. Jansen var. repens (Walt.) R.K. Jansen oppositeleaf spotflower    
SPAM3 Spilanthes americana auct. p.p., non Hieron.   0/1
SPAMR3 Spilanthes americana (Mutis ex L. f.) Hieron. var. repens (Walt.) A.H. Moore   0/1
ACWR4 Acoelorraphe wrightii (Griseb. & H. Wendl.) H. Wendl. ex Becc. Everglades palm 1/0
ACONI Aconitum L. monkshood 2/0
ACCO4 Aconitum columbianum Nutt. Columbian monkshood 9/1
ACCOC3 Aconitum columbianum Nutt. ssp. columbianum Columbian monkshood 7/0
ACFI3 Aconitum fischeri Reichb. Fischer monkshood 1/0
ACNA Aconitum napellus L. Venus' chariot 2/0
ACNO2 Aconitum noveboracense Gray ex Coville northern blue monkshood 6/1
ACRE Aconitum reclinatum Gray trailing white monkshood 1/1
ACUN Aconitum uncinatum L. southern blue monkshood 5/1
ACAM Acorus americanus (Raf.) Raf. sweetflag 2/0
ACCA10 Acorus calamus auct. non L. [misapplied]   0/1
ACCA4 Acorus calamus L. calamus 2/1
ACGR15 Acorus gramineus Sol. ex Aiton grassleaf sweet flag 1/0
ACNA2 Acourtia nana (Gray) Reveal & King dwarf desertpeony 2/0
PENA5 Perezia nana Gray   1/0
ACRU3 Acourtia runcinata (Lag. ex D. Don) B.L. Turner featherleaf desertpeony 1/0
ACWR5 Acourtia wrightii (Gray) Reveal & King brownfoot 3/0
ACRA6 Acrachne racemosa (Roemer & J.A. Schultes) Ohwi goosegrass 1/0
ACMA5 Acroceras macrum Stapf Nile grass 1/0
ACRE3 Acroptilon repens (L.) DC. hardheads 1/0
ACAU3 Acrostichum aureum L. golden leatherfern 1/0
ACAR18 Actaea arizonica (S. Wats.) J. Compton    
CIAR Cimicifuga arizonica S. Wats.   1/0
ACPA Actaea pachypoda Ell. white baneberry 8/0
ACAL7 Actaea alba auct. non (L.) P. Mill. [misapplied]   0/1
ACPO11 Actaea podocarpa DC. mountain bugbane    
CIAM Cimicifuga americana Michx.   0/1
ACRAR Actaea racemosa L. var. racemosa black bugbane    
CIRA Cimicifuga racemosa (L.) Nutt.   5/1
ACRU14 Actaea rubifolia (Kearney) Kartesz Appalachian bugbane    
CICO4 Cimicifuga cordifolia auct. non (DC.) Torr. & Gray [misapplied]   0/1
ACRU2 Actaea rubra (Ait.) Willd. red baneberry 8/1
ACRUA8 Actaea rubra (Ait.) Willd. ssp. arguta (Nutt.) Hultén red baneberry    
ACAR7 Actaea arguta Nutt.   1/0
ACRUR2 Actaea rubra (Ait.) Willd. ssp. rubra red baneberry    
ACSPR3 Actaea spicata L. ssp. rubra (Ait.) Hultén   2/0
ACCH5 Actinidia chinensis Planchon kiwi 1/0
ADDI3 Adansonia digitata L. baobab 13/0
ADRI Adelia ricinella L. wild lime 1/0
ADPA Adenanthera pavonina L. red beadtree 2/0
ADENI Adenium Roem. & Schult. desert rose 1/0
ADOB2 Adenium obesum (Forssk.) Roem. & Schult. desert-rose 9/0
ADBI Adenocaulon bicolor Hook. American trailplant 5/1
ADPO Adenophyllum porophylloides (Gray) Strother San Felipe dogweed 4/0
ADFA Adenostoma fasciculatum Hook. & Arn. chamise 11/0
ADSP Adenostoma sparsifolium Torr. redshank 6/0
ADIAN Adiantum L. maidenhair fern 1/0
ADAL Adiantum aleuticum (Rupr.) Paris Aleutian maidenhair 3/0
ADCA Adiantum capillus-veneris L. common maidenhair 3/2
ADHI Adiantum hispidulum Sw. rough maidenhair 1/0
ADJO Adiantum jordanii C. Muell. California maidenhair 1/0
ADPE Adiantum pedatum L. northern maidenhair 8/2
ADPU Adiantum pulverulentum L. glossy maidenhair 1/0
ADFU Adlumia fungosa (Ait.) Greene ex B.S.P. allegheny vine 2/1
ADAN Adonis annua L. blooddrops 0/1
ADVE Adonis vernalis L. spring pheasant's eye 2/0
ADMO Adoxa moschatellina L. muskroot 6/1
AECHM Aechmea Ruiz & Pavón livingvase 3/0
AEFA3 Aechmea fasciata (Lindl.) Baker urnplant 1/0
AELI Aechmea lingulata (L.) Baker West Indian livingvase 1/0
AEGIL Aegilops L. goatgrass 1/0
AEBI Aegilops bicornis (Forsskal) Jaub. & Spach goatgrass 1/0
AECO Aegilops comosa Sibth. & Smith goatgrass 1/0
AECR Aegilops crassa Boiss. Persian goatgrass 1/0
AECY Aegilops cylindrica Host jointed goatgrass 1/1
AEGE Aegilops geniculata Roth ovate goatgrass 1/0
AELO Aegilops longissima Schweinf. & Muschl. goatgrass 1/0
AELO2 Aegilops lorentii Hochst. Lorent's goatgrass    
AEBI2 Aegilops biuncialis Vis.   1/0
AESP2 Aegilops speltoides Tausch goatgrass 1/0
AETR Aegilops triuncialis L. barbed goatgrass 1/1
AEVE Aegilops ventricosa Tausch goatgrass 1/0
AEPO Aegopodium podagraria L. bishop's goutweed 0/1
AECE Aegopogon cenchroides Humb. & Bonpl. relaxgrass 2/0
AETE Aegopogon tenellus (DC.) Trin. fragilegrass 0/1
AEONI Aeonium Webb & Berth. aeonium 3/0
AEAR4 Aeonium arboreum (L.) Webb & Berth. tree aenium 1/0
AEHA2 Aeonium haworthii Webb & Berth. Haworth's aeonium 2/0
AEUN Aeonium undulatum Webb & Berth. saucer-plant 3/0
AEAM Aeschynomene americana L. shyleaf 3/1
AEEL2 Aeschynomene elaphroxylon (Guill. & Perr.) Taubert ambatch 1/0
AEIN Aeschynomene indica L. Indian jointvetch 2/0
AERU Aeschynomene rudis Benth. zigzag jointvetch 1/0
AESE2 Aeschynomene sensitiva Sw. sensitive jointvetch 1/0
AEVI3 Aeschynomene virginica (L.) B.S.P. Virginia jointvetch 4/1
AEVI Aeschynomene viscidula Michx. sticky jointvetch 1/0
AESCU Aesculus L. buckeye 1/1
AECA Aesculus californica (Spach) Nutt. California buckeye 5/0
AEFL Aesculus flava Ait. yellow buckeye 1/0
AEOC2 Aesculus octandra Marsh.   7/2
AEGL Aesculus glabra Willd. Ohio buckeye 10/1
AEGLA Aesculus glabra Willd. var. arguta (Buckl.) B.L. Robins. Ohio buckeye    
AEAR2 Aesculus arguta Buckl.   0/1
AEHI Aesculus hippocastanum L. horse chestnut 4/1
AEPA2 Aesculus parviflora Walt. bottlebrush buckeye 1/0
AEPA Aesculus pavia L. red buckeye 8/2
AECY2 Aethusa cynapium L. fool's parsley 1/1
AFFA Afrocarpus falcatus (Thunb.) C.N. Page yellowwood 3/0
AFAF Afzelia africana Sm. ex Pers. African mahogany 1/0
AFBE Afzelia bella Harms pretty afzelia 1/0
AFQU Afzelia quanzensis Welw. pod mahogany 4/0
AGAP3 Agalinis aphylla (Nutt.) Raf. scaleleaf false foxglove 1/0
AGAS2 Agalinis aspera (Dougl. ex Benth.) Britt. tall false foxglove 0/1
AGAU3 Agalinis auriculata (Michx.) Blake earleaf false foxglove    
OTAU Otophylla auriculata (Michx.) Small   0/1
AGDE6 Agalinis densiflora (Benth.) Blake Osage false foxglove    
OTDE Otophylla densiflora (Benth.) Small   0/1
AGFA2 Agalinis fasciculata (Ell.) Raf. beach false foxglove 4/1
AGGA Agalinis gattingeri (Small) Small roundstem false foxglove 0/1
AGHE4 Agalinis heterophylla (Nutt.) Small ex Britt. prairie false foxglove 2/1
AGLI2 Agalinis linifolia (Nutt.) Britt. flaxleaf false foxglove 0/1
AGMA3 Agalinis maritima (Raf.) Raf. saltmarsh false foxglove 1/1
AGOB Agalinis obtusifolia Raf. tenlobe false foxglove    
AGPA16 Agalinis parvifolia (Benth.) Small ex Britt.   0/1
AGPA12 Agalinis paupercula (Gray) Britt. smallflower false foxglove 0/1
AGPU5 Agalinis purpurea (L.) Pennell purple false foxglove 4/2
GEPU7 Gerardia purpurea L.   1/0
AGSE3 Agalinis setacea (J.F. Gmel.) Raf. threadleaf false foxglove 0/1
GESE5 Gerardia setacea J.F. Gmel.   1/0
AGSK Agalinis skinneriana (Wood) Britt. Skinner's false foxglove 0/1
AGTE3 Agalinis tenuifolia (Vahl) Raf. slenderleaf false foxglove 2/1
AGTEM Agalinis tenuifolia (Vahl) Raf. var. macrophylla (Benth.) Blake slenderleaf false foxglove    
AGBE Agalinis besseyana (Britt.) Britt.   0/1
AGTET Agalinis tenuifolia (Vahl) Raf. var. tenuifolia slenderleaf false foxglove    
GETE6 Gerardia tenuifolia Vahl   1/0
AGAPA2 Agapanthus L'Hér. agapanthus 2/0
AGAF Agapanthus africanus (L.) Hoffsgg. lily of the Nile 1/0
AGPRO Agapanthus praecox Willd. ssp. orientalis (F. M. Leight.) F. M. Leight. 2/0
AGOR4 Agapanthus orientalis F.M. Leighton   3/0
AGPO2 Agarista populifolia (Lam.) Judd Florida hobblebush    
LEPO4 Leucothoe populifolia (Lam.) Dippel   3/0
AGFO Agastache foeniculum (Pursh) Kuntze blue giant hyssop    
AGAN3 Agastache anethiodora (Nutt.) Britt.   0/1
AGNE2 Agastache nepetoides (L.) Kuntze yellow giant hyssop 3/1
AGOC Agastache occidentalis (Piper) Heller western giant hyssop 2/0
AGPA Agastache pallidiflora (Heller) Rydb. Bill Williams Mountain giant hyssop 3/0
AGPAN Agastache pallidiflora (Heller) Rydb. ssp. neomexicana (Briq.) Lint & Epling Bill Williams Mountain giant hyssop 2/0
AGPA2 Agastache parvifolia Eastw. smallleaf giant hyssop 5/0
AGSC Agastache scrophulariifolia (Willd.) Kuntze purple giant hyssop 0/1
AGSCM Agastache scrophulariifolia (Willd.) Kuntze var. mollis (Fern.) Heller   1/0
AGUR Agastache urticifolia (Benth.) Kuntze nettleleaf giant hyssop 7/0
AGURU Agastache urticifolia (Benth.) Kuntze var. urticifolia nettleleaf giant hyssop 2/0
AGWR Agastache wrightii (Greenm.) Woot. & Standl. Sonoran giant hyssop 3/0
AGAU4 Agathis australis (D. Don) Steudel kauri 1/0
AGAVE Agave L. agave 8/0
AGAN4 Agave angustifolia Haw. century plant 4/0
AGAR8 Agave ×arizonica Gentry & J.Z. Weber (pro sp.) [chrysantha × toumeyana] Arizona century plant    
AGAR3 Agave arizonica Gentry & J.H. Weber [hybrid]   1/0
AGCU3 Agave cupreata Trel. & Berger 2/0
AGDE Agave deserti Engelm. desert agave 3/0
AGGR4 Agave gracilipes Trel. slimfoot century plant 1/0
AGLE Agave lechuguilla Torr. lechuguilla 5/0
AGPA3 Agave palmeri Engelm. Palmer's century plant 2/0
AGPA4 Agave parryi Engelm. Parry's agave 6/0
AGPA5 Agave parviflora Torr. smallflower century plant 1/0
AGSH Agave shawii Engelm. coastal agave 1/0
AGSI2 Agave sisalana Perrine sisal hemp 3/0
AGUT Agave utahensis Engelm. Utah agave 4/0
AGUTK Agave utahensis Engelm. var. kaibabensis (McKelvey) Breitung Kaibab agave 1/0
AGUTN Agave utahensis Engelm. var. nevadensis Engelm. ex Greenm. & Roush Nevada agave 3/0
AGALA Ageratina altissima (L.) King & H.E. Robins. var. altissima white snakeroot    
EURU6 Eupatorium rugosum Houtt.   3/0
AGALR Ageratina altissima (L.) King & H.E. Robins. var. roanensis (Small) Clewell & Woot. white snakeroot    
EUUR4 Eupatorium urticifolium Reichard   0/1
AGARA Ageratina aromatica (L.) Spach var. aromatica lesser snakeroot 1/0
EUAR7 Eupatorium aromaticum L.   0/1
AGHE5 Ageratina herbacea (Gray) King & H.E. Robins. fragrant snakeroot 2/0
AGLU Ageratina luciae-brauniae (Fern.) King & H.E. Robins. Lucy Braun's snakeroot 4/0
AGOC2 Ageratina occidentalis (Hook.) King & H.E. Robins. western snakeroot 5/0
EUOC5 Eupatorium occidentale Hook.   1/0
AGCO2 Ageratum corymbosum Zuccagni ex Pers. flat-top whiteweed 2/0
AGCO4 Aglaonema commutatum Schott Philippine evergreen 1/0
AGOSE Agoseris Raf. agoseris 1/0
AGAP2 Agoseris apargioides (Less.) Greene woolly goat chicory 1/0
AGAPE Agoseris apargioides (Less.) Greene var. eastwoodiae (Fedde) Munz woolly goat chicory 4/0
AGAU2 Agoseris aurantiaca (Hook.) Greene orange agoseris 3/1
AGAUA Agoseris aurantiaca (Hook.) Greene var. aurantiaca orange agoseris 2/0
AGEL Agoseris elata (Nutt.) Greene tall agoseris 1/0
AGGL Agoseris glauca (Pursh) Raf. pale agoseris 0/1
AGGLD Agoseris glauca (Pursh) Raf. var. dasycephala (Torr. & A. Gray) Jeps. pale agoseris 1/0
AGGLG Agoseris glauca (Pursh) Raf. var. glauca pale agoseris 1/0
AGGLL Agoseris glauca (Pursh) Raf. var. laciniata (D.C. Eat.) Smiley false agoseris 4/0
AGAR5 Agoseris arizonica Greene   3/0
AGPA14 Agoseris parviflora (Nutt.) Greene   0/1
AGGR Agoseris grandiflora (Nutt.) Greene bigflower agoseris 6/0
AGHEH Agoseris heterophylla (Nutt.) Greene var. heterophylla annual agoseris 2/0
AGRE Agoseris retrorsa (Benth.) Greene spearleaf agoseris 2/0
AGHI60 Agrestia hispida (Mereschk.) Hale & W.L. Culb. hispid agrestia lichen 2/0
AGRIM Agrimonia L. agrimony 1/0
AGEU Agrimonia eupatoria L. churchsteeples 1/0
AGGR2 Agrimonia gryposepala Wallr. tall hairy agrimony 2/2
AGMI2 Agrimonia microcarpa Wallr. smallfruit agrimony    
AGPU6 Agrimonia pumila Muhl. ex Bickn.   0/1
AGPA6 Agrimonia parviflora Ait. harvestlice 3/2
AGPU Agrimonia pubescens Wallr. soft agrimony    
AGMO3 Agrimonia mollis (Torr. & Gray) Britt.   1/1
AGRO3 Agrimonia rostellata Wallr. beaked agrimony 2/2
AGST Agrimonia striata Michx. roadside agrimony 3/2
AGROP2 Agropyron Gaertn. wheatgrass 4/0
AGCR Agropyron cristatum (L.) Gaertn. crested wheatgrass 13/0
AGCRP8 Agropyron cristatum (L.) Gaertn. ssp. pectinatum (Bieb.) Tzvelev crested wheatgrass    
AGPE5 Agropyron pectiniforme Roemer & J.A. Schultes   2/0
AGDE2 Agropyron desertorum (Fisch. ex Link) J.A. Schultes desert wheatgrass 3/1
AGFR Agropyron fragile (Roth) P. Candargy Siberian wheatgrass 3/0
AGSI Agropyron sibiricum (Willd.) Beauv.   2/0
AGGI Agrostemma githago L. common corncockle 4/1
AGROS2 Agrostis L. bentgrass 2/0
AGAE Agrostis aequivalvis (Trin.) Trin. arctic bentgrass 0/1
AGAV Agrostis avenacea J.F. Gmel. Pacific bentgrass 0/1
AGBL Agrostis blasdalei A.S. Hitchc. Blasdale bentgrass 0/1
AGBR3 Agrostis breviculmis auct. non A.S. Hitchc. [misapplied]   1/0
AGCA4 Agrostis canina L. velvet bentgrass 0/2
AGCA5 Agrostis capillaris L. colonial bentgrass    
AGTE Agrostis tenuis Sibthorp   0/1
AGTEA Agrostis tenuis Sibthorp var. aristata (Parnell) Druce   0/1
AGCA11 Agrostis castellana Boiss. & Reuter bentgrass 2/0
AGCL Agrostis clavata Trin. clavate bentgrass 1/0
AGDE7 Agrostis densiflora Vasey California bentgrass    
AGCA3 Agrostis californica Trin.   0/1
AGEL4 Agrostis elliottiana J.A. Schultes Elliott's bentgrass 0/2
AGEX2 Agrostis exigua Thurb.   0/1
AGEX Agrostis exarata Trin. spike bentgrass 2/1
AGAM2 Agrostis ampla A.S. Hitchc.   0/1
AGAS4 Agrostis asperifolia Trin.   0/1
AGLO2 Agrostis longiligula A.S. Hitchc.   0/1
AGGI2 Agrostis gigantea Roth redtop 1/0
AGAL3 Agrostis alba auct. non L. [misapplied]   0/3
AGNI Agrostis nigra With.   0/1
AGHA2 Agrostis hallii Vasey Hall's bentgrass 0/1
AGHE3 Agrostis hendersonii A.S. Hitchc. Henderson's bentgrass 0/1
AGAR2 Agrostis aristiglumis Swallen   0/1
AGHO Agrostis hooveri Swallen Hoover's bentgrass 0/1
AGHO2 Agrostis howellii Scribn. Howell's bentgrass 0/1
AGHU Agrostis humilis Vasey alpine bentgrass 0/1
AGTH2 Agrostis thurberiana A.S. Hitchc.   0/1
AGHY Agrostis hyemalis (Walt.) B.S.P. winter bentgrass 2/2
AGID Agrostis idahoensis Nash Idaho bentgrass 1/1
AGME3 Agrostis mertensii Trin. northern bentgrass    
AGBO2 Agrostis borealis Hartman   2/2
AGRU2 Agrostis rupestris auct. non All. [misapplied]   0/1
AGMI3 Agrostis microphylla Steud. small-leaf bentgrass 0/1
AGOR Agrostis oregonensis Vasey Oregon bentgrass 0/1
AGPA8 Agrostis pallens Trin. seashore bentgrass 0/1
AGDI Agrostis diegoensis Vasey   0/1
AGLE2 Agrostis lepida A.S. Hitchc.   0/1
AGPE Agrostis perennans (Walt.) Tuckerman upland bentgrass 1/3
AGAL8 Agrostis altissima (Walt.) Tuckerman   0/2
AGOR3 Agrostis oreophila Trin.   0/1
AGSC6 Agrostis schweinitzii Trin.   0/1
AGRO4 Agrostis rossiae Vasey Ross' bentgrass 0/1
AGVA4 Agrostis variabilis auct. non Rydb. [misapplied]   0/1
AGSC5 Agrostis scabra Willd. rough bentgrass 0/2
AGGE2 Agrostis geminata Trin.   0/1
AGST2 Agrostis stolonifera L. creeping bentgrass 2/2
AGMA10 Agrostis maritima Lam.   0/1
AGPA17 Agrostis palustris Huds.   0/1
AGTA Agrostis tandilensis (Kuntze) Parodi Kennedy's bentgrass    
AGKE2 Agrostis kennedyana Beetle   0/1
AGVI9 Agrostis vinealis Schreb. brown bentgrass    
AGTR4 Agrostis trinii Turcz.   1/0
AILAN Ailanthus Desf. ailanthus 0/1
AIAL Ailanthus altissima (P. Mill.) Swingle tree of heaven 9/0
AIGL Ailanthus glandulosa Desf.   0/1
AIMI Aiphanes minima (Gaertn.) Burret Guinea bactris 1/0
AIRA Aira L. hairgrass 1/0
AICA Aira caryophyllea L. silver hairgrass 2/1
AICAC2 Aira caryophyllea L. var. caryophyllea silver hairgrass    
ASCA22 Aspris caryophyllea (L.) Nash   0/1
AIEL4 Aira elegans Willd. ex Kunth annual silver hairgrass 0/1
AICA3 Aira capillaris Host, non Savi   1/0
AIPR Aira praecox L. yellow hairgrass 1/1
ASPR14 Aspris praecox (L.) Nash   0/1
AJGE Ajuga genevensis L. blue bugle 0/1
AJRE Ajuga reptans L. common bugle 2/1
AKQU Akebia quinata (Houtt.) Dcne. chocolate vine 2/0
ALBIZ Albizia Durazz. albizia 0/1
ALAD Albizia adinocephala (Donn. Sm.) Britton & Rose ex Record cream albizia 1/0
ALCH2 Albizia chinensis (Osbeck) Merr. Chinese albizia 1/0
ALJU Albizia julibrissin Durazz. silktree 8/1
ALOD Albizia odoratissima (L. f.) Benth. albizia 1/0
ALPR Albizia procera (Roxb.) Benth. tall albizia 1/0
ALSA10 Albizia saponaria (Lour.) Blume ex Miq. whiteflower albizia 1/0
ALZY Albizia zygia (DC.) Macbr. albizia 1/0
ALRO3 Alcea rosea L. hollyhock    
ALRO4 Althaea rosea (L.) Cav.   2/0
ALMO4 Alchemilla monticola Opiz hairy lady's mantle 1/0
ALPR5 Alchemilla pratensis auct. non F.W. Schmidt [misapplied]   0/1
ALAU Aletris aurea Walt. golden colicroot 3/1
ALBR6 Aletris bracteata Northrop bracted colicroot 2/0
ALFA2 Aletris farinosa L. white colicroot 7/1
ALMO2 Aleurites moluccana (L.) Willd. Indian walnut 4/0
ALMA12 Alhagi maurorum Medik. camelthorn 1/0
ALFO3 Aliciella formosa (Greene ex Brand) J.M. Porter Aztec gilia 2/0
ALLAL3 Aliciella latifolia (S. Wats.) J.M. Porter ssp. latifolia broadleaf gilia    
GILA2 Gilia latifolia S. Wats.   1/0
ALLE7 Aliciella leptomeria (A. Gray) J.M. Porter sand gilia 2/0
ALNY2 Aliciella nyensis (Reveal) J.M. Porter Nye gilia    
GINY Gilia nyensis Reveal   6/0
ALPI2 Aliciella pinnatifida (Nutt. ex Gray) J.M. Porter sticky gilia 4/0
GIPI Gilia pinnatifida Nutt. ex Gray   2/1
ALSU9 Aliciella subnuda (Torr. ex Gray) J.M. Porter coral gilia    
GISU Gilia subnuda Torr. ex Gray   3/0
ALGR Alisma gramineum Lej. narrowleaf water plantain 1/1
ALGE3 Alisma geyeri Torr.   0/1
ALPL Alisma plantago-aquatica L. European water plantain 2/0
ALSU Alisma subcordatum Raf. American water plantain 4/2
ALTR7 Alisma triviale Pursh northern water plantain    
ALBR10 Alisma brevipes Greene   0/1
ALBL Allamanda blanchetii A. DC. purple allamanda 1/0
ALCA7 Allamanda cathartica L. golden trumpet 6/0
ALSC4 Allamanda schottii Pohl bush allamanda 1/0
ALOC2 Allenrolfea occidentalis (S. Wats.) Kuntze iodinebush 3/0
ALPE4 Alliaria petiolata (Bieb.) Cavara & Grande garlic mustard 1/0
ALAL8 Alliaria alliaria (L.) Britt.   0/1
ALOF3 Alliaria officinalis Andrz. ex Bieb.   4/0
ALIN Allionia incarnata L. trailing windmills 7/0
ALLIU Allium L. onion 7/0
ALAC4 Allium acuminatum Hook. tapertip onion 6/0
ALAF Allium aflatunense B. Fedtsch. 1/0
ALAL4 Allium allegheniense Small 0/1
ALAM2 Allium amplectens Torr. narrowleaf onion 2/0
ALAN Allium anceps Kellogg twinleaf onion 4/0
ALAS2 Allium ascalonicum L. wild onion 1/0
ALAT Allium atrorubens S. Wats. darkred onion 6/0
ALBI2 Allium bisceptrum S. Wats. twincrest onion 2/0
ALBIB Allium bisceptrum S. Wats. var. bisceptrum twincrest onion 3/0
ALCA2 Allium campanulatum S. Wats. dusky onion 2/0
ALCA3 Allium canadense L. meadow garlic 3/1
ALCAC Allium canadense L. var. canadense meadow garlic 1/0
ALCAM Allium canadense L. var. mobilense (Regel) Ownbey meadow garlic 4/0
ALMU4 Allium mutabile Michx.   1/1
ALCE Allium cepa L. garden onion 1/0
ALCE2 Allium cernuum Roth nodding onion 5/1
ALCO Allium coryi M.E. Jones yellowflower onion 3/0
ALCR3 Allium cratericola Eastw. Cascade onion 2/0
ALCR5 Allium crispum Greene crinkled onion 3/0
ALDE6 Allium denticulatum (Ownbey & Aase) McNeal toothed onion 2/0
ALDI2 Allium dichlamydeum Greene coastal onion 2/0
ALDO Allium douglasii Hook. Douglas' onion 2/0
ALDR Allium drummondii Regel Drummond's onion 7/0
ALNU2 Allium nuttallii S. Wats.   0/1
ALFA3 Allium falcifolium Hook. & Arn. scytheleaf onion 3/0
ALBR8 Allium breweri S. Wats.   1/0
ALFI4 Allium fistulosum L. welsh onion 1/0
ALGE Allium geyeri S. Wats. Geyer's onion 6/0
ALGET Allium geyeri S. Watson var. tenerum M.E. Jones bulbil onion 1/0
ALHA Allium haematochiton S. Wats. redskin onion 3/0
ALHY Allium hyalinum Curran glassy onion 2/0
ALKU Allium kunthii G. Don Kunth's onion 2/0
ALLA3 Allium lacunosum S. Wats. pitted onion 2/0
ALLAL Allium lacunosum S. Wats. var. lacunosum pitted onion 2/0
ALLE3 Allium lemmonii S. Wats. Lemmon's onion 2/0
ALMA4 Allium macropetalum Rydb. largeflower onion 5/0
ALMU6 Allium munzii (Ownbey ex Traub) McNeal Munz's onion 3/0
ALNE3 Allium neapolitanum Cirillo white garlic 1/0
ALNE Allium nevadense S. Wats. Nevada onion 5/0
ALNI Allium nigrum L. black garlic 2/0
ALOB Allium obtusum J.G. Lemmon red Sierra onion 3/0
ALOD2 Allium odorum L. Chinese chives 1/0
ALPA20 Allium paniculatum L. Mediterranean onion 1/0
ALPA3 Allium parvum Kellogg small onion 7/0
ALPES Allium perdulce S.V. Fraser var. sperryi Ownbey Sperry's onion 1/0
ALPL2 Allium platycaule S. Wats. broadstemmed onion 4/0
ALPO2 Allium porrum L. garden leek 1/0
ALPR2 Allium praecox Brandeg. early onion 3/0
ALSA2 Allium sativum L. cultivated garlic 1/0
ALSC Allium schoenoprasum L. wild chives 3/0
ALSCS Allium schoenoprasum L. var. sibiricum (L.) Hartman wild chives    
ALSI4 Allium sibiricum L.   0/1
ALSC3 Allium scorodoprasum L. sand leek 1/0
ALSCR Allium scorodoprasum L. ssp. rotundum (L.) Stearn sand leek 1/0
ALSE Allium serratum S. Wats. [excluded] 1/0
ALSI2 Allium siskiyouense Ownbey Siskiyou onion 4/0
ALST Allium stellatum Nutt. ex Ker-Gawl. autumn onion 3/1
ALTE Allium textile A. Nels. & J.F. Macbr. textile onion 2/0
ALRE5 Allium reticulatum G. Don   0/1
ALTO Allium tolmiei (Hook.) Baker ex S. Wats. Tolmie's onion 1/0
ALTR3 Allium tricoccum Ait. wild leek 6/1
ALTR4 Allium triquetrum L. threecorner leek 1/0
ALTU Allium tuolumnense (Ownbey & Aase) S. Denison & McNeal Rawhide HIll onion 2/0
ALUN Allium unifolium Kellogg oneleaf onion 1/0
ALUR Allium ursinum L. bear garlic 5/0
ALVA Allium validum S. Wats. Pacific onion 4/0
ALVI3 Allium victorialis L. victory onion 1/0
ALVI Allium vineale L. wild garlic 4/1
ALTE3 Allolepis texana (Vasey) Söderstrom & Decker Texas salt 1/0
DITE8 Distichlis texana (Vasey) Scribn.   0/1
ALGIV Allophyllum gilioides (Benth.) A.& V. Grant ssp. violaceum (Heller) Day dense false gilyflower 1/0
ALCI3 Alloteropsis cimicina (L.) Stapf summergrass    
COCI Coridochloa cimicina (L.) Nees ex Chase   2/0
ALVI2 Allotropa virgata Torr. & Gray ex Gray sugarstick 5/0
ALPA14 Almutaster pauciflorus (Nutt.) A.& D. Löve alkali marsh aster 2/0
ALNUS Alnus P. Mill. alder 3/1
ALGL2 Alnus glutinosa (L.) Gaertn. European alder 2/1
ALAL7 Alnus alnus (L.) Britt.   0/1
ALIN2 Alnus incana (L.) Moench gray alder 4/3
ALINR Alnus incana (L.) Moench ssp. rugosa (Du Roi) Clausen speckled alder    
ALRU3 Alnus rugosa (Du Roi) Spreng.   5/1
ALINT Alnus incana (L.) Moench ssp. tenuifolia (Nutt.) Breitung thinleaf alder 5/0
ALTE2 Alnus tenuifolia Nutt.   1/0
ALMA7 Alnus maritima (Marsh.) Muhl. ex Nutt. seaside alder 2/2
ALOB2 Alnus oblongifolia Torr. Arizona alder 2/0
ALRH2 Alnus rhombifolia Nutt. white alder 7/0
ALRU2 Alnus rubra Bong. red alder 11/0
ALSE2 Alnus serrulata (Ait.) Willd. hazel alder 7/1
ALVI5 Alnus viridis (Vill.) Lam. & DC. green alder 1/1
ALVIC Alnus viridis (Vill.) Lam. & DC. ssp. crispa (Ait.) Turrill mountain alder 1/0
ALCR6 Alnus crispa (Ait.) Pursh   2/0
ALVIS Alnus viridis (Vill.) Lam. & DC. ssp. sinuata (Regel) A.& D. Löve Sitka alder 8/0
ALAL9 Alnus alnobetula (Ehrh.) K. Koch p.p.   0/1
ALBR14 Alocasia brisbanensis (Bailey) Domin cunjevoi 2/0
ALOE Aloe L. aloe 6/0
ALAR8 Aloe arborescens Miller candelabra aloe 1/0
ALFE2 Aloe ferox Miller Cape aloe 3/0
ALGR8 Aloe graminicola Reynolds 4/0
ALSE10 Aloe secundiflora Engl. 1/0
ALSU8 Aloe succotrina All. Fynbos aloe 2/0
ALVE2 Aloe vera (L.) Burm. f. Barbados aloe 1/0
ALBR70 Aloina brevirostris (Hook. & Grev.) Kindb. aloina moss 2/0
ALRI2 Aloina rigida (Hedw.) Limpr. rigid aloina moss 3/0
ALAE Alopecurus aequalis Sobol. shortawn foxtail 1/1
ALAEA Alopecurus aequalis Sobol. var. aequalis shortawn foxtail    
ALAR5 Alopecurus aristulatus Michx.   0/1
ALAL2 Alopecurus alpinus Sm. boreal alopecurus 1/2
ALAR Alopecurus arundinaceus Poir. creeping meadow foxtail 1/0
ALCA4 Alopecurus carolinianus Walt. Carolina foxtail 2/2
ALGE2 Alopecurus geniculatus L. water foxtail 0/3
ALGEG4 Alopecurus geniculatus L. var. geniculatus water foxtail    
ALPA9 Alopecurus pallescens Piper   0/1
ALMY Alopecurus myosuroides Huds. slender meadow foxtail 2/3
ALPR3 Alopecurus pratensis L. meadow foxtail 1/3
ALSA3 Alopecurus saccatus Vasey Pacific foxtail 0/1
ALHO3 Alopecurus howellii Vasey   0/1
ALDR2 Alophia drummondii (Graham) R.C. Foster propeller flower 1/0
EUPU6 Eustylis purpurea (Herbert) Engelm. & Gray   2/0
ALGR2 Aloysia gratissima (Gillies & Hook.) Troncoso whitebrush 1/0
ALWR Aloysia wrightii (Gray) Heller Wright's beebrush 3/0
ALPU4 Alpinia purpurata (Vieill.) K. Schum. red ginger 1/0
ALZE Alpinia zerumbet (Pers.) Burtt & R.M. Sm. shellplant 5/0
ALNU3 Alpinia nutans (L.) Roscoe   2/0
ALMA16 Alstonia macrophylla Wallich ex G. Don deviltree 1/0
ALSTR Alstroemeria L. lily of the Incas 5/0
ALAU6 Alstroemeria aurea Graham Peruvian-lily 1/0
ALAU5 Alstroemeria aurantiaca D. Don   4/0
ALHA2 Alstroemeria haemantha Ruiz & Pav. purple-spot parrot-lily 1/0
ALPU2 Alstroemeria pulchella L. f. parrot-lily 1/0
ALBR5 Alternanthera brasiliana (L.) Kuntze Brazilian joyweed    
ALDE2 Alternanthera dentata (Moench) Stuchlik ex R.E. Fries   1/0
ALPH Alternanthera philoxeroides (Mart.) Griseb. alligatorweed 3/1
ALHI2 Althaea hirsuta L. hairy marshmallow 1/0
ALOF2 Althaea officinalis L. common marshmallow 0/1
ALRU4 Alysicarpus rugosus (Willd.) DC. red moneywort 1/0
ALVA2 Alysicarpus vaginalis (L.) DC. white moneywort 3/0
ALUT3 Alyssoides utriculata (L.) Medik. 1/0
ALAL3 Alyssum alyssoides (L.) L. pale madwort 1/1
ALDE Alyssum desertorum Stapf desert madwort 1/0
ALSI8 Alyssum simplex Rudolphi alyssum    
ALMI2 Alyssum minus (L.) Rothm. nom. illeg.   1/0
ALPA7 Alyssum parviflorum Fisch. ex Bieb.   1/0
AMAC Amaranthus acanthochiton Sauer greenstripe    
ACWR6 Acanthochiton wrightii Torr.   1/0
AMAL Amaranthus albus L. prostrate pigweed 1/1
AMGR Amaranthus graecizans auct. non L. p.p. [misapplied]   0/1
AMAR Amaranthus arenicola I.M. Johnston sandhill amaranth    
AMTO Amaranthus torreyi auct. non (Gray) Benth. ex S. Wats. [misapplied]   0/1
AMBL Amaranthus blitoides S. Wats. mat amaranth 1/1
AMBLE2 Amaranthus blitum L. var. emarginatus (Moq. ex Uline & Bray) comb. nov. ined.    
AMLI Amaranthus lividus auct. non L. [misapplied]   0/1
AMCA Amaranthus californicus (Moq.) S. Wats. California amaranth 1/1
AMCA2 Amaranthus cannabinus (L.) Sauer tidalmarsh amaranth    
ACCA11 Acnida cannabina L.   0/1
AMCA3 Amaranthus caudatus L. love-lies-bleeding 1/0
AMCR2 Amaranthus crispus (Lesp. & Thev.) N. Terracc. crispleaf amaranth 0/1
AMCR4 Amaranthus cruentus L. red amaranth    
AMPA10 Amaranthus paniculatus L.   1/0
AMDE Amaranthus deflexus L. largefruit amaranth 0/1
AMHY Amaranthus hybridus L. slim amaranth 2/1
AMPA Amaranthus palmeri S. Wats. carelessweed 1/1
AMPO2 Amaranthus powellii S. Wats. Powell's amaranth 1/0
AMPU2 Amaranthus pumilus Raf. seaside amaranth 0/1
AMRE Amaranthus retroflexus L. redroot amaranth 2/2
AMSP Amaranthus spinosus L. spiny amaranth 1/1
AMTR2 Amaranthus tricolor L. Joseph's-coat 1/0
AMGA Amaranthus gangeticus L.   1/0
AMTU Amaranthus tuberculatus (Moq.) Sauer roughfruit amaranth    
ACTA Acnida tamariscina auct. non (Nutt.) Wood [misapplied]   0/1
ACTU Acnida tuberculata Moq.   0/1
AMRU Amaranthus rudis Sauer   1/1
AMARY Amaryllis L. amaryllis 8/0
AMBE3 Amaryllis belladonna L. belladonna lily 4/0
AMMO Amberboa moschata (L.) DC. sweetsultan    
CEMO3 Centaurea moschata L.   1/0
AMDE70 Amblyodon dealbatus (Hedw.) Bruch & Schimp. in B.S.G. amblyodon moss 4/0
AMSE Amblyolepis setigera DC. huisache daisy 2/0
AMSE3 Amblystegium serpens (Hedw.) Schimp. in B.S.G. amblystegium moss 5/0
AMAC2 Ambrosia acanthicarpa Hook. flatspine burr ragweed    
GAAC2 Gaertneria acanthicarpa (Hook.) Britt.   0/1
AMAR2 Ambrosia artemisiifolia L. annual ragweed 9/1
AMARE Ambrosia artemisiifolia L. var. elatior (L.) Descourtils annual ragweed    
AMEL2 Ambrosia elatior L.   0/1
AMBI2 Ambrosia bidentata Michx. lanceleaf ragweed 1/1
AMCH4 Ambrosia chamissonis (Less.) Greene silver burr ragweed 4/0
FRCH4 Franseria chamissonis Less.   1/0
AMDE4 Ambrosia deltoidea (Torr.) Payne triangle burr ragweed 2/0
AMDU2 Ambrosia dumosa (Gray) Payne burrobush 3/0
AMGR5 Ambrosia grayi (A. Nels.) Shinners woollyleaf burr ragweed 1/0
AMPS Ambrosia psilostachya DC. Cuman ragweed 1/1
AMTO3 Ambrosia tomentosa Nutt. skeletonleaf burr ragweed 1/0
GADI3 Gaertneria discolor (Nutt.) Kuntze   0/1
GATO3 Gaertneria tomentosa (Nutt.) Heller   0/1
AMTR Ambrosia trifida L. great ragweed 9/2
AMELA Amelanchier Medik. serviceberry 3/1
AMAL2 Amelanchier alnifolia (Nutt.) Nutt. ex M. Roemer Saskatoon serviceberry 4/1
AMALS Amelanchier alnifolia (Nutt.) Nutt. ex M. Roemer var. semiintegrifolia (Hook.) C.L. Hitchc. Saskatoon serviceberry 2/0
AMFL Amelanchier florida Lindl.   2/0
AMAR3 Amelanchier arborea (Michx. f.) Fern. common serviceberry 4/0
AMBA Amelanchier bartramiana (Tausch) M. Roemer oblongfruit serviceberry 0/1
AMCA4 Amelanchier canadensis (L.) Medik. Canadian serviceberry 6/2
AMIN4 Amelanchier ×intermedia Spach (pro sp.) [arborea × canadensis] 0/1
AMLA Amelanchier laevis Wieg. Allegheny serviceberry 2/1
AMARC Amelanchier arborea (Michx. f.) Fern. var. cordifolia (Ashe) Boivin   1/0
AMSA Amelanchier sanguinea (Pursh) DC. roundleaf serviceberry 0/1
AMST80 Amelanchier stolonifera Wieg. running serviceberry    
AMSP2 Amelanchier spicata auct. p.p., non (Lam.) K. Koch   2/1
AMUT Amelanchier utahensis Koehne Utah serviceberry 8/0
AMRO Amerorchis rotundifolia (Banks ex Pursh) Hultén roundleaf orchid 3/0
ORRO3 Orchis rotundifolia Banks ex Pursh   0/1
AMMU Amianthium muscitoxicum (Walt.) Gray flypoison 4/0
CHMU5 Chrosperma muscitoxicum (Walt.) Kuntze   0/1
AMAU2 Ammannia auriculata Willd. eared redstem 0/1
AMCO Ammannia coccinea Rottb. valley redstem 5/2
AMLA3 Ammannia latifolia L. pink redstem 2/0
AMKO Ammannia koehnei Britt.   0/1
AMMA Ammi majus L. large bullwort 1/0
AMVI2 Ammi visnaga (L.) Lam. toothpickweed 1/0
AMTI Ammocharis tinneana (Kotschy & Peyr.) Milne-Redhead & Schweickerdt 6/0
AMAR4 Ammophila arenaria (L.) Link European beachgrass 4/2
AMBR Ammophila breviligulata Fern. American beachgrass 2/1
AMPO4 Ammoselinum popei Torr. & Gray plains sandparsley 0/1
AMPA3 Amoreuxia palmatifida Moc. & Sessé ex DC. Mexican yellowshow 1/0
AMORP Amorpha L. false indigo 2/1
AMCA5 Amorpha californica Nutt. California false indigo 1/0
AMCAN Amorpha californica Nutt. var. napensis Jepson Napa false indigo 2/0
AMCA6 Amorpha canescens Pursh leadplant 2/1
AMFR Amorpha fruticosa L. desert false indigo 10/2
AMTE7 Amorpha tennesseensis Shuttlw. ex Kunze   1/0
AMGL2 Amorpha glabra Desf. ex Poir. mountain false indigo 1/0
AMNA Amorpha nana Nutt. dwarf false indigo 2/1
AMOU Amorpha ouachitensis Wilbur Ouachita false indigo 2/0
AMKO2 Amorphophallus konjac K. Koch devil's tongue 3/0
AMPA13 Amorphophallus paeoniifolius (Dennst.) Nicolson whitespot giant arum 1/0
AMAR5 Ampelopsis arborea (L.) Koehne peppervine 6/1
AMCO2 Ampelopsis cordata Michx. heartleaf peppervine 1/2
AMDR Amphiachyris dracunculoides (DC.) Nutt. prairie broomweed 2/1
AMSC4 Amphibromus scabrivalvis (Trin.) Swallen swamp wallaby grass 2/0
AMBR2 Amphicarpaea bracteata (L.) Fern. American hogpeanut 3/0
AMBRC Amphicarpaea bracteata (L.) Fernald var. comosa (L.) Fernald American hogpeanut    
AMCO6 Amphicarpaea comosa (L.) G. Don   1/0
AMPI Amphicarpaea pitcheri Torr. & A. Gray   2/0
FACO2 Falcata comosa (L.) Kuntze   0/1
FAPI Falcata pitcheri (Torr. & Gray) Kuntze   0/1
AMMU2 Amphicarpum muehlenbergianum (J.A. Schultes) A.S. Hitchc. Muhlenberg maidencane 0/1
AMPU6 Amphicarpum purshii Kunth blue maidencane 1/1
AMAM Amphicarpum amphicarpon (Pursh) Nash   0/1
AMLA70 Amphidium lapponicum (Hedw.) Schimp. Lapland amphidium moss 4/0
AMMO70 Amphidium mougeotii (Bruch & Schimp. in B.S.G.) Schimp. Mougeot's amphidium moss 5/0
AMPA6 Amphilophium paniculatum (L.) Kunth liana de cuello 1/0
AMLA4 Amphitecna latifolia (P. Mill.) A.H. Gentry black calabash 3/0
ENLA2 Enallagma latifolia (P. Mill.) Small   1/0
AMEA2 Amsinckia eastwoodiae J.F. Macbr. Eastwood's fiddleneck 4/0
AMGR3 Amsinckia grandiflora (Kleeb. ex Gray) Kleeb. ex Greene largeflowered fiddleneck 7/0
AMLY Amsinckia lycopsoides Lehm. tarweed fiddleneck 3/1
AMMEI2 Amsinckia menziesii (Lehm.) A. Nels. & J.F. Macbr. var. intermedia (Fisch & C.A. Mey.) Ganders common fiddleneck 2/0
AMIN3 Amsinckia intermedia Fisch. & C.A. Mey.   2/0
AMSP3 Amsinckia spectabilis Fisch. & C.A. Mey. woolly breeches 2/0
AMTE3 Amsinckia tessellata Gray bristly fiddleneck 4/0
AMCI Amsonia ciliata Walt. fringed bluestar 1/0
AMCIT2 Amsonia ciliata Walt. var. texana (Gray) Coult. Texas bluestar 1/0
AMRI Amsonia rigida Shuttlw. ex Small stiff bluestar 3/0
AMTA2 Amsonia tabernaemontana Walt. eastern bluestar 6/1
AMTAT Amsonia tabernaemontana Walt. var. tabernaemontana eastern bluestar    
AMAM8 Amsonia amsonia (L.) Britt.   0/1
AMGL3 Amsonia glaberrima Woods.   1/0
AMTO2 Amsonia tomentosa Torr. & Frém. woolly bluestar 3/0
AMTOT Amsonia tomentosa Torr. & Frém. var. tomentosa woolly bluestar 5/0
AMBR3 Amsonia brevifolia Gray   2/0
ANPE13 Anadenanthera peregrina (L.) Speg. cohoba tree 1/0
ANAR Anagallis arvensis L. scarlet pimpernel 11/2
ANMI4 Anagallis minima (L.) Krause chaffweed 1/0
CEMI Centunculus minimus L.   1/1
ANANA Ananas P. Mill. pineapple 2/0
ANCO30 Ananas comosus (L.) Merr. pineapple 3/0
ANMA Anaphalis margaritacea (L.) Benth. western pearly everlasting 5/1
ANOR4 Anastrepta orcadensis (Hook.) Schiffn. 3/0
ANMI7 Anastrophyllum michauxii (F. Weber) H. Buch ex A. Evans 2/0
ANCHU Anchusa L. bugloss 1/0
ANAR16 Anchusa arvensis (L.) Bieb. small bugloss    
LYAR Lycopsis arvensis L.   0/1
ANAZ Anchusa azurea P. Mill. Italian bugloss 1/0
ANIT Anchusa italica Retz.   1/0
ANOF Anchusa officinalis L. common bugloss 3/0
ANIN Andira inermis (W. Wright) Kunth ex DC. cabbagebark tree 2/0
ANRO7 Andreaea rothii Web. & Mohr Roth's andreaea moss 2/0
ANRU7 Andreaea rupestris Hedw. andreaea moss 4/0
ANDRO Andromeda L. bog rosemary 1/0
ANPO Andromeda polifolia L. bog rosemary 2/2
ANAR2 Andropogon arctatus Chapman pinewoods bluestem 0/1
ANBR2 Andropogon brachystachyus Chapman shortspike bluestem 0/1
ANCA4 Andropogon capillipes Nash chalky bluestem 0/1
ANFL Andropogon floridanus Scribn. Florida bluestem 0/1
ANGA3 Andropogon gayanus Kunth bluestem 2/0
ANGE Andropogon gerardii Vitman big bluestem 7/2
ANCH8 Andropogon chrysocomus Nash   0/1
ANFU5 Andropogon furcatus Muhl. ex Willd.   0/1
ANGL2 Andropogon glomeratus (Walt.) B.S.P. bushy bluestem 7/3
ANGR5 Andropogon gracilis Spreng. wire bluestem 0/1
ANSE14 Andropogon sericatus Swallen   0/1
ANGY2 Andropogon gyrans Ashe Elliott's bluestem 1/0
ANGYG Andropogon gyrans Ashe var. gyrans Elliott's bluestem    
ANCA3 Andropogon campyloracheus Nash   0/1
ANEL Andropogon elliottii Chapman   0/2
ANSU Andropogon subtenuis Nash   0/1
ANGYS Andropogon gyrans Ashe var. stenophyllus (Hack.) C. Campbell Elliott's bluestem    
ANPE Andropogon perangustatus Nash   0/1
ANHA Andropogon hallii Hack. sand bluestem 4/2
ANPA8 Andropogon paucipilus Nash   0/1
ANLE Andropogon leucostachyus Kunth matojillo bluestem 1/0
ANLO2 Andropogon longiberbis Hack. hairy bluestem 0/1
ANMO3 Andropogon mohrii (Hack.) Hack. ex Vasey Mohr's bluestem 0/1
ANTE2 Andropogon ternarius Michx. splitbeard bluestem 5/3
ANTEC Andropogon ternarius Michx. var. cabanisii (Hack.) Fern. & Grisc. splitbeard bluestem    
ANCA2 Andropogon cabanisii Hack.   0/2
ANTR Andropogon tracyi Nash Tracy's bluestem 0/1
ANVI2 Andropogon virginicus L. broomsedge bluestem 7/3
ANCH Androsace chamaejasme Wulfen sweetflower rockjasmine 1/0
ANCHC Androsace chamaejasme Wulfen ssp. carinata (Torr.) Hultén sweetflower rockjasmine    
ANCA19 Androsace carinata Torr.   2/0
ANOC2 Androsace occidentalis Pursh western rockjasmine 2/1
ANSE4 Androsace septentrionalis L. pygmyflower rockjasmine 6/0
ANSES5 Androsace septentrionalis L. ssp. subumbellata (A. Nels.) G.T. Robbins pygmyflower rockjasmine 3/0
ANBR4 Androstephium breviflorum S. Wats. pink funnel lily 2/0
ANCO9 Androstephium coeruleum (Scheele) Greene blue funnel lily 3/1
ANCA45 Androstephium caeruleum (Scheele) Greene   4/0
ANSP15 Aneilema spekei C.B. Clarke 1/0
ANEMO Anemone L. anemone 2/0
ANBE Anemone berlandieri Pritz. tenpetal thimbleweed 3/0
ANHE5 Anemone heterophylla Nutt. ex Torr. & Gray (pro syn.)   2/0
ANBL2 Anemone blanda Schott & Kotschy Greek thimbleweed 2/0
ANCA8 Anemone canadensis L. Canadian anemone 4/2
ANCA9 Anemone caroliniana Walt. Carolina anemone 2/1
ANCO40 Anemone coronaria L. lilies-of-the-field 3/0
ANCY Anemone cylindrica Gray candle anemone 1/1
ANDE3 Anemone deltoidea Hook. Columbian windflower 5/0
ANDR Anemone drummondii S. Wats. Drummond's anemone 2/0
ANDRD Anemone drummondii S. Wats. ssp. drummondii Drummond's anemone 7/0
ANHU Anemone hupehensis (hort. ex Lem.) Lem. ex Boynton Japanese thimbleweed 8/0
ANLA Anemone lancifolia Pursh mountain thimbleweed 2/0
ANTR5 Anemone trifolia auct. non L. [misapplied]   0/1
ANLY Anemone lyallii Britt. Little Mountain thimbleweed 2/0
ANMU Anemone multifida Poir. Pacific anemone 19/0
ANMUM3 Anemone multifida Poir. var. multifida Hudson's anemone    
ANHU3 Anemone hudsoniana (DC.) Richards.   0/1
ANNAZ2 Anemone narcissiflora L. var. zephyra (A. Nels.) Dutton & Keener narcissus anemone    
ANZE2 Anemone zephyra A. Nels.   2/0
ANNE4 Anemone nemorosa L. European thimbleweed 1/0
ANORO Anemone oregana Gray var. oregana blue windflower 4/0
ANPA Anemone parviflora Michx. smallflowered anemone 0/1
ANQU Anemone quinquefolia L. wood anemone 7/1
ANRI Anemone richardsonii Hook. yellow thimbleweed 1/1
ANTU Anemone tuberosa Rydb. tuber anemone 3/0
ANVI3 Anemone virginiana L. tall thimbleweed 5/1
ANCA10 Anemopsis californica (Nutt.) Hook. & Arn. yerba mansa 12/1
ANGR2 Anethum graveolens L. dill 1/1
ANMA24 Aneura maxima (Schiffn.) Steph. 1/0
ANPI7 Aneura pinguis (L.) Dumort. 1/0
ANAR3 Angelica arguta Nutt. Lyall's angelica 2/1
ANAT Angelica atropurpurea L. purplestem angelica 2/2
ANBR5 Angelica breweri Gray Brewer's angelica 1/0
ANGR3 Angelica grayi (Coult. & Rose) Coult. & Rose Gray's angelica 1/0
ANHE Angelica hendersonii Coult. & Rose Henderson's angelica 2/0
ANKI Angelica kingii (S. Wats.) Coult. & Rose King's angelica 1/0
ANLU Angelica lucida L. seacoast angelica    
COAC5 Coelopleurum actaeifolium (Michx.) Coult. & Rose   0/1
ANSY2 Angelica sylvestris L. woodland angelica 1/0
ANTR2 Angelica triquinata Michx. filmy angelica 1/0
ANCU2 Angelica curtisii Buckl.   0/1
ANVE Angelica venenosa (Greenway) Fern. hairy angelica 2/0
ANVI7 Angelica villosa (Walt.) B.S.P.   0/1
ANGIO Angiopteris Hoffmann angiopteris fern 3/0
ANPU6 Anisacanthus puberulus (Torr.) Henrickson & Lott dwarf desert honeysuckle 1/0
ANIN3 Anisacanthus insignis Gray   8/0
ANQUW Anisacanthus quadrifidus (Vahl) Nees var. wrightii (Torr.) Henrickson Wright's desert honeysuckle 2/0
ANTH2 Anisacanthus thurberi (Torr.) Gray Thurber's desert honeysuckle 1/0
ANAC Anisocoma acaulis Torr. & Gray scalebud 3/0
ANCH9 Annona cherimola P. Mill. cherimoya 3/0
ANGL4 Annona glabra L. pond apple 3/0
ANMU2 Annona muricata L. soursop 4/0
ANRE Annona reticulata L. custard apple 1/0
ANSE16 Annona senegalensis Pers. wild custard-apple 1/0
ANSQ Annona squamosa L. sugar apple 1/0
ANCR2 Anoda cristata (L.) Schlecht. crested anoda 1/0
ANLA4 Anoda lanceolata Hook. & Arn. lanceleaf anoda    
ANWR7 Anoda wrightii Gray   1/0
ANAE Anoectangium aestivum (Hedw.) Mitt. anoectangium moss 4/0
ANFI4 Anomobryum filiforme (Dicks.) Solms in Rabenh. filiform anomobryum moss 6/0
ANAT4 Anomodon attenuatus (Hedw.) Hüb. anomodon moss 5/0
ANRU5 Anomodon rugelii (C. Müll.) Keissl. Rugel's anomodon moss 4/0
ANVI14 Anomodon viticulosus (Hedw.) Hook. & Tayl. anomodon moss 2/0
ANTEN Antennaria Gaertn. pussytoes 1/0
ANAL4 Antennaria alpina (L.) Gaertn. alpine pussytoes 0/1
ANAR5 Antennaria argentea Benth. silver pussytoes 2/0
ANCO Antennaria corymbosa E. Nels. flat-top pussytoes 4/1
ANDI2 Antennaria dimorpha (Nutt.) Torr. & Gray low pussytoes 9/1
ANHOC Antennaria howellii Greene ssp. canadensis (Greene) Bayer Canadian pussytoes    
ANCA38 Antennaria canadensis Greene   0/1
ANHON Antennaria howellii Greene ssp. neodioica (Greene) Bayer Howell's pussytoes 1/0
ANNE80 Antennaria neodioica Greene   0/1
ANLA3 Antennaria lanata (Hook.) Greene woolly pussytoes 1/0
ANCAL Antennaria carpathica (Wahlenb.) R. Br. var. lanata Hook.   0/1
ANMA5 Antennaria marginata Greene whitemargin pussytoes 3/0
ANME2 Antennaria media Greene Rocky Mountain pussytoes 3/0
ANMI3 Antennaria microphylla Rydb. littleleaf pussytoes 0/1
ANNE Antennaria neglecta Greene field pussytoes 0/1
ANCA27 Antennaria campestris Rydb.   0/1
ANPA9 Antennaria parlinii Fern. Parlin's pussytoes 0/1
ANPA4 Antennaria parvifolia Nutt. small-leaf pussytoes 1/0
ANAP Antennaria aprica Greene   0/1
ANPL Antennaria plantaginifolia (L.) Richards. woman's tobacco 4/1
ANRO2 Antennaria rosea Greene rosy pussytoes 4/0
ANSO Antennaria solitaria Rydb. singlehead pussytoes 1/1
ANNE10 Antenoron neofiliforme (Nakai) Hara jumpseed 1/0
ANRU Anthaenantia rufa (Nutt.) J.A. Schultes purple silkyscale 2/1
ANVI4 Anthaenantia villosa (Michx.) Beauv. green silkyscale 0/1
ANJU Anthelia julacea (L.) Dumort. 4/0
ANJU2 Anthelia juratzkana (Limpr.) Trevis. 4/0
ANAR6 Anthemis arvensis L. corn chamomile 1/1
ANCO2 Anthemis cotula L. stinking chamomile 3/1
ANTI Anthemis tinctoria L. golden chamomile 0/1
ANHE3 Anthephora hermaphrodita (L.) Kuntze oldfield grass 2/0
ANLA7 Antheropeas lanosum (Gray) Rydb. white easterbonnets    
ERLA15 Eriophyllum lanosum (Gray) Gray   2/0
ANWA Antheropeas wallacei (Gray) Rydb. woolly easterbonnets 1/0
ERWA7 Eriophyllum wallacei (Gray) Gray   7/0
ANAG Anthoceros agrestis Paton nom. cons. prop. 2/0
ANTHO Anthoxanthum L. vernalgrass 1/0
ANAR7 Anthoxanthum aristatum Boiss. annual vernalgrass 1/1
ANPU3 Anthoxanthum puelii Lecoq & Lamotte   0/1
ANMOA3 Anthoxanthum monticola (Bigelow) Veldkamp ssp. alpinum (Sw. ex Willd.) Soreng alpine sweetgrass    
HIAL3 Hierochloe alpina (Sw. ex Willd.) Roemer & J.A. Schultes   0/1
SAAL14 Savastana alpina (Sw. ex Willd.) Scribn.   0/1
ANOD Anthoxanthum odoratum L. sweet vernalgrass 3/2
ANCE Anthriscus cerefolium (L.) Hoffmann garden chervil 1/0
CECE3 Cerefolium cerefolium (L.) Schinz & Thellung   0/1
ANTHU Anthurium Schott laceleaf 2/0
ANAN15 Anthurium andraeanum Linden flamingo-lily 1/0
ANCO29 Anthurium cordatum (L.) Schott Organ Mountain laceleaf 2/0
ANSC4 Anthurium scandens (Aubl.) Engl. pearl laceleaf 1/0
ANVU Anthyllis vulneraria L. common kidneyvetch 1/1
ANLE4 Antigonon leptopus Hook. & Arn. coral vine 4/0
ANTIR2 Antirrhinum L. snapdragon 3/0
ANMA3 Antirrhinum majus L. garden snapdragon 1/1
ANCU3 Antitrichia curtipendula (Hedw.) Brid. antitrichia moss 5/0
APIN Apera interrupta (L.) Beauv. dense silkybent 1/1
APSP Apera spica-venti (L.) Beauv. loose silkybent 0/2
APAR2 Aphanes arvensis L. field parsley piert 0/1
APOC Aphanes occidentalis (Nutt.) Rydb.   1/0
APHAN3 Aphanostephus DC. dozedaisy 1/0
APSK Aphanostephus skirrhobasis (DC.) Trel. Arkansas dozedaisy 0/1
APAN Apiastrum angustifolium Nutt. mock parsley 4/0
APAM Apios americana Medik. groundnut 6/1
GLAP Glycine apios L.   0/1
APPR Apios priceana B.L. Robins. traveler's delight 4/0
GLPR Glycine priceana (B.L. Robins.) Britt.   0/1
APGRD Apium graveolens L. var. dulce (P. Mill.) DC. wild celery    
CEGR11 Celeri graveolens (L.) Britt. p.p.   0/1
APHY Aplectrum hyemale (Muhl. ex Willd.) Torr. Adam and Eve 4/1
APMU2 Apluda mutica L. Mauritian grass 2/0
APAN2 Apocynum androsaemifolium L. spreading dogbane 10/1
APPU Apocynum pumilum (Gray) Greene   1/0
APCA Apocynum cannabinum L. Indianhemp 10/2
APCAG Apocynum cannabinum L. var. glaberrimum A. DC.   1/0
APPU2 Apocynum pubescens Mitchell ex R. Br.   0/1
APSI Apocynum sibiricum Jacq.   3/1
APFL Apocynum ×floribundum Greene (pro sp.) [androsaemifolium × cannabinum]    
APME Apocynum medium Greene   1/1
APMI2 Apocynum milleri Britt.   0/1
APUN Apodanthera undulata Gray melon loco 5/0
APPU3 Apometzgeria pubescens (Schrank) Kuwah. 4/0
APDI Aponogeton distachyos L. f. Cape pondweed 4/0
AQUIL Aquilegia L. columbine 12/0
AQBA Aquilegia barnebyi Munz oil shale columbine 1/0
AQBR Aquilegia brevistyla Hook. smallflower columbine 0/1
AQCA Aquilegia canadensis L. red columbine 14/1
AQCH Aquilegia chrysantha Gray golden columbine 4/0
AQCHC Aquilegia chrysantha Gray var. chaplinei (Standl. ex Payson) Lott Chaplin's golden columbine    
AQCH2 Aquilegia chaplinei Standl. ex Payson   5/0
AQCO Aquilegia coerulea James Colorado blue columbine 7/0
AQCA2 Aquilegia caerulea James   10/0
AQCOC Aquilegia coerulea James var. coerulea Colorado blue columbine    
AQCAC2 Aquilegia caerulea James var. caerulea   4/0
AQCOD Aquilegia coerulea James var. daileyae Eastw. Dailey's columbine    
AQCAD Aquilegia caerulea James var. daileyae Eastw.   3/0
AQCOO Aquilegia coerulea James var. ochroleuca Hook. white Colorado columbine    
AQCAO Aquilegia caerulea James var. ochroleuca Hook.   3/0
AQDE Aquilegia desertorum (M.E. Jones) Cockerell ex Heller desert columbine 1/0
AQEL Aquilegia elegantula Greene western red columbine 3/0
AQEX Aquilegia eximia Van Houtte ex Planch. Van Houtte's columbine 4/0
AQFL2 Aquilegia flabellata Siebold & Zucc. fan columbine 6/0
AQFL Aquilegia flavescens S. Wats. yellow columbine 1/0
AQFO Aquilegia formosa Fisch. ex DC. western columbine 11/0
AQFOT Aquilegia formosa Fisch. ex DC. var. truncata (Fisch. & C.A. Mey.) Baker   2/0
AQLO Aquilegia longissima Gray longspur columbine 5/0
AQMI Aquilegia micrantha Eastw. Mancos columbine 3/0
AQPU Aquilegia pubescens Coville Sierra columbine 4/0
AQSA Aquilegia saximontana Rydb. Rocky Mountain blue columbine 1/0
AQSCS Aquilegia scopulorum Tidestrom var. scopulorum Utah columbine 5/0
AQTR Aquilegia triternata Payson Chiricahua Mountain columbine 2/0
AQVU Aquilegia vulgaris L. European columbine 1/1
ARTH Arabidopsis thaliana (L.) Heynh. mouseear cress 1/1
ARABI2 Arabis L. rockcress 2/0
ARAL8 Arabis alpina L. alpine rockcress 0/1
ARBL Arabis blepharophylla Hook. & Arn. rose rockcress 1/0
ARCA Arabis canadensis L. sicklepod 0/1
ARDI Arabis dispar M.E. Jones pinyon rockcress 3/0
ARDR Arabis drummondii Gray Drummond's rockcress 1/2
ARBR7 Arabis brachycarpa (Torr. & Gray) Britt.   0/1
BODR Boechera drummondii (Gray) A.& D. Löve   3/0
ARFE Arabis fendleri (S. Wats.) Greene Fendler's rockcress 1/0
ARFEF Arabis fendleri (S. Wats.) Greene var. fendleri Fendler's rockcress    
BOFE Boechera fendleri (S. Wats.) W.A. Weber   5/0
ARFUF2 Arabis furcata S. Wats. var. furcata Columbia Gorge rockcress 2/0
ARGL Arabis glabra (L.) Bernh. tower rockcress 0/1
ARHI Arabis hirsuta (L.) Scop. hairy rockcress 0/1
ARHO2 Arabis holboellii Hornem. Holboell's rockcress 0/1
ARHOC Arabis holboellii Hornem. var. collinsii (Fern.) Rollins Collins' rockcress    
ARCO17 Arabis collinsii Fern.   0/1
ARIN Arabis inyoensis Rollins Inyo rockcress 2/0
ARJO Arabis johnstonii Munz Johnston's rockcress 4/0
ARLA Arabis laevigata (Muhl. ex Willd.) Poir. smooth rockcress 2/1
ARLYL Arabis lyallii S. Wats. var. lyallii Lyall's rockcress 2/0
ARLY2 Arabis lyrata L. lyrate rockcress 2/1
ARPA Arabis parishii S. Wats. dwarf rockcress 6/0
ARPA2 Arabis patens Sullivant spreading rockcress 0/1
ARPE2 Arabis perennans S. Wats. perennial rockcress 3/0
BOPE6 Boechera perennans (S. Wats.) W.A. Weber   10/0
ARPLH2 Arabis platysperma Gray var. howellii (S. Wats.) Jepson Howell's pioneer rockcress 2/0
ARPU Arabis puberula Nutt. silver rockcress 2/0
ARPUP2 Arabis pulchra M.E. Jones ex S. Wats. var. pulchra beautiful rockcress 1/0
ARSE Arabis selbyi Rydb. Selby's rockcress    
BOSE3 Boechera selbyi (Rydb.) W.A. Weber   4/0
ARSH2 Arabis shortii (Fern.) Gleason Short's rockcress    
ARDE8 Arabis dentata (Torr.) Torr. & Gray   0/1
ARSP Arabis sparsiflora Nutt. sicklepod rockcress 2/0
ARSPS Arabis sparsiflora Nutt. var. subvillosa (S. Wats.) Rollins hairystem rockcress 1/0
ARHA10 Arachis hagenbeckii Harms rhizoma peanut 1/0
ARGLH4 Arachis glabrata Benth. var. hagenbeckii (Harms) F.J. Herm.   1/0
ARHY Arachis hypogaea L. peanut 2/0
ARMO9 Arachis monticola Krapov. & Rigoni peanut 1/0
ARCA2 Aralia californica S. Wats. California spikenard 3/0
AREL8 Aralia elata (Miq.) Seem. Japanese angelica tree 1/0
ARHI2 Aralia hispida Vent. bristly sarsaparilla 0/1
ARNU2 Aralia nudicaulis L. wild sarsaparilla 4/2
ARRA Aralia racemosa L. American spikenard 4/1
ARSP2 Aralia spinosa L. devil's walkingstick 15/2
ARAUC2 Araucaria Juss. araucaria 1/0
ARAR23 Araucaria araucana (Molina) K. Koch monkeypuzzle tree    
ARIM4 Araucaria imbricata Pav.   1/0
ARCO32 Araucaria columnaris (Forster) Hook. New Caledonia pine 3/0
ARHE12 Araucaria heterophylla (Salisb.) Franco Norfolk Island pine 4/1
ARSE8 Araujia sericifera Brot. white bladderflower 1/0
ARBUT Arbutus L. madrone 1/1
ARAR2 Arbutus arizonica (Gray) Sarg. Arizona madrone 4/0
ARME Arbutus menziesii Pursh Pacific madrone 15/1
ARUN4 Arbutus unedo L. strawberry tree 5/0
ARXA80 Arbutus xalapensis Kunth Texas madrone 7/0
ARTE Arbutus texana Buckl.   2/0
ARDI3 Arceuthobium divaricatum Engelm. pinyon dwarf mistletoe 1/0
ARDO Arceuthobium douglasii Engelm. Douglas fir dwarf mistletoe 1/0
ARLI12 Arceuthobium littorum Hawksworth, Wiens & Nickrent coastal dwarf mistletoe 1/0
ARPU3 Arceuthobium pusillum Peck eastern dwarf mistletoe 1/0
RAPU4 Razoumofskya pusilla (Peck) Kuntze   0/1
ARVA Arceuthobium vaginatum (Willd.) J. Presl pineland dwarf mistletoe 4/0
ARAL Archontophoenix alexandrae (F. Muell.) H. Wendl. & Drude Alexandra palm 1/0
ARLA2 Arctagrostis latifolia (R. Br.) Griseb. wideleaf polargrass 1/1
ARCTI Arctium L. burdock 1/0
ARLA3 Arctium lappa L. greater burdock 2/1
ARMI2 Arctium minus Bernh. lesser burdock 4/1
ARTO Arctium tomentosum P. Mill. woolly burdock 0/1
ARHU3 Arctomecon humilis Coville common bearpoppy 3/0
ARME2 Arctomecon merriamii Coville desert bearpoppy 6/0
ARFU2 Arctophila fulva (Trin.) Rupr. ex Anderss. pendantgrass 1/0
ARCTO3 Arctostaphylos Adans. manzanita 2/1
ARALA7 Arctostaphylos alpina (L.) Spreng. var. alpina alpine bearberry    
MAAL8 Mairania alpina (L.) Desv.   0/1
ARAN2 Arctostaphylos andersonii Gray Santa Cruz manzanita 2/0
ARCA21 Arctostaphylos catalinae P.V. Wells Santa Catalina Island manzanita 2/0
ARCO23 Arctostaphylos ×coloradensis Rollins (pro sp.) [patula × uva-ursi] 4/0
ARCO3 Arctostaphylos columbiana Piper hairy manzanita 1/0
ARCO13 Arctostaphylos confertiflora Eastw. Santa Rosa Island manzanita 1/0
ARCR6 Arctostaphylos cruzensis J.B. Roof La Cruz manzanita 2/0
ARED Arctostaphylos edmundsii J.T. Howell Little Sur manzanita 4/0
ARGLC4 Arctostaphylos glandulosa Eastw. ssp. crassifolia (Jepson) P.V. Wells Del Mar manzanita 1/0
ARGLG4 Arctostaphylos glandulosa Eastw. ssp. glaucomollis P.V. Wells Eastwood's manzanita 2/0
ARGL4 Arctostaphylos glauca Lindl. bigberry manzanita 4/0
ARHOF Arctostaphylos hookeri G. Don ssp. franciscana (Eastw.) Munz Franciscan manzanita 2/0
ARHOR2 Arctostaphylos hookeri G. Don ssp. ravenii P.V. Wells Presidio manzanita 4/0
ARIN2 Arctostaphylos insularis Greene ex Parry island manzanita    
ARINP Arctostaphylos insularis Greene ex Parry var. pubescens Eastw.   2/0
ARLU4 Arctostaphylos luciana P.V. Wells Santa Lucia manzanita 1/0
ARMA Arctostaphylos manzanita Parry whiteleaf manzanita 4/0
ARMAL Arctostaphylos manzanita Parry ssp. laevigata (Eastw.) Munz Contra Costa manzanita    
ARPUL2 Arctostaphylos pungens Kunth ssp. laevigata (Eastw.) J.B. Roof   4/0
ARME7 Arctostaphylos ×media Greene (pro sp.) [columbiana × uva-ursi] 1/0
ARMO2 Arctostaphylos morroensis Wies. & Schreib. Morro manzanita 6/0
ARNE Arctostaphylos nevadensis Gray pinemat manzanita 5/0
AROB Arctostaphylos obispoensis Eastw. serpentine manzanita 3/0
ARPA3 Arctostaphylos pajaroensis (J.E. Adams ex McMinn) J.E. Adams Pajaro manzanita 3/0
ARPA21 Arctostaphylos pallida Eastw. Alameda manzanita 5/0
ARANP Arctostaphylos andersonii Gray var. pallida (Eastw.) J.E. Adams ex McMinn   2/0
ARPA6 Arctostaphylos patula Greene greenleaf manzanita 9/1
ARPE9 Arctostaphylos peninsularis P.V. Wells Peninsular manzanita 3/0
ARPR Arctostaphylos pringlei Parry Pringle manzanita 2/0
ARPRD2 Arctostaphylos pringlei Parry ssp. drupacea (Parry) P.V. Wells pinkbracted manzanita 2/0
ARPU4 Arctostaphylos pumila Nutt. sandmat manzanita 1/0
ARPU5 Arctostaphylos pungens Kunth pointleaf manzanita 6/0
ARPU10 Arctostaphylos purissima P.V. Wells La Purissima manzanita 2/0
ARRA7 Arctostaphylos rainbowensis J.E. Keeley & A. Massihi Rainbow manzanita 1/0
ARRE7 Arctostaphylos regismontana Eastw. Kings Mountain manzanita 2/0
ARRU2 Arctostaphylos rudis Jepson & Wies. ex Jepson shagbark manzanita 6/0
ARSTR Arctostaphylos stanfordiana Parry ssp. raichei W. Knight Raiche's manzanita 1/0
ARTOI Arctostaphylos tomentosa (Pursh) Lindl. ssp. insulicola P.V. Wells woollyleaf manzanita 4/0
ARUV Arctostaphylos uva-ursi (L.) Spreng. kinnikinnick 13/0
UVUV Uva-Ursi uva-ursi (L.) Britt.   0/1
ARVI7 Arctostaphylos viridissima (Eastw.) McMinn whitehair manzanita 2/0
ARVI4 Arctostaphylos viscida Parry sticky whiteleaf manzanita 1/0
ARST2 Arctotis stoechadifolia Berg. African daisy 1/0
ARCR80 Ardisia crenata Sims hen's eyes 1/0
ARJA4 Ardisia japonica (Thunb.) Blume marlberry 1/0
ARLU3 Ardisia luquillensis (Britt.) Alain mountain marlberry 2/0
AROB2 Ardisia obovata Desv. ex Hamilton Guadeloupe marlberry 1/0
ARSO Ardisia solanacea Roxb. China-shrub 1/0
ARENA Arenaria L. sandwort 2/0
ARAC2 Arenaria aculeata S. Wats. prickly sandwort 3/0
ARCA7 Arenaria capillaris Poir. slender mountain sandwort 2/0
ARCO5 Arenaria congesta Nutt. ballhead sandwort 3/0
ARCOC2 Arenaria congesta Nutt. var. charlestonensis Maguire Charleston sandwort 3/0
AREAA Arenaria eastwoodiae Rydb. var. adenophora Kearney & Peebles Eastwood's sandwort 3/0
ARFE3 Arenaria fendleri Gray Fendler's sandwort 4/1
ARFEF3 Arenaria fendleri Gray var. fendleri Fendler's sandwort    
ERFE3 Eremogone fendleri (Gray) S. Ikonnikov   2/0
ARFR Arenaria franklinii Douglas ex Hook. Franklin's sandwort 2/0
ARHO4 Arenaria hookeri Nutt. Hooker's sandwort 1/1
ARKI Arenaria kingii (S. Wats.) M.E. Jones King's sandwort 2/0
ARKIC Arenaria kingii (S. Wats.) M.E. Jones ssp. compacta (Coville) Maguire King's compact sandwort 3/0
ARKIK Arenaria kingii (S. Wats.) M.E. Jones ssp. kingii King's sandwort 2/0
ARLAL3 Arenaria lanuginosa (Michx.) Rohrb. ssp. lanuginosa var. lanuginosa spreading sandwort    
SPLA8 Spergulastrum lanuginosum Michx.   2/0
ARLAS Arenaria lanuginosa (Michx.) Rohrb. ssp. saxosa (Gray) Maguire spreading sandwort    
ARCO14 Arenaria confusa Rydb.   2/0
ARMA3 Arenaria macradenia S. Wats. Mojave sandwort 1/0
ARSE2 Arenaria serpyllifolia L. thymeleaf sandwort 6/1
ARLE3 Arenaria leptoclados (Reichenb.) Guss.   0/1
ARUR Arenaria ursina B.L. Robins. Bear Valley sandwort 2/0
ARPI6 Arenga pinnata (Wurmb) Merr. sugar palm 1/0
ARBU Arethusa bulbosa L. dragon's mouth 2/1
ARGEM Argemone L. pricklypoppy 1/0
ARAL3 Argemone albiflora Hornem. bluestem pricklypoppy 7/0
ARALA2 Argemone albiflora Hornem. ssp. albiflora bluestem pricklypoppy 1/0
ARAL9 Argemone alba Lestib. f.   1/1
ARALT Argemone albiflora Hornem. ssp. texana G.B. Ownbey bluestem pricklypoppy 1/0
ARCH2 Argemone chisosensis G.B. Ownbey Chisos Mountain pricklypoppy 1/0
ARCO6 Argemone corymbosa Greene Mojave pricklypoppy 2/0
ARME4 Argemone mexicana L. Mexican pricklypoppy 5/1
ARMU Argemone munita Dur. & Hilg. flatbud pricklypoppy 14/0
ARMUR Argemone munita Dur. & Hilg. ssp. rotundata (Rydb.) G.B. Ownbey flatbud pricklypoppy 5/0
ARPL3 Argemone pleiacantha Greene southwestern pricklypoppy 6/0
ARPLP Argemone pleiacantha Greene ssp. pinnatisecta G.B. Ownbey southwestern pricklypoppy 5/0
ARPO2 Argemone polyanthemos (Fedde) G.B. Ownbey crested pricklypoppy 16/0
ARIN7 Argemone intermedia auct. non Sweet [misapplied]   2/1
ARPL2 Argemone platyceras auct. non Link & Otto [misapplied]   2/0
ARAN7 Argentina anserina (L.) Rydb. silverweed cinquefoil 1/2
POAN5 Potentilla anserina L.   3/0
ARGN2 Argusia gnaphalodes (L.) Heine sea rosemary 9/0
ARGR20 Argyranthemum gracilis Webb ex Sch. Bip. Tenerife white marguerite 1/0
ARNE4 Argyreia nervosa (Burm. f.) Bojer elephant creeper 1/0
ARDE5 Argyrochosma dealbata (Pursh) Windham powdery false cloak fern 1/0
NODE Notholaena dealbata (Pursh) Kunze   0/1
ARFE5 Argyrochosma fendleri (Kunze) Windham Fendler's false cloak fern 2/0
PEFE4 Pellaea fendleri (Kunze) Prantl   1/0
ARIN11 Argyrochosma incana (K. Presl) Windham hairy false cloak fern 1/0
ARMI6 Argyrochosma microphylla (Mett. ex Kuhn) Windham small-leaf false cloak fern 3/0
ARGYR Argyroxiphium DC. silversword 5/0
ARSA5 Argyroxiphium sandwicense DC. Hawai'i silversword 5/0
ARSAS Argyroxiphium sandwicense DC. ssp. sandwicense Hawai'i silversword 1/0
ARFA Argythamnia fasciculata (Vahl ex A. Juss.) Muell.-Arg. broom silverbush 2/0
ARHUH Argythamnia humilis (Engelm. & Gray) Muell.-Arg. var. humilis low silverbush    
DIHU Ditaxis humilis (Engelm. & Gray) Pax   0/1
ARMEM Argythamnia mercurialina (Nutt.) Muell.-Arg. var. mercurialina tall silverbush    
DIME3 Ditaxis mercurialina (Nutt.) Coult.   0/1
ARST7 Argythamnia stahlii Urban bluntleaf silverbush 1/0
ARFI Ariocarpus fissuratus (Engelm.) K. Schum. chautle livingrock 1/0
ARISA Arisaema Mart. Jack in the pulpit 1/0
ARDR3 Arisaema dracontium (L.) Schott green dragon 7/2
ARTO7 Arisaema tortuosum (Wallich) Schott arisaema 1/0
ARTR Arisaema triphyllum (L.) Schott Jack in the pulpit 13/1
ARTRP Arisaema triphyllum (L.) Schott ssp. pusillum (Peck) Huttleston Jack in the pulpit    
ARPU17 Arisaema pusillum (Peck) Nash   0/1
ARTRQ Arisaema triphyllum (L.) Schott ssp. quinatum (Buckl.) Huttleston Jack in the pulpit    
ARQU Arisaema quinatum (Buckl.) Schott   1/0
ARTRS Arisaema triphyllum (L.) Schott ssp. stewardsonii (Britt.) Huttleston Jack in the pulpit    
ARST9 Arisaema stewardsonii Britt.   0/1
ARTRT3 Arisaema triphyllum (L.) Schott ssp. triphyllum Jack in the pulpit 0/1
ARAD Aristida adscensionis L. sixweeks threeawn 2/1
ARFA4 Aristida fasciculata Torr.   0/1
ARAR6 Aristida arizonica Vasey Arizona threeawn 0/1
ARBA2 Aristida basiramea Engelm. ex Vasey forked threeawn 0/2
ARBE7 Aristida beyrichiana Trin. & Rupr. Beyrich threeawn 2/0
ARCA9 Aristida californica Thurb. ex S. Wats. California threeawn 0/1
ARCAG Aristida californica Thurb. ex S. Wats. var. glabrata Vasey Santa Rita threeawn    
ARGL6 Aristida glabrata (Vasey) A.S. Hitchc.   0/1
ARCO7 Aristida condensata Chapman piedmont threeawn 0/1
ARDE3 Aristida desmantha Trin. & Rupr. curly threeawn 0/2
ARDI4 Aristida dichotoma Michx. churchmouse threeawn 0/2
ARDIC Aristida dichotoma Michx. var. curtissii Gray ex S. Wats. & Coult. Curtis' threeawn    
ARCU3 Aristida curtissii (Gray ex S. Wats. & Coult.) Nash   0/2
ARDI5 Aristida divaricata Humb. & Bonpl. ex Willd. poverty threeawn 0/2
ARFL Aristida floridana (Chapman) Vasey Key West threeawn 0/1
ARGY Aristida gyrans Chapman corkscrew threeawn 0/1
ARHA3 Aristida havardii Vasey Havard's threeawn    
ARBA Aristida barbata Fourn.   0/1
ARLA6 Aristida lanosa Muhl. ex Ell. woollysheath threeawn 2/2
ARLO16 Aristida longespica Poir. slimspike threeawn    
ARLO2 Aristida longispica Poir. [orthographic variant]   1/1
ARLOG6 Aristida longespica Poir. var. geniculata (Raf.) Fern. slimspike threeawn    
ARIN8 Aristida intermedia Scribn. & Ball   0/2
ARLOG Aristida longispica Poir. var. geniculata (Raf.) Fern. [orthographic variant]   1/0
ARLOL3 Aristida longespica Poir. var. longespica slimspike threeawn    
ARGR13 Aristida gracilis Ell.   0/1
ARMO3 Aristida mohrii Nash Mohr's threeawn 0/1
AROL Aristida oligantha Michx. prairie threeawn 1/2
ARPA26 Aristida palustris (Chapman) Vasey longleaf threeawn    
ARAF2 Aristida affinis auct. non (J.A. Schultes) Kunth [misapplied]   0/1
ARPA9 Aristida pansa Woot. & Standl. Wooton's threeawn 0/1
ARPA11 Aristida patula Chapman ex Nash tall threeawn 0/1
ARPU8 Aristida purpurascens Poir. arrowfeather threeawn 4/2
ARPUT Aristida purpurascens Poir. var. tenuispica (A.S. Hitchc.) Allred arrowfeather threeawn    
ARTE2 Aristida tenuispica A.S. Hitchc.   0/1
ARPUV Aristida purpurascens Poir. var. virgata (Trin.) Allred arrowfeather threeawn    
ARVI5 Aristida virgata Trin.   0/1
ARPU9 Aristida purpurea Nutt. purple threeawn 3/1
ARPUF Aristida purpurea Nutt. var. fendleriana (Steud.) Vasey Fendler's threeawn    
ARFE4 Aristida fendleriana Steud.   0/2
ARPUL Aristida purpurea Nutt. var. longiseta (Steud.) Vasey Fendler threeawn    
ARLO3 Aristida longiseta Steud.   0/2
ARPUN Aristida purpurea Nutt. var. nealleyi (Vasey) Allred blue threeawn    
ARGL7 Aristida glauca (Nees) Walp.   0/1
ARPUP5 Aristida purpurea Nutt. var. parishii (A.S. Hitchc.) Allred Parish's threeawn    
ARPA24 Aristida parishii A.S. Hitchc.   0/1
ARPUP6 Aristida purpurea Nutt. var. purpurea purple threeawn    
ARRO3 Aristida roemeriana Scheele   0/1
ARPUW Aristida purpurea Nutt. var. wrightii (Nash) Allred Wright's threeawn    
ARWR Aristida wrightii Nash   4/2
ARRA2 Aristida ramosissima Engelm. ex Gray s-curve threeawn 0/2
ARRH Aristida rhizomophora Swallen Florida threeawn 0/1
ARSCO Aristida schiedeana Trin. & Rupr. var. orcuttiana (Vasey) Allred & Valdés-Reyna Orcutt's threeawn    
AROR2 Aristida orcuttiana Vasey   0/1
ARSI3 Aristida simpliciflora Chapman southern threeawn 0/1
ARSP3 Aristida spiciformis Ell. bottlebrush threeawn 0/1
ARST5 Aristida stricta Michx. pineland threeawn 1/1
ARTE3 Aristida ternipes Cav. spidergrass 0/1
ARTEG Aristida ternipes Cav. var. gentilis (Henr.) Allred spidergrass    
ARHA Aristida hamulosa Henr.   0/1
ARTU Aristida tuberculosa Nutt. seaside threeawn 1/2
ARCA10 Aristolochia californica Torr. California dutchman's pipe 4/0
ARCL Aristolochia clematitis L. birthwort 1/1
AREL10 Aristolochia elegans Mast. elegant dutchman's pipe 1/0
ARGR2 Aristolochia grandiflora Sw. pelicanflower 3/0
ARMA7 Aristolochia macrophylla Lam. pipevine 3/1
AROD Aristolochia odoratissima L. fragrant dutchman's pipe 1/0
ARRE3 Aristolochia reticulata Jacq. Texas dutchman's pipe 1/0
ARRI3 Aristolochia ringens Vahl gaping dutchman's pipe 2/0
ARSE3 Aristolochia serpentaria L. Virginia snakeroot 1/1
ARTO3 Aristolochia tomentosa Sims woolly dutchman's pipe 2/2
ARMA6 Armeria maritima (P. Mill.) Willd. thrift seapink 3/0
ARMAC2 Armeria maritima (P. Mill.) Willd. ssp. californica (Boiss.) Porsild California seapink 2/0
ARMAS Armeria maritima (P. Mill.) Willd. ssp. sibirica (Turcz. ex Boiss.) Nyman Siberian sea thrift    
ARVU3 Armeria vulgaris Willd. p.p.   0/1
ARRU4 Armoracia rusticana P.G. Gaertn., B. Mey. & Scherb. horseradish    
ARAR16 Armoracia armoracia (L.) Britt.   0/1
ARAC3 Arnica acaulis (Walt.) B.S.P. common leopardbane 0/1
ARAM2 Arnica amplexicaulis Nutt. clasping arnica 3/1
ARAN5 Arnica angustifolia Vahl narrowleaf arnica 2/0
ARCH3 Arnica chamissonis Less. Chamisso arnica 2/1
ARCHA2 Arnica chamissonis Less. ssp. foliosa (Nutt.) Maguire var. andina (Nutt.) Ediger & T.M. Barkl. Chamisso arnica    
ARFO2 Arnica foliosa Nutt.   1/0
ARCO9 Arnica cordifolia Hook. heartleaf arnica 4/1
ARDE11 Arnica dealbata (Gray) B.G. Baldwin mock leopardbane    
WHDE Whitneya dealbata Gray   2/0
ARDI6 Arnica discoidea Benth. rayless arnica 2/0
ARDI7 Arnica ×diversifolia Greene (pro sp.) [amplexicaulis or mollis × cordifolia or latifolia] rayless arnica 1/1
ARGR14 Arnica gracilis Rydb. smallhead arnica 1/0
ARLA8 Arnica latifolia Bong. broadleaf arnica 4/1
ARLOL Arnica lonchophylla Greene ssp. lonchophylla longleaf arnica    
ARCH7 Arnica chionopappa Fern.   0/1
ARLO6 Arnica longifolia D.C. Eat. spearleaf arnica 3/1
ARMO4 Arnica mollis Hook. hairy arnica 6/2
ARMO8 Arnica montana L. mountain arnica 1/0
ARNE3 Arnica nevadensis Gray Nevada arnica 2/0
ARPA13 Arnica parryi Gray Parry's arnica 2/0
ARPAP3 Arnica parryi A. Gray ssp. parryi Parry's arnica 2/0
ARPAS2 Arnica parryi Gray ssp. sonnei (Greene) Maguire Sonne's arnica 2/0
ARAT Arnoglossum atriplicifolium (L.) H.E. Robins. pale Indian plaintain    
CAAT Cacalia atriplicifolia L.   2/0
MEAT Mesadenia atriplicifolia (L.) Raf.   0/1
AROV Arnoglossum ovatum (Walt.) H.E. Robins. ovateleaf cacalia 1/0
ARPL4 Arnoglossum plantagineum Raf. groovestem Indian plaintain 3/1
METU3 Mesadenia tuberosa (Nutt.) Britt.   0/1
ARRE6 Arnoglossum reniforme (Hook.) H.E. Robins. great Indian plaintain    
CAMU23 Cacalia muehlenbergii (Schultz-Bip.) Fern.   1/0
MERE5 Mesadenia reniformis Raf.   0/1
ARMI3 Arnoseris minima (L.) Schweig. & Koerte lamb succory 0/1
ARPA38 Arrabidaea patellifera (Schltdl.) Sandwith 3/0
ARRHE Arrhenatherum Beauv. oatgrass 1/0
AREL3 Arrhenatherum elatius (L.) Beauv. ex J.& K. Presl tall oatgrass 5/2
ARELB Arrhenatherum elatius (L.) Beauv. ex J.& K. Presl var. bulbosum (Willd.) Spenner tall oatgrass 0/1
ARTEM Artemisia L. sagebrush 2/0
ARAB2 Artemisia abrotanum L. southernwood 0/1
ARAB3 Artemisia absinthium L. absinthium 5/1
ARAN3 Artemisia annua L. sweet sagewort 1/1
ARAR8 Artemisia arbuscula Nutt. little sagebrush 1/1
ARARA Artemisia arbuscula Nutt. ssp. arbuscula little sagebrush 3/0
ARARL3 Artemisia arbuscula Nutt. ssp. longicaulis Winward & McArthur little sagebrush 2/0
ARBI2 Artemisia biennis Willd. biennial wormwood 0/1
ARBI3 Artemisia bigelovii Gray Bigelow sage 5/1
ARCA11 Artemisia californica Less. coastal sagebrush 5/0
ARCAB4 Artemisia campestris L. ssp. borealis (Pallas) Hall & Clements var. borealis (Pallas) M.E. Peck field sagewort    
ARBO4 Artemisia borealis Pallas   0/1
ARCA23 Artemisia canadensis Michx.   0/1
ARCAC Artemisia campestris L. ssp. caudata (Michx.) Hall & Clements field sagewort    
ARCA24 Artemisia caudata Michx.   0/1
ARCA13 Artemisia cana Pursh silver sagebrush 4/1
ARCA14 Artemisia carruthii Wood ex Carruth. Carruth's sagewort    
ARKA4 Artemisia kansana Britt.   0/1
ARDO3 Artemisia douglasiana Bess. Douglas' sagewort 2/0
ARDR4 Artemisia dracunculus L. tarragon 4/0
ARDR5 Artemisia dracunculoides Pursh   1/1
ARGL12 Artemisia glauca Pallas ex Willd.   0/1
OLDR Oligosporus dracunculus (L.) Poljakov   4/0
ARFI2 Artemisia filifolia Torr. sand sagebrush 6/1
ARFR3 Artemisia franserioides Greene ragweed sagebrush 3/0
ARFR4 Artemisia frigida Willd. prairie sagewort 9/1
ARFUF Artemisia furcata M. Bieb. var. furcata forked wormwood 1/0
ARLO7 Artemisia longifolia Nutt. longleaf wormwood 0/1
ARLU Artemisia ludoviciana Nutt. white sagebrush 3/1
ARLUL2 Artemisia ludoviciana Nutt. ssp. ludoviciana white sagebrush    
ARGN Artemisia gnaphalodes Nutt.   0/1
ARLUM2 Artemisia ludoviciana Nutt. ssp. mexicana (Willd. ex Spreng.) Keck white sagebrush    
ARME9 Artemisia mexicana Willd. ex Spreng.   0/1
ARMA27 Artemisia maritima L. sea wormwood 2/0
ARNO4 Artemisia nova A. Nels. black sagebrush 3/0
SENO Seriphidium novum (A. Nels.) W.A. Weber   3/0
ARPA16 Artemisia papposa Blake & Cronq. Owyhee sage 4/0
ARPO4 Artemisia pontica L. Roman wormwood 0/1
ARPY3 Artemisia pycnocephala (Less.) DC. beach wormwood 1/0
ARPY2 Artemisia pygmaea Gray pygmy sagebrush 3/0
ARRO4 Artemisia rothrockii Gray timberline sagebrush 2/0
ARSC Artemisia scopulorum Gray alpine sagebrush 1/0
ARSE4 Artemisia serrata Nutt. sawtooth wormwood 0/1
ARST6 Artemisia stelleriana Bess. oldwoman 1/1
ARTR2 Artemisia tridentata Nutt. big sagebrush 9/1
ARTRT Artemisia tridentata Nutt. ssp. tridentata basin big sagebrush 3/0
SETR4 Seriphidium tridentatum (Nutt.) W.A. Weber   2/0
ARTRV Artemisia tridentata Nutt. ssp. vaseyana (Rydb.) Beetle mountain big sagebrush 3/0
ARTRW8 Artemisia tridentata Nutt. ssp. wyomingensis Beetle & Young Wyoming big sagebrush 2/0
ARVU Artemisia vulgaris L. common wormwood 1/1
ARGL17 Arthonia glebosa Tuck. dot lichen 2/0
ARHI3 Arthraxon hispidus (Thunb.) Makino small carpgrass 2/1
ARHIC2 Arthraxon hispidus (Thunb.) Makino var. cryptatherus (Hack.) Honda   1/1
ARUM2 Arum L. arum 1/0
ARIT Arum italicum Mill. Italian lords and ladies 1/0
ARMA29 Arum maculatum L. cuckoo pint 2/0
ARDI8 Aruncus dioicus (Walt.) Fern. bride's feathers 3/0
ARDIA Aruncus dioicus (Walter) Fernald var. acuminatus (Rydb.) Rydb. ex H. Hara bride's feathers 1/0
ARDIV Aruncus dioicus (Walt.) Fern. var. vulgaris (Maxim.) Hara bride's feathers    
ARAR14 Aruncus aruncus (L.) Karst.   1/1
ARSY2 Aruncus sylvester Kostel. ex Maxim.   1/0
ARVU4 Aruncus vulgaris (Maxim.) Raf. ex Hara   1/0
SPAR4 Spiraea aruncus L.   1/0
ARGR6 Arundina graminifolia (D. Don) Hochr. bamboo orchid 2/0
ARBA3 Arundina bambusifolia (Roxb.) Lindl.   3/0
ARAM6 Arundinaria amabilis McClure Tonkin cane 1/0
ARGI Arundinaria gigantea (Walt.) Muhl. giant cane 2/3
ARGIT8 Arundinaria gigantea (Walt.) Muhl. ssp. tecta (Walt.) McClure switchcane    
ARTE4 Arundinaria tecta (Walt.) Muhl.   0/2
ARUND3 Arundinella Raddi rabo de gato 1/0
ARUND4 Arundo L. giant reed 1/0
ARDO4 Arundo donax L. giant reed 8/1
ASCA Asarum canadense L. Canadian wildginger 9/1
ASAC7 Asarum acuminatum (Ashe) Bickn.   0/1
ASRE10 Asarum reflexum Bickn.   0/1
ASCA2 Asarum caudatum Lindl. British Columbia wildginger 3/0
ASHA Asarum hartwegii S. Wats. Hartweg's wildginger 2/0
ASCLE Asclepias L. milkweed 13/0
ASAL Asclepias albicans S. Wats. whitestem milkweed 1/0
ASAM Asclepias amplexicaulis Sm. clasping milkweed 5/1
ASAR Asclepias arenaria Torr. sand milkweed 0/1
ASAS Asclepias asperula (Dcne.) Woods. spider milkweed 1/0
ASASA Asclepias asperula (Dcne.) Woods. ssp. asperula spider milkweed 2/0
ASASC Asclepias asperula (Dcne.) Woods. ssp. capricornu (Woods.) Woods. antelopehorns 15/0
ASDE16 Asclepias decumbens (Nutt.) Dcne.   0/1
ASDE15 Asclepiodora decumbens (Nutt.) Gray   0/1
ASBR Asclepias brachystephana Engelm. ex Torr. bract milkweed 0/1
ASCA3 Asclepias californica Greene California milkweed 5/0
ASCO Asclepias cordifolia (Benth.) Jepson heartleaf milkweed 2/0
ASCR Asclepias cryptoceras S. Wats. pallid milkweed 2/0
ASCU Asclepias curassavica L. bloodflower 6/0
ASEN Asclepias engelmanniana Woods. Engelmann's milkweed    
ACAU5 Acerates auriculata Engelm. ex Torr.   0/1
ASER Asclepias eriocarpa Benth. woollypod milkweed 3/0
ASER2 Asclepias erosa Torr. desert milkweed 1/0
ASEX Asclepias exaltata L. poke milkweed 1/1
ASFA Asclepias fascicularis Dcne. Mexican whorled milkweed 2/0
ASME11 Asclepias mexicana auct. non Cav. [misapplied]   1/0
ASHI Asclepias hirtella (Pennell) Woods. green milkweed 1/0
ASHU3 Asclepias humistrata Walt. pinewoods milkweed 1/0
ASIN Asclepias incarnata L. swamp milkweed 15/2
ASINP2 Asclepias incarnata L. ssp. pulchra (Ehrh. ex Willd.) Woods. swamp milkweed    
ASPU13 Asclepias pulchra Ehrh. ex Willd.   0/1
ASIN14 Asclepias involucrata Engelm. ex Torr. dwarf milkweed 2/0
ASLA2 Asclepias lanceolata Walt. fewflower milkweed 2/0
ASLAP3 Asclepias lanceolata Walt. var. paupercula (Michx.) Fern.   0/1
ASLA3 Asclepias lanuginosa Nutt. sidecluster milkweed    
ACLA4 Acerates lanuginosa (Nutt.) Dcne.   0/1
ASLA4 Asclepias latifolia (Torr.) Raf. broadleaf milkweed 1/1
ASLO Asclepias longifolia Michx. longleaf milkweed 1/0
ACFL4 Acerates floridana (Lam.) A.S. Hitchc.   0/1
ASME Asclepias meadii Torr. ex Gray Mead's milkweed 0/1
ASNU Asclepias nummularia Torr. tufted milkweed 2/0
ASOB Asclepias obovata Ell. pineland milkweed 3/0
ASOV Asclepias ovalifolia Dcne. oval-leaf milkweed 0/1
ASPE Asclepias perennis Walt. aquatic milkweed 5/1
ASPH2 Asclepias physocarpa (E. Mey.) Schlechter balloonplant 1/0
ASPU Asclepias pumila (Gray) Vail plains milkweed 0/1
ASPU2 Asclepias purpurascens L. purple milkweed 3/2
ASQU Asclepias quadrifolia Jacq. fourleaf milkweed 4/1
ASRU Asclepias rubra L. red milkweed 4/1
ASRU6 Asclepias rusbyi (Vail) Woods. Rusby's milkweed    
ASENR Asclepias engelmanniana Woods. var. rusbyi (Vail) Kearney   2/0
ASSP Asclepias speciosa Torr. showy milkweed 6/2
ASST Asclepias stenophylla Gray slimleaf milkweed    
ACAN6 Acerates angustifolia (Nutt.) Dcne.   0/1
ASSU Asclepias subulata Dcne. rush milkweed 4/0
ASSU2 Asclepias subverticillata (Gray) Vail horsetail milkweed    
ASGA4 Asclepias galioides auct. non Kunth [misapplied]   2/1
ASSU3 Asclepias sullivantii Engelm. ex Gray prairie milkweed 2/1
ASSY Asclepias syriaca L. common milkweed 9/1
ASIN13 Asclepias intermedia Vail   0/1
ASTU Asclepias tuberosa L. butterfly milkweed 30/1
ASTUI Asclepias tuberosa L. ssp. interior Woods. butterfly milkweed    
ASTUT Asclepias tuberosa L. ssp. terminalis Woods.   2/0
ASTUT2 Asclepias tuberosa L. ssp. tuberosa butterfly milkweed 1/0
ASUNR Asclepias uncialis Greene ssp. ruthiae (Maguire) Kartesz & Gandhi Ruth's milkweed 1/0
ASVA Asclepias variegata L. redring milkweed 5/1
ASVE Asclepias verticillata L. whorled milkweed 4/1
ASVE2 Asclepias vestita Hook. & Arn. woolly milkweed 2/0
ASVI Asclepias viridiflora Raf. green comet milkweed 6/0
ACVI4 Acerates viridiflora (Raf.) Pursh ex Eat.   0/1
ASVI2 Asclepias viridis Walt. green antelopehorn 11/0
ASVI11 Asclepiodora viridis (Walt.) Gray   0/1
ASIMI Asimina Adans. pawpaw 2/1
ASAN6 Asimina angustifolia Raf. slimleaf pawpaw 1/0
ASPA18 Asimina parviflora (Michx.) Dunal smallflower pawpaw 10/1
ASTE11 Asimina tetramera Small fourpetal pawpaw 1/0
ASTR Asimina triloba (L.) Dunal pawpaw 17/2
ASPAL2 Aspalathus L. aspalathus 1/0
ASLI14 Aspalathus linearis (Burm. f.) R. Dahlgren rooibos    
ASCO39 Aspalathus contaminatus auct.   1/0
ASPAR Asparagus L. asparagus 1/0
ASAF Asparagus africanus Lam. African asparagus 1/0
ASAS4 Asparagus asparagoides (L.) Druce African asparagus fern 1/0
ASDE12 Asparagus densiflorus (Kunth) Jessop Sprenger's asparagus fern 3/0
ASSP9 Asparagus sprengeri Regel   1/0
ASOF Asparagus officinalis L. garden asparagus 3/1
ASSE12 Asparagus setaceus (Kunth) Jessop common asparagus fern    
ASPL5 Asparagus plumosus Baker   1/0
ASPR Asperugo procumbens L. German-madwort 1/1
ASFI2 Asphodelus fistulosus L. onionweed 1/0
ASDE19 Aspicilia desertorum (Krempelh.) Mereschk. desert aspicilia 5/0
ASFR11 Aspicilia fruticulosa (Eversm.) Flagey 1/0
ASCA17 Aspidotis carlotta-halliae (Wagner & Gilbert) Lellinger tufted lacefern 1/0
ASDE6 Aspidotis densa (Brack.) Lellinger Indian's dream 1/0
PEDE13 Pellaea densa (Brack.) Hook.   0/1
ASPLE Asplenium L. spleenwort 1/0
ASBR2 Asplenium bradleyi D.C. Eat. Bradley's spleenwort 1/1
ASEB Asplenium ×ebenoides R.R. Scott (pro sp.) [platyneuron × rhizophyllum] 0/1
ASEX2 Asplenium exiguum Bedd. little spleenwort    
ASFO6 Asplenium fontanum (L.) Bernh.   0/1
ASMO2 Asplenium montanum Willd. mountain spleenwort 0/1
ASNI Asplenium nidus L. Hawai'I birdnest fern 2/0
ASPI Asplenium pinnatifidum Nutt. lobed spleenwort 1/1
ASPL Asplenium platyneuron (L.) B.S.P. ebony spleenwort 5/1
ASRE Asplenium resiliens Kunze blackstem spleenwort 3/1
ASRH2 Asplenium rhizophyllum L. walking fern    
CARH8 Camptosorus rhizophyllus (L.) Link   1/1
ASRU2 Asplenium ruta-muraria L. wallrue 1/1
ASSC11 Asplenium scolopendrium L. Hart's tonguefern 0/1
ASSCA Asplenium scolopendrium L. var. americanum (Fern.) Kartesz & Gandhi Hart's tonguefern    
PHSCA Phyllitis scolopendrium (L.) Newman var. americana Fern.   0/1
ASSE Asplenium septentrionale (L.) Hoffmann forked spleenwort 1/0
ASTR2 Asplenium trichomanes L. maidenhair spleenwort 5/1
ASTR10 Asplenium trichomanes-ramosum L. brightgreen spleenwort    
ASVI10 Asplenium viride Huds.   0/1
ASTER Aster L. aster 1/0
ASAL3 Aster alpinus L. alpine aster 1/0
ASBI4 Astilbe biternata (Vent.) Britt. Appalachian false goat's beard 1/1
ASTRA Astragalus L. milkvetch 5/0
ASAC2 Astragalus accumbens Sheldon Zuni milkvetch 3/0
ASAE Astragalus aequalis Clokey Clokey's milkvetch 3/0
ASAG2 Astragalus agrestis Dougl. ex G. Don purple milkvetch 2/1
ASHY7 Astragalus hypoglottis Hook.   1/1
ASAL4 Astragalus albens Greene cushenbury milkvetch 5/0
ASAL6 Astragalus allochrous A. Gray halfmoon milkvetch 4/0
ASAL7 Astragalus alpinus L. alpine milkvetch 2/1
ASAM3 Astragalus americanus (Hook.) M.E. Jones American milkvetch    
ASFR4 Astragalus frigidus (L.) A. Gray p.p.   2/0
PHAM10 Phaca americana (Hook.) Rydb. ex Small   0/1
ASAM5 Astragalus amphioxys Gray Crescent milkvetch 6/0
ASAMA Astragalus amphioxys Gray var. amphioxys Crescent milkvetch 3/0
ASAN2 Astragalus andersonii Gray Anderson's milkvetch 4/0
ASARA Astragalus argophyllus Nutt. var. argophyllus silverleaf milkvetch 4/0
ASAR6 Astragalus arizonicus A. Gray Arizona milkvetch 2/0
ASAT Astragalus atratus S. Wats. mourning milkvetch 3/0
ASATO Astragalus atratus S. Watson var. owyheensis (A. Nelson & J.F. Macbr.) M.E. Jones Owyhee milkvetch 2/0
ASAU Astragalus austiniae Gray ex Brewer & S. Wats. Austin's milkvetch 1/0
ASAU4 Astragalus australis (L.) Lam. Indian milkvetch    
ASAB Astragalus aboriginorum Richards.   0/1
ASBE5 Astragalus beatleyae Barneby Beatley's milkvetch 3/0
ASBE3 Astragalus beckwithii Torr. & Gray Beckwith's milkvetch 1/0
ASBEP Astragalus beckwithii Torr. & Gray var. purpureus M.E. Jones Beckwith's milkvetch 5/0
ASBI2 Astragalus bisulcatus (Hook.) Gray twogrooved milkvetch 0/1
ASBO2 Astragalus bolanderi A. Gray Bolander's milkvetch 1/0
ASCA8 Astragalus callithrix Barneby Callaway milkvetch 1/0
ASCA9 Astragalus calycosus Torr. ex S. Wats. Torrey's milkvetch 8/0
ASCAC5 Astragalus calycosus Torr. ex S. Wats. var. calycosus Torrey's milkvetch 2/0
ASCA11 Astragalus canadensis L. Canadian milkvetch 8/1
ASCAB Astragalus canadensis L. var. brevidens (Gandog.) Barneby shorttooth Canadian milkvetch 2/0
ASCAC6 Astragalus canadensis L. var. canadensis Canadian milkvetch    
ASCA29 Astragalus carolinianus L.   2/1
ASCA12 Astragalus caricinus (M.E. Jones) Barneby buckwheat milkvetch 1/0
ASCA14 Astragalus casei Gray ex Brewer & S. Wats. Case's milkvetch 4/0
ASCE Astragalus ceramicus Sheldon painted milkvetch 4/0
ASCEF Astragalus ceramicus Sheldon var. filifolius (Gray) F.J. Herm. painted milkvetch    
PHLO7 Phaca longifolia (Pursh) Nutt.   0/1
ASCH4 Astragalus chamaeleuce Gray cicada milkvetch 3/0
ASCH6 Astragalus chinensis L. f. Chinese milkvetch 1/0
ASCI4 Astragalus cicer L. cicer milkvetch 1/0
ASCO6 Astragalus coccineus Brandeg. scarlet milkvetch 6/0
ASCO7 Astragalus collinus Douglas ex G. Don hillside milkvetch 3/0
ASCOM2 Astragalus coltonii M.E. Jones var. moabensis M.E. Jones Moab milkvetch 5/0
ASCO17 Astragalus contortuplicatus L. Hungarian milkvetch 1/0
ASCR2 Astragalus crassicarpus Nutt. groundplum milkvetch 2/0
ASCRB Astragalus crassicarpus Nutt. var. berlandieri Barneby groundplum milkvetch    
ASME9 Astragalus mexicanus A. DC.   1/0
GEME Geoprumnon mexicanum (A. DC.) Rydb. ex Small   0/1
ASCRC3 Astragalus crassicarpus Nutt. var. crassicarpus groundplum milkvetch    
ASCA28 Astragalus caryocarpus Ker Gawl.   1/0
GECR5 Geoprumnon crassicarpum (Nutt.) Rydb. ex Small   0/1
ASCU3 Astragalus curtipes Gray Morro milkvetch 8/0
ASCU4 Astragalus curvicarpus (Heller) J.F. Macbr. curvepod milkvetch 8/0
ASDE3 Astragalus desperatus M.E. Jones rimrock milkvetch 5/0
ASDI2 Astragalus diaphanus Douglas ex Hook. transparent milkvetch    
ASDI7 Astragalus diurnus S. Watson   1/0
ASDID2 Astragalus didymocarpus Hook. & Arn. var. didymocarpus dwarf white milkvetch 3/0
ASDID Astragalus didymocarpus Hook. & Arn. var. dispermus (A. Gray) Jeps. dwarf white milkvetch    
ASDI8 Astragalus dispermus A. Gray   1/0
ASDI4 Astragalus distortus Torr. & Gray Ozark milkvetch 2/1
ASDO Astragalus douglasii (Torr. & A. Gray) A. Gray Douglas's milkvetch 2/0
ASDR3 Astragalus drummondii Dougl. ex Hook. Drummond's milkvetch 1/1
ASEG Astragalus egglestonii (Rydb.) Kearney & Peebles Eggleston's milkvetch 2/0
ASEM2 Astragalus emoryanus (Rydb.) Cory Emory's milkvetch 2/0
ASEU2 Astragalus eucosmus B.L. Robins. elegant milkvetch 0/1
ASEU4 Astragalus eurekensis M.E. Jones Eureka milkvetch 2/0
ASFA3 Astragalus falcatus Lam. Russian milkvetch 2/0
ASFI Astragalus filipes Torr. ex Gray basalt milkvetch 2/0
ASST9 Astragalus stenophyllus Torr. & A. Gray   2/0
ASFL Astragalus flavus Nutt. yellow milkvetch 4/0
ASFL2 Astragalus flexuosus (Hook.) Dougl. ex G. Don flexile milkvetch 2/1
ASGE Astragalus geyeri A. Gray Geyer's milkvetch 4/0
ASGI Astragalus gibbsii Kellogg Gibbs' milkvetch 2/0
ASGI2 Astragalus giganteus S. Watson giant milkvetch 1/0
ASGI3 Astragalus gilensis Greene Gila milkvetch 2/0
ASGR3 Astragalus gracilis Nutt. slender milkvetch 0/1
ASGU Astragalus gummifer Labill. gum tragacanth milkvetch 1/0
ASHA13 Astragalus hamosus L. European milkvetch 2/0
ASHU Astragalus humillimus Gray Mancos milkvetch 2/0
ASHU2 Astragalus humistratus Gray groundcover milkvetch 5/0
ASHY2 Astragalus hyalinus M.E. Jones summer milkvetch 0/1
ASIN6 Astragalus insularis Kellogg Cedros milkvetch 2/0
ASIN8 Astragalus inyoensis Sheldon Inyo milkvetch 5/0
ASIO Astragalus iodanthus S. Watson Humboldt River milkvetch 6/0
ASIOI Astragalus iodanthus S. Wats. var. iodanthus Humboldt River milkvetch 2/0
ASJEJ Astragalus jejunus S. Wats. var. jejunus starveling milkvetch 4/0
ASJO Astragalus johannis-howellii Barneby Long Valley milkvetch 5/0
ASKE Astragalus kentrophyta A. Gray spiny milkvetch 2/0
ASKEK Astragalus kentrophyta Gray var. kentrophyta spiny milkvetch    
KEMO Kentrophyta montana Nutt.   0/1
ASLAR Astragalus laxmannii Jacq. var. robustior (Hook.) Barneby & S.L. Welsh prairie milkvetch    
ASST82 Astragalus striatus Nutt.   1/0
ASLA8 Astragalus layneae Greene widow's milkvetch 3/0
ASLE8 Astragalus lentiginosus Dougl. ex Hook. freckled milkvetch 4/0
ASLEB Astragalus lentiginosus Dougl. ex Hook. var. borreganus M.E. Jones Borrego milkvetch 2/0
ASAR11 Astragalus arthu-schottii A. Gray   1/0
ASLED Astragalus lentiginosus Douglas ex Hook. var. diphysus (A. Gray) M.E. Jones freckled milkvetch    
ASAR12 Astragalus araneosus Sheldon   1/0
ASLEF Astragalus lentiginosus Dougl. ex Hook. var. floribundus Gray freckled milkvetch 2/0
ASLEF2 Astragalus lentiginosus Douglas ex Hook. var. fremontii (A. Gray ex Torr.) S. Watson Fremont's milkvetch    
ASFR3 Astragalus fremontii A. Gray ex Torr.   2/0
ASLEK Astragalus lentiginosus Dougl. ex Hook. var. kennedyi (Rydb.) Barneby Kennedy's milkvetch 1/0
ASLEM3 Astragalus lentiginosus Dougl. ex Hook. var. micans Barneby freckled milkvetch 5/0
ASLEP3 Astragalus lentiginosus Dougl. ex Hook. var. piscinensis Barneby Fish Slough milkvetch 5/0
ASLES3 Astragalus lentiginosus Dougl. ex Hook. var. semotus Jepson freckled milkvetch 1/0
ASLO3 Astragalus lonchocarpus Torr. rushy milkvetch 3/0
ASLO4 Astragalus lotiflorus Hook. lotus milkvetch 1/1
ASMA6 Astragalus malacus Gray shaggy milkvetch 9/0
ASMI5 Astragalus micromerius Barneby Chaco milkvetch 1/0
ASMIV Astragalus minthorniae (Rydb.) Jepson var. villosus Barneby Minthorn's milkvetch 6/0
ASMI10 Astragalus missouriensis Nutt. Missouri milkvetch 3/1
ASMO7 Astragalus mollissimus Torr. woolly locoweed 11/1
ASMOB Astragalus mollissimus Torr. var. bigelovii (Gray) Barneby woolly locoweed 3/0
ASMO9 Astragalus monoensis Barneby Mono milkvetch 3/0
ASMOC2 Astragalus monumentalis Barneby var. cottamii (Welsh) Isely Cottam's milkvetch    
ASCO18 Astragalus cottamii Welsh   3/0
ASNA Astragalus naturitensis Payson Naturita milkvetch 4/0
ASNE2 Astragalus neglectus (Torr. & Gray) Sheldon Cooper's milkvetch    
PHNE8 Phaca neglecta Torr. & Gray   0/1
ASNE6 Astragalus newberryi Gray Newberry's milkvetch 2/0
ASNEC Astragalus newberryi A. Gray var. castoreus M.E. Jones Newberry's milkvetch 1/0
ASNU2 Astragalus nudisiliquus A. Nelson cobblestone milkvetch 3/0
ASNU4 Astragalus nuttallianus DC. smallflowered milkvetch 3/0
ASNUA Astragalus nuttallianus DC. var. austrinus (Small) Barneby smallflowered milkvetch 1/0
ASOB4 Astragalus obscurus S. Wats. arcane milkvetch 2/0
ASON2 Astragalus oniciformis Barneby Picabo milkvetch 2/0
ASOO3 Astragalus oophorus S. Watson egg milkvetch 1/0
ASOOC2 Astragalus oophorus S. Wats. var. clokeyanus Barneby egg milkvetch 3/0
ASOX Astragalus oxyphysus A. Gray Mt. Diablo milkvetch 1/0
ASPA11 Astragalus panamintensis Sheldon Panamint milkvetch 2/0
ASPA13 Astragalus parryi A. Gray Parry's milkvetch 2/0
ASPA14 Astragalus pattersonii Gray ex Brandeg. Patterson's milkvetch 3/0
ASPE5 Astragalus pectinatus (Hook.) Dougl. ex G. Don narrowleaf milkvetch 1/1
ASPE6 Astragalus perianus Barneby Rydberg's milkvetch 1/0
ASPH Astragalus phoenix Barneby Ash Meadows milkvetch 3/0
ASPI3 Astragalus pictiformis Barneby Guadalupe milkvetch 2/0
ASPL2 Astragalus plattensis Nutt. Platte River milkvetch    
GEPL3 Geoprumnon plattense (Nutt.) Rydb.   0/1
ASPL3 Astragalus platytropis Gray broadkeel milkvetch 1/0
ASPO2 Astragalus pomonensis M.E. Jones Pomona milkvetch 2/0
ASPR5 Astragalus praelongus Sheldon stinking milkvetch 2/0
ASPRP3 Astragalus preussii Gray var. preussii Preuss' milkvetch 2/0
ASPR8 Astragalus proximus (Rydb.) Woot. & Standl. Aztec milkvetch 4/0
ASPU7 Astragalus pulsiferae Gray Ames' milkvetch 2/0
ASPU9 Astragalus purshii Dougl. ex Hook. woollypod milkvetch 4/0
ASPUG2 Astragalus purshii Douglas ex Hook. var. glareosus (Douglas ex Hook.) Barneby woollypod milkvetch    
ASGL7 Astragalus glareosus Douglas ex Hook.   2/0
ASPUP7 Astragalus purshii Dougl. ex Hook. var. purshii woollypod milkvetch 1/0
ASPUT Astragalus purshii Dougl. ex Hook. var. tinctus M.E. Jones woollypod milkvetch 6/0
ASRA2 Astragalus racemosus Pursh cream milkvetch 1/1
ASRE4 Astragalus remotus (M.E. Jones) Barneby Spring Mountain milkvetch 3/0
ASRE5 Astragalus reventus A. Gray Blue Mountain milkvetch 2/0
ASRO Astragalus robbinsii (Oakes) Gray Robbins' milkvetch 1/1
ASROM Astragalus robbinsii (Oakes) Gray var. minor (Hook.) Barneby Robbins' milkvetch    
ASBL4 Astragalus blakei Egglest.   0/1
ASSC7 Astragalus scopulorum Porter Rocky Mountain milkvetch 2/0
ASSES4 Astragalus serenoi (Kuntze) Sheldon var. shockleyi (M.E. Jones) Barneby Shockley's milkvetch    
ASSH8 Astragalus shockleyi M.E. Jones   1/0
ASSES Astragalus serenoi (Kuntze) Sheldon var. sordescens Barneby naked milkvetch 1/0
ASSE5 Astragalus sericoleucus Gray silky milkvetch 1/0
ORSE2 Orophaca sericea auct. non (Nutt.) Britt. [misapplied]   0/1
ASSH3 Astragalus shortianus Nutt. Short's milkvetch 1/1
ASSI3 Astragalus siliceus Barneby Flint Mountain milkvetch 1/0
ASSO5 Astragalus soxmaniorum Lundell Soxman's milkvetch 4/0
ASSP6 Astragalus spatulatus Sheldon tufted milkvetch    
HOCA7 Homalobus caespitosus Nutt.   0/1
ORCA7 Orophaca caespitosa (Nutt.) Britt.   0/1
ASSP7 Astragalus speirocarpus A. Gray threadstalk milkvetch 1/0
ASTE5 Astragalus tenellus Pursh looseflower milkvetch    
HOTE5 Homalobus tenellus (Pursh) Britt.   0/1
ASTE7 Astragalus tennesseensis Gray ex Chapman Tennessee milkvetch    
GETE7 Geoprumnon tennesseense (Gray ex Chapman) Rydb.   0/1
ASTE8 Astragalus tephrodes Gray ashen milkvetch 1/0
ASTE10 Astragalus tetrapterus Gray fourwing milkvetch 1/0
ASCI7 Astragalus cinerascens (Rydb.) Tidestrom   1/0
ASTH Astragalus thurberi A. Gray Thurber's milkvetch 1/0
ASTO2 Astragalus toanus M.E. Jones Toano milkvetch 6/0
ASTRL Astragalus trichopodus (Nutt.) A. Gray var. lonchus (M.E. Jones) Barneby Santa Barbara milkvetch    
ASLE16 Astragalus leucopsis (Torr. & A. Gray) Torr. & A. Gray   1/0
ASTRL2 Astragalus trichopodus (Nutt.) Gray ssp. leucopsis (Torr. & Gray) Thorne   1/0
ASUT Astragalus utahensis (Torr.) Torr. & A. Gray Utah milkvetch 2/0
ASWH Astragalus whitneyi Gray balloonpod milkvetch 3/0
ASWHC Astragalus whitneyi Gray var. confusus Barneby conelike milkvetch 2/0
ASWHL Astragalus whitneyi Gray var. lenophyllus (Rydb.) Barneby balloonpod milkvetch 1/0
ASYO Astragalus yoder-williamsii Barneby Osgood Mountain milkvetch 1/0
ASINI2 Astranthium integrifolium (Michx.) Nutt. ssp. integrifolium entireleaf western daisy    
BEIN4 Bellis integrifolia Michx.   0/1
ASGR17 Astripomoea grantii (Rendle) Verdc. 1/0
ASCO42 Astrolepis cochisensis (Goodding) Benham & Windham Cochise scaly cloakfern 3/0
ASIN19 Astrolepis integerrima (Hook.) Benham & Windham hybrid cloakfern 3/0
ASSI9 Astrolepis sinuata (Lag. ex Sw.) Benham & Windham wavy scaly cloakfern 3/0
ASWI4 Astrolepis windhamii Benham Windham's scaly cloakfern 3/0
ASMY3 Astrophytum myriostigma Lem. 1/0
ASOR9 Astrophytum ornatum (DC.) Britton & Rose bishop's hat 1/0
ASGA2 Asystasia gangetica (L.) T. Anders. Chinese violet 5/0
ATEM Atamisquea emarginata Miers ex Hook. & Arn. vomitbush 1/0
ATAM Athyrium americanum (Butters) Maxon alpine ladyfern 2/0
ATFI Athyrium filix-femina (L.) Roth common ladyfern 8/2
ATFIA2 Athyrium filix-femina (L.) Roth ssp. asplenioides (Michx.) Hultén asplenium ladyfern    
ATAS Athyrium asplenioides (Michx.) A.A. Eat.   1/0
ATFIC Athyrium filix-femina (L.) Roth ssp. cyclosorum (Rupr.) C. Christens. subarctic ladyfern    
ATFIS Athyrium filix-femina (L.) Roth var. sitchense (Rupr.) Ledeb.   1/0
ATPL Atrichoseris platyphylla (Gray) Gray parachute plant 2/0
ATAN3 Atrichum angustatum (Brid.) Bruch & Schimp. in B.S.G. atrichum moss 3/0
ATHA4 Atrichum haussknechtii Jur. & Milde Haussknecht's atrichum moss 4/0
ATTE70 Atrichum tenellum (R?hl.) Bruch & Schimp. in B.S.G. atrichum moss 4/0
ATUN2 Atrichum undulatum (Hedw.) P. Beauv. undulate atrichum moss 5/0
ATRIP Atriplex L. saltbush 3/1
ATAR2 Atriplex argentea Nutt. silverscale saltbush 2/1
ATCA Atriplex californica Moq. California saltbush 1/0
ATCA2 Atriplex canescens (Pursh) Nutt. fourwing saltbush 16/1
ATCO Atriplex confertifolia (Torr. & Frém.) S. Wats. shadscale saltbush 6/0
ATCR2 Atriplex cristata Humb. & Bonpl. ex Willd. crested saltbush    
ATAR Atriplex arenaria Nutt.   0/1
ATHO Atriplex hortensis L. garden orache 1/0
ATLE Atriplex lentiformis (Torr.) S. Wats. big saltbush 4/0
ATLE2 Atriplex leucophylla (Moq.) D. Dietr. beach saltbush 1/0
ATNU Atriplex nummularia Lindl. bluegreen saltbush 1/0
ATNU2 Atriplex nuttallii S. Wats. Nuttall's saltbush 0/1
ATOB Atriplex obovata Moq. mound saltbush 1/0
ATPA Atriplex pacifica A. Nels. Davidson's saltbush 2/0
ATPA4 Atriplex patula L. spear saltbush 1/0
ATPO Atriplex polycarpa (Torr.) S. Wats. cattle saltbush 1/0
ATPR Atriplex prostrata Bouchér ex DC. triangle orache 2/0
ATHA Atriplex hastata sensu Aellen, non L.   0/1
ATRO Atriplex rosea L. tumbling saltweed 0/1
ATSE Atriplex semibaccata R. Br. Australian saltbush 1/1
ATBE Atropa bella-donna L. belladonna 1/0
AUDE Aubrieta deltoidea (L.) DC. lilacbush 1/0
AUJA Aucuba japonica Thunb. Japanese laurel 3/0
AUAN70 Aulacomnium androgynum (Hedw.) Schwaegr. aulacomnium moss 5/0
AUPA70 Aulacomnium palustre (Hedw.) Schwaegr. aulacomnium moss 6/0
AUFLF Aureolaria flava (L.) Farw. var. flava smooth yellow false foxglove    
GEFL2 Gerardia flava L.   0/1
AUGRG Aureolaria grandiflora (Benth.) Pennell var. grandiflora largeflower yellow false foxglove    
GEGR4 Gerardia grandiflora Benth.   0/1
AUGRS Aureolaria grandiflora (Benth.) Pennell var. serrata (Torr. ex Benth.) Pennell largeflower yellow false foxglove    
GEGRS Gerardia grandiflora Benth. var. serrata (Torr. ex Benth.) B.L. Robins.   0/1
AULA Aureolaria laevigata (Raf.) Raf. entireleaf yellow false foxglove    
GELA3 Gerardia laevigata Raf.   0/1
AUPE Aureolaria pectinata (Nutt.) Pennell combleaf yellow false foxglove 1/0
GEPE5 Gerardia pectinata (Nutt.) Benth.   1/0
AUPEP Aureolaria pedicularia (L.) Raf. var. pedicularia fernleaf yellow false foxglove    
GEPE6 Gerardia pedicularia L.   1/1
AUVI Aureolaria virginica (L.) Pennell downy yellow false foxglove 2/0
AGVI7 Agalinis virginica (L.) Blake   1/0
GEVI10 Gerardia virginica (L.) B.S.P.   0/1
AUCH Austrocedrus chilensis (D. Don) Pic. Serm. & Bizzarri Chilean cedar 2/0
AVENA Avena L. oat 4/0
AVAB Avena abyssinica Hochst. Abyssinian oat 2/0
AVBA Avena barbata Pott ex Link slender oat 1/1
AVHI Avena hirsuta Moench   1/0
AVFA Avena fatua L. wild oat 1/2
AVNU2 Avena nuda L. [excluded] naked oat 1/0
AVSA Avena sativa L. common oat 1/2
AVBY Avena byzantina K. Koch   1/0
AVST2 Avena strigosa Schreb. lopsided oat 1/0
AVHO3 Avenula hookeri (Scribn.) Holub spikeoat    
AVHO2 Avena hookeri Scribn.   0/1
HEHO8 Helictotrichon hookeri (Scribn.) Henr.   0/1
AVPU2 Avenula pubescens (Huds.) Dumort. downy alpine oatgrass    
AVPU Avena pubescens Huds.   1/0
HEPU4 Helictotrichon pubescens (Huds.) Bess. ex Pilger   2/1
AVBI Averrhoa bilimbi L. bilimbi 3/0
AVCA Averrhoa carambola L. carambola 10/0
AVGE Avicennia germinans (L.) L. black mangrove 2/0
AVNI2 Avicennia nitida Jacq.   1/0
AXCO Axonopus compressus (Sw.) Beauv. broadleaf carpetgrass 1/1
ANCO8 Anastrophus compressus (Sw.) Schlecht. ex Doell   0/1
AXFI Axonopus fissifolius (Raddi) Kuhlm. common carpetgrass 0/1
AXAF Axonopus affinis Chase   3/1
AXFU Axonopus furcatus (Flueggé) A.S. Hitchc. big carpetgrass 0/1
ANFU2 Anastrophus furcatus (Flueggé) Nash   0/1
AXPU Axonopus purpusii (Mez) Chase Purpus' carpetgrass 1/0
AXSC Axonopus scoparius (Fluegge) Hitchc. carpetgrass 1/0
AXAM Axyris amaranthoides L. Russian pigweed 1/1
AZIN2 Azadirachta indica A. Juss. neem 1/0
AZCA Azolla caroliniana Willd. Carolina mosquitofern 1/1
AZFI Azolla filiculoides Lam. Pacific mosquitofern 1/0
BACCH Baccharis L. baccharis 1/0
BAAN Baccharis angustifolia Michx. saltwater false willow 1/1
BAHA Baccharis halimifolia L. eastern baccharis 11/1
BANE2 Baccharis neglecta Britt. Rooseveltweed 0/1
BAPI Baccharis pilularis DC. coyotebrush 5/1
BASA4 Baccharis salicifolia (Ruiz & Pavón) Pers. mule's fat    
BAGL2 Baccharis glutinosa Pers.   1/0
BAVI Baccharis viminea DC.   1/1
BASA Baccharis salicina Torr. & Gray Great Plains false willow 0/1
BAWR Baccharis wrightii Gray Wright's baccharis 0/1
BACA Bacopa caroliniana (Walt.) B.L. Robins. blue waterhyssop 4/1
HYCA16 Hydrotrida caroliniana (Walt.) Small   0/1
BAMO Bacopa monnieri (L.) Pennell herb of grace 6/0
BRMO5 Bramia monnieri (L.) Drake   0/1
BARO Bacopa rotundifolia (Michx.) Wettst. disk waterhyssop 1/1
BRRO4 Bramia rotundifolia (Michx.) Britt.   0/1
BAVI9 Baeckea virgata (J.R. Forst. & G. Forst.) Andrews tall baeckea 3/0
BAHIA Bahia Lag. bahia 1/0
BAAB Bahia absinthifolia Benth. hairyseed bahia 3/0
BADI Bahia dissecta (Gray) Britt. ragleaf bahia 13/0
BAMU Baileya multiradiata Harvey & Gray ex Gray desert marigold 12/0
BAPA Baileya pauciradiata Harvey & Gray ex Gray laxflower 2/0
BAPL3 Baileya pleniradiata Harvey & Gray ex Gray woolly desert marigold 4/0
BALAN Balanites Del. balanites 1/0
BAAE Balanites aegyptiaca (L.) Del. desert date 2/0
BAUN Balduina uniflora Nutt. oneflower honeycombhead    
ENUN Endorima uniflora (Nutt.) Raf.   0/1
BANI Ballota nigra L. black horehound 0/1
BACAI Balsamorhiza careyana Gray var. intermedia Cronq. intermediate balsamroot 2/0
BADE2 Balsamorhiza deltoidea Nutt. deltoid balsamroot 1/0
BAHO Balsamorhiza hookeri Nutt. Hooker's balsamroot 6/0
BAHOL Balsamorhiza hookeri (Hook.) Nutt. var. lagocephala (Sharp) Cronq. rabbithead balsamroot 2/0
BASA3 Balsamorhiza sagittata (Pursh) Nutt. arrowleaf balsamroot 11/0
BAAR8 Bambusa arundinacea (Retz.) Willd. bamboo 2/0
BALO4 Bambusa longispiculata Gamble ex Brandis bamboo 1/0
BAMU2 Bambusa ?multiplex (Lour.) Raeusch. ex J.A. & J.H. Schultes hedge bamboo 5/0
BAPO6 Bambusa polymorpha Munro polymorph bamboo 1/0
BATE6 Bambusa textilis McClure textile bamboo 2/0
BATU Bambusa tulda Roxb. bamboo 1/0
BAVU2 Bambusa vulgaris Schrad. ex J.C. Wendl. common bamboo 3/0
BAAS5 Banksia ashbyi Baker f. Ashby's banksia 1/0
BAER Banksia ericifolia L. f. heath-leaf banksia 2/0
BAMA15 Banksia marginata Cav. silver banksia 3/0
BASP6 Banksia spinulosa Sm. hairpin banksia 2/0
BANI3 Baphia nitida Lodd. camwood 1/0
BAPTI Baptisia Vent. wild indigo 1/0
BAAL Baptisia alba (L.) Vent. white wild indigo 4/1
BAALM Baptisia alba (L.) Vent. var. macrophylla (Larisey) Isely largeleaf wild indigo    
BALE2 Baptisia leucantha Torr. & Gray   3/1
BAAR Baptisia arachnifera Duncan cobwebby wild indigo 3/0
BAAU Baptisia australis (L.) R. Br. ex Ait. f. blue wild indigo 5/1
BAAUM Baptisia australis (L.) R. Br. ex Ait. f. var. minor (Lehm.) Fern. blue wild indigo    
BAMI4 Baptisia minor Lehm.   3/0
BABR2 Baptisia bracteata Muhl. ex Ell. longbract wild indigo 1/1
BABRL2 Baptisia bracteata Muhl. ex Ell. var. leucophaea (Nutt.) Kartesz & Gandhi longbract wild indigo    
BALE3 Baptisia leucophaea Nutt.   4/0
BACI Baptisia cinerea (Raf.) Fern. & Schub. grayhairy wild indigo 1/0
BAVI7 Baptisia villosa auct. non (Walt.) Nutt. [misapplied]   1/1
BALA3 Baptisia lanceolata (Walt.) Ell. gopherweed 3/0
BAME Baptisia megacarpa Chapm. ex Torr. & A. Gray Apalachicola wild indigo 1/0
BASP Baptisia sphaerocarpa Nutt. yellow wild indigo 3/0
BAVI2 Baptisia viridis Larisey   1/0
BATI Baptisia tinctoria (L.) R. Br. ex Ait. f. horseflyweed 3/1
BAOR Barbarea orthoceras Ledeb. American yellowrocket 1/1
BAVE Barbarea verna (P. Mill.) Aschers. early yellowrocket 2/1
BAVU Barbarea vulgaris Ait. f. garden yellowrocket 9/2
BAST Barbarea stricta auct. non Andrz. [misapplied]   0/1
BAPI3 Barbieria pinnata (Pers.) Baill. clitoria 2/0
CLPI5 Clitoria pinnata (Pers.) R.H. Sm.   1/0
BAAT3 Barbilophozia attenuata (Mart.) Loeske 2/0
BABA4 Barbilophozia barbata (Schmid. ex Schreb.) Loeske 1/0
BAFL5 Barbilophozia floerkei (F. Weber & D. Mohr) Loeske 2/0
BAHA3 Barbilophozia hatcheri (A. Evans) Loeske 4/0
BAKU Barbilophozia kunzeana (Huebener) Gams 2/0
BALY Barbilophozia lycopodioides (Wallr.) Loeske 3/0
BAQU Barbilophozia quadriloba (Lindb.) Loeske 1/0
BACO8 Barbula convoluta Hedw. convoluted barbula moss 2/0
BAUN6 Barbula unguiculata Hedw. barbula moss 5/0
BARLE Barleria L. Philippine violet 1/0
BACR Barleria cristata L. crested Philippine violet 1/0
BAPR Barleria prionitis L. porcupine flower 1/0
BAAS3 Barringtonia asiatica (L.) Kurz sea putat 2/0
BAPA2 Bartonia paniculata (Michx.) Muhl. twining screwstem 0/1
BAVE2 Bartonia verna (Michx.) Raf. ex Bart. white screwstem 0/1
BAVI3 Bartonia virginica (L.) B.S.P. yellow screwstem 1/1
BAHA4 Bartramia halleriana Hedw. Haller's bartramia moss 5/0
BAIT70 Bartramia ithyphylla Brid. bartramia moss 2/0
BAPO70 Bartramia pomiformis Hedw. bartramia moss 4/0
BAST6 Bartramia stricta Brid. bartramia moss 4/0
BAAL2 Basella alba L. Ceylon spinach 3/0
BASSI Bassia All. molly    
KOCHI Kochia Roth   1/0
BAHY Bassia hyssopifolia (Pallas) Kuntz fivehorn smotherweed 2/1
BASC5 Bassia scoparia (L.) A.J. Scott burningbush    
KOSC Kochia scoparia (L.) Schrad.   2/2
BAVI4 Bastardia viscosa (L.) Kunth viscid mallow 1/0
BAEG6 Bastardiopsis eggersii (E.G. Baker) Fuertes & Fryxell Jost Van Dyke's Indian mallow 1/0
BAMA5 Batis maritima L. turtleweed 8/0
BAUHI Bauhinia L. bauhinia 4/0
BADI9 Bauhinia divaricata L. [excluded] 1/0
BAES Bauhinia esculenta Burch. camel's foot 1/0
BAFA Bauhinia fassoglensis Kotschy ex Schweinf. bauhinia 1/0
TYFA2 Tylosema fassoglense (Schweinf.) Torre & Hillc.   1/0
BAGA Bauhinia galpinii N.E. Br. African plume 1/0
BALU Bauhinia lunarioides A. Gray ex S. Watson Texasplume    
BACO Bauhinia congesta (Britton & Rose) Lundell   1/0
BAMO2 Bauhinia monandra Kurz Napoleon's plume 5/0
BAPA3 Bauhinia pauletia Pers. railroadfence 1/0
BAPU Bauhinia purpurea L. butterfly tree 10/0
BATO Bauhinia tomentosa L. St. Thomas tree 1/0
BAVA Bauhinia variegata L. mountain ebony 3/0
BAYU Bauhinia yunnanensis Franch. Yunnan bauhinia 1/0
BATR4 Bazzania tricrenata (Wahlenb.) Lindb. 4/0
BATR5 Bazzania trilobata (L.) Gray 3/0
BERE4 Beaucarnea recurvata Lem. bottle-palm 1/0
BEJU Bebbia juncea (Benth.) Greene sweetbush 1/0
BEJUA Bebbia juncea (Benth.) Greene var. aspera Greene sweetbush 2/0
BECKM Beckmannia Host sloughgrass 2/0
BESY Beckmannia syzigachne (Steud.) Fern. American sloughgrass 5/1
BEER2 Beckmannia eruciformis auct. non (L.) Host [misapplied]   0/1
BEGON Begonia L. begonia 2/0
BECU Begonia cucullata Willd. clubed begonia 1/0
BERA3 Bejaria racemosa Vent. tarflower    
BERA2 Befaria racemosa Vent. [orthographic error]   3/0
BELAM Belamcanda Adans. belamcanda 1/0
BECH Belamcanda chinensis (L.) DC. blackberry lily 6/0
GECH2 Gemmingia chinensis (L.) Kuntze   0/1
BETR Bellardia trixago (L.) All. Mediterranean lineseed 4/0
BEPE2 Bellis perennis L. lawndaisy 3/1
BEHI3 Benincasa hispida (Thunb.) Cogn. waxgourd 2/0
BEOR Bensoniella oregana (Abrams & Bacig.) Morton Oregon bensoniella 3/0
BERBE Berberis L. barberry 1/1
BECA2 Berberis canadensis P. Mill. American barberry 0/1
BEDA Berberis darwinii Hook. Darwin's berberis 2/0
BEFE Berberis fendleri A. Gray Colorado barberry 1/0
BEME2 Berberis ×mentorensis L.M. Ames Mentor barberry 1/0
BETH Berberis thunbergii DC. Japanese barberry 5/0
BEVU Berberis vulgaris L. common barberry 3/1
BEWI3 Berberis wisleyensis Ahrendt Wisley barberry 1/0
BESC Berchemia scandens (Hill) K. Koch Alabama supplejack 4/2
BERGE2 Bergenia Moench elephant-ear 1/0
BECR3 Bergenia crassifolia (L.) Fritsch Siberian-tea 2/0
BEEM Bergerocactus emoryi (Engelm.) Engelm. golden snakecactus 3/0
BETE Bergia texana (Hook.) Seub. ex Walp. Texas bergia 1/2
BERLA Berlandiera DC. greeneyes 1/0
BEBE4 Berlandiera betonicifolia (Hook.) Small Texas greeneyes 3/0
BETE2 Berlandiera texana DC.   2/1
BELY Berlandiera lyrata Benth. lyreleaf greeneyes 5/1
BEPU2 Berlandiera pumila (Michx.) Nutt. soft greeneyes 3/0
BESU Berlandiera subacaulis (Nutt.) Nutt. Florida greeneyes 1/0
BEIN2 Berteroa incana (L.) DC. hoary alyssum 1/1
BEER Berula erecta (Huds.) Coville cutleaf waterparsnip 2/2
BEBU Besseya bullii (Eat.) Rydb. Bull's coraldrops    
SYBU Synthyris bullii (Eat.) Heller   0/1
BERU Besseya rubra (Dougl. ex Hook.) Rydb. red besseya    
SYRU2 Synthyris rubra (Dougl. ex Hook.) Benth.   0/1
BEVU2 Beta vulgaris L. common beet 1/0
BETUL Betula L. birch 2/1
BEAL2 Betula alleghaniensis Britt. yellow birch 8/2
BEALA Betula alleghaniensis Britt. var. alleghaniensis yellow birch 2/0
BELU Betula lutea Michx. f.   1/1
BECAC Betula ×caerulea Blanch. (pro sp.) var. caerulea blue birch 0/1
BEGL Betula glandulosa Michx. resin birch 3/1
BELE Betula lenta L. sweet birch 8/2
BENA Betula nana L. dwarf birch 3/2
BENI Betula nigra L. river birch 7/2
BEOC2 Betula occidentalis Hook. water birch 8/1
BEFO2 Betula fontinalis Sarg.   1/1
BEPA Betula papyrifera Marsh. paper birch 15/1
BEPAP Betula papyrifera Marsh. var. papyrifera paper birch    
BEPAC Betula papyrifera Marsh. var. commutata (Regel) Fern.   2/0
BEPE3 Betula pendula Roth European white birch 4/0
BEPO Betula populifolia Marsh. gray birch 5/3
BEPUP5 Betula pubescens Ehrh. ssp. pubescens downy birch    
BEAL3 Betula alba L.   1/0
BEPU4 Betula pumila L. bog birch 2/2
BESA Betula ×sandbergii Britt. [papyrifera × pumila] 0/1
BEUB Betula uber (Ashe) Fern. Virginia roundleaf birch 9/0
BIDEN Bidens L. beggarticks 1/0
BIAL Bidens alba (L.) DC. romerillo 1/0
BIALR Bidens alba (L.) DC. var. radiata (Schultz-Bip.) Ballard ex T.E. Melchert romerillo 1/0
BIAR Bidens aristosa (Michx.) Britt. bearded beggarticks 8/3
BIIN2 Bidens involucrata (Nutt.) Britt.   0/1
BIPO Bidens polylepis Blake   3/0
BIBE2 Bidens beckii Torr. ex Spreng. Beck's watermarigold    
MEBE2 Megalodonta beckii (Torr. ex Spreng.) Greene   0/1
BIBI3 Bidens bidentoides (Nutt.) Britt. Delmarva beggarticks 0/1
BIBI Bidens bigelovii Gray Bigelow's beggarticks 2/0
BIBI7 Bidens bipinnata L. Spanish needles 9/1
BICE Bidens cernua L. nodding beggartick 5/2
BICO5 Bidens connata Muhl. ex Willd. purplestem beggarticks 3/2
BICO Bidens coronata (L.) Britt. crowned beggarticks 1/2
BITR2 Bidens trichosperma (Michx.) Britt.   0/1
BIDI Bidens discoidea (Torr. & Gray) Britt. small beggarticks 2/2
BIFR Bidens frondosa L. devil's beggartick 5/2
BILA Bidens laevis (L.) B.S.P. smooth beggartick 3/2
BILE Bidens leptocephala Sherff fewflower beggarticks 4/0
BIMI Bidens mitis (Michx.) Sherff smallfruit beggarticks 2/1
BIPI Bidens pilosa L. hairy beggarticks 4/0
BIRE Bidens reptans (L.) G. Don manzanilla trepador 1/0
BITE Bidens tenuisecta Gray slimlobe beggarticks 3/0
BITR Bidens tripartita L. threelobe beggarticks 2/1
BICO3 Bidens comosa (Gray) Wieg.   4/2
BIVU Bidens vulgata Greene big devils beggartick 1/1
BIRA Bifora radians Bieb. wild bishop 1/0
BINUN Bigelowia nudata (Michx.) DC. ssp. nudata pineland rayless goldenrod 1/0
CHNU6 Chondrophora nudata (Michx.) Britt.   0/1
BINU2 Bigelowia nuttallii L.C. Anders. Nuttall's rayless goldenrod 2/0
BIGNO Bignonia L. bignonia 3/0
BICA Bignonia capreolata L. crossvine 6/1
ANCA21 Anisostichus capreolata (L.) Bureau   0/1
BIJA Bischofia javanica Blume Javanese bishopwood 1/0
BIBI4 Bituminaria bituminosa (L.) Stirt. Arabian pea 1/0
PSBI Psoralea bituminosa L.   1/0
BIOR Bixa orellana L. lipsticktree 8/0
BLECH Blechnum L. midsorus fern 1/0
BLCH3 Blechnum chordatum (Desv.) Hieron. Chilean hard fern 2/0
BLSP Blechnum spicant (L.) Sm. deer fern 4/0
BLBA Blennosperma bakeri Heiser Baker's stickyseed 3/0
BLNA Blennosperma nanum (Hook.) Blake common stickyseed 2/0
BLBI Blepharidachne bigelovii (S. Wats.) Hack. Bigelow's desertgrass 2/1
BLKI Blepharidachne kingii (S. Wats.) Hack. King's eyelashgrass 0/1
BLSC Blepharipappus scaber Hook. rough eyelashweed 3/0
BLTR Blepharoneuron tricholepis (Torr.) Nash pine dropseed 3/1
BLTR2 Blepharostoma trichophyllum (L.) Dumort. 4/0
BLCI Blephilia ciliata (L.) Benth. downy pagoda-plant 4/1
BLHI Blephilia hirsuta (Pursh) Benth. hairy pagoda-plant 1/1
BLSA2 Blighia sapida Koenig akee 2/0
BLAC70 Blindia acuta (Hedw.) Bruch & Schimp. in B.S.G. acute blindia moss 3/0
BLCR Bloomeria crocea (Torr.) Coville common goldenstar 4/0
BLCRC Bloomeria crocea (Torr.) Coville var. crocea common goldenstar 2/0
BLHU Bloomeria humilis Hoover dwarf goldenstar 1/0
BLRU Blysmus rufus (Huds.) Link red bulrush    
SCRU2 Scirpus rufus (Huds.) Schrad.   0/1
BOFR2 Bocconia frutescens L. parrotweed 1/0
BOCY Boehmeria cylindrica (L.) Sw. smallspike false nettle 7/2
BOCO Boerhavia coccinea P. Mill. scarlet spiderling 2/0
BOER Boerhavia erecta L. erect spiderling 1/0
BOSC Boerhavia scandens L. climbing wartclub 1/0
BOSP Boerhavia spicata Choisy creeping spiderling    
BOTO2 Boerhavia torreyana (S. Wats.) Standl.   2/0
BOAS Boltonia asteroides (L.) L'Hér. white doll's daisy 3/2
BOASL Boltonia asteroides (L.) L'Hér. var. latisquama (Gray) Cronq. white doll's daisy    
BOLA3 Boltonia latisquama Gray   0/1
BODE2 Boltonia decurrens (Torr. & Gray) Wood claspingleaf doll's daisy 3/1
BODI Boltonia diffusa Ell. smallhead doll's daisy 2/1
BOMAR Bomarea Mirb. bomarea 1/0
BOCE2 Bombax ceiba L. red silk cottontree 3/0
BOCAC Bombycilaena californica (Fisch. & C.A. Mey.) Holub var. californica q tips    
MICAC2 Micropus californicus Fisch. & C.A. Mey. var. californicus Fisch. & C.A. Mey. [superfluous autonym]   3/0
BOHI Bommeria hispida (Mett. ex Kuhn) Underwood copper fern 5/0
BODA Bontia daphnoides L. white alling 1/0
BOOF Borago officinalis L. common borage 5/1
BOFL2 Borassus flabellifer L. [excluded] toddy palm 1/0
BOFU Borinda fungosa (T.P. Yi) C.M.A. Stapleton Himalayan foothill borinda 1/0
BOAR2 Borrichia arborescens (L.) DC. tree seaside tansy 3/0
BOFR Borrichia frutescens (L.) DC. bushy seaside tansy 4/1
BORZI Borzicactus Riccob. borzicactus 3/0
BOHO Boschniakia hookeri Walp. Vancouver groundcone 1/0
BOST2 Boschniakia strobilacea Gray California groundcone 4/0
BOTHR Bothriochloa Kuntze beardgrass 1/0
BOAL3 Bothriochloa alta (A.S. Hitchc.) Henr. tall beardgrass 2/0
BOBA3 Bothriochloa barbinodis (Lag.) Herter cane bluestem 3/0
ANBA6 Andropogon barbinodis Lag.   1/1
ANPE14 Andropogon perforatus Trin. ex Fourn.   2/1
BOBL Bothriochloa bladhii (Retz.) S.T. Blake Caucasian bluestem 1/0
ANIN7 Andropogon intermedius R. Br.   2/0
BOIN80 Bothriochloa intermedia (R. Br.) A. Camus   2/0
BOED Bothriochloa edwardsiana (Gould) Parodi Edwards Plateau beardgrass 1/0
BOEX Bothriochloa exaristata (Nash) Henr. awnless beardgrass    
ANEX3 Andropogon exaristatus (Nash) A.S. Hitchc.   2/1
BOHA Bothriochloa hassleri (Hack.) Cabrera   2/0
BOHY Bothriochloa hybrida (Gould) Gould hybrid beardgrass 2/0
BOIN6 Bothriochloa insculpta (Hochst.) A. Camus [excluded] sweetpitted grass 2/0
BOIS Bothriochloa ischaemum (L.) Keng yellow bluestem 3/0
BOLA2 Bothriochloa laguroides (DC.) Herter silver beardgrass 3/0
BOLAT Bothriochloa laguroides (DC.) Herter ssp. torreyana (Steud.) Allred & Gould silver beardgrass 1/0
BOLO Bothriochloa longipaniculata (Gould) Allred & Gould longspike beardgrass 1/0
BOPE2 Bothriochloa pertusa (L.) A. Camus pitted beardgrass 1/0
BOSA Bothriochloa saccharoides (Sw.) Rydb. silver bluestem 1/0
AMSA3 Amphilophis saccharoides (Sw.) Nash   0/1
ANSA5 Andropogon saccharoides Sw.   0/1
BOWR2 Bothriochloa wrightii (Hack.) Henr. Wright's beardgrass    
ANWR5 Andropogon wrightii Hack.   0/1
BODI2 Botrychium dissectum Spreng. cutleaf grapefern 0/1
BOOB Botrychium obliquum Muhl. ex Willd.   1/1
BOLA Botrychium lanceolatum (Gmel.) Angstr. lanceleaf grapefern 2/2
BOLU Botrychium lunaria (L.) Sw. common moonwort 1/2
BOON2 Botrychium onondagense Underwood   0/1
BOMA2 Botrychium matricariifolium (A. Braun ex Dowell) A. Braun ex Koch matricary grapefern 0/1
BOMI Botrychium minganense Victorin Mingan moonwort 1/0
BOMU Botrychium multifidum (Gmel.) Trev. leathery grapefern 5/0
BOMA6 Botrychium matricariae (Schrank) Spreng.   0/1
BOSI3 Botrychium silaifolium K. Presl   0/1
BOPI Botrychium pinnatum St. John northern moonwort 2/0
BOSI Botrychium simplex E. Hitchc. little grapefern 0/1
BOTE10 Botrychium tenebrosum A.A. Eat.   0/1
BOTU3 Botrychium tunux Stensvold & Farrar 1/0
BOVI Botrychium virginianum (L.) Sw. rattlesnake fern 7/2
BOYA Botrychium yaaxudakeit Stensvold & Farrar 1/0
BOUGA Bougainvillea Comm. ex Juss. bougainvillea 15/0
BOGL4 Bougainvillea glabra Choisy paperflower 2/0
BOSP6 Bougainvillea spectabilis Willd. great bougainvillea 1/0
BOSU2 Bourreria succulenta Jacq. bodywood 6/0
BOOV Bourreria ovata Miers   2/0
BOUTE Bouteloua Lag. grama 1/0
BOAR Bouteloua aristidoides (Kunth) Griseb. needle grama 2/1
BOBA2 Bouteloua barbata Lag. sixweeks grama 3/1
BOBR Bouteloua breviseta Vasey gypsum grama 0/1
BOCH Bouteloua chondrosioides (Kunth) Benth. ex S. Wats. sprucetop grama 0/1
BOCU Bouteloua curtipendula (Michx.) Torr. sideoats grama 9/1
BOCUC2 Bouteloua curtipendula (Michx.) Torr. var. curtipendula sideoats grama    
ATCU2 Atheropogon curtipendulus (Michx.) Fourn.   0/1
BODA2 Bouteloua dactyloides (Nutt.) J.T. Columbus buffalograss    
BUDA Buchloe dactyloides (Nutt.) Engelm.   2/1
BUDA3 Bulbilis dactyloides (Nutt.) Raf. ex Kuntze   0/1
BODI6 Bouteloua dimorpha J.T. Columbus Acapulco grass    
OPST4 Opizia stolonifera J. Presl   1/0
BOEL Bouteloua eludens Griffiths Santa Rita Mountain grama 0/1
BOER4 Bouteloua eriopoda (Torr.) Torr. black grama 4/1
BOGR2 Bouteloua gracilis (Willd. ex Kunth) Lag. ex Griffiths blue grama 5/1
BOOL Bouteloua oligostachya (Nutt.) Torr. ex Gray   0/1
BOHI2 Bouteloua hirsuta Lag. hairy grama 2/2
BOHIH Bouteloua hirsuta Lag. var. hirsuta hairy grama    
BOGL5 Bouteloua glandulosa (Cerv.) Swallen   0/1
BOPA2 Bouteloua parryi (Fourn.) Griffiths Parry's grama 0/1
BORA Bouteloua radicosa (Fourn.) Griffiths purple grama 0/1
BORE2 Bouteloua repens (Kunth) Scribn. & Merr. slender grama    
BOFI2 Bouteloua filiformis (Fourn.) Griffiths   2/1
BOHE4 Bouteloua heterostega (Trin.) Griffiths   2/0
BORI Bouteloua rigidiseta (Steud.) A.S. Hitchc. Texas grama 0/1
BORO2 Bouteloua rothrockii Vasey Rothrock's grama 1/1
BOSI2 Bouteloua simplex Lag. matted grama 0/1
BOTR2 Bouteloua trifida Thurb. red grama 0/1
BOUN Bouteloua uniflora Vasey oneflower grama 0/1
BOWA Bouteloua warnockii Gould & Kapadia Warnock's grama 1/0
BOTE2 Bouvardia ternifolia (Cav.) Schlecht. firecrackerbush 10/0
BOIN3 Bowlesia incana Ruiz & Pavón hoary bowlesia 2/0
BOAC Boykinia aconitifolia Nutt. Allegheny brookfoam    
THAC2 Therofon aconitifolium (Nutt.) Millsp.   0/1
BRER Brachiaria eruciformis (Sm.) Griseb. sweet signalgrass 0/1
BRAC7 Brachychiton acerifolius (A. Cunn. ex G. Don) Macarthur flame bottletree 1/0
BRTR4 Brachydontium trichodes (Web.) Milde brachydontium moss 5/0
BRER2 Brachyelytrum erectum (Schreb. ex Spreng.) Beauv. bearded shorthusk 3/2
BRACH3 Brachypodium Beauv. false brome 1/0
BRDI2 Brachypodium distachyon (L.) Beauv. purple false brome 1/1
BRPH3 Brachypodium phoenicoides (L.) Roemer & J.A. Schultes thinleaf false brome 2/0
BRPI Brachypodium pinnatum (L.) Beauv. heath false brome 2/0
BRSY Brachypodium sylvaticum (Huds.) Beauv. slender false brome 2/0
BRGL2 Brachythecium glaciale Schimp. in B.S.G. glacier brachythecium moss 5/0
BRNE4 Brachythecium nelsonii Grout Nelson's brachythecium moss    
BRLA13 Brachythecium latifolium Kindb.   2/0
BRPL5 Brachythecium plumosum (Hedw.) Schimp. in B.S.G. brachythecium moss 4/0
BRPO4 Brachythecium populeum (Hedw.) Schimp. in B.S.G. brachythecium moss 5/0
BRRE7 Brachythecium reflexum (Starke in Web. & Mohr) Schimp. in B.S.G. brachythecium moss 3/0
BRRI5 Brachythecium rivulare Schimp. in B.S.G. brachythecium moss 4/0
BRRU5 Brachythecium rutabulum (Hedw.) Schimp. in B.S.G. brachythecium moss 5/0
BRSA7 Brachythecium salebrosum (Web. & Mohr) Schimp. in B.S.G. brachythecium moss 4/0
BRST4 Brachythecium starkei (Brid.) Schimp. in B.S.G. Starke's brachythecium moss 4/0
BRTR5 Brachythecium trachypodium (Brid.) Schimp. in B.S.G. brachythecium moss 4/0
BRVE7 Brachythecium velutinum (Hedw.) Schimp. in B.S.G. brachythecium moss 6/0
BRBR15 Bracteantha bracteata (Vent.) A. Anderb. & Heagi bracted strawflower    
HEBR6 Helichrysum bracteatum (Vent.) Andr.   1/0
BRSC Brasenia schreberi J.F. Gmel. watershield 3/2
BRBR6 Brasiliopuntia brasiliensis (Willd.) Berger Brazilian pricklypear 2/0
BRASS4 Brassia R. Br. ex Ait. f. brassia 1/0
BRGI3 Brassia gireoudiana Rchb. F. & Warsz. 1/0
BRASS2 Brassica L. mustard 1/0
BRJU Brassica juncea (L.) Czern. India mustard 2/1
BRNI Brassica nigra (L.) W.D.J. Koch black mustard 2/1
BRRA Brassica rapa L. field mustard 2/0
BRRAR Brassica rapa L. var. rapa field mustard    
BRCA2 Brassica campestris L.   1/1
BRTO Brassica tournefortii Gouan Asian mustard 3/0
BRCA3 Brickellia californica (Torr. & Gray) Gray California brickellbush 5/0
BRDE3 Brickellia desertorum Coville desert brickellbush 2/0
BREUE Brickellia eupatorioides (L.) Shinners var. eupatorioides false boneset 1/0
KUEU Kuhnia eupatorioides L.   1/1
KUGL Kuhnia glutinosa Ell.   0/1
BRGR Brickellia grandiflora (Hook.) Nutt. tasselflower brickellbush 3/0
COGR14 Coleosanthus grandiflorus (Hook.) Kuntze   0/1
BRLA Brickellia laciniata Gray splitleaf brickellbush 2/0
BRLE Brickellia lemmonii Gray Lemmon's brickellbush 2/0
BRRU Brickellia rusbyi Gray stinking brickellbush 3/0
BRIN4 Brighamia insignis Gray cabbage on a stick 3/0
BRIZA Briza L. quakinggrass 1/0
BRHU4 Briza humilis M. Bieb. quakinggrass 2/0
BRMA Briza maxima L. big quakinggrass 6/1
BRME Briza media L. perennial quakinggrass 3/2
BRMI2 Briza minor L. little quakinggrass 2/2
BRODI Brodiaea Sm. brodiaea 2/0
BRCO3 Brodiaea coronaria (Salisb.) Engl. crown brodiaea 1/0
BREL Brodiaea elegans Hoover harvest brodiaea 3/0
BRFI Brodiaea filifolia S. Wats. threadleaf brodiaea 2/0
BRJO Brodiaea jolonensis Eastw. chaparral brodiaea 3/0
BRTEK Brodiaea terrestris Kellogg ssp. kernensis (Hoover) Niehaus Kern brodiaea 3/0
BRTET Brodiaea terrestris Kellogg ssp. terrestris dwarf brodiaea 3/0
BRCOM Brodiaea coronaria (Salisb.) Engl. var. macropoda (Torr.) Hoover   1/0
BRPI4 Bromelia pinguin L. pinguin 5/0
BROMU Bromus L. brome 1/0
BRAL6 Bromus aleutensis Trin. ex Griseb. Aleutian brome 0/1
BRAN Bromus anomalus Rupr. ex Fourn. nodding brome 2/1
BRAR3 Bromus arenarius Labill. Australian brome 1/1
BRAR5 Bromus arvensis L. field brome 1/2
BRJA Bromus japonicus Thunb. ex Murr.   3/2
BRPA10 Bromus patulus Mert. & Koch   0/1
BRBE6 Bromus berteroanus Colla Chilean chess    
BRTR2 Bromus trinii Desv.   1/1
BRBR5 Bromus briziformis Fisch. & C.A. Mey. rattlesnake brome 1/0
BRBR7 Bromus brizaeformis Fischer & C. Meyer [orthographic variant]   0/2
BRCA5 Bromus carinatus Hook. & Arn. California brome 4/1
BRCA6 Bromus catharticus Vahl rescuegrass 3/1
BRBR81 Bromus brevis Nees ex Steud.   1/0
BRUN Bromus unioloides Kunth   1/1
BRCI2 Bromus ciliatus L. fringed brome 1/3
BRCIC3 Bromus ciliatus L. var. ciliatus fringed brome    
BRDU2 Bromus dudleyi Fern.   1/0
BRDIR Bromus diandrus Roth ssp. rigidus (Roth) Lainz ripgut brome    
BRRI8 Bromus rigidus Roth   1/1
BRER3 Bromus erectus Huds. erect brome 1/1
BRFR2 Bromus frondosus (Shear) Woot. & Standl. weeping brome 2/1
BRGR4 Bromus grandis (Shear) A.S. Hitchc. tall brome 0/1
BRHO2 Bromus hordeaceus L. soft brome 1/1
BRHOD Bromus hordeaceus L. ssp. divaricatus (Bonnier & Layens) Kerguélen soft brome    
BRMO Bromus molliformis Lloyd   0/1
BRHOH Bromus hordeaceus L. ssp. hordeaceus soft brome    
BRMO2 Bromus mollis auct. non L. [misapplied]   0/1
BRIN2 Bromus inermis Leyss. smooth brome 5/2
BRINP5 Bromus inermis Leyss. ssp. pumpellianus (Scribn.) Wagnon var. pumpellianus (Scribn.) C.L. Hitchc. Pumpelly's brome    
BRPU3 Bromus pumpellianus Scribn.   0/1
BRKA2 Bromus kalmii Gray arctic brome 0/3
BRPU4 Bromus purgens   0/1
BRLA3 Bromus laevipes Shear Chinook brome 0/1
BRLA4 Bromus latiglumis (Shear) A.S. Hitchc. earlyleaf brome 0/2
BRPU10 Bromus purgans auct. non L. [misapplied]   0/1
BRMA3 Bromus madritensis L. compact brome 0/2
BRMA4 Bromus marginatus Nees ex Steud. mountain brome 0/1
BRBR4 Bromus breviaristatus Buckl.   0/2
BRNO Bromus nottowayanus Fern. Nottoway Valley brome 0/1
BROR2 Bromus orcuttianus Vasey Orcutt's brome 0/1
BRPA3 Bromus pacificus Shear Pacific brome 0/1
BRPO Bromus polyanthus Scribn. Great Basin brome 0/1
BRPO2 Bromus porteri (Coult.) Nash Porter brome 0/1
BRRA2 Bromus racemosus L. bald brome 0/2
BRCO4 Bromus commutatus Schrad.   0/1
BRRA3 Bromus ramosus Huds. hairy brome 2/0
BRAS Bromus asper Murr.   0/1
BRRU2 Bromus rubens L. red brome 1/1
BRSC3 Bromus scoparius L. broom brome 2/0
BRSE Bromus secalinus L. rye brome 1/2
BRSI Bromus sitchensis Trin. Alaska brome 2/1
BRSQ2 Bromus squarrosus L. corn brome 2/2
BRST3 Bromus stamineus Desv. roadside brome 1/0
BRST2 Bromus sterilis L. poverty brome 1/2
BRSU2 Bromus suksdorfii Vasey Suksdorf's brome 0/1
BRTE Bromus tectorum L. cheatgrass 6/2
BRTE2 Bromus texensis (Shear) A.S. Hitchc. Texas brome 0/1
BRVU Bromus vulgaris (Hook.) Shear Columbia brome 0/1
BRMI4 Brongniartia minutifolia S. Watson littleleaf greentwig 1/0
BRPA4 Broussonetia papyrifera (L.) L'Hér. ex Vent. paper mulberry 4/0
PAPA32 Papyrius papyriferus (L.) Kuntze   0/1
BRVO2 Bruchia vogesiaca Nestl. ex Schwaegr. bruchia moss 5/0
BRCA31 Brugmansia ×candida Pers. (pro sp.) [aurea × versicolor] angel's-trumpet    
BRCA12 Brugmansia candida Pers. [hybrid]   1/0
BRSA3 Brugmansia sanguinea (Ruiz & Pavon) D. Don red floripontio 5/0
DASA3 Datura sanguinea Ruiz & Pavón   3/0
BRSU3 Brugmansia suaveolens (Humb. & Bonpl. ex Willd.) Bercht. & K. Presl angel's-tears    
DASU Datura suaveolens Humb. & Bonpl. ex Willd.   5/0
BRUGU Bruguiera Savigny bruguiera 1/0
BRSE11 Bruguiera sexangula (Lour.) Poir. Oriental mangrove    
BRGY Bruguiera gymnorrhiza (L.) Lam. [orthographic variant]   4/0
BRCO6 Brunellia comocladiifolia Humb. & Bonpl. West Indian sumac 1/0
BRUNF2 Brunfelsia L. raintree 3/0
BRPA17 Brunfelsia pauciflora (Cham. & Schltdl.) Benth. 2/0
BROV4 Brunnichia ovata (Walt.) Shinners American buckwheat vine 0/1
BRCI3 Brunnichia cirrhosa Gaertn.   0/1
BREB Brya ebenus (L.) DC. ebony coccuswood 1/0
BRAL4 Bryonia alba L. white bryony 1/0
BRAL12 Bryum algovicum Sendtn. ex C. Müll. bryum moss 2/0
BRAL9 Bryum alpinum Huds. ex With. alpine bryum moss 4/0
BRAM70 Bryum amblyodon C. Müll. bryum moss    
BRIN70 Bryum inclinatum (Brid.) Bland.   6/0
BRAR70 Bryum arcticum (R. Br.) Bruch & Schimp. in B.S.G. arctic bryum moss 1/0
BRAR71 Bryum argenteum Hedw. silvergreen bryum moss 6/0
BRARL Bryum argenteum Hedw. var. lanatum (P. Beauv.) Hampe   1/0
BRBO3 Bryum bornholmense Winkelm. & Ruthe Bornholm's bryum moss 4/0
BRCA71 Bryum caespiticium Hedw. dry calcareous bryum moss 6/0
BRCA25 Bryum capillare Hedw. bryum moss 6/0
BRCAC4 Bryum capillare Hedw. var. capillare bryum moss    
BREL3 Bryum elegans Nees in Brid.   5/0
BRTO3 Bryum torquescens Bruch   1/0
BRCY70 Bryum cyclophyllum (Schwaegr.) Bruch & Schimp. in B.S.G. bryum moss 1/0
BRDI12 Bryum dichotomum Hedw. bryum moss    
BRBI6 Bryum bicolor Dicks.   5/0
BRGE3 Bryum gemmilucens Wilcz. & Dem. bryum moss 2/0
BRKN2 Bryum knowltonii Barnes Knowlton's bryum moss 1/0
BRMU6 Bryum muehlenbeckii Bruch & Schimp. in B.S.G. Muehlenbeck's bryum moss 3/0
BRPA70 Bryum pallens (Brid.) Sw. in R?hl. bryum moss 4/0
BRPA14 Bryum pallescens Schleich. ex Schwaegr. bryum moss 5/0
BRPS70 Bryum pseudotriquetrum (Hedw.) Gaertn. et. al. common green bryum moss 6/0
BRNE5 Bryum neodamense Itzig in C. Müll.   1/0
BRRA6 Bryum radiculosum Brid. bryum moss 6/0
BRRU6 Bryum rubens Mitt. bryum moss 4/0
BRSC7 Bryum schleicheri Schwaegr. Schleicher's bryum moss 7/0
BRSU9 Bryum subapiculatum Hampe bryum moss    
BRMI12 Bryum microerythrocarpum C. Müll. & Kindb. in Mac. & Kindb.   3/0
BRTU2 Bryum turbinatum (Hedw.) Turn. bryum moss 1/0
BRWA2 Bryum warneum (R?hl.) Bland. ex Brid. bryum moss 1/0
BRWE70 Bryum weigelii Spreng. in Biehler Weigel's bryum moss 4/0
BULA8 Buchanania latifolia Roxb. chirauli nut 1/0
BUTE4 Buchenavia tetraphylla (Aubl.) Howard fourleaf buchenavia 1/0
BUAM Buchnera americana L. American bluehearts 4/1
BUFL Buchnera floridana Gandog.   1/0
BUBU Bucida buceras L. gregorywood 5/0
BUMO Bucida molinetii (G. Maza) Alain spiny bucida 4/0
BUDA2 Buddleja davidii Franch. orange eye butterflybush 5/0
BUGL6 Buddleja globosa Hope orange-ball-tree 1/0
BUUT Buddleja utahensis Coville Utah butterflybush 4/0
BUAR3 Buglossoides arvensis (L.) I.M. Johnston corn gromwell 1/0
LIAR4 Lithospermum arvense L.   1/1
BULBO Bulbostylis Kunth hairsedge 1/0
BUCAC Bulbostylis capillaris (L.) Kunth ex C.B. Clarke ssp. capillaris densetuft hairsedge    
STCA17 Stenophyllus capillaris (L.) Britt.   0/1
BUAR5 Bulnesia arborea (Jacq.) Engl. maracaibo lignumvitae 1/0
BUGL Bunchosia glandulosa (Cav.) DC. cafe forastero 2/0
BUER Bunias erucago L. crested wartycabbage 1/0
BUSA7 Buphthalmum salicifolium L. ox-eye 1/0
BURO Bupleurum rotundifolium L. hare's ear 1/1
BUBI Burmannia biflora L. northern bluethread 0/1
BUFL2 Burmannia flava Mart. Fahkahatchee bluethread 1/0
BUFA Bursera fagaroides (Kunth) Engl. fragrant bursera 1/0
BUSI Bursera simaruba (L.) Sarg. gumbo limbo 10/0
BUMO5 Butea monosperma (Lam.) Taubert Bengal kino 1/0
BUCA15 Butia capitata (Mart.) Becc. South American jelly palm 4/0
BUTOM Butomus L. butomus 2/0
BUUM Butomus umbellatus L. flowering rush 4/0
BUHI2 Buttonia hildebrandtii Engl. 1/0
BUAP70 Buxbaumia aphylla Hedw. buxbaumia moss 4/0
BUVI2 Buxbaumia viridis (DC.) Moug. & Nestl. buxbaumia moss 1/0
BUBA6 Buxus balearica Lam. 1/0
BUSE2 Buxus sempervirens L. common box 1/0
BUVA Buxus vahlii Baill. Vahl's box 2/0
BYLU Byrsonima lucida (P. Mill.) DC. Long Key locustberry 2/0
BYSP Byrsonima spicata (Cav.) Kunth doncella 3/0
BYWA Byrsonima wadsworthii Little almendrillo 1/0
CACA Cabomba caroliniana Gray Carolina fanwort 2/1
CAFA4 Cadaba farinosa Forsskal cadaba 2/0
CAELO2 Caelogyne Lindl. caelogyne 1/0
CABO6 Caesalpinia bonduc (L.) Roxb. yellow nicker 6/0
CACR28 Caesalpinia crista auct. non L.   2/0
CACI19 Caesalpinia ciliata (Bergius ex Wikstr.) Urban mato 3/0
CAME15 Caesalpinia melanosperma (Eggers) Urb.   1/0
CACO28 Caesalpinia coriaria (Jacq.) Willd. divi divi 3/0
CADE15 Caesalpinia decapetala (Roth) Alston shoofly 2/0
CASE15 Caesalpinia sepiaria Roxb.   1/0
CAGI Caesalpinia gilliesii (Wallich ex Hook.) Wallich ex D. Dietr. bird-of-paradise shrub 4/0
CAKA5 Caesalpinia kavaiensis Mann uhiuhi    
MEKA Mezonevron kavaiense (Mann) Hbd.   1/0
CAME Caesalpinia mexicana A. Gray Mexican holdback 1/0
CAPA34 Caesalpinia pauciflora (Griseb.) C. Wright ex Sauvalle fewflower holdback 1/0
CAPU13 Caesalpinia pulcherrima (L.) Sw. pride-of-Barbados 8/0
CASA28 Caesalpinia sappan L. sappanwood 1/0
CASP11 Caesalpinia spinosa (Molina) Kuntze spiny holdback 1/0
CACA27 Cajanus cajan (L.) Millsp. pigeonpea 1/0
CAIN44 Cajanus indicus Spreng.   1/0
CASC33 Cajanus scarabaeoides (L.) Thouars showy pigeonpea 2/0
CAED Cakile edentula (Bigelow) Hook. American searocket 3/1
CALA2 Cakile lanceolata (Willd.) O.E. Schulz coastal searocket 4/0
CAMA Cakile maritima Scop. European searocket 3/0
CAAC19 Calamagrostis ×acutiflora (Schrad.) Rchb. feather reed grass    
CAAC17 Calamagrostis ×acutifolia (Schrad.) Rchb. [orthographic error]   1/0
CABO Calamagrostis bolanderi Thurb. Bolander's reedgrass 0/1
CABR Calamagrostis breweri Thurb. shorthair reedgrass 0/1
CACA2 Calamagrostis cainii A.S. Hitchc. Cain's reedgrass 0/1
CACA4 Calamagrostis canadensis (Michx.) Beauv. bluejoint 3/3
CACAC10 Calamagrostis canadensis (Michx.) Beauv. var. canadensis bluejoint    
CASC2 Calamagrostis scribneri Beal   0/1
CACAL3 Calamagrostis canadensis (Michx.) Beauv. var. langsdorfii (Link) Inman bluejoint    
CACAS Calamagrostis canadensis (Michx.) Beauv. var. scabra (J. Presl) A.S. Hitchc.   0/1
CALA3 Calamagrostis ×lactea Beal (pro sp.) [not hybrid]   0/1
CALA43 Calamagrostis langsdorfii (Link) Trin.   0/1
CANU6 Calamagrostis nubila Louis-Marie   0/1
CACAM Calamagrostis canadensis (Michx.) Beauv. var. macouniana (Vasey) Stebbins Macoun's reedgrass 0/1
CAMA28 Calamagrostis macouniana (Vasey) Vasey   0/1
CACO71 Calamagrostis coarctata (Torr.) Eat. arctic reedgrass 0/1
CACI Calamagrostis cinnoides W. Bart. nom. superfl.   3/2
CAEP Calamagrostis epigeios (L.) Roth chee reedgrass 0/1
CAFO Calamagrostis foliosa Kearney leafy reedgrass 1/1
CAHO2 Calamagrostis howellii Vasey Howell's reedgrass 0/1
CAKO Calamagrostis koelerioides Vasey fire reedgrass 0/1
CADE2 Calamagrostis densa Vasey   0/1
CALA6 Calamagrostis lapponica (Wahlenb.) Hartman lapland reedgrass 1/0
CAMO Calamagrostis montanensis Scribn. ex Vasey plains reedgrass 0/1
CANU Calamagrostis nutkaensis (J. Presl) J. Presl ex Steud. Pacific reedgrass 0/1
CAOP2 Calamagrostis ophitidis (J.T. Howell) Nygren serpentine reedgrass 4/0
CAPE10 Calamagrostis perplexa Scribn. wood reedgrass 0/2
CAPI Calamagrostis pickeringii Gray Pickering's reedgrass 0/2
CAPO3 Calamagrostis porteri Gray Porter's reedgrass 0/2
CAPOI Calamagrostis porteri Gray ssp. insperata (Swallen) C.W. Greene Porter's reedgrass 2/0
CAIN16 Calamagrostis insperata Swallen   0/1
CAPU Calamagrostis purpurascens R. Br. purple reedgrass 0/1
CAPUP7 Calamagrostis purpurascens R. Br. var. purpurascens purple reedgrass    
DECO Deschampsia congestiformis Booth   0/1
CARU Calamagrostis rubescens Buckl. pinegrass 0/1
CASC Calamagrostis scopulorum M.E. Jones ditch reedgrass 0/1
CASTI3 Calamagrostis stricta (Timm) Koel. ssp. inexpansa (Gray) C.W. Greene northern reedgrass    
CACA3 Calamagrostis californica Kearney   0/1
CACR Calamagrostis crassiglumis Thurb.   0/1
CAFE Calamagrostis fernaldii Louis-Marie   0/1
CAHYA Calamagrostis hyperborea Lange var. americana (Vasey) Kearney   0/1
CAIN Calamagrostis inexpansa Gray   3/2
CALA29 Calamagrostis labradorica Kearney   0/1
CALA47 Calamagrostis lacustris (Kearney) Nash   0/2
CASTS8 Calamagrostis stricta (Timm) Koel. ssp. stricta var. stricta slimstem reedgrass    
CANE Calamagrostis neglecta (Ehrh.) P.G. Gaertn., B. Mey. & Scherb.   1/2
CATW Calamagrostis tweedyi (Scribn.) Scribn. ex Vasey Tweedy's reedgrass 0/1
CANEN Calamintha nepeta (L.) Savi ssp. ?nepeta lesser calamint    
CLNE3 Clinopodium nepeta (L.) Kuntze   0/1
CAAR12 Calamovilfa arcuata K.E. Rogers Cumberland sandreed 3/0
CABR2 Calamovilfa brevipilis (Torr.) Scribn. pine barren sandreed 0/2
CACU Calamovilfa curtissii (Vasey) Scribn. Florida sandreed 0/1
CAGI3 Calamovilfa gigantea (Nutt.) Scribn. & Merr. giant sandreed 2/2
CALO Calamovilfa longifolia (Hook.) Scribn. prairie sandreed 3/2
CALAN Calandrinia Kunth redmaids 3/0
CACI2 Calandrinia ciliata (Ruiz & Pavón) DC. fringed redmaids 5/0
CACIM Calandrinia ciliata (Ruiz & Pavón) DC. var. menziesii (Hook.) J.F. Macbr.   2/0
CAMU26 Calceolaria multiflora Cav. slipper flower 5/0
CALEN Calendula L. marigold 2/0
CAAR Calendula arvensis L. field marigold 1/0
CAOF Calendula officinalis L. pot marigold 2/0
CAPA47 Calibrachoa parviflora (Juss.) D'Arcy seaside petunia    
PEPA14 Petunia parviflora Juss.   2/0
CAPA Calla palustris L. water arum 1/1
CAMA45 Callaeum macropterum (DC.) D.M. Johnson, nom. inq. hillyhock 1/0
CALLI Calliandra Benth. stickpea 2/0
CAER Calliandra eriophylla Benth. fairyduster 8/0
CAHA31 Calliandra haematocephala Hassk. stickpea 1/0
CAHA10 Calliandra haematomma (Bertero ex DC.) Benth. red powderpuff 1/0
CAHU Calliandra humilis Benth. dwarf stickpea 1/0
CAHUR Calliandra humilis Benth. var. reticulata (A. Gray) L.D. Benson dwarf stickpea    
CARE Calliandra reticulata A. Gray   1/0
CAAM2 Callicarpa americana L. American beautyberry 13/2
CAJA11 Callicarpa japonica Thunb. Japanese callicarpa 2/0
CACO70 Calliergon cordifolium (Hedw.) Kindb. calliergon moss 5/0
CAGI70 Calliergon giganteum (Schimp.) Kindb. giant calliergon moss 3/0
CARI70 Calliergon richardsonii (Mitt.) Kindb. in Warnst. Richardson's calliergon moss 3/0
CAST70 Calliergon stramineum (Brid.) Kindb. calliergon moss 1/0
CATR27 Calliergon trifarium (Web. & Mohr) Kindb. calliergon moss 3/0
CACU18 Calliergonella cuspidata (Hedw.) Loeske calliergonella moss 4/0
CAAL Callirhoe alcaeoides (Michx.) Gray light poppymallow 1/1
CADI2 Callirhoe digitata Nutt. winecup 1/1
CAIN2 Callirhoe involucrata (Torr. & Gray) Gray purple poppymallow 11/1
CALE2 Callirhoe leiocarpa R.F. Martin tall poppymallow 1/0
CAPA2 Callirhoe papaver (Cav.) Gray woodland poppymallow 1/0
CATR Callirhoe triangulata (Leavenworth) Gray clustered poppymallow 0/1
CAFR6 Callisia fragrans (Lindl.) Woods. basketplant 1/0
CAGR25 Callisia graminea (Small) G. Tucker grassleaf roseling    
CUGR2 Cuthbertia graminea Small   0/1
CARO18 Callisia rosea (Vent.) D.R. Hunt Piedmont roseling    
TRRO8 Tradescantia rosea Vent.   1/0
CACI15 Callistemon citrinus (Curtis) Skeels crimson bottlebrush 5/0
CAPA72 Callistemon pallidus (Bonpl.) DC. lemon bottlebrush 2/0
CASP30 Callistemon speciosus (Bonpl.) Sweet gray bottlebrush 1/0
CAHE2 Callitriche hermaphroditica L. northern water-starwort 1/1
CAAU15 Callitriche autumnalis L.   0/1
CAHE3 Callitriche heterophylla Pursh twoheaded water-starwort 2/2
CAPA52 Callitriche palustris L. vernal water-starwort 2/2
CAVE2 Callitriche verna L.   1/0
CATE19 Callitriche terrestris Raf. terrestrial water-starwort    
CAAU16 Callitriche austinii Engelm.   0/1
CAOB15 Callitris oblonga Rich. Pigmy cypress-pine 2/0
CAVU Calluna vulgaris (L.) Hull heather 4/1
CALOC2 Calocedrus Kurz incense cedar 1/2
CADE27 Calocedrus decurrens (Torr.) Florin incense cedar 18/0
LIDE Libocedrus decurrens Torr.   6/0
CALOC Calochortus Pursh mariposa lily 4/0
CAAL2 Calochortus albus Dougl. ex Benth. white fairy-lantern 7/0
CAAM3 Calochortus amabilis Purdy Diogenes' lantern 4/0
CAAM4 Calochortus ambiguus (M.E. Jones) Ownbey doubting mariposa lily 1/0
CAAM5 Calochortus amoenus Greene purple fairy-lantern 3/0
CAAR44 Calochortus argillosus (Hoover) R. Zebell & P. Fiedler clay mariposa lily 2/0
CAAU8 Calochortus aureus S. Wats. golden mariposa lily 5/0
CANUA Calochortus nuttallii Torr. & Gray var. aureus (S. Wats.) Ownbey   18/0
CABR4 Calochortus bruneaunis A. Nels. & J.F. Macbr. Bruneau mariposa lily 11/0
CACA5 Calochortus catalinae S. Wats. Santa Catalina mariposa lily 4/0
CACLC2 Calochortus clavatus S. Wats. var. clavatus clubhair mariposa lily 5/0
CACO3 Calochortus coeruleus (Kellogg) S. Watson beavertail grass    
CACA98 Calochortus caeruleus (Kellogg) S. Wats.   3/0
CAEU Calochortus eurycarpus S. Wats. white mariposa lily 1/0
CAEX2 Calochortus excavatus Greene Inyo County star-tulip 4/0
CAFL Calochortus flexuosus S. Wats. winding mariposa lily 11/0
CAGR Calochortus greenei S. Wats. Greene's mariposa lily 6/0
CAGU Calochortus gunnisonii S. Wats. Gunnison's mariposa lily 6/1
CAKE Calochortus kennedyi Porter desert mariposa lily 1/0
CALE3 Calochortus leichtlinii Hook. f. smokey mariposa 14/0
CALU9 Calochortus luteus Dougl. ex Lindl. yellow mariposa lily 2/0
CAMA5 Calochortus macrocarpus Dougl. sagebrush mariposa lily 1/0
CAMI Calochortus minimus Ownbey Sierra mariposa lily 1/0
CAMO3 Calochortus monophyllus (Lindl.) Lem. yellow star-tulip 3/0
CANU2 Calochortus nudus S. Wats. naked mariposa lily 3/0
CANU3 Calochortus nuttallii Torr. & Gray sego lily 13/1
CAOB Calochortus obispoensis J.G. Lemmon San Luis mariposa lily 4/0
CAPU2 Calochortus pulchellus Dougl. ex Benth. Mount Diablo fairy-lantern 1/0
CASP Calochortus splendens Dougl. ex Benth. splendid mariposa lily 17/0
CAST2 Calochortus striatus Parish alkali mariposa lily 6/0
CASU2 Calochortus subalpinus Piper subalpine mariposa lily 1/0
CASU3 Calochortus superbus Purdy ex J.T. Howell yellow mariposa 4/0
CATI3 Calochortus tiburonensis A.J. Hill Tiburon mariposa lily 3/0
CATO Calochortus tolmiei Hook. & Arn. Tolmie star-tulip 23/0
CAUM Calochortus umbellatus Wood Oakland mariposa lily 5/0
CAUN Calochortus uniflorus Hook. & Arn. Monterey mariposa lily 7/0
CAVE3 Calochortus venustus Dougl. ex Benth. butterfly mariposa lily 10/0
CAWE2 Calochortus westonii Eastw. Shirley Meadows mariposa lily 4/0
CAAN22 Calophyllum antillanum Britt. Antilles calophyllum 1/0
CAIN4 Calophyllum inophyllum L. Alexandrian laurel 2/0
CATO18 Caloplaca tominii Savicz Tolmin's orange lichen 3/0
CATR22 Caloplaca trachyphylla (Tuck.) Zahlbr. orange lichen 1/0
CAOK2 Calopogon oklahomensis D.H. Goldman Oklahoma grasspink 1/0
CATU5 Calopogon tuberosus (L.) Britton, Sterns & Poggenb. tuberous grasspink 2/0
CATUT Calopogon tuberosus (L.) B.S.P. var. tuberosus tuberous grasspink    
CAPU23 Calopogon pulchellus R. Br. ex Ait. f.   11/0
LITU4 Limodorum tuberosum L.   0/1
CACA42 Calopogonium caeruleum (Benth.) Suav. jicama 4/0
CAMU11 Calopogonium mucunoides Desv. calopo 1/0
CAQU10 Calothamnus quadrifidus R.Br. common netbush 2/0
CALOT Calotropis R. Br. calotropis 1/0
CAGI11 Calotropis gigantea (L.) Ait. f. giant milkweed 8/0
CAPR Calotropis procera (Ait.) Ait. f. roostertree 9/0
CALE4 Caltha leptosepala DC. white marsh marigold 9/0
CALEH2 Caltha leptosepala DC. ssp. howellii (Huth) P.G. Sm. Howell's marsh marigold    
CAHO17 Caltha howellii Huth   6/0
CALEL8 Caltha leptosepala DC. ssp. leptosepala var. leptosepala white marsh marigold    
PSLE Psychrophila leptosepala (DC.) W.A. Weber   4/0
CANA Caltha natans Pallas ex Georgi floating marsh marigold 0/1
CAPA5 Caltha palustris L. yellow marsh marigold 9/2
CAPAP6 Caltha palustris L. var. palustris yellow marsh marigold 1/0
CAPAF Caltha palustris L. var. flabellifolia (Pursh) Torr. & Gray   0/1
CAFR Calycadenia fremontii Gray Fremont's western rosinweed    
CACI4 Calycadenia ciliosa Greene   2/0
CAMU3 Calycadenia multiglandulosa DC. sticky western rosinweed 1/0
CALYC5 Calycanthus L. sweetshrub 1/0
CAFL22 Calycanthus floridus L. eastern sweetshrub 12/1
CAFLF Calycanthus floridus L. var. floridus eastern sweetshrub 1/0
CAFLG Calycanthus floridus L. var. glaucus (Willd.) Torr. & Gray eastern sweetshrub    
CAFE5 Calycanthus fertilis Walt.   1/1
CAOC5 Calycanthus occidentalis Hook. & Arn. western sweetshrub 14/0
CALY2 Calycocarpum lyonii (Pursh) Gray cupseed 1/2
CAPA7 Calycoseris parryi Gray yellow tackstem 2/0
CAWR Calycoseris wrightii Gray white tackstem 4/0
CALYL Calylophus Spach sundrops 1/0
CABEB2 Calylophus berlandieri Spach ssp. berlandieri Berlandier's sundrops 2/0
CAHAP Calylophus hartwegii (Benth.) Raven ssp. pubescens (Gray) Towner & Raven Hartweg's sundrops    
GAIN2 Galpinsia interior Small   0/1
OEGR5 Oenothera greggii Gray   3/0
OEGRP2 Oenothera greggii Gray var. pubescens Gray   12/0
CALA38 Calylophus lavandulifolius (Torr. & Gray) Raven lavenderleaf sundrops 1/0
GALA11 Galpinsia lavandulifolia (Torr. & Gray) Small   0/1
CASE12 Calylophus serrulatus (Nutt.) Raven yellow sundrops 1/0
MESE5 Meriolix serrulata (Nutt.) Walp.   0/1
CAFI12 Calypogeia fissa (L.) Raddi 3/0
CAIN40 Calypogeia integristipula Steph. 3/0
CAMU21 Calypogeia muelleriana (Schiffn.) Müll. Frib. 6/0
CANE27 Calypogeia neesiana (C. Massal. & Carestia) Müll. Frib. 2/0
CASU45 Calypogeia suecica (Arnell & J. Perss.) Müll. Frib. 5/0
CABU Calypso bulbosa (L.) Oakes fairy slipper 6/0
CABUA Calypso bulbosa (L.) Oakes var. americana (R. Br. ex Ait. f.) Luer fairy slipper    
CYBU5 Cytherea bulbosa (L.) House p.p.   0/1
CABUO Calypso bulbosa (L.) Oakes var. occidentalis (Holz.) Boivin fairy slipper 2/0
CAVI2 Calyptocarpus vialis Less. straggler daisy 2/0
CAKI Calyptranthes kiaerskovii Krug & Urban [excluded] Kiaerskov's lidflower 2/0
CATH3 Calyptranthes thomasiana Berg Thomas' lidflower 1/0
CALO12 Calystegia longipes (S. Wats.) Brummitt Paiute false bindweed    
COLO5 Convolvulus longipes S. Wats.   1/0
CAMA24 Calystegia macrostegia (Greene) Brummitt island false bindweed 2/0
CAMAA2 Calystegia macrostegia (Greene) Brummitt ssp. arida (Greene) Brummitt island false bindweed    
COAR11 Convolvulus aridus Greene   1/0
CAMAC Calystegia macrostegia (Greene) Brummitt ssp. cyclostegia (House) Brummitt island false bindweed 1/0
COCY5 Convolvulus cyclostegius House   1/0
CAOCO2 Calystegia occidentalis (Gray) Brummitt ssp. occidentalis var. occidentalis chaparral false bindweed    
COOC5 Convolvulus occidentalis Gray   1/0
CASE13 Calystegia sepium (L.) R. Br. hedge false bindweed 3/1
CASEA3 Calystegia sepium (L.) R. Br. ssp. angulata Brummitt hedge false bindweed 1/0
CASER Calystegia sepium (L.) R. Br. var. repens (L.) Gray   1/0
CORE5 Convolvulus repens L.   0/1
CASES Calystegia sepium (L.) R. Br. ssp. sepium hedge false bindweed 1/0
COSE14 Convolvulus sepium L.   2/1
CASIF Calystegia silvatica (Kit.) Griseb. ssp. fraterniflora (Mackenzie & Bush) Brummitt shortstalk false bindweed    
COFR7 Convolvulus fraterniflorus (Mackenzie & Bush) Mackenzie & Bush   0/1
CASO2 Calystegia soldanella (L.) R. Br. ex Roemer & J.A. Schultes seashore false bindweed 2/0
COSO4 Convolvulus soldanella L.   1/0
CASPS2 Calystegia spithamaea (L.) Pursh ssp. spithamaea low false bindweed    
COSP6 Convolvulus spithamaeus L.   0/1
CAST21 Calystegia stebbinsii Brummitt Stebbins' false bindweed 5/0
CASUE Calystegia subacaulis Hook. & Arn. ssp. episcopalis Brummitt hillside false bindweed 1/0
CASUS2 Calystegia subacaulis Hook. & Arn. ssp. subacaulis hillside false bindweed    
COSU9 Convolvulus subacaulis (Hook. & Arn.) Greene   1/0
CALE5 Camassia leichtlinii (Baker) S. Wats. large camas 1/0
CAQU2 Camassia quamash (Pursh) Greene small camas 6/0
CAQUB2 Camassia quamash (Pursh) Greene ssp. breviflora Gould small camas 2/0
CASC5 Camassia scilloides (Raf.) Cory Atlantic camas 10/1
QUHY2 Quamasia hyacinthina (Raf.) Britt.   0/1
CAMI2 Camelina microcarpa DC. littlepod false flax 1/1
CASA2 Camelina sativa (L.) Crantz gold-of-pleasure 0/1
CARE24 Camellia reticulata Lindl. to-tsubaki 3/0
CABI12 Camissonia bistorta (Nutt. ex Torr. & Gray) Raven southern suncup 2/0
CABO7 Camissonia boothii (Dougl. ex Lehm.) Raven Booth's evening-primrose 4/0
CABOD Camissonia boothii (Dougl. ex Lehm.) Raven ssp. decorticans (Hook. & Arn.) Raven shredding suncup    
OEDE5 Oenothera decorticans (Hook. & Arn.) Greene   2/0
CABR23 Camissonia brevipes (Gray) Raven yellow cups 4/0
CABRB4 Camissonia brevipes (Gray) Raven ssp. brevipes golden suncup    
OEBR5 Oenothera brevipes Gray   3/0
CACA32 Camissonia californica (Nutt. ex Torr. & Gray) Raven California suncup 2/0
CACA33 Camissonia campestris (Greene) Raven Mojave suncup 2/0
CACA34 Camissonia cardiophylla (Torr.) Raven heartleaf suncup 2/0
CACH13 Camissonia cheiranthifolia (Hornem. ex Spreng.) Raimann beach suncup 2/0
CACHC Camissonia cheiranthifolia (Hornem. ex Spreng.) Raimann ssp. cheiranthifolia beach suncup 2/0
OECH5 Oenothera cheiranthifolia Hornem. ex Spreng.   1/0
CACHS Camissonia cheiranthifolia (Hornem. ex Spreng.) Raimann ssp. suffruticosa (S. Wats.) Raven beach suncup 1/0
CACL4 Camissonia claviformis (Torr. & Frém.) Raven browneyes 4/0
CACO34 Camissonia contorta (Dougl. ex Lehm.) Kearney plains evening-primrose    
OECR2 Oenothera cruciata (S. Wats.) Munz   0/1
OEDE8 Oenothera dentata auct. non Cav. [misapplied]   2/0
CAEX10 Camissonia exilis (Raven) Raven Cottonwood Springs suncup 1/0
CAMI23 Camissonia minor (A. Nelson) P.H. Raven small evening primrose 3/0
CANE11 Camissonia nevadensis (Kellogg) Raven Nevada suncup 2/0
CAOV4 Camissonia ovata (Nutt. ex Torr. & Gray) Raven goldeneggs 2/0
OEOV2 Oenothera ovata Nutt. ex Torr. & Gray   2/0
CASU18 Camissonia subacaulis (Pursh) Raven diffuseflower evening-primrose 2/0
CATA2 Camissonia tanacetifolia (Torr. & Gray) Raven tansyleaf evening-primrose 7/0
CATAT Camissonia tanacetifolia (Torr. & Gray) Raven ssp. tanacetifolia tansyleaf evening-primrose 3/0
OETA3 Oenothera tanacetifolia Torr. & Gray   1/0
CAAP2 Campanula aparinoides Pursh marsh bellflower 4/2
CAUL3 Campanula uliginosa Rydb.   0/1
CACA37 Campanula carpatica Jacq. tussock bellflower 2/0
CADI3 Campanula divaricata Michx. small bonny bellflower 2/1
CAGL2 Campanula glomerata L. Dane's blood 2/1
CALA67 Campanula lanata Friv. woolly bellflower 1/0
CAME20 Campanula medium L. Canterbury bells 1/0
CAPA10 Campanula parryi A. Gray Parry's bellflower 1/0
CARA Campanula rapunculoides L. rampion bellflower 1/1
CARE3 Campanula reverchonii Gray basin bellflower 1/0
CARO2 Campanula rotundifolia L. bluebell bellflower 10/1
CASC7 Campanula scouleri Hook. ex A. DC. pale bellflower 8/0
CATR4 Campanula trachelium L. bats in the belfry 0/1
CAUN2 Campanula uniflora L. arctic bellflower 0/1
CAAM18 Campanulastrum americanum (L.) Small American bellflower 0/1
CAAM6 Campanula americana L.   6/1
CAMPS Campsis Lour. campsis 0/1
CARA2 Campsis radicans (L.) Seem. ex Bureau trumpet creeper 18/2
BIRA2 Bignonia radicans L.   0/1
CACH31 Campylium chrysophyllum (Brid.) J. Lange goldenleaf campylium moss 3/0
CAHA33 Campylium halleri (Hedw.) Lindb. Haller's campylium moss 4/0
CAPO17 Campylium polygamum (Schimp. in B.S.G.) C. Jens. campylium moss 3/0
CAST51 Campylium stellatum (Hedw.) C. Jens. star campylium moss 4/0
CASTP Campylium stellatum (Hedw.) C. Jens. var. protensum (Brid.) Bryhn star campylium moss 5/0
CAAT16 Campylopus atrovirens De Not. campylopus moss 3/0
CAFL35 Campylopus flexuosus (Hedw.) Brid. campylopus moss 6/0
CAFR19 Campylopus fragilis (Brid.) Bruch & Schimp. in B.S.G. fragile campylopus moss 3/0
CAIN45 Campylopus introflexus (Hedw.) Brid. campylopus moss 6/0
CAOE2 Campylopus oerstedianus (C. Müll.) Mitt. Oersted's campylopus moss 2/0
CAPI17 Campylopus pilifer Brid. campylopus moss 4/0
CAPY9 Campylopus pyriformis (Schultz) Brid. campylopus moss 4/0
CASA30 Campylostelium saxicola (Web. & Mohr) Bruch & Schimp. in B.S.G. campylostelium moss 2/0
CAMO32 Canadanthus modestus (Lindl.) Nesom giant mountain aster    
ASMO3 Aster modestus Lindl.   0/1
CAOD Cananga odorata (Lam.) Hook. f. & T. Thomson ilang-ilang 5/0
CAAB14 Canarina abyssinica Engl. 1/0
CANAV Canavalia Adans. jackbean 1/0
CABR21 Canavalia brasiliensis Mart. ex Benth. Brazilian jackbean 1/0
CACA29 Canavalia cathartica Thouars maunaloa 1/0
CAEN4 Canavalia ensiformis (L.) DC. wonderbean 1/0
CAGL15 Canavalia gladiata (Jacq.) DC. sword jackbean 1/0
CANI7 Canavalia nitida (Cav.) Piper Bahama baybean    
CARU13 Canavalia rusiosperma Urb.   1/0
CAPL16 Canavalia plagiosperma Piper obliqueseeded jackbean 1/0
CARO26 Canavalia rosea (Sw.) DC. baybean 4/0
CAMA6 Canavalia maritima Thouars   1/0
CAVI20 Canavalia virosa (Roxb.) Wight & Arn. jackbean 2/0
CAWI Canella winteriana (L.) Gaertn. wild cinnamon 5/0
CANNA2 Canna L. canna 1/0
CAFL11 Canna flaccida Salisb. bandanna of the Everglades 1/0
CAGE3 Canna ×generalis Bailey (pro sp.) [glauca × indica] canna lily 8/0
CAIN19 Canna indica L. Indian shot 1/0
CANNA Cannabis L. hemp 3/0
CASA3 Cannabis sativa L. marijuana 2/1
CAHO3 Canotia holacantha Torr. crucifixion thorn 3/0
CANTU Cantua Juss. ex Lam. cantua 1/0
CABI19 Cantua bicolor Lem. 1/0
CAPA11 Caperonia palustris (L.) St.-Hil. sacatrapo 2/0
CAPPA Capparis L. caper 2/0
CAAM13 Capparis amplissima Lam. burro blanco 2/0
CABA2 Capparis baducca L. caper 3/0
CACA99 Capparis cartilaginea Decne. 1/0
CACY Capparis cynophallophora L. Jamaican caper 6/0
CAFL2 Capparis flexuosa (L.) L. falseteeth 4/0
CAHA9 Capparis hastata Jacq. broadleaf caper 4/0
CAIN5 Capparis indica (L.) Druce linguam 4/0
CASA4 Capparis sandwichiana DC. native caper 2/0
CATO23 Capparis tomentosa Lam. African caper 2/0
CABU2 Capsella bursa-pastoris (L.) Medik. shepherd's purse 5/1
BUBU3 Bursa bursa-pastoris (L.) Britt.   0/1
CARAG Caragana Fabr. peashrub 0/1
CAAR18 Caragana arborescens Lam. Siberian peashrub 6/1
CAAU10 Caragana aurantiaca Koehne dwarf peashrub 1/0
CAFR80 Caragana frutex (L.) K. Koch Russian peashrub 1/0
CAMI48 Caragana microphylla Lam. littleleaf peashrub 1/0
CARAL Caralluma R. Br. caralluma 2/0
CARU23 Caralluma russelliana (Courbon ex Brongn.) Cufod. 1/0
CAAN11 Cardamine angustata O.E. Schulz slender toothwort    
DEHE3 Dentaria heterophylla Nutt.   2/1
CABE Cardamine bellidifolia L. alpine bittercress 0/1
CABR6 Cardamine breweri S. Wats. Brewer's bittercress 3/1
CABU3 Cardamine bulbosa (Schreb. ex Muhl.) B.S.P. bulbous bittercress 5/2
CACA39 Cardamine californica (Nutt.) Greene milkmaids 2/0
CACAI3 Cardamine californica (Nutt.) Greene var. integrifolia (Nutt.) Rollins milkmaids    
DEIN8 Dentaria integrifolia Nutt.   1/0
CACL2 Cardamine clematitis Shuttlw. ex Gray small mountain bittercress 1/1
CACO26 Cardamine concatenata (Michx.) Sw. cutleaf toothwort 2/0
DELA5 Dentaria laciniata Muhl. ex Willd.   4/1
CACO6 Cardamine cordifolia Gray heartleaf bittercress 3/1
CADI10 Cardamine diphylla (Michx.) Wood crinkleroot 1/0
DEDI6 Dentaria diphylla Michx.   1/1
CADO Cardamine douglassii Britt. limestone bittercress 2/2
CAHI3 Cardamine hirsuta L. hairy bittercress 3/1
CAMA36 Cardamine maxima (Nutt.) Wood large toothwort    
DEMA Dentaria maxima Nutt.   0/1
CANUN2 Cardamine nuttallii Greene var. nuttallii palmate toothwort 1/0
CAOL Cardamine oligosperma Nutt. little western bittercress 1/1
CAPA12 Cardamine parviflora L. sand bittercress 1/1
CAPAA2 Cardamine parviflora L. var. arenicola (Britt.) O.E. Schulz sand bittercress    
CAAR24 Cardamine arenicola Britt.   0/1
CAPE3 Cardamine pensylvanica Muhl. ex Willd. Pennsylvania bittercress 1/2
CAPR3 Cardamine pratensis L. cuckoo flower 0/1
CARO3 Cardamine rotundifolia Michx. American bittercress 0/1
CADR Cardaria draba (L.) Desv. whitetop 2/0
LEDR Lepidium draba L.   0/1
CAHA13 Cardiospermum halicacabum L. love in a puff 4/2
CARDU Carduus L. plumeless thistle 1/0
CAAC Carduus acanthoides L. spiny plumeless thistle 2/0
CACR2 Carduus crispus L. curly plumeless thistle 1/1
CANU4 Carduus nutans L. nodding plumeless thistle 2/1
CAPY2 Carduus pycnocephalus L. Italian plumeless thistle 1/0
CAREX Carex L. sedge 6/0
CAAB2 Carex abrupta Mackenzie abruptbeak sedge 2/0
CAAB5 Carex abscondita Mackenzie thicket sedge 1/2
CAAC2 Carex acutiformis Ehrh. lesser pond sedge 0/1
CAAD2 Carex adusta Boott lesser brown sedge 0/1
CAAE3 Carex ×aestivaliformis Mackenzie [aestivalis × gracillima] 0/1
CAAE2 Carex aestivalis M.A. Curtis ex Gray summer sedge 0/1
CAAG2 Carex aggregata Mackenzie glomerate sedge 0/1
CAAL3 Carex alata Torr. broadwing sedge 0/1
CAAL25 Carex albicans Willd. ex Spreng. whitetinge sedge 0/1
CAALA Carex albicans Willd. ex Spreng. var. albicans whitetinge sedge    
CAVA5 Carex varia Muhl. ex Willd., non Host   0/1
CAAL5 Carex albolutescens Schwein. greenwhite sedge 3/2
CAAL6 Carex albonigra Mackenzie blackandwhite sedge 2/0
CAAL11 Carex albursina Sheldon white bear sedge 0/1
CAAL7 Carex alma Bailey sturdy sedge 2/0
CAAL8 Carex alopecoidea Tuckerman foxtail sedge 0/1
CAAM8 Carex amphibola Steud. eastern narrowleaf sedge 1/2
CAAM10 Carex amplifolia Boott bigleaf sedge 2/0
CAAN15 Carex angustata Boott widefruit sedge 2/0
CAAN6 Carex annectens (Bickn.) Bickn. yellowfruit sedge 0/1
CAAQ Carex aquatilis Wahlenb. water sedge 3/2
CAAQA Carex aquatilis Wahlenb. var. aquatilis water sedge 1/0
CAAR13 Carex arapahoensis Clokey Arapaho sedge 2/0
CAAR2 Carex arcta Boott northern cluster sedge 2/1
CAAR3 Carex arctata Boott ex Hook. drooping woodland sedge 0/1
CAAR16 Carex arenaria L. sand sedge 0/1
CAAS2 Carex assiniboinensis W. Boott Assiniboia sedge 0/1
CAAT2 Carex atherodes Spreng. wheat sedge 3/2
CAAT3 Carex athrostachya Olney slenderbeak sedge 3/0
CAAT4 Carex atlantica Bailey prickly bog sedge 1/2
CAATA2 Carex atlantica Bailey ssp. atlantica prickly bog sedge    
CAIN31 Carex incomperta Bickn.   0/1
CAATC Carex atlantica Bailey ssp. capillacea (Bailey) Reznicek prickly bog sedge    
CAHO10 Carex howei Mackenzie   0/1
CAAT6 Carex atratiformis Britt. scrabrous black sedge 0/1
CAAT7 Carex atrofusca Schkuhr darkbrown sedge 0/1
CAAT8 Carex atrosquama Mackenzie lesser blackscale sedge 2/0
CAAU3 Carex aurea Nutt. golden sedge 3/1
CAAU6 Carex austrina Mackenzie southern sedge 0/1
CABA3 Carex backii Boott Back's sedge 2/0
CADU10 Carex durifolia Bailey   0/1
CABA7 Carex baileyi Britt. Bailey's sedge 1/2
CABA9 Carex barrattii Schwein. & Torr. Barratt's sedge 5/1
CABE2 Carex bebbii Olney ex Fern. Bebb's sedge 3/1
CABE3 Carex bella Bailey southwestern showy sedge 3/0
CABI3 Carex bicknellii Britt. Bicknell's sedge 0/1
CABI5 Carex bigelowii Torr. ex Schwein. Bigelow's sedge 0/1
CABL Carex blanda Dewey eastern woodland sedge 3/2
CABR10 Carex brevior (Dewey) Mackenzie shortbeak sedge 2/0
CABR14 Carex bromoides Schkuhr ex Willd. bromelike sedge 0/1
CABR19 Carex brunnea Thunb. greater brown sedge 1/0
CABR15 Carex brunnescens (Pers.) Poir. brownish sedge 0/1
CABU7 Carex bullata Schkuhr ex Willd. button sedge 0/1
CABU5 Carex bushii Mackenzie Bush's sedge 1/2
CABU6 Carex buxbaumii Wahlenb. Buxbaum's sedge 3/1
CACA11 Carex canescens L. silvery sedge 3/1
CACA12 Carex capillaris L. hairlike sedge 3/2
CACA13 Carex capitata L. capitate sedge 2/1
CACA14 Carex careyana Torr. ex Dewey Carey's sedge 0/1
CACA15 Carex caroliniana Schwein. Carolina sedge 0/1
CACA23 Carex caryophyllea Lat. vernal sedge 0/1
CACA16 Carex castanea Wahlenb. chestnut sedge 0/1
CACE2 Carex cephaloidea (Dewey) Dewey thinleaf sedge 0/1
CACE Carex cephalophora Muhl. ex Willd. oval-leaf sedge 2/2
CACH3 Carex cherokeensis Schwein. Cherokee sedge 1/1
CACH5 Carex chordorrhiza Ehrh. ex L. f. creeping sedge 0/1
CACO21 Carex collinsii Nutt. Collins' sedge 0/1
CACO7 Carex communis Bailey fibrousroot sedge 0/1
CACO8 Carex comosa Boott longhair sedge 1/2
CACO9 Carex complanata Torr. & Hook. hirsute sedge 0/1
CACO10 Carex concinna R. Br. low northern sedge 0/1
CACO11 Carex concinnoides Mackenzie northwestern sedge 2/0
CACO13 Carex conjuncta Boott soft fox sedge 0/1
CACO14 Carex conoidea Schkuhr ex Willd. openfield sedge 0/1
CAKA Carex katahdinensis Fern.   0/1
CACR3 Carex crawei Dewey Crawe's sedge 2/1
CACR4 Carex crawfordii Fern. Crawford's sedge 2/1
CACR6 Carex crinita Lam. fringed sedge 2/2
CACR7 Carex cristatella Britt. crested sedge 1/2
CACR8 Carex crus-corvi Shuttlw. ex Kunze ravenfoot sedge 1/2
CACU5 Carex cusickii Mackenzie ex Piper & Beattie Cusick's sedge 2/0
CADA Carex davisii Schwein. & Torr. Davis' sedge 0/1
CADE5 Carex debilis Michx. white edge sedge 1/2
CADER Carex debilis Michx. var. rudgei Bailey white edge sedge    
CAFL20 Carex flexuosa Muhl. ex Willd.   0/1
CADE6 Carex decomposita Muhl. cypressknee sedge 1/2
CADE7 Carex deflexa Hornem. northern sedge 0/1
CADE9 Carex deweyana Schwein. Dewey sedge 1/1
CADI4 Carex diandra Schrank lesser panicled sedge 3/1
CADI5 Carex digitalis Willd. slender woodland sedge 0/1
CADI6 Carex disperma Dewey softleaf sedge 4/2
CADO2 Carex douglasii Boott Douglas' sedge 5/1
CADU6 Carex duriuscula C.A. Mey. needleleaf sedge    
CAEL2 Carex eleocharis Bailey   2/0
CAST40 Carex stenophylla auct. non Wahlenb. [misapplied]   0/1
CAEB Carex ebenea Rydb. ebony sedge 2/0
CAEB2 Carex eburnea Boott bristleleaf sedge 0/1
CAEC Carex echinata Murr. star sedge 3/1
CAECE Carex echinata Murr. ssp. echinata star sedge    
CALE33 Carex leersii Willd.   0/1
CAEG Carex egglestonii Mackenzie Eggleston's sedge 2/0
CAEL3 Carex elynoides Holm blackroot sedge 2/0
CAEN3 Carex engelmannii Bailey Engelmann's sedge    
CABRP3 Carex breweri Boott var. paddoensis (Suksdorf) Cronq.   2/0
CAEX7 Carex exilis Dewey coastal sedge 0/1
CAEX4 Carex exserta Mackenzie shorthair sedge 2/0
CAEX8 Carex extensa Goodenough longbract sedge 0/1
CAFE3 Carex festucacea Schkuhr ex Willd. fescue sedge 1/2
CAFI Carex filifolia Nutt. threadleaf sedge 2/1
CAFL8 Carex flacca Schreb. heath sedge    
CAGL19 Carex glauca Scop.   0/1
CAFL3 Carex flaccosperma Dewey thinfruit sedge 1/2
CAFL4 Carex flava L. yellow sedge 2/1
CAFO6 Carex folliculata L. northern long sedge 0/1
CAFO4 Carex formosa Dewey handsome sedge 0/1
CAFR2 Carex fracta Mackenzie fragile sheath sedge 2/0
CAFR3 Carex frankii Kunth Frank's sedge 4/2
CAGE Carex geophila Mackenzie White Mountain sedge 2/0
CAGE2 Carex geyeri Boott Geyer's sedge 2/0
CAGI4 Carex gigantea Rudge giant sedge 0/1
CAGL4 Carex glareosa Schkuhr ex Wahlenb. lesser saltmarsh sedge 0/1
CAGLA Carex glareosa Schkuhr ex Wahlenb. ssp. glareosa var. amphigena Fern. lesser saltmarsh sedge    
CAAM16 Carex amphigena (Fern.) Mackenzie   0/1
CAGL5 Carex glaucescens Ell. southern waxy sedge 4/1
CAGL6 Carex glaucodea Tuckerman ex Olney blue sedge 0/1
CAGR2 Carex gracillima Schwein. graceful sedge 1/2
CAGR3 Carex granularis Muhl. ex Willd. limestone meadow sedge 1/2
CASH6 Carex shriveri Britt.   0/1
CAGR4 Carex gravida Bailey heavy sedge 0/1
CAGR5 Carex grayi Carey Gray's sedge 2/1
CAAS8 Carex asa-grayi Bailey   0/1
CAGR24 Carex grisea Wahlenb. inflated narrow-leaf sedge 0/1
CAGY4 Carex gynandra Schwein. nodding sedge 0/1
CAGY2 Carex gynocrates Wormsk. ex Drej. northern bog sedge 0/1
CADIG2 Carex dioica L. var. gynocrates (Wormsk. ex Drej.) Ostenf.   2/0
CAHA5 Carex hassei Bailey salt sedge 0/1
CAHA6 Carex haydeniana Olney cloud sedge 2/0
CAHA7 Carex haydenii Dewey Hayden's sedge 0/1
CAHE4 Carex heleonastes L. f. Hudson Bay sedge 0/1
CAHE6 Carex helleri Mackenzie Heller's sedge 2/0
CAHE8 Carex heteroneura W. Boott different-nerve sedge 2/0
CAHI10 Carex hirta L. hammer sedge 0/1
CAHI5 Carex hirtifolia Mackenzie pubescent sedge 0/1
CAHI8 Carex hitchcockiana Dewey Hitchcock's sedge 0/1
CAHO5 Carex hoodii Boott Hood's sedge 3/0
CAHO8 Carex hormathodes Fern. marsh straw sedge 0/1
CAHO9 Carex houghtoniana Torr. ex Dewey Houghton's sedge    
CAHO15 Carex houghtonii Torr.   0/1
CAHY3 Carex hyalinolepis Steud. shoreline sedge 0/1
CAIM3 Carex impressa (S.H. Wright) Mackenzie   0/1
CAHY4 Carex hystericina Muhl. ex Willd. bottlebrush sedge 4/1
CAIL Carex illota Bailey sheep sedge 2/0
CAIN11 Carex interior Bailey inland sedge 3/2
CAIN12 Carex intumescens Rudge greater bladder sedge 1/2
CAJA2 Carex jamesii Schwein. James' sedge 0/1
CAJO Carex jonesii Bailey Jones' sedge 2/0
CAJO2 Carex joorii Bailey cypress swamp sedge 0/2
CALA10 Carex lachenalii Schkuhr twotipped sedge 0/1
CALA16 Carex lacustris Willd. hairy sedge 1/2
CALA11 Carex lasiocarpa Ehrh. woollyfruit sedge 2/1
CALA18 Carex laxiculmis Schwein. spreading sedge 0/1
CALA19 Carex laxiflora Lam. broad looseflower sedge 0/1
CALAL5 Carex laxiflora Lam. var. laxiflora broad looseflower sedge    
CAAN17 Carex anceps Muhl.   0/1
CALE6 Carex leavenworthii Dewey Leavenworth's sedge 0/1
CALE8 Carex lenticularis Michx. lakeshore sedge 3/1
CALEL3 Carex lenticularis Michx. var. lipocarpa (Holm) L.A. Standley Kellogg's sedge 1/0
CAKE2 Carex kelloggii W. Boott   1/0
CALE9 Carex leporinella Mackenzie Sierra hare sedge 3/0
CALE10 Carex leptalea Wahlenb. bristlystalked sedge 3/1
CALE11 Carex leptonervia (Fern.) Fern. nerveless woodland sedge 1/1
CALI7 Carex limosa L. mud sedge 6/1
CALI Carex livida (Wahlenb.) Willd. livid sedge 2/1
CALO6 Carex louisianica Bailey Louisiana sedge 0/1
CALU3 Carex lupuliformis Sartwell ex Dewey false hop sedge 1/1
CALU4 Carex lupulina Muhl. ex Willd. hop sedge 2/2
CALU5 Carex lurida Wahlenb. shallow sedge 2/2
CALU7 Carex luzulina Olney woodrush sedge 3/0
CALUA Carex luzulina Olney var. ablata (Bailey) F.J. Herm. woodrush sedge 1/0
CALY3 Carex lyngbyei Hornem. Lyngbye's sedge 2/0
CACR15 Carex cryptocarpa C.A. Mey.   0/1
CAMA9 Carex macloviana d'Urv. thickhead sedge 0/1
CAMA10 Carex macrocephala Willd. ex Spreng. largehead sedge 2/0
CAMAI2 Carex magellanica Lam. ssp. irrigua (Wahlenb.) Hultén boreal bog sedge    
CAPA22 Carex paupercula Michx.   2/1
CAMA13 Carex mariposana Bailey ex Mackenzie Mariposa sedge 2/0
CAMA14 Carex maritima Gunn. curved sedge 0/1
CAIN35 Carex incurva Lightf.   0/1
CAME2 Carex meadii Dewey Mead's sedge 1/1
CAME4 Carex membranacea Hook. fragile sedge    
CAME25 Carex membranopacta Bailey   0/1
CAME6 Carex mertensii Prescott ex Bong. Mertens' sedge 2/0
CAME13 Carex mesochorea Mackenzie midland sedge 0/1
CAMI15 Carex michauxiana Boeckl. Michaux's sedge    
CAAB10 Carex abacta Bailey   0/1
CAMI6 Carex microglochin Wahlenb. fewseeded bog sedge 2/1
CAMI7 Carex microptera Mackenzie smallwing sedge 3/0
CAMI10 Carex misandra R. Br. shortleaved sedge 0/1
CAFUM2 Carex fuliginosa Schkuhr ssp. misandra (R. Br.) Nyman   2/0
CAMO11 Carex molesta Mackenzie ex Bright troublesome sedge 1/1
CAMU4 Carex muehlenbergii Schkuhr ex Willd. Muhlenberg's sedge 0/1
CAMU5 Carex multicaulis Bailey manystem sedge 2/0
CAMU6 Carex multicostata Mackenzie manyrib sedge 2/0
CAMU7 Carex muricata L. rough sedge 0/1
CAMU9 Carex muskingumensis Schwein. Muskingum sedge 1/2
CANA2 Carex nardina Fries spike sedge 2/1
CANE2 Carex nebrascensis Dewey Nebraska sedge 4/1
CANE3 Carex nelsonii Mackenzie Nelson's sedge 2/0
CANE5 Carex nervina Bailey Sierra sedge 2/0
CANE6 Carex neurophora Mackenzie alpine nerve sedge 2/0
CANI5 Carex nigra (L.) Reichard smooth black sedge    
CAGO2 Carex goodenowii J. Gay   0/1
CANI2 Carex nigricans C.A. Mey. black alpine sedge 3/0
CANI3 Carex nigromarginata Schwein. black edge sedge 0/1
CANO Carex normalis Mackenzie greater straw sedge 0/2
CANO2 Carex norvegica Retz. Norway sedge 2/1
CANO3 Carex nova Bailey black sedge 2/0
CANO4 Carex novae-angliae Schwein. New England sedge 0/1
CANU5 Carex nudata W. Boott naked sedge 1/0
CAOB2 Carex obispoensis Stacey San Luis Obispo sedge 2/0
CAOB4 Carex obtusata Lilj. obtuse sedge 2/0
CAOC2 Carex occidentalis Bailey western sedge 2/0
CAOL2 Carex oligocarpa Schkuhr ex Willd. richwoods sedge 0/1
CAOL3 Carex oligosperma Michx. fewseed sedge 0/1
CAOR6 Carex oronensis Fern. Orono sedge 0/1
CAOV8 Carex ovalis Goodenough eggbract sedge    
CALE23 Carex leporina auct. non L. [misapplied]   0/1
CAOX Carex oxylepis Torr. & Hook. sharpscale sedge 0/1
CAPA14 Carex pachystachya Cham. ex Steud. chamisso sedge 2/0
CAPA17 Carex pallescens L. pale sedge 0/1
CAPA30 Carex panicea L. grasslike sedge 0/1
CAPA18 Carex parryana Dewey Parry's sedge 2/1
CAPA19 Carex pauciflora Lightf. fewflower sedge 0/1
CAPA31 Carex paysonis Clokey Payson's sedge 2/0
CAPE4 Carex pedunculata Muhl. ex Willd. longstalk sedge 0/1
CAPE42 Carex pellita Muhl ex Willd. woolly sedge 0/1
CALA30 Carex lanuginosa auct. non Michx. [misapplied]   3/1
CAPE6 Carex pensylvanica Lam. Pennsylvania sedge 0/1
CAPE12 Carex perglobosa Mackenzie globe sedge 2/0
CAPE7 Carex petasata Dewey Liddon sedge 2/0
CAPH2 Carex phaeocephala Piper dunhead sedge 1/0
CAPI5 Carex picta Steud. Boott's sedge 0/1
CAPL4 Carex plantaginea Lam. plantainleaf sedge 0/1
CAPL5 Carex platyphylla Carey broadleaf sedge 0/1
CAPO4 Carex polymorpha Muhl. variable sedge 1/2
CAPR22 Carex praeceptorum Mackenzie early sedge    
CAPR4 Carex praeceptorium Mackenzie [orthographic variant]   2/0
CAPR5 Carex praegracilis W. Boott clustered field sedge 4/0
CACA50 Carex camporum Mackenzie   0/1
CAPR6 Carex prairea Dewey ex Wood prairie sedge 0/1
CAPR12 Carex prasina Wahlenb. drooping sedge 1/2
CAPR7 Carex praticola Rydb. meadow sedge 2/1
CAPR9 Carex projecta Mackenzie necklace sedge 0/2
CAPR10 Carex proposita Mackenzie Great Smoky Mountain sedge 2/0
CAPS Carex pseudocyperus L. cypresslike sedge 0/1
CAPY3 Carex pyrenaica Wahlenb. Pyrenean sedge 2/0
CAPYP Carex pyrenaica Wahlenb. ssp. pyrenaica Pyrenean sedge 1/0
CARA5 Carex rariflora (Wahlenb.) Sm. looseflower alpine sedge 0/1
CARA6 Carex raynoldsii Dewey Raynolds' sedge 3/0
CARE14 Carex recta Boott estuary sedge 0/1
CARE9 Carex retroflexa Muhl. ex Willd. reflexed sedge 0/1
CARE4 Carex retrorsa Schwein. knotsheath sedge 2/1
CARI Carex richardsonii R. Br. Richardson's sedge 0/1
CARO22 Carex rosea Schkuhr ex Willd. rosy sedge 0/1
CARO5 Carex rossii Boott Ross' sedge 2/1
CARO6 Carex rostrata Stokes beaked sedge 3/1
CARO7 Carex rotundata Wahlenb. round sedge 0/1
CARU3 Carex rupestris All. curly sedge 2/1
CASA8 Carex sartwellii Dewey Sartwell's sedge 0/1
CASA10 Carex saxatilis L. rock sedge 3/1
CAMI29 Carex miliaris Michx.   0/1
CARH5 Carex rhomalea (Fern.) Mackenzie   0/1
CASC13 Carex scabrata Schwein. eastern rough sedge 1/1
CASC9 Carex schweinitzii Dewey ex Schwein. Schweinitz's sedge 0/1
CASC10 Carex scirpoidea Michx. northern singlespike sedge 1/2
CASCP3 Carex scirpoidea Michx. ssp. pseudoscirpoidea (Rydb.) Dunlop western singlespike sedge    
CASCP2 Carex scirpoidea Michx. var. pseudoscirpoidea (Rydb.) Cronq.   2/0
CASC11 Carex scoparia Schkuhr ex Willd. broom sedge 3/2
CASC12 Carex scopulorum Holm mountain sedge 3/0
CASCP Carex scopulorum Holm var. prionophylla (Holm) L.A. Standley firethread sedge    
CAPR13 Carex prionophylla Holm   2/0
CASE6 Carex seorsa Howe weak stellate sedge 0/1
CASH Carex sheldonii Mackenzie Sheldon's sedge 2/0
CASH2 Carex shortiana Dewey Short's sedge 1/2
CASI12 Carex siccata Dewey dryspike sedge 2/1
CAAE Carex aenea Fern.   2/1
CAFO3 Carex foenea Willd.   0/1
CASI6 Carex silicea Olney beach sedge 0/1
CASI2 Carex simulata Mackenzie analogue sedge 3/0
CASP3 Carex sparganioides Muhl. ex Willd. burr reed sedge 1/2
CASP4 Carex specifica Bailey narrowfruit sedge 2/0
CASP5 Carex spectabilis Dewey showy sedge 3/0
CASP7 Carex sprengelii Dewey ex Spreng. Sprengel's sedge 0/1
CASQ2 Carex squarrosa L. squarrose sedge 3/2
CAST55 Carex ×stenolepis Lessing [saxatilis × vesicaria]    
CAMA55 Carex mainensis Porter ex Britt.   0/1
CAST16 Carex sterilis Willd. dioecious sedge    
CAEL11 Carex elachycarpa Fern.   0/1
CAST5 Carex stipata Muhl. ex Willd. owlfruit sedge 4/2
CAST6 Carex straminea Willd. ex Schkuhr eastern straw sedge 2/2
CAST7 Carex straminiformis Bailey Shasta sedge 2/0
CASTS4 Carex striata Michx. var. striata Walter's sedge    
CAWA2 Carex walteriana Bailey   0/1
CAST17 Carex striatula Michx. lined sedge 0/1
CAST8 Carex stricta Lam. upright sedge 2/2
CAST9 Carex styloflexa Buckl. bent sedge 0/1
CAST10 Carex stylosa C.A. Mey. variegated sedge 0/1
CASU5 Carex suberecta (Olney) Britt. prairie straw sedge 0/1
CASU6 Carex subfusca W. Boott brown sedge 2/0
CASU7 Carex subnigricans Stacey nearlyblack sedge 2/0
CASU8 Carex subspathacea Wormsk. ex Hornem. Hoppner's sedge 0/1
CASU9 Carex supina Willd. ex Wahlenb. weak arctic sedge 0/1
CASW Carex swanii (Fern.) Mackenzie Swan's sedge 0/1
CASY Carex sychnocephala Carey manyhead sedge 0/1
CATE3 Carex tenera Dewey quill sedge 1/1
CATE5 Carex tenuiflora Wahlenb. sparseflower sedge 0/1
CATE6 Carex tetanica Schkuhr rigid sedge 0/1
CATE7 Carex texensis (Torr.) Bailey Texas sedge 0/1
CATO10 Carex tonsa (Fern.) Bickn. shaved sedge 0/1
CATO3 Carex torreyi Tuckerman Torrey's sedge    
CAAB9 Carex abbreviata Prescott   0/1
CATO4 Carex torta Boott ex Tuckerman twisted sedge 1/2
CATR6 Carex triangularis Boeckl. eastern fox sedge 1/0
CATR7 Carex tribuloides Wahlenb. blunt broom sedge 3/2
CATR8 Carex trichocarpa Muhl. ex Willd. hairyfruit sedge 1/2
CATR10 Carex trisperma Dewey threeseeded sedge 1/2
CATU2 Carex tuckermanii Dewey Tuckerman's sedge 1/1
CATU3 Carex tumulicola Mackenzie splitawn sedge 1/0
CATY Carex typhina Michx. cattail sedge 1/2
CAUM4 Carex umbellata Schkuhr ex Willd. parasol sedge 0/1
CAUR Carex ursina Dewey bear sedge 0/1
CAUT Carex utriculata Boott Northwest Territory sedge 3/0
CAVA2 Carex vaginata Tausch sheathed sedge 0/1
CAVA3 Carex vallicola Dewey valley sedge 3/0
CAVEM Carex venusta Dewey var. minor Boeckl. darkgreen sedge    
CAOB8 Carex oblita Steud.   0/1
CAVE5 Carex vernacula Bailey native sedge    
CAFOV Carex foetida All. var. vernacula (Bailey) Kükenth.   2/0
CAVE6 Carex vesicaria L. blister sedge 5/1
CAVEM2 Carex vesicaria L. var. monile (Tuckerman) Fern. blister sedge    
CAMO24 Carex monile Tuckerman   0/1
CAVER Carex vesicaria L. var. raeana (Boott) Fern. blister sedge    
CARA14 Carex raeana Boott   0/1
CAVE9 Carex vestita Willd. velvet sedge 0/1
CAVI4 Carex virescens Muhl. ex Willd. ribbed sedge 0/1
CAVI5 Carex viridula Michx. little green sedge 2/0
CAVIE Carex viridula Michx. ssp. brachyrrhyncha (Celak.) B. Schmid var. elatior (Schlecht.) Crins little green sedge    
CALE22 Carex lepidocarpa Tausch   0/1
CAVIV Carex viridula Michx. ssp. viridula little green sedge    
CAOE Carex oederi auct. non Retz. [misapplied]   2/1
CAVU2 Carex vulpinoidea Michx. fox sedge 5/2
CAVUV Carex vulpinoidea Michx. var. vulpinoidea fox sedge    
CASE22 Carex setacea Dewey   0/1
CAWH Carex whitneyi Olney Whitney's sedge 2/0
CAWI2 Carex willdenowii Schkuhr ex Willd. Willdenow's sedge 0/1
CAWO2 Carex woodii Dewey pretty sedge    
CACO49 Carex colorata Mackenzie   0/1
CAXE Carex xerantica Bailey whitescale sedge 0/1
CAPA23 Carica papaya L. papaya 29/0
CARIS Carissa L. carissa 2/0
CAED8 Carissa edulis (Forsk.) Vahl [excluded] Egyptian carissa 1/0
CAMA37 Carissa macrocarpa (Ecklon) A. DC. amatungulu 1/0
CAGR15 Carissa grandiflora (E. Mey.) A. DC.   1/0
CAPA65 Carludovica palmata Ruiz & Pavón Panama hat plant 1/0
CARMI2 Carmichaelia R. Br. carmichaelia 1/0
CAWI11 Carmichaelia williamsi Kirk 1/0
CAGI10 Carnegiea gigantea (Engelm.) Britton & Rose saguaro 1/0
CAGI7 Carnegia gigantea (Engelm.) Britt. & Rose [orthographic variant]   1/0
CEGI Cereus giganteus Engelm.   12/0
CARPE Carpenteria Torr. tree anemone 0/1
CACA17 Carpenteria californica Torr. tree anemone 2/0
CAOD3 Carphephorus odoratissimus (J.F. Gmel.) Herbert vanillaleaf    
TROD Trilisa odoratissima (J.F. Gmel.) Cass.   0/1
CAPA53 Carphephorus paniculatus (J.F. Gmel.) Herbert hairy chaffhead    
TRPA7 Trilisa paniculata (J.F. Gmel.) Cass.   1/1
CAPS5 Carphephorus pseudoliatris Cass. bristleleaf chaffhead 1/0
CABI6 Carphochaete bigelovii Gray Bigelow's bristlehead 4/0
CABE8 Carpinus betulus L. European hornbeam 3/0
CACA18 Carpinus caroliniana Walt. American hornbeam 10/3
CACH38 Carpobrotus chilensis (Molina) N.E. Br. sea fig 1/0
CAAE8 Carpobrotus aequilateralus auct. non (Haw.) N.E. Br. [misapplied]   1/0
MECH4 Mesembryanthemum chilense Molina   2/0
CAED3 Carpobrotus edulis (L.) L. Bolus hottentot fig 6/0
CALA20 Carthamus lanatus L. woolly distaff thistle 1/0
CALAC3 Carthamus lanatus L. ssp. creticus (L.) Holmboe woolly distaff thistle    
CALAB2 Carthamus lanatus L. ssp. baeticus (Boiss. & Reut.) Maire   1/0
CALE52 Carthamus leucocaulos Sibith. & Sm. whitestem distaff thistle 1/0
CAOX6 Carthamus oxyacanthus Bieb. jeweled distaff thistle    
CAOX2 Carthamus oxyacantha Bieb. [orthographic variant]   1/0
CACA19 Carum carvi L. caraway 1/1
CARYA Carya Nutt. hickory 1/0
CAAL27 Carya alba (L.) Nutt. ex Ell. mockernut hickory 1/0
CATO6 Carya tomentosa (Lam. ex Poir.) Nutt.   9/0
CAAQ2 Carya aquatica (Michx. f.) Nutt. water hickory 7/1
HIAQ Hicoria aquatica (Michx. f.) Britt.   0/1
CACA38 Carya carolinae-septentrionalis (Ashe) Engl. & Graebn. southern shagbark hickory    
HICA8 Hicoria carolinae-septentrionalis Ashe   0/1
CACO15 Carya cordiformis (Wangenh.) K. Koch bitternut hickory 8/1
CACOL3 Carya cordiformis (Wangenh.) K. Koch var. latifolia Sarg.   2/0
HICO5 Hicoria cordiformis (Wangenh.) Britt.   0/1
CAGL8 Carya glabra (P. Mill.) Sweet pignut hickory 11/1
CAGLM Carya glabra (Mill.) Sweet var. megacarpa (Sarg.) Sarg.   3/0
CAMI33 Carya microcarpa (Nutt.) Britt.   0/1
HIGL Hicoria glabra (P. Mill.) Britt.   0/1
CAIL2 Carya illinoinensis (Wangenh.) K. Koch pecan 13/1
HIPE Hicoria pecan (Marsh.) Britt.   0/1
CALA21 Carya laciniosa (Michx. f.) G. Don shellbark hickory 6/1
HILA7 Hicoria laciniosa (Michx. f.) Sarg.   0/1
CAMY Carya myristiciformis (Michx. f.) Nutt. nutmeg hickory 4/1
CAOV3 Carya ovalis (Wangenh.) Sarg. red hickory 5/0
HIOV Hicoria ovalis (Wangenh.) Ashe   1/0
CAOV2 Carya ovata (P. Mill.) K. Koch shagbark hickory 9/2
HIAL7 Hicoria alba Britt. p.p.   0/1
HIBO3 Hicoria borealis Ashe   0/1
HIOV2 Hicoria ovata (P. Mill.) Britt.   0/1
CAPA24 Carya pallida (Ashe) Engl. & Graebn. sand hickory    
HIPA7 Hicoria pallida Ashe   0/1
CATE9 Carya texana Buckl. black hickory    
HIVI2 Hicoria villosa (Sarg.) Ashe   0/1
CANU12 Caryocar nuciferum L. souari nut 1/0
CAMI36 Caryota mitis Lour. Burmese fishtail palm 1/0
CAAR8 Casearia arborea (L.C. Rich.) Urban gia verde 1/0
CADE11 Casearia decandra Jacq. wild honeytree 2/0
CAGU2 Casearia guianensis (Aubl.) Urban Guyanese wild coffee 1/0
CASY2 Casearia sylvestris Sw. crackopen 2/0
CASSI Cassia L. cassia 1/0
CAAB13 Cassia abbreviata Oliver long-pod-cassia 1/0
CAFI3 Cassia fistula L. golden shower 8/0
CAGR11 Cassia grandis L. f. pink shower 1/0
CAJA3 Cassia javanica L. apple blossom 2/0
CAXY Cassine xylocarpa Vent. marbletree 3/0
CAME7 Cassiope mertensiana (Bong.) D. Don western moss heather 5/0
CAMEM Cassiope mertensiana (Bong.) G. Don var. mertensiana western moss heather 2/0
CATE11 Cassiope tetragona (L.) D. Don white arctic mountain heather 1/1
CAGU3 Cassipourea guianensis Aubl. goatwood 2/0
CAFI4 Cassytha filiformis L. devil's gut 1/0
CATR18 Castalis tragus (Ait.) Norl. Cape marigold    
DIAU3 Dimorphotheca aurantiaca DC., non Horton   1/0
CASTA Castanea P. Mill. chestnut 7/1
CADE12 Castanea dentata (Marsh.) Borkh. American chestnut 8/1
CAMO83 Castanea mollissima Blume Chinese chestnut 2/0
CAPU9 Castanea pumila (L.) P. Mill. chinkapin 4/1
CAPUP3 Castanea pumila (L.) Mill. var. pumila chinkapin 2/0
CASTI Castilla Cerv. castilla 1/0
CAEL5 Castilla elastica Sessé Panama rubbertree 1/0
CASTI2 Castilleja Mutis ex L. f. Indian paintbrush 10/0
CAAF Castilleja affinis Hook. & Arn. coast Indian paintbrush 9/0
CAAFA2 Castilleja affinis Hook. & Arn. ssp. affinis coast Indian paintbrush 2/0
CAAFN2 Castilleja affinis Hook. & Arn. ssp. neglecta (Zeile) Chuang & Heckard Tiburon Indian paintbrush    
CANE8 Castilleja neglecta Zeile   4/0
CAAMA3 Castilleja ambigua Hook. & Arn. ssp. ambigua johnny-nip    
ORCA4 Orthocarpus castillejoides Benth.   2/0
CAAMH Castilleja ambigua Hook. & Arn. ssp. humboldtiensis (Keck) Chuang & Heckard Humboldt Bay owl's-clover    
ORCAH Orthocarpus castillejoides Benth. var. humboldtiensis Keck   1/0
CAAN7 Castilleja angustifolia (Nutt.) G. Don northwestern Indian paintbrush 4/0
CAAND Castilleja angustifolia (Nutt.) G. Don var. dubia A. Nels.    
CACH7 Castilleja chromosa A. Nels.   5/0
CAAP4 Castilleja applegatei Fern. wavyleaf Indian paintbrush 1/0
CAAPM Castilleja applegatei Fern. ssp. martinii (Abrams) Chuang & Heckard wavyleaf Indian paintbrush 2/0
CAMA16 Castilleja martinii Abrams   1/0
CAAPP3 Castilleja applegatei Fern. ssp. pallida (Eastw.) Chuang & Heckard wavyleaf Indian paintbrush    
CAAPB Castilleja applegatei Fern. var. breweri (Fern.) N. Holmgren   2/0
CABR29 Castilleja breweri Fern.   1/0
CAAPP4 Castilleja applegatei Fern. ssp. pinetorum (Fern.) Chuang & Heckard wavyleaf Indian paintbrush 2/0
CAAR11 Castilleja arachnoidea Greenm. cobwebby Indian paintbrush 4/0
CAAT25 Castilleja attenuata (Gray) Chuang & Heckard attenuate Indian paintbrush 2/0
ORAT Orthocarpus attenuatus Gray   1/0
CACI6 Castilleja cinerea Gray ashgray Indian paintbrush 1/0
CACO17 Castilleja coccinea (L.) Spreng. scarlet Indian paintbrush 2/1
CACR14 Castilleja cryptantha Pennell & G.N. Jones obscure Indian paintbrush 3/0
CADE29 Castilleja densiflora (Benth.) Chuang & Heckard denseflower Indian paintbrush 2/0
CADED3 Castilleja densiflora (Benth.) Chuang & Heckard ssp. densiflora denseflower Indian paintbrush 2/0
ORDE Orthocarpus densiflorus Benth.   6/0
CAEX14 Castilleja exserta (Heller) Chuang & Heckard exserted Indian paintbrush 2/0
CAEXE Castilleja exserta (Heller) Chuang & Heckard ssp. exserta exserted Indian paintbrush 4/0
ORPU Orthocarpus purpurascens Benth.   4/0
CAEXL Castilleja exserta (Heller) Chuang & Heckard ssp. latifolia (S. Wats.) Chuang & Heckard wideleaf Indian paintbrush    
ORPUL Orthocarpus purpurascens Benth. var. latifolius S. Wats.   2/0
CAFL7 Castilleja flava S. Watson yellow Indian paintbrush 2/0
CAFO2 Castilleja foliolosa Hook. & Arn. Texas Indian paintbrush 3/0
CAHA16 Castilleja haydenii (Gray) Cockerell Hayden's Indian paintbrush 3/0
CAHI9 Castilleja hispida Benth. harsh Indian paintbrush 2/0
CAHIH2 Castilleja hispida Benth. ssp. hispida harsh Indian paintbrush 2/0
CAIN13 Castilleja indivisa Engelm. entireleaf Indian paintbrush 10/1
CAIN14 Castilleja integra Gray wholeleaf Indian paintbrush 11/0
CALA68 Castilleja lacera (Benth.) Chuang & Heckard cutleaf Indian paintbrush    
ORLA Orthocarpus lacerus Benth.   1/0
CALA24 Castilleja lanata Gray Sierra woolly Indian paintbrush 2/0
CALAH Castilleja lanata Gray ssp. hololeuca (Greene) Chuang & Heckard whitefelt Indian paintbrush 5/0
CALA26 Castilleja latifolia Hook. & Arn. Monterey Indian paintbrush 3/0
CALE18 Castilleja lemmonii Gray Lemmon's Indian paintbrush 5/0
CACU11 Castilleja culbertsonii Greene   1/0
CALI4 Castilleja linariifolia Benth. Wyoming Indian paintbrush 11/0
CALI20 Castilleja lineariiloba (Benth.) Chuang & Heckard sagebrush Indian paintbrush    
ORLI5 Orthocarpus lineariilobus Benth.   2/0
CALI5 Castilleja lineata Greene marshmeadow Indian paintbrush 3/0
CAME21 Castilleja mendocinensis (Eastw.) Pennell Mendocino Coast Indian paintbrush 2/0
CAMI12 Castilleja miniata Dougl. ex Hook. giant red Indian paintbrush 11/1
CAMIM5 Castilleja miniata Dougl. ex Hook. ssp. miniata giant red Indian paintbrush    
CAGR16 Castilleja gracillima Rydb.   1/0
CAMI13 Castilleja minor (Gray) Gray lesser Indian paintbrush 0/1
CANA3 Castilleja nana Eastw. dwarf alpine Indian paintbrush 2/0
CAOC4 Castilleja occidentalis Torr. western Indian paintbrush 2/0
CAPAI Castilleja pallescens (A. Gray) Greenm. var. inverta (A. Nelson & J.F. Macbr.) Edwin pale Indian paintbrush 2/0
CAPA26 Castilleja parviflora Bong. mountain Indian paintbrush 4/0
CAPAO Castilleja parviflora Bong. var. oreopola (Greenm.) Ownbey Henry Indian paintbrush 3/0
CAPAP8 Castilleja parviflora Bong. var. parviflora smallflower Indian paintbrush    
CAPE9 Castilleja peirsonii Eastw.   2/0
CAPI3 Castilleja pilosa (S. Wats.) Rydb. parrothead Indian paintbrush 5/0
CAPIP Castilleja pilosa (S. Wats.) Rydb. var. pilosa parrothead Indian paintbrush 2/0
CAPS7 Castilleja psittacina (Eastw.) Pennell   1/0
CAPU19 Castilleja puberula Rydb. shortflower Indian paintbrush 2/0
CAPU11 Castilleja purpurea (Nutt.) G. Don downy Indian paintbrush 5/0
CAPUC Castilleja purpurea (Nutt.) G. Don var. citrina (Pennell) Shinners prairie Indian paintbrush 1/0
CACI8 Castilleja citrina Pennell   1/0
CAPUL Castilleja purpurea (Nutt.) G. Don var. lindheimeri (Gray) Shinners Lindheimer's Indian paintbrush 1/0
CAPUP5 Castilleja purpurea (Nutt.) G. Don var. purpurea downy Indian paintbrush 1/0
CARH4 Castilleja rhexiifolia Rydb. splitleaf Indian paintbrush 7/0
CARI12 Castilleja rigida Eastw. rigid Indian paintbrush    
CALA50 Castilleja latebracteata Pennell   4/0
CARUL Castilleja rubicundula (Jepson) Chuang & Heckard ssp. lithospermoides (Benth.) Chuang & Heckard cream sacs 5/0
CARU9 Castilleja rupicola Piper ex Fernald cliff Indian paintbrush 1/0
CASA20 Castilleja salsuginosa N. Holmgren Monte Neva Indian paintbrush 1/0
CASC19 Castilleja scabrida Eastw. rough Indian paintbrush 5/0
CASCS4 Castilleja scabrida Eastw. var. scabrida Zion Indian paintbrush 2/0
CASC20 Castilleja schizotricha Greenm. splithair Indian paintbrush 3/0
CASE4 Castilleja septentrionalis Lindl. Labrador Indian paintbrush    
CAAC7 Castilleja acuminata auct. non (Pursh) Spreng. [misapplied]   0/1
CASE5 Castilleja sessiliflora Pursh downy paintedcup 2/1
CASU11 Castilleja suksdorfii Gray Suksdorf's Indian paintbrush 1/0
CASU12 Castilleja sulphurea Rydb. sulphur Indian paintbrush 1/0
CATE14 Castilleja tenuiflora Benth. Santa Catalina Indian paintbrush 4/0
CATH4 Castilleja thompsonii Pennell Thompson's Indian paintbrush 2/0
CAUN4 Castilleja unalaschcensis (Cham. & Schlecht.) Malte Alaska Indian paintbrush 2/0
CACU8 Casuarina cunninghamiana Miq. river sheoak 6/1
CAEQ Casuarina equisetifolia L. beach sheoak 11/0
CAGL11 Casuarina glauca Sieb. ex Spreng. gray sheoak 1/0
CALE28 Casuarina lepidophloia F. Muell. belah 4/0
CAAQ3 Catabrosa aquatica (L.) Beauv. water whorlgrass 3/2
CATAL Catalpa Scop. catalpa 2/1
CABI8 Catalpa bignonioides Walt. southern catalpa 9/1
CACA58 Catalpa catalpa (L.) Karst.   0/1
CAFA6 Catalpa fargesii Bureau 3/0
CALO8 Catalpa longissima (Jacq.) Dum.-Cours. Haitian catalpa 1/0
CAOV5 Catalpa ovata G. Don Chinese catalpa 1/0
CASP8 Catalpa speciosa (Warder) Warder ex Engelm. northern catalpa 14/2
CARI2 Catapodium rigidum (L.) C.E. Hubbard ex Dony ferngrass 1/0
SCRI3 Scleropoa rigida (L.) Griseb.   1/1
CACO78 Catapyrenium congestum Breuss & McCune 4/0
CASQ5 Catapyrenium squamulosum (Ach.) Breuss 2/0
CATAS2 Catasetum Rich. ex Kunth catasetum 1/0
CARO14 Catharanthus roseus (L.) G. Don Madagascar periwinkle 2/0
CAER2 Cathestecum erectum Vasey & Hack. false grama 0/1
CATOP Catopsis Griseb. strap airplant 2/0
CATTL2 Cattleya Lindl. cattleya 1/0
CAGA10 Cattleya gaskelliana Sander 1/0
CAAN25 Caulanthus anceps Payson Lemmon's mustard    
GULE2 Guillenia lemmonii (S. Wats.) R. Buck   2/0
CACO38 Caulanthus coulteri S. Wats. Coulter's wild cabbage 1/0
CACR11 Caulanthus crassicaulis (Torr.) S. Wats. thickstem wild cabbage 2/0
CACRG Caulanthus crassicaulis (Torr.) S. Wats. var. glaber M.E. Jones thickstem wild cabbage 4/0
CAGL12 Caulanthus glaucus S. Wats. glaucous wild cabbage 2/0
CAIN15 Caulanthus inflatus S. Wats. desert candle 5/0
CAMAN Caulanthus major (M.E. Jones) Payson var. nevadensis Rollins slender wild cabbage 2/0
CAPI4 Caulanthus pilosus S. Wats. hairy wild cabbage 1/0
CASI5 Caulanthus simulans Payson Payson's wild cabbage 3/0
CATH2 Caulophyllum thalictroides (L.) Michx. blue cohosh 5/1
CAAM15 Cayaponia americana (Lam.) Cogn. American melonleaf 3/0
CAQU3 Cayaponia quinqueloba (Raf.) Shinners fivelobe cucumber 2/1
CARA10 Cayaponia racemosa (P. Mill.) Cogn. mountain melonleaf 1/0
CEANO Ceanothus L. ceanothus 9/0
CEAM Ceanothus americanus L. New Jersey tea 10/2
CEAR Ceanothus arboreus Greene feltleaf ceanothus 6/0
CECO6 Ceanothus confusus J.T. Howell Rincon Ridge ceanothus 1/0
CECO Ceanothus cordulatus Kellogg whitethorn ceanothus 6/0
CECR Ceanothus crassifolius Torr. hoaryleaf ceanothus 2/0
CECU Ceanothus cuneatus (Hook.) Nutt. buckbrush 8/0
CECUC3 Ceanothus cuneatus (Hook.) Nutt. var. cuneatus buckbrush    
CERA Ceanothus ramulosus (Greene) McMinn   2/0
CECUR2 Ceanothus cuneatus (Hook.) Nutt. var. rigidus (Nutt.) Hoover Monterey ceanothus    
CERI Ceanothus rigidus Nutt.   2/0
CEFE Ceanothus fendleri Gray Fendler's ceanothus 3/0
CEGL Ceanothus gloriosus J.T. Howell Point Reyes ceanothus 3/0
CEGR Ceanothus greggii Gray desert ceanothus 7/0
CEGR2 Ceanothus griseus (Trel. ex B.L. Robins.) McMinn Carmel ceanothus 2/0
CEGRH Ceanothus griseus (Trel.) McMinn var. horizontalis McMinn   4/0
CEHE Ceanothus herbaceus Raf. Jersey tea 2/0
CEOV Ceanothus ovatus auct. non Desf. [misapplied]   0/1
CEIM Ceanothus impressus Trel. Santa Barbara ceanothus 2/0
CEIN Ceanothus incanus Torr. & Gray coast whitethorn 2/0
CEIN3 Ceanothus integerrimus Hook. & Arn. deerbrush 3/0
CEME Ceanothus megacarpus Nutt. bigpod ceanothus 4/0
CEMEI2 Ceanothus megacarpus Nutt. var. insularis (Eastw.) Munz island ceanothus 1/0
CEIN9 Ceanothus insularis Eastw.   3/0
CEMI4 Ceanothus microphyllus Michx. littleleaf buckbrush 1/0
CEOL Ceanothus oliganthus Nutt. hairy ceanothus 3/0
CEPA2 Ceanothus papillosus Torr. & Gray wartleaf ceanothus 1/0
CEPAR Ceanothus papillosus Torr. & Gray var. roweanus McMinn wartleaf ceanothus 1/0
CEPR Ceanothus prostratus Benth. prostrate ceanothus 8/0
CERO4 Ceanothus roderickii Knight Pine Hill buckbrush 6/0
CESO2 Ceanothus sorediatus Hook. & Arn. jimbrush    
CEOLS2 Ceanothus oliganthus Nutt. var. sorediatus (Hook. & Arn.) Hoover   1/0
CESP Ceanothus spinosus Nutt. redheart 5/0
CETH Ceanothus thyrsiflorus Eschsch. blueblossom 8/0
CEVE Ceanothus velutinus Dougl. ex Hook. snowbrush ceanothus 11/0
CEVEV4 Ceanothus velutinus Dougl. ex Hook. var. velutinus snowbrush ceanothus 2/0
CEVE2 Ceanothus verrucosus Nutt. barranca brush 6/0
CESC9 Cecropia schreberiana Miq. pumpwood 2/0
CEPE Cecropia peltata auct. non L. [misapplied]   3/0
CEOD Cedrela odorata L. Spanish cedar 1/0
CEDRU Cedrus Trew cedar 1/2
CEDE2 Cedrus deodara (Roxb. ex D. Don) G. Don f. Deodar cedar 10/0
CEPE2 Ceiba pentandra (L.) Gaertn. kapoktree 10/0
CELAS Celastrus L. bittersweet 1/1
CEOR7 Celastrus orbiculatus Thunb. Oriental bittersweet 1/0
CESC Celastrus scandens L. American bittersweet 6/1
CESP8 Celmisia spectabilis Hook. f. 2/0
CELTI Celtis L. hackberry 2/0
CELA Celtis laevigata Willd. sugarberry 6/2
CELAR Celtis laevigata Willd. var. reticulata (Torr.) L. Benson netleaf hackberry 2/0
CERE2 Celtis reticulata Torr.   3/1
CEOC Celtis occidentalis L. common hackberry 12/3
CEPU10 Celtis pumila Pursh   1/0
CETE Celtis tenuifolia Nutt. dwarf hackberry    
CEGE2 Celtis georgiana Small   0/1
CEMI9 Celtis mississippiensis Bosc   0/1
CEBI Cenchrus biflorus Roxb. Indian sandburr 1/0
CEBR Cenchrus brownii Roemer & J.A. Schultes slimbristle sandbur 1/1
CEEC Cenchrus echinatus L. southern sandbur 0/1
CEGR3 Cenchrus gracillimus Nash slender sandbur 0/1
CELO3 Cenchrus longispinus (Hack.) Fern. mat sandbur    
CECA6 Cenchrus carolinianus Walt.   0/1
CEMY Cenchrus myosuroides Kunth big sandbur 1/1
CESE10 Cenchrus setiger Vahl birdwood grass    
CESE2 Cenchrus setigerus Vahl [orthographic error]   2/0
CESP4 Cenchrus spinifex Cav. coastal sandbur 1/0
CEIN4 Cenchrus incertus M.A. Curtis   1/1
CEPA12 Cenchrus pauciflorus Benth.   0/1
CETR Cenchrus tribuloides L. sanddune sandbur 1/2
CEAM2 Centaurea americana Nutt. American star-thistle 3/1
CECA2 Centaurea calcitrapa L. red star-thistle 0/1
CECY2 Centaurea cyanus L. garden cornflower 4/1
CEDE10 Centaurea depressa Bieb. Iranian knapweed 1/0
CEJA Centaurea jacea L. brownray knapweed 1/1
CEME2 Centaurea melitensis L. Maltese star-thistle 0/1
CEMO Centaurea montana L. perennial cornflower 1/0
CENI2 Centaurea nigra L. lesser knapweed 0/1
CENI3 Centaurea nigrescens Willd. Tyrol knapweed    
CEVO2 Centaurea vochinensis Bernh. ex Reichenb.   0/1
CERO Centaurea rothrockii Greenm. Rothrock's knapweed 2/0
CESC2 Centaurea scabiosa L. greater knapweed 0/1
CESO3 Centaurea solstitialis L. yellow star-thistle 5/1
CESTM Centaurea stoebe L. ssp. micranthos (Gugler) Hayek spotted knapweed    
CEBI2 Centaurea biebersteinii DC.   3/0
CEMA4 Centaurea maculosa auct. non Lam. [misapplied]   4/1
CEBE Centaurium beyrichii (Torr. & Gray ex Torr.) B.L. Robins. quinineweed 2/0
CECA3 Centaurium calycosum (Buckl.) Fern. Arizona centaury 2/2
CECAB Centaurium calycosum (Buckl.) Fern. var. breviflorum Shinners   1/0
CEER5 Centaurium erythraea Rafn European centaury    
CEMI8 Centaurium minus auct. non Moench [misapplied]   0/1
ERCE4 Erythraea centaurium auct.   0/1
CEEX Centaurium exaltatum (Griseb.) W. Wight ex Piper desert centaury 9/2
CEMA19 Centaurium maryannum B.L. Turner gypsum centaury 1/0
CENA Centaurium namophilum Reveal, Broome & Beatley springloving centaury 1/0
CEPU3 Centaurium pulchellum (Sw.) Druce branched centaury 0/1
CESP3 Centaurium spicatum (L.) Fritsch spiked centaury 0/1
CETE2 Centaurium texense (Griseb.) Fern. Lady Bird's centaury 0/1
CEVE3 Centaurium venustum (Gray) B.L. Robins. charming centaury 7/0
CEVEA Centaurium venustum (Gray) B.L. Robins. ssp. abramsii Munz charming centaury 2/0
CEAS Centella asiatica (L.) Urban spadeleaf 2/1
CEER2 Centella erecta (L. f.) Fern. erect centella 3/1
CERU2 Centranthus ruber (L.) DC. red valerian 3/0
CEPU5 Centrosema pubescens Benth. flor de conchitas 1/0
CESA6 Centrosema sagittatum (Humb. & Bonpl. ex Willd.) Brandegee ex Riley arrowleaf butterfly pea 1/0
CEVI2 Centrosema virginianum (L.) Benth. spurred butterfly pea 7/0
BRVI5 Bradburya virginiana (L.) Kuntze   0/1
CETH3 Centrostegia thurberi Gray ex Benth. red triangles 4/0
CEPHA9 Cephaelis Sw. cephaelis 4/0
CEAU Cephalanthera austiniae (Gray) Heller phantom orchid 2/0
EBAU2 Eburophyton austiniae (Gray) Heller   1/0
CEPHA Cephalanthus L. buttonbush 1/1
CEOC2 Cephalanthus occidentalis L. common buttonbush 12/3
CEPHA10 Cephalocereus Pfeiff. cephalocereus 3/0
CECA15 Cephalozia catenulata (Huebener) Lindb. 3/0
CECO7 Cephalozia connivens (Dicks.) Lindb. 2/0
CELU Cephalozia lunulifolia (Dumort.) Dumort. 2/0
CEMA15 Cephalozia macrostachya Kaal. 3/0
CERU4 Cephaloziella rubella (Nees) Warnst. 5/0
CETU4 Cephaloziella turneri (Hook.) Müll. Frib. 4/0
CERAS Cerastium L. mouse-ear chickweed 1/0
CEAR4 Cerastium arvense L. field chickweed 7/1
CEARS2 Cerastium arvense L. ssp. strictum (L.) Ugborogho field chickweed    
CEST3 Cerastium strictum L.   4/0
CEARV3 Cerastium arvense L. ssp. velutinum (Raf.) Ugborogho var. velutinum (Raf.) Britt. field chickweed    
CEVE8 Cerastium velutinum Raf.   0/1
CEBR3 Cerastium brachypodum (Engelm. ex Gray) B.L. Robins. shortstalk chickweed 0/1
CEFOV2 Cerastium fontanum Baumg. ssp. vulgare (Hartman) Greuter & Burdet big chickweed 1/0
CEVU Cerastium vulgatum L. 1762, non 1755   0/1
CEGL2 Cerastium glomeratum Thuill. sticky chickweed 1/0
CEVI3 Cerastium viscosum auct. non L. [misapplied]   1/1
CENU2 Cerastium nutans Raf. nodding chickweed 4/0
CENUN Cerastium nutans Raf. var. nutans nodding chickweed    
CELO6 Cerastium longepedunculatum Muhl. ex Britt.   0/1
CESE4 Cerastium semidecandrum L. fivestamen chickweed 0/1
CETE3 Cerastium texanum Britt. Texas chickweed 2/0
CETO2 Cerastium tomentosum L. snow in summer 2/0
CEER3 Ceratiola ericoides Michx. sand heath 1/0
CETE5 Ceratocephala testiculata (Crantz) Bess. curveseed butterwort 4/0
CEPU12 Ceratodon purpureus (Hedw.) Brid. ceratodon moss 5/0
CESI3 Ceratonia siliqua L. St. John's bread 3/1
CEDE4 Ceratophyllum demersum L. coon's tail 3/2
CETH2 Ceratopteris thalictroides (L.) Brongn. watersprite 1/0
CEWI2 Ceratostigma willmottianum Stapf Chinese-plumbago 5/0
CEJA2 Cercidiphyllum japonicum Sieb. & Zucc. katsura tree 4/0
CERCI2 Cercis L. redbud 1/1
CECA4 Cercis canadensis L. eastern redbud 15/2
CECAC Cercis canadensis L. var. canadensis eastern redbud 3/0
CECAT Cercis canadensis L. var. texensis (S. Wats.) M. Hopkins Texas redbud    
CEOC3 Cercis occidentalis Torr. ex Gray   4/0
CEOR9 Cercis orbiculata Greene California redbud 5/0
CEOCO Cercis occidentalis Torr. ex Gray var. orbiculata (Greene) Tidestrom   4/0
CERCO Cercocarpus Kunth mountain mahogany 2/0
CEIN7 Cercocarpus intricatus S. Wats. littleleaf mountain mahogany 10/0
CELE3 Cercocarpus ledifolius Nutt. curl-leaf mountain mahogany 10/1
CELEI Cercocarpus ledifolius Nutt. var. intercedens Schneid. curl-leaf mountain mahogany    
CELEI4 Cercocarpus ledifolius Nutt. var. intermontanus N. Holmgren   4/0
CELEL Cercocarpus ledifolius Nutt. var. ledifolius curl-leaf mountain mahogany 8/0
CEMO2 Cercocarpus montanus Raf. alderleaf mountain mahogany 3/2
CEMOB Cercocarpus montanus Raf. var. blancheae (Schneid.) F.L. Martin island mountain mahogany    
CEBEB Cercocarpus betuloides Nutt. var. blancheae (Schneid.) Little   4/0
CEMOG Cercocarpus montanus Raf. var. glaber (S. Wats.) F.L. Martin birchleaf mountain mahogany    
CEBE3 Cercocarpus betuloides Nutt.   4/0
CEMOM2 Cercocarpus montanus Raf. var. macrourus (Rydb.) F.L. Martin Klamath mountain mahogany    
CEBEM Cercocarpus betuloides Nutt. var. macrourus (Rydb.) Jepson   1/0
CEMOM Cercocarpus montanus Raf. var. minutiflorus (Abrams) F.L. Martin smooth mountain mahogany    
CEMI3 Cercocarpus minutiflorus Abrams   1/0
CEMOP Cercocarpus montanus Raf. var. paucidentatus (S. Wats.) F.L. Martin hairy mountain mahogany    
CEBR6 Cercocarpus breviflorus Gray   2/0
CETR4 Cercocarpus traskiae Eastw. Catalina Island mountain mahogany 1/0
CEREU Cereus P. Mill. sweetpotato cactus 3/1
CEHE3 Cereus hexagonus (L.) P. Mill. lady of the night cactus 1/0
CEWO Ceropegia woodii Schltr. hearts entangled 3/0
CEAU2 Cestrum aurantiacum Lindl. orange jessamine 1/0
CEDI6 Cestrum diurnum L. day jessamine 1/0
CEEL4 Cestrum elegans (Brongn. ex Neumann) Schltdl. purple cestrum 2/0
CEPU13 Cestrum purpureum (Lindl.) Standl.   1/0
CENO Cestrum nocturnum L. night jessamine 2/0
CEPA9 Cestrum parqui L'Hér. Chilean jessamine 1/0
CESA4 Cestrum salicifolium Jacq. pussywillow jessamine 1/0
CESI Cevallia sinuata Lag. stinging serpent 6/0
CHAEN Chaenactis DC. pincushion 3/0
CHAL Chaenactis alpigena C.W. Sharsmith southern Sierra pincushion 2/0
CHDO Chaenactis douglasii (Hook.) Hook. & Arn. Douglas' dustymaiden 6/0
CHFR Chaenactis fremontii Gray pincushion flower 7/0
CHGL Chaenactis glabriuscula DC. yellow pincushion 3/0
CHGLG2 Chaenactis glabriuscula DC. var. glabriuscula yellow pincushion 1/0
CHTE8 Chaenactis tenuifolia Nutt.   2/0
CHST Chaenactis stevioides Hook. & Arn. Steve's dustymaiden 8/0
CHJA2 Chaenomeles japonica (Thunb.) Lindl. ex Spach Maule's quince 1/0
CHSP12 Chaenomeles speciosa (Sweet) Nakai flowering quince 3/0
CHLA24 Chaenomeles lagenaria (Loisel.) Koidzumi   1/0
CHSU21 Chaenomeles ×superba (Frahm) Rehder quince 1/0
CHMI Chaenorhinum minus (L.) Lange dwarf snapdragon 0/1
CHPR Chaerophyllum procumbens (L.) Crantz spreading chervil 1/2
CHTA Chaerophyllum tainturieri Hook. hairyfruit chervil 5/1
CHWH Chaetadelpha wheeleri Gray ex S. Wats. Wheeler's skeletonweed 2/0
CHAS Chaetopappa asteroides Nutt. ex DC. Arkansas leastdaisy 0/1
CHER2 Chaetopappa ericoides (Torr.) Nesom rose heath 15/0
LEER Leucelene ericoides (Torr.) Greene   0/1
CHHE Chaetopappa hersheyi Blake Guadalupe leastdaisy 1/0
CHMA18 Chaiturus marrubiastrum (L.) Reichenb. lion's tail    
LEMA2 Leonurus marrubiastrum L.   0/1
CHAU2 Chamaebatia australis (Brandeg.) Abrams southern mountain misery 1/0
CHFO Chamaebatia foliolosa Benth. mountain misery 2/1
CHMI2 Chamaebatiaria millefolium (Torr.) Maxim. desert sweet 6/0
CHAB3 Chamaecrista absus (L.) Irwin & Barneby tropical sensitive pea 1/0
CHDI6 Chamaecrista diphylla (L.) Greene twoleaf sensitive pea 4/0
CHFA2 Chamaecrista fasciculata (Michx.) Greene partridge pea 8/1
CHFAF Chamaecrista fasciculata (Michx.) Greene var. fasciculata partridge pea 4/0
CAFA Cassia fasciculata Michx.   4/0
CHGL6 Chamaecrista glandulosa (L.) Greene Jamaican broom 2/0
CHMI6 Chamaecrista mimosoides (L.) Greene chamaecrista 1/0
CHNI2 Chamaecrista nictitans (L.) Moench sensitive partridge pea 3/1
CHNIN2 Chamaecrista nictitans (L.) Moench ssp. nictitans var. nictitans sensitive partridge pea 1/0
CANI4 Cassia nictitans L.   2/0
CHNIP2 Chamaecrista nictitans (L.) Moench ssp. patellaria (DC. ex Collad.) Irwin & Barneby var. patellaria (DC. ex Collad.) Kartesz & Gandhi sensitive partridge pea    
CHPA34 Chamaecrista patellaria (DC. ex Collad.) Greene   1/0
CHRO3 Chamaecrista rotundifolia (Pers.) Greene roundleaf sensitive pea 1/0
CHSE9 Chamaecrista serpens (L.) Greene slender sensitive pea 2/0
CHAMA4 Chamaecyparis Spach cedar 1/0
CHLA Chamaecyparis lawsoniana (A. Murr.) Parl. Port Orford cedar 22/1
CHTH2 Chamaecyparis thyoides (L.) B.S.P. Atlantic white cedar 5/2
CHPA44 Chamaecytisus palmensis (Christ) F.A. Bisby & K.W. Nicholls [excluded] tagasaste    
CYPA17 Cytisus palmensis (Christ) Hutch.   1/0
CHPR14 Chamaecytisus prolifera (L. f.) Link escabon    
CYPR13 Cytisus proliferus L. f.   1/0
CHCA2 Chamaedaphne calyculata (L.) Moench leatherleaf 1/2
CHCO27 Chamaedorea costaricana Oerst. pacaya 3/0
CHLU Chamaelirium luteum (L.) Gray fairywand 4/1
CHNO3 Chamaemelum nobile (L.) All. Roman chamomile    
ANNO2 Anthemis nobilis L.   0/1
CHERN Chamaerhodos erecta (L.) Bunge ssp. nuttallii (Pickering ex Rydb.) Hultén Nuttall's little rose    
CHNU8 Chamaerhodos nuttallii Pickering ex Rydb.   0/1
CHAMA8 Chamaesaracha (Gray) Benth. five eyes 1/0
CHCO Chamaesaracha coniodes (Moric. ex Dunal) Britt. gray five eyes 0/1
CHCO2 Chamaesaracha coronopus (Dunal) Gray greenleaf five eyes 2/1
CHCR2 Chamaesaracha crenata Rydb. toothed five eyes 1/0
CHSO Chamaesaracha sordida (Dunal) Gray hairy five eyes 2/0
CHVI9 Chamaesaracha villosa Rydb. TransPecos five eyes 1/0
CHAL11 Chamaesyce albomarginata (Torr. & Gray) Small whitemargin sandmat 2/0
EUAL4 Euphorbia albomarginata Torr. & Gray   5/0
CHAR8 Chamaesyce articulata (Brum.) Britt. jointed sandmat 1/0
CHCU4 Chamaesyce cumulicola Small coastal dune sandmat 1/0
CHFE3 Chamaesyce fendleri (Torr. & Gray) Small Fendler's sandmat 3/1
CHGE2 Chamaesyce geyeri (Engelm.) Small Geyer's sandmat 0/1
CHGL13 Chamaesyce glyptosperma (Engelm.) Small ribseed sandmat 3/1
CHHU3 Chamaesyce humistrata (Engelm.) Small spreading sandmat 0/2
EUHU Euphorbia humistrata Engelm. ex Gray   1/0
CHHY3 Chamaesyce hyssopifolia (L.) Small hyssopleaf sandmat 2/0
CHLA10 Chamaesyce lata (Engelm.) Small hoary sandmat 0/1
CHMA15 Chamaesyce maculata (L.) Small spotted sandmat 0/2
EUMA7 Euphorbia maculata L.   2/0
EUSU Euphorbia supina Raf.   2/0
CHME5 Chamaesyce melanadenia (Torr.) Millsp. red-gland spurge    
EUME3 Euphorbia melanadenia Torr.   4/0
CHMI8 Chamaesyce missurica (Raf.) Shinners prairie sandmat    
CHPE7 Chamaesyce petaloidea (Engelm.) Small   0/1
CHZY Chamaesyce zygophylloides (Boiss.) Small   0/1
CHNU9 Chamaesyce nutans (Lag.) Small eyebane 1/0
CHPR9 Chamaesyce preslii (Guss.) Arthur   0/1
EUNU Euphorbia nutans Lag.   4/0
CHPO6 Chamaesyce polygonifolia (L.) Small seaside sandmat 0/1
CHPR6 Chamaesyce prostrata (Ait.) Small prostrate sandmat    
EUPR3 Euphorbia prostrata Ait.   1/0
CHSE4 Chamaesyce serpens (Kunth) Small matted sandmat 1/1
CHSE6 Chamaesyce serpyllifolia (Pers.) Small thymeleaf sandmat 0/1
CHSES Chamaesyce serpyllifolia (Pers.) Small ssp. serpyllifolia thymeleaf sandmat 2/0
CHAL12 Chamaesyce albicaulis (Rydb.) Rydb.   0/1
CHSE8 Chamaesyce setiloba (Engelm. ex Torr.) Millsp. ex Parish Yuma sandmat 2/0
CHST8 Chamaesyce stictospora (Engelm.) Small slimseed sandmat 0/1
CHVE5 Chamaesyce vermiculata (Raf.) House wormseed sandmat    
CHRA4 Chamaesyce rafinesquei (Greene) Arthur   0/1
CHUN4 Chamelaucium uncinatum Schauer Geraldton wax 1/0
CHAN9 Chamerion angustifolium (L.) Holub fireweed 1/0
CHANA2 Chamerion angustifolium (L.) Holub ssp. angustifolium fireweed 4/0
CHAN80 Chamaenerion angustifolium (L.) Scop.   1/1
EPAN2 Epilobium angustifolium L.   11/1
CHANC Chamerion angustifolium (L.) Holub ssp. circumvagum (Mosquin) Hoch fireweed    
CHDA2 Chamerion danielsii D. Löve   2/0
CHLA13 Chamerion latifolium (L.) Holub dwarf fireweed 2/0
CHLA12 Chamaenerion latifolium (L.) Sweet   0/1
CHSU11 Chamerion subdentatum (Rydb.) A. Löve & D. Löve   3/0
CHFL2 Chapmannia floridana Torr. & A. Gray Florida alicia 1/0
CHTO Chaptalia tomentosa Vent. woolly sunbonnets 2/0
CHLA5 Chasmanthium latifolium (Michx.) Yates Indian woodoats 12/1
UNLA3 Uniola latifolia Michx.   0/2
CHLA6 Chasmanthium laxum (L.) Yates slender woodoats 4/1
UNLA4 Uniola laxa (L.) B.S.P.   0/2
CHNI Chasmanthium nitidum (Baldw.) Yates shiny woodoats    
UNNI2 Uniola nitida Baldw.   0/1
CHOR3 Chasmanthium ornithorhynchum (Steud.) Yates birdbill woodoats    
UNOR2 Uniola ornithorhyncha Steud.   0/1
CHSE2 Chasmanthium sessiliflorum (Poir.) Yates longleaf woodoats 6/1
UNSE2 Uniola sessiliflora Poir.   0/1
CHAL5 Cheilanthes alabamensis (Buckl.) Kunze Alabama lipfern 1/1
CHBO5 Cheilanthes bonariensis (Willd.) Proctor golden lipfern 3/0
CHCL Cheilanthes clevelandii D.C. Eat. Cleveland's lipfern 2/0
CHEA Cheilanthes eatonii Baker Eaton's lipfern 2/0
CHFE Cheilanthes feei T. Moore slender lipfern 5/1
CHFE2 Cheilanthes fendleri Hook. Fendler's lipfern 1/0
CHGR Cheilanthes gracillima D.C. Eat. lace lipfern 2/0
CHHO Cheilanthes horridula Maxon rough lipfern 4/0
CHLA2 Cheilanthes lanosa (Michx.) D.C. Eat. hairy lipfern 2/1
CHLE2 Cheilanthes lendigera (Cav.) Sw. nitbearing lipfern 1/0
CHLI Cheilanthes lindheimeri Hook. fairyswords 2/0
CHPA4 Cheilanthes parryi (D.C. Eat.) Domin Parry's lipfern 1/0
CHTO2 Cheilanthes tomentosa Link woolly lipfern 2/1
CHVI Cheilanthes villosa Davenport ex Maxon villous lipfern 3/0
CHWO Cheilanthes wootonii Maxon beaded lipfern 4/0
CHWR Cheilanthes wrightii Hook. Wright's lipfern 1/0
CHYA Cheilanthes yavapensis Reeves ex Windham graceful lipfern 2/0
CHIN21 Cheiridopsis inaequalis L. Bolus 2/0
CHMA2 Chelidonium majus L. celandine 5/1
CHGL2 Chelone glabra L. white turtlehead 3/2
CHLY2 Chelone lyonii Pursh pink turtlehead 1/1
CHOB3 Chelone obliqua L. red turtlehead 2/2
CHAL7 Chenopodium album L. lambsquarters 2/2
CHAM Chenopodium ambrosioides L. Mexican tea 3/2
CHAT Chenopodium atrovirens Rydb. pinyon goosefoot 1/0
CHBEB Chenopodium berlandieri Moq. var. boscianum (Moq.) H.A. Wahl pitseed goosefoot    
CHBO9 Chenopodium boscianum Moq.   0/1
CHBO Chenopodium bonus-henricus L. good King Henry 1/1
CHBO2 Chenopodium botrys L. Jerusalem oak goosefoot 1/1
CHCA3 Chenopodium californicum (S. Wats.) S. Wats. California goosefoot 1/0
CHCA4 Chenopodium capitatum (L.) Aschers. blite goosefoot    
BLCA Blitum capitatum L.   0/1
CHFR3 Chenopodium fremontii S. Wats. Fremont's goosefoot 0/1
CHGL3 Chenopodium glaucum L. oakleaf goosefoot 1/1
CHIN2 Chenopodium incanum (S. Wats.) Heller mealy goosefoot 0/1
CHLE4 Chenopodium leptophyllum (Moq.) Nutt. ex S. Wats. narrowleaf goosefoot 0/1
CHMU Chenopodium multifidum L. cutleaf goosefoot    
ROMU4 Roubieva multifida (L.) Moq.   0/1
CHMU2 Chenopodium murale L. nettleleaf goosefoot 1/1
CHPO Chenopodium polyspermum L. manyseed goosefoot 0/1
CHRU Chenopodium rubrum L. red goosefoot 1/2
CHSI2 Chenopodium simplex (Torr.) Raf. mapleleaf goosefoot    
CHHY Chenopodium hybridum auct. non L. [misapplied]   1/1
CHUR Chenopodium urbicum L. city goosefoot 0/1
CHVU Chenopodium vulvaria L. stinking goosefoot 0/1
CHILO Chilopsis D. Don desert willow 0/1
CHLI2 Chilopsis linearis (Cav.) Sweet desert willow 14/0
CHLIA Chilopsis linearis (Cav.) Sweet ssp. arcuata (Fosberg) Henrickson desert willow 1/0
CHPA43 Chiloscyphus pallescens (Ehrh. ex Hoffm.) Dumort. 2/0
CHMA3 Chimaphila maculata (L.) Pursh striped prince's pine 9/1
CHME Chimaphila menziesii (R. Br. ex D. Don) Spreng. little prince's pine 3/0
CHUM Chimaphila umbellata (L.) W. Bart. pipsissewa 5/1
CHUMO2 Chimaphila umbellata (L.) W. Bart. ssp. occidentalis (Rydb.) Hultén pipsissewa 3/0
CHION Chionanthus L. fringetree 1/1
CHCO12 Chionanthus compactus Sw. bridgotree 2/0
CHDO4 Chionanthus domingensis Lam. white rosewood 1/0
CHVI3 Chionanthus virginicus L. white fringetree 14/3
CHION4 Chionodoxa Boiss. chionodoxa 1/0
CHFO9 Chionodoxa forbesii Baker glory of the snow 1/0
CHLU2 Chionodoxa luciliae auct. non Boiss. [misapplied]   11/0
CHSA11 Chionodoxa sardensis Whittall ex Barr & Sugden glory-of-the-snow 2/0
CHJA Chionophila jamesii Benth. Rocky Mountain snowlover 1/0
CHSP11 Chloracantha spinosa (Benth.) Nesom spiny chloracantha 3/0
ASSP3 Aster spinosus Benth.   1/0
CHLOR Chloris Sw. windmill grass 2/0
CHAN Chloris andropogonoides Fourn. slimspike windmill grass 0/1
CHBA10 Chloris barbata Sw. swollen fingergrass 2/0
CHIN4 Chloris inflata Link   2/0
CHCA6 Chloris canterai Arech. Paraguayan windmill grass 2/0
CHCI Chloris ciliata Sw. fringed windmill grass 0/1
CHCU2 Chloris cucullata Bisch. hooded windmill grass 1/1
CHEL3 Chloris elata Desv. tall windmill grass    
CHPO10 Chloris polydactyla Sw.   2/1
CHGA2 Chloris gayana Kunth Rhodes grass 1/1
CHSU3 Chloris ×subdolichostachya Muell. (pro sp.) [cucullata × verticillata] shortspike windmill grass 0/1
CHLA3 Chloris latisquamea Nash   0/1
CHSU4 Chloris submutica Kunth Mexican windmill grass 1/0
CHTE Chloris texensis Nash Texas windmill grass 1/1
CHVE Chloris ventricosa R. Br. Australian windmill grass 1/0
CHVE2 Chloris verticillata Nutt. tumble windmill grass 0/2
CHVI4 Chloris virgata Sw. feather fingergrass 3/1
CHLOR3 Chlorogalum Kunth soapplant 1/0
CHPO3 Chlorogalum pomeridianum (DC.) Kunth wavyleaf soap plant 3/0
CHPOM Chlorogalum pomeridianum (DC.) Kunth var. minus Hoover wavyleaf soap plant 2/0
CHPUP2 Chlorogalum purpureum Brandeg. var. purpureum purple amole 2/0
CHDU Choisya dumosa (Torr.) Gray Mexican orange 5/0
CHJU Chondrilla juncea L. rush skeletonweed 1/1
CHIN22 Chorisia insignis Kunth white silk floss tree 2/0
CHSP13 Chorisia speciosa St.-Hil. silk-floss tree 4/0
CHTE2 Chorispora tenella (Pallas) DC. crossflower 8/0
CHORI2 Chorizanthe R. Br. ex Benth. spineflower 1/0
CHBR Chorizanthe brevicornu Torr. brittle spineflower 2/0
CHBR2 Chorizanthe breweri S. Wats. San Luis Obispo spineflower 2/0
CHCO6 Chorizanthe corrugata (Torr.) Torr. & Gray wrinkled spineflower 1/0
CHFIF Chorizanthe fimbriata Nutt. var. fimbriata fringed spineflower 2/0
CHPR4 Chorizanthe procumbens Nutt. prostrate spineflower 2/0
CHRI Chorizanthe rigida (Torr.) Torr. & Gray devil's spineflower 5/0
CHXA2 Chorizanthe xanti S. Wats. Riverside spineflower 1/0
CHIV Chromolaena ivifolia (L.) King & H.E. Robins. ivyleaf thoroughwort 1/0
CHOD Chromolaena odorata (L.) King & H.E. Robins. Jack in the bush 2/0
EUOD Eupatorium odoratum L.   1/0
CHME3 Chrysactinia mexicana Gray damianita 11/0
CHRYS2 Chrysanthemum L. daisy 4/0
CHAR13 Chrysanthemum arcticum L. Arctic daisy 0/1
CHIC Chrysobalanus icaco L. icaco coco plum 9/0
CHVI5 Chrysogonum virginianum L. green and gold 1/1
CHVIA Chrysogonum virginianum L. var. australe (Alexander ex Small) H.E. Ahles green and gold 1/0
CHCHC4 Chrysolepis chrysophylla (Dougl. ex Hook.) Hjelmqvist var. chrysophylla giant chinquapin 5/0
CACH6 Castanopsis chrysophylla (Dougl. ex Hook.) A. DC.   1/1
CHCHM Chrysolepis chrysophylla (Dougl. ex Hook.) Hjelmqvist var. minor (Benth.) Munz giant chinquapin    
CACHM Castanopsis chrysophylla (Dougl. ex Hook.) A. DC. var. minor (Benth.) A. DC.   1/0
CHSE11 Chrysolepis sempervirens (Kellogg) Hjelmqvist bush chinquapin 2/0
CASE8 Castanopsis sempervirens (Kellogg) Dudley ex Merriam   1/0
CHCA10 Chrysophyllum cainito L. star apple 1/0
CHOL Chrysophyllum oliviforme L. satinleaf 3/0
CHPA11 Chrysopogon pauciflorus (Chapman) Benth. ex Vasey Florida false beardgrass 0/1
CHRYS7 Chrysopsis (Nutt.) Ell. goldenaster 1/0
CHFL8 Chrysopsis floridana Small Florida goldenaster    
CHMAF2 Chrysopsis mariana (L.) Ell. var. floridana (Small) Fern.   1/0
CHGO Chrysopsis gossypina (Michx.) Ell. cottony goldenaster 0/1
CHMA14 Chrysopsis mariana (L.) Ell. Maryland goldenaster 6/1
HEMA10 Heterotheca mariana (L.) Shinners   2/0
CHPI8 Chrysopsis pilosa Nutt. soft goldenaster 2/1
CHALS3 Chrysosplenium alternifolium L. var. sibiricum Seringe ex DC. Iowa golden saxifrage    
CHIO Chrysosplenium iowense Rydb.   0/1
CHAM2 Chrysosplenium americanum Schwein. ex Hook. American golden saxifrage 2/1
CHRYS9 Chrysothamnus Nutt. rabbitbrush 1/0
CHMO2 Chrysothamnus molestus (Blake) L.C. Anders. Arizona rabbitbrush 1/0
CHVI8 Chrysothamnus viscidiflorus (Hook.) Nutt. yellow rabbitbrush 10/1
CHMO12 Chusquea montana Phil. Argentina mountain bamboo 2/0
CHQU2 Chusquea quila Kunth Argentinian quila 1/0
CIBOT Cibotium Kaulfuss manfern 3/0
CIME8 Cibotium menziesii Hook. hapu'u li 1/0
CIIN Cichorium intybus L. chicory 9/1
CIBU Cicuta bulbifera L. bulblet-bearing water hemlock 0/1
CIDO Cicuta douglasii (DC.) Coult. & Rose western water hemlock 2/1
CIMA2 Cicuta maculata L. spotted water hemlock 8/2
CIPU Cinchona pubescens Vahl quinine 1/0
CIST70 Cinclidium stygium Sw. in Schrad. cinclidium moss 2/0
CINER Cineraria L. cineraria 2/0
CIMU3 Cineraria multiflora L'Herit. 1/0
CISA4 Cineraria saxifraga D.C. wild cineraria 2/0
CIAR2 Cinna arundinacea L. sweet woodreed 2/3
CILA2 Cinna latifolia (Trev. ex Goepp.) Griseb. drooping woodreed 1/2
CIBU2 Cinnamomum burmannii (Nees & Th. Nees) Nees ex Blume Padang cassia 2/0
CICA Cinnamomum camphora (L.) J. Presl camphortree 11/0
CIAL Circaea alpina L. small enchanter's nightshade 1/2
CIALP2 Circaea alpina L. ssp. pacifica (Aschers. & Magnus) Raven small enchanter's nightshade 2/0
CILU Circaea lutetiana L. broadleaf enchanter's nightshade 0/1
CILUC Circaea lutetiana L. ssp. canadensis (L.) Aschers. & Magnus broadleaf enchanter's nightshade    
CIQUC2 Circaea quadrisulcata (Maxim.) Franch. & Savigny var. canadensis (L.) Hara   1/0
CICI70 Cirriphyllum cirrosum (Schwaegr. in Schultes) Grout cirriphyllum moss 3/0
CIRSI Cirsium P. Mill. thistle 4/0
CIAL2 Cirsium altissimum (L.) Hill tall thistle 4/1
CIAN Cirsium andersonii (Gray) Petrak rose thistle 1/0
CIAN2 Cirsium andrewsii (Gray) Jepson Franciscan thistle 1/0
CIAR3 Cirsium arizonicum (Gray) Petrak Arizona thistle 6/0
CIAR4 Cirsium arvense (L.) Scop. Canada thistle 9/2
CIBR2 Cirsium brevistylum Cronq. clustered thistle 1/0
CICA10 Cirsium calcareum (M.E. Jones) Woot. & Standl. Cainville thistle 4/0
CICA11 Cirsium canescens Nutt. prairie thistle    
CINE3 Cirsium nebraskense (Britt.) Lunell   0/1
CIPL2 Cirsium plattense (Rydb.) Cockerell ex Daniels   0/1
CICA7 Cirsium carolinianum (Walt.) Fern. & Schub. soft thistle 2/0
CICL2 Cirsium clokeyi Blake whitespine thistle 1/0
CICY Cirsium cymosum (Greene) J.T. Howell peregrine thistle 1/0
CIDI Cirsium discolor (Muhl. ex Willd.) Spreng. field thistle 3/1
CIDR2 Cirsium drummondii Torr. & Gray dwarf thistle 1/0
CIEA Cirsium eatonii (Gray) B.L. Robins. Eaton's thistle 1/0
CIED Cirsium edule Nutt. edible thistle 3/0
CIFL Cirsium flodmanii (Rydb.) Arthur Flodman's thistle 0/1
CIFO Cirsium foliosum (Hook.) DC. elk thistle 3/0
CIFOC Cirsium fontinale (Greene) Jepson var. campylon (H.K. Sharsmith) Pilz ex Keil & C. Turner Mt Hamilton thistle    
CICA5 Cirsium campylon H.K. Sharsmith   1/0
CIFOF Cirsium fontinale (Greene) Jepson var. fontinale fountain thistle 3/0
CIFOO Cirsium fontinale (Greene) Jepson var. obispoense J.T. Howell Chorro Creek Bog thistle 1/0
CIHI Cirsium hillii (Canby) Fern. Hill's thistle 0/1
CIHO2 Cirsium horridulum Michx. yellow thistle 10/2
CIHOH Cirsium horridulum Michx. var. horridulum yellow thistle    
CASP16 Carduus spinosissimus Walt.   1/0
CILE2 Cirsium lecontei Torr. & Gray Le Conte's thistle 1/0
CIMO Cirsium mohavense (Greene) Petrak Mojave thistle 2/0
CIMU Cirsium muticum Michx. swamp thistle 0/1
CINE Cirsium neomexicanum Gray New Mexico thistle 9/0
CIUT Cirsium utahense Petrak   2/0
CIOC Cirsium occidentale (Nutt.) Jepson cobwebby thistle 1/0
CIOCC4 Cirsium occidentale (Nutt.) Jepson var. californicum (Gray) Keil & C. Turner cobwebby thistle 2/0
CICA3 Cirsium californicum Gray   2/0
CIOCC Cirsium occidentale (Nutt.) Jepson var. candidissimum (Greene) J.F. Macbr. snowy thistle 1/0
CIPA2 Cirsium pastoris J.T. Howell   7/0
CIOCO Cirsium occidentale (Nutt.) Jepson var. occidentale cobwebby thistle    
CICO6 Cirsium coulteri Harvey & Gray   1/0
CIOC2 Cirsium ochrocentrum Gray yellowspine thistle 4/1
CIPA5 Cirsium pallidum Woot. & Standl. pale thistle 1/0
CIPA6 Cirsium palustre (L.) Scop. marsh thistle 0/1
CIPA Cirsium parryi (Gray) Petrak Parry's thistle 1/0
CIPE4 Cirsium peckii Henderson Steen Mountain thistle 3/0
CIPI Cirsium pitcheri (Torr. ex Eat.) Torr. & Gray sand dune thistle 7/1
CIPU4 Cirsium pumilum (Nutt.) Spreng. pasture thistle 2/0
CIOD Cirsium odoratum (Muhl. ex W. Bart.) Petrak   0/1
CIQU2 Cirsium quercetorum (Gray) Jepson Alameda County thistle 1/0
CISC2 Cirsium scariosum Nutt. meadow thistle 2/0
CITI Cirsium tioganum (Congd.) Petrak   1/0
CITIT Cirsium tioganum (Congd.) Petrak var. tioganum (Congd.) Petrak [superfluous autonym]   2/0
CITE2 Cirsium texanum Buckl. Texas thistle 2/0
CIUN Cirsium undulatum (Nutt.) Spreng. wavyleaf thistle 5/1
CIUNT Cirsium undulatum (Nutt.) Spreng. var. tracyi (Rydb.) Welsh Tracy's thistle    
CITR4 Cirsium tracyi (Rydb.) Petrak   5/0
CIVI Cirsium virginianum (L.) Michx. Virginia thistle 0/1
CIVU Cirsium vulgare (Savi) Ten. bull thistle 5/0
CILA8 Cirsium lanceolatum (L.) Scop., non Hill   0/1
CIPA4 Cissampelos pareira L. pareira brava 1/0
CIAN3 Cissus antarctica Vent. kangaroo vine 1/0
CIQU5 Cissus quadrangularis L. veldt-grape 2/0
CITR2 Cissus trifoliata (L.) L. sorrelvine 0/1
CIIN2 Cissus incisa auct. non Des Moulins [misapplied]   2/1
CIMA4 Cistanthe maritima (Nutt.) Hershkovitz seaside pussypaws    
CAMA2 Calandrinia maritima Nutt.   2/0
CIMO5 Cistanthe monosperma (Greene) Hershkovitz oneseed pussypaws 2/0
CAMO6 Calyptridium monospermum Greene   2/0
CIUM Cistanthe umbellata (Torr.) Hershkovitz Mt. Hood pussypaws 4/0
CIUMC Cistanthe umbellata (Torr.) Hershkovitz var. caudicifera (Gray) Kartesz & Gandhi Mt. Hood pussypaws 1/0
CIUMU Cistanthe umbellata (Torr.) Hershkovitz var. umbellata Mt. Hood pussypaws    
CAUM2 Calyptridium umbellatum (Torr.) Greene   4/0
SPUM Spraguea umbellata Torr.   2/0
CISTU Cistus L. rockrose 4/0
CILA10 Cistus ladanifer L. common gum cistus    
CILA6 Cistus ladaniferus L. [orthographic variant]   4/0
CIMO7 Cistus monspeliensis L. Montpelier cistus 1/0
CIPU8 Cistus pulverulentus Pourr. 1/0
CIPU7 Cistus ×purpureus Lam.    
CIPU9 Cistus purpureus Lam. [hybrid]   1/0
CICA8 Citharexylum caudatum L. juniper berry 1/0
CISP3 Citharexylum spinosum L. spiny fiddlewood 1/0
CICO7 Citrullus colocynthis (L.) Schrad. colocynth 3/0
CILA3 Citrullus lanatus (Thunb.) Matsumura & Nakai watermelon 1/0
CILAL Citrullus lanatus (Thunb.) Matsumura & Nakai var. lanatus watermelon    
CIVU3 Citrullus vulgaris Schrad.   3/0
CIHY2 Citrus hystrix DC. 1/0
CILI5 Citrus ×limon (L.) Burm. f. (pro sp.) [medica × aurantifolia] lemon    
CILI Citrus limon (L.) Burm. f. [hybrid]   2/0
CIPA3 Citrus ×paradisi Macfad. (pro sp.) [maxima × sinensis] grapefruit 3/0
CISI3 Citrus ×sinensis (L.) Osbeck (pro sp.) [maxima × reticulata] sweet orange    
CISI Citrus sinensis (L.) Osbeck [hybrid]   3/0
CLAR60 Cladina arbuscula (Wallr.) Hale & W.L. Culb. reindeer lichen    
CLSY2 Cladonia sylvatica auct.   1/0
CLSU7 Cladina subtenuis (Abbayes) Hale & Culb. reindeer lichen 1/0
CLCA2 Cladium californicum (S. Wats.) O'Neill California sawgrass 2/0
CLMA Cladium mariscoides (Muhl.) Torr. smooth sawgrass 2/1
MAMA20 Mariscus mariscoides (Muhl.) Kuntze   0/1
CLMAJ Cladium mariscus (L.) Pohl ssp. jamaicense (Crantz) Kükenth. Jamaica swamp sawgrass 2/0
CLJA Cladium jamaicense Crantz   3/0
MAJA3 Mariscus jamaicensis (Crantz) Britt.   0/1
CLPO60 Cladonia pocillum (Ach.) Grognot cup lichen 1/0
CLADR Cladrastis Raf. yellowwood 1/1
CLKE Cladrastis kentukea (Dum.-Cours.) Rudd Kentucky yellowwood 8/0
CLLU Cladrastis lutea (Michx. f.) K. Koch   10/2
CLARK Clarkia Pursh clarkia 11/0
CLAF Clarkia affinis H.F. & M.E. Lewis chaparral clarkia 2/0
CLAM Clarkia amoena (Lehm.) A. Nels. & J.F. Macbr. farewell to spring 4/0
CLAMW Clarkia amoena (Lehm.) A. Nels. & J.F. Macbr. ssp. whitneyi (Gray) H.F. & M.E. Lewis Whitney's clarkia    
GOWH Godetia whitneyi (Gray) T. Moore   3/0
CLBO Clarkia bottae (Spach) H.F. & M.E. Lewis Botta's clarkia 3/0
CLCO Clarkia concinna (Fisch. & C.A. Mey.) Greene red ribbons 2/0
CLCY Clarkia cylindrica (Jepson) H.F. & M.E. Lewis speckled clarkia 2/0
CLCYC Clarkia cylindrica (Jepson) H.F. & M.E. Lewis ssp. clavicarpa W.S. Davis speckled clarkia 4/0
CLDA Clarkia davyi (Jepson) H.F. & M.E. Lewis Davy's clarkia 1/0
CLLA Clarkia lassenensis (Eastw.) H.F. & M.E. Lewis Mt. Lassen clarkia 4/0
CLLE2 Clarkia lewisii Raven & Parnell Lewis' clarkia 2/0
CLPU2 Clarkia purpurea (W. Curtis) A. Nels. & J.F. Macbr. winecup clarkia 1/0
CLPUQ Clarkia purpurea (W. Curtis) A. Nels. & J.F. Macbr. ssp. quadrivulnera (Dougl. ex Lindl.) H.F. & M.E. Lewis winecup clarkia 4/0
CLPUV Clarkia purpurea (W. Curtis) A. Nels. & J.F. Macbr. ssp. viminea (Dougl. ex Hook.) H.F. & M.E. Lewis winecup clarkia 2/0
CLRH Clarkia rhomboidea Dougl. ex Hook. diamond clarkia 7/0
CLRU Clarkia rubicunda (Lindl.) H.F. & M.E. Lewis ruby chalice clarkia 1/0
CLSP Clarkia speciosa H.F. & M.E. Lewis redspot clarkia 3/0
CLUN Clarkia unguiculata Lindl. elegant clarkia 4/0
CLWI Clarkia williamsonii (Dur. & Hilg.) H.F. & M.E. Lewis Fort Miller clarkia 12/0
CLAYT Claytonia L. springbeauty 1/0
CLCA Claytonia caroliniana Michx. Carolina springbeauty 1/1
CLCO3 Claytonia cordifolia S. Wats. heartleaf springbeauty 1/0
CLEXE2 Claytonia exigua Torr. & Gray ssp. exigua serpentine springbeauty    
MOSPR Montia spathulata (Dougl. ex Hook.) T.J. Howell var. rosulata (Eastw.) J.T. Howell   1/0
CLGY2 Claytonia gypsophiloides Fisch. & C.A. Mey. gypsum springbeauty    
MOGY2 Montia gypsophiloides (Fisch. & C.A. Mey.) T.J. Howell   1/0
CLLA2 Claytonia lanceolata Pall. ex Pursh lanceleaf springbeauty 3/0
CLLAL Claytonia lanceolata Pall. ex Pursh var. lanceolata lanceleaf springbeauty 1/0
CLME Claytonia megarhiza (A. Gray) Parry ex S. Watson alpine springbeauty 1/0
CLPA5 Claytonia parviflora Dougl. ex Hook. streambank springbeauty 1/0
CLPAP Claytonia parviflora Dougl. ex Hook. ssp. parviflora streambank springbeauty 2/0
CLPE Claytonia perfoliata Donn ex Willd. miner's lettuce 2/0
CLPEP Claytonia perfoliata Donn ex Willd. ssp. perfoliata miner's lettuce 5/0
LIPE5 Limnia perfoliata (Donn ex Willd.) Haw.   0/1
MOPE3 Montia perfoliata (Donn ex Willd.) T.J. Howell   7/0
CLSA3 Claytonia saxosa Brandeg. Brandegee's springbeauty    
MOSA3 Montia saxosa (Brandeg.) Brandeg. ex B.L. Robins.   1/0
CLSIB Claytonia sibirica L. var. bulbifera Gray Siberian springbeauty 2/0
CLSIS Claytonia sibirica L. var. sibirica Siberian springbeauty 4/0
CLUM Claytonia umbellata S. Wats. Great Basin springbeauty 3/0
CLVI3 Claytonia virginica L. Virginia springbeauty 12/1
CLDI Cleistes divaricata (L.) Ames rosebud orchid 1/0
PODI9 Pogonia divaricata (L.) R. Br. ex Ait. f.   0/1
CLEIS3 Cleistocactus Lem. cleistocactus 2/0
CLIC2 Cleistocactus icosagonus (Kunth) F.A.C. Weber    
BOIC Borzicactus icosagonus (Kunth) Britton & Rose   3/0
CLEMA Clematis L. leather flower 7/1
CLAD Clematis addisonii Britt. Addison's leather flower 5/0
VIAD5 Viorna addisonii (Britt.) Small   0/1
CLCO2 Clematis columbiana (Nutt.) Torr. & Gray rock clematis 9/0
CLCOC2 Clematis columbiana (Nutt.) Torr. & Gray var. columbiana rock clematis    
CLPS2 Clematis pseudoalpina (Kuntze) A. Nels.   7/0
CLCR Clematis crispa L. swamp leather flower 7/1
VICR3 Viorna crispa (L.) Small   0/1
CLDR Clematis drummondii Torr. & Gray Drummond's clematis 2/0
CLFR Clematis fremontii S. Wats. Fremont's leather flower 2/0
VIFR Viorna fremontii (S. Wats.) Heller   0/1
CLGL Clematis glaucophylla Small whiteleaf leather flower    
VIGL3 Viorna glaucophylla (Small) Small   0/1
CLHE6 Clematis henryi Oliv. 1/0
CLHIS Clematis hirsutissima Pursh var. scottii (Porter) Erickson Scott's clematis    
VISC2 Viorna scottii (Porter) Rydb.   0/1
CLLA3 Clematis lasiantha Nutt. pipestem clematis 5/0
CLLI2 Clematis ligusticifolia Nutt. western white clematis 10/1
CLMO10 Clematis montana Buch.-Ham. ex DC. 1/0
CLOCO Clematis occidentalis (Hornem.) DC. var. occidentalis western blue virginsbower    
ATAM2 Atragene americana Sims   0/1
ATOC Atragene occidentalis Hornem.   1/0
CLVE3 Clematis verticillaris DC.   3/0
CLOC Clematis ochroleuca Ait. curlyheads 1/0
VIOC2 Viorna ochroleuca (Ait.) Small   0/1
VIOV3 Viorna ovata (Pursh) Small   0/1
CLPI Clematis pitcheri Torr. & Gray bluebill 3/0
CLPIP Clematis pitcheri Torr. & Gray var. pitcheri bluebill    
CLFI Clematis filifera Benth.   6/0
VIPI Viorna pitcheri (Torr. & Gray) Britt.   0/1
CLRE Clematis reticulata Walter netleaf leather flower 1/0
CLTE4 Clematis terniflora DC. sweet autumn virginsbower 3/0
CLDI7 Clematis dioscoreifolia Levl. & Vaniot   1/0
CLVE Clematis versicolor Small ex Rydb. pale leather flower    
VIVE3 Viorna versicolor (Small ex Rydb.) Small   0/1
CLVI4 Clematis viorna L. vasevine 2/0
VIVI8 Viorna viorna (L.) Small   0/1
CLVI5 Clematis virginiana L. devil's darning needles 7/2
CLVI6 Clematis vitalba L. evergreen clematis 2/0
CLEOM Cleome L. spiderflower 6/0
CLGY Cleome gynandra L. spiderwisp 2/0
GYGY Gynandropsis gynandra (L.) Briq.   1/0
CLHA Cleome hassleriana Chod. pink queen    
CLSP8 Cleome spinosa auct. non Jacq. [misapplied]   1/0
CLHI6 Cleome hirta (Klotzsch) Oliv. 1/0
CLIS Cleome isomeris Greene bladderpod spiderflower 3/0
ISAR Isomeris arborea Nutt.   9/0
CLLU2 Cleome lutea Hook. yellow spiderflower 4/1
CLLUJ Cleome lutea Hook. var. jonesii J.F. Macbr. Jones spiderflower    
CLJO Cleome jonesii (J.F. Macbr.) Tidestrom   3/0
CLPL Cleome platycarpa Torr. golden spiderflower 1/0
CLSE Cleome serrulata Pursh Rocky Mountain beeplant 10/1
CLSP2 Cleome sparsifolia S. Wats. fewleaf spiderflower 3/0
CLSP3 Cleome spinosa Jacq. spiny spiderflower 1/1
CLVI9 Cleome viscosa L. Asian spiderflower 1/0
CLAN Cleomella angustifolia Torr. narrowleaf rhombopod 0/1
CLHI2 Cleomella hillmanii A. Nels. Hillman's stinkweed 1/0
CLPA3 Cleomella palmeriana M.E. Jones Rocky Mountain stickweed 2/0
CLPL2 Cleomella plocasperma S. Wats. twisted cleomella 3/0
CLERM Clermontia Gaud. clermontia 2/0
CLBU Clerodendrum bungei Steud. rose glorybower 1/0
CLJA3 Clerodendrum japonicum (Thunb.) Sweet Japanese glorybower    
CLSQ3 Clerodendrum squamatum Vahl   1/0
CLAC3 Clethra acuminata Michx. mountain sweetpepperbush 1/1
CLAL3 Clethra alnifolia L. coastal sweetpepperbush 11/2
CLPU6 Clianthus puniceus (G. Don) Sol. Ex Lindl. glory-pea 2/0
CLER Clibadium erosum (Sw.) DC. jackass breadnut 1/0
CLCY5 Clidemia cymosa (Wendl. ex Spreng.) Alain camasey terciopelo 2/0
CLHI3 Clidemia hirta (L.) D. Don soapbush 1/0
CLMO2 Cliftonia monophylla (Lam.) Britt. ex Sarg. buckwheat tree 5/0
CLDE70 Climacium dendroides (Hedw.) Web. & Mohr tree climacium moss 4/0
CLAR5 Clinopodium arkansanum (Nutt.) House limestone calamint    
CLGL3 Clinopodium glabrum (Nutt.) Kuntze   0/1
CLGL4 Clinopodium glabellum (Michx.) Kuntze Ozark calamint 0/1
CLVU Clinopodium vulgare L. wild basil 3/1
CLINT Clintonia Raf. bluebead 2/0
CLAN2 Clintonia andrewsiana Torr. Andrew's clintonia 1/0
CLBO3 Clintonia borealis (Ait.) Raf. bluebead 7/2
CLUM2 Clintonia umbellulata (Michx.) Morong white clintonia 6/1
CLUN2 Clintonia uniflora (Menzies ex J.A. & J.H. Schultes) Kunth bride's bonnet 9/0
CLFA2 Clitoria falcata Lam. sickle pigeonwings 3/0
CLRU4 Clitoria rubiginosa Juss. ex Pers.   2/0
CLLA4 Clitoria laurifolia Poir. laurel-leaf pigeonwings 1/0
CLMA4 Clitoria mariana L. Atlantic pigeonwings 5/1
CLTE3 Clitoria ternatea L. Asian pigeonwings 7/0
CLIVI Clivia Lindl. Kaffir-lily 3/0
CLMI11 Clivia minata (Lindl.) Regel Kaffir-lily 3/0
CLCL2 Clusia clusioides (Griseb.) D'Arcy cupeillo 3/0
CLGU Clusia gundlachii Stahl Grundlach's attorney 2/0
CLRO Clusia rosea Jacq. Scotch attorney 9/0
CNDU Cneoridium dumosum (Nutt.) Hook. f. ex Baill. bush rue 2/0
CNICU Cnicus L. cnicus 1/0
CNBE Cnicus benedictus L. blessed thistle 1/1
CNTE Cnidoscolus texanus (Muell.-Arg.) Small Texas bullnettle 4/0
CNURS Cnidoscolus urens (L.) Arthur var. stimulosus (Michx.) Govaerts finger rot 2/0
CNST Cnidoscolus stimulosus (Michx.) Engelm. & Gray   3/1
COGR9 Coccinia grandis (L.) Voigt ivy gourd 1/0
CODI8 Coccoloba diversifolia Jacq. tietongue 2/0
COKR Coccoloba krugii Lindau whitewood 1/0
COMI Coccoloba microstachya Willd. puckhout 1/0
COSI2 Coccoloba sintenisii Urban ex Lindau uvero de monte 2/0
COUV Coccoloba uvifera (L.) L. seagrape 4/0
COVE Coccoloba venosa L. false chiggergrape 1/0
COBA3 Coccothrinax barbadensis (Lodd. ex Mart.) Becc. Puerto Rico silver palm 1/0
COCA Cocculus carolinus (L.) DC. Carolina coralbead 6/1
EPCA5 Epibaterium carolinum (L.) Britt.   0/1
COGR6 Cochlearia groenlandica L. Danish scurvygrass 1/0
COVI Cochlospermum vitifolium (Willd.) Willd. ex Spreng. silk cottontree 8/0
COCOS Cocos L. coconut palm 2/0
CONU Cocos nucifera L. coconut palm 5/0
COVA3 Codiaeum variegatum (L.) Blume garden croton 1/0
COVAP Codiaeum variegatum (L.) A. Juss. var. pictum (Lodd.) Muell. Arg.   8/0
COCY Coelorachis cylindrica (Michx.) Nash cylinder jointtail grass 2/2
MACY6 Manisuris cylindrica (Michx.) Kuntze   0/1
CORU3 Coelorachis rugosa (Nutt.) Nash wrinkled jointtail grass 0/1
MARU5 Manisuris rugosa (Nutt.) Kuntze   2/1
COTE5 Coelorachis tessellata (Steud.) Nash checkered jointtail grass    
MATE14 Manisuris tessellata (Steud.) Scribn.   0/1
COTU Coelorachis tuberculosa (Nash) Nash bumpy jointtail grass    
MATU2 Manisuris tuberculosa Nash   0/1
COAR2 Coffea arabica L. Arabian coffee 8/0
COIX Coix L. Job's tears 2/0
COLA Coix lacryma-jobi L. Job's tears 5/1
COAR9 Cojoba arborea (L.) Britt. & Rose wild tamarind 1/0
PIAR3 Pithecellobium arboreum (L.) Urban   1/0
COAU4 Colchicum autumnale L. autumn crocus 4/0
COSP12 Colchicum speciosum Steven showy colchicum 2/0
COSU Coleanthus subtilis (Tratt.) Seidel mossgrass 1/1
CORA Coleogyne ramosissima Torr. blackbrush 10/0
COTE60 Collema tenax (Sw.) Ach. jelly lichen 4/0
COSP14 Colletia spinosissima J.F. Gmel. rosea    
COSP13 Colletia spinosa Lam.   2/0
COCO2 Collinsia corymbosa Herder roundhead Chinese houses 2/0
COHE Collinsia heterophylla Buist ex Graham purple Chinese houses 10/0
COPA3 Collinsia parviflora Lindl. maiden blue eyed Mary 12/0
COTE11 Collinsia tenella (Pursh) Piper   0/1
COSP Collinsia sparsiflora Fisch. & C.A. Mey. spinster's blue eyed Mary 1/0
COTI Collinsia tinctoria Hartw. ex Benth. sticky Chinese houses 2/0
COTO Collinsia torreyi Gray Torrey's blue eyed Mary 5/0
COVE2 Collinsia verna Nutt. spring blue eyed Mary 3/1
COVI2 Collinsia violacea Nutt. violet blue eyed Mary 0/1
COCA4 Collinsonia canadensis L. richweed 2/1
COSE11 Collinsonia serotina Walt. Blue Ridge horsebalm 1/0
COVE3 Collinsonia verticillata Baldw. stoneroot 2/0
COGR4 Collomia grandiflora Dougl. ex Lindl. grand collomia 7/0
COHE2 Collomia heterophylla Douglas ex Hook. variableleaf collomia 2/0
COLI2 Collomia linearis Nutt. tiny trumpet 6/1
COES Colocasia esculenta (L.) Schott coco yam 2/0
COAN Cologania angustifolia Kunth longleaf cologania 1/0
COPA4 Cologania pallida Rose pale cologania 2/0
COMI15 Cololejeunea minutissima (Sm.) Schiffn. 3/0
COMO14 Colophospermum mopane (Kirk ex Benth.) Kirk ex J. Léonard balsam tree 1/0
COAS3 Colubrina asiatica (L.) Brongn. Asian nakedwood 1/0
COAM6 Columnea ambigua (Urban) Morley tibey de cresta 2/0
COAR6 Colutea arborescens L. bladder senna 1/0
COUM Comandra umbellata (L.) Nutt. bastard toadflax 4/1
COUMC Comandra umbellata (L.) Nutt. ssp. californica (Eastw. ex Rydb.) Piehl California bastard toadflax 1/0
COUMP Comandra umbellata (L.) Nutt. ssp. pallida (A. DC.) Piehl pale bastard toadflax 3/0
COPA26 Comandra pallida A. DC.   0/1
CODI3 Comarostaphylis diversifolia (Parry) Greene summer holly 4/0
CODIP Comarostaphylis diversifolia (Parry) Greene ssp. planifolia (Jepson) G. Wallace ex Thorne summer holly    
CODIP2 Comarostaphylis diversifolia (Parry) Greene var. planifolia Jepson   2/0
COPA28 Comarum palustre L. purple marshlocks 4/2
POPA14 Potentilla palustris (L.) Scop.   3/0
COMBR Combretum Loefl. 1/0
COHE15 Combretum hereroense Schinz russet bushwillow 2/0
COIM2 Combretum imberbe Wawra leadwood 1/0
COOB13 Combretum obovatum F. Hoffm. spiny combretum 3/0
COPAM Combretum paniculatum Vent. ssp. microphyllum (Klotzsch) Wickens flame keeper 1/0
COMME Commelina L. dayflower 3/0
COCO3 Commelina communis L. Asiatic dayflower 8/2
CODI4 Commelina dianthifolia Delile birdbill dayflower 2/0
CODI5 Commelina diffusa Burm. f. climbing dayflower 2/1
COER Commelina erecta L. whitemouth dayflower 5/1
COERA Commelina erecta L. var. angustifolia (Michx.) Fern. whitemouth dayflower    
COCR4 Commelina crispa Woot.   0/1
COERE Commelina erecta L. var. erecta whitemouth dayflower 1/0
COLA19 Commelina latifolia Hochst. ex A. Rich. 2/0
COVI3 Commelina virginica L. Virginia dayflower 5/2
COLO6 Commelina longifolia Michx.   0/1
COMMI2 Commiphora Jacq. myrrh 2/0
COPE80 Comptonia peregrina (L.) Coult. sweet fern 1/1
COER5 Condalia ericoides (Gray) M.C. Johnston javelin bush    
MIER Microrhamnus ericoides Gray   2/0
COPU18 Conicosia pugioniformis (L.) N.E. Br. narrow-leaved iceplant 2/0
COCH2 Conioselinum chinense (L.) B.S.P. Chinese hemlockparsley 0/1
COSC2 Conioselinum scopulorum (A. Gray) J.M. Coult. & Rose Rocky Mountain hemlockparsley 3/0
COMA2 Conium maculatum L. poison hemlock 6/2
COER2 Conocarpus erectus L. button mangrove 8/0
COCO38 Conocephalum conicum (L.) Dumort. 1/0
COCO13 Conoclinium coelestinum (L.) DC. blue mistflower 4/0
EUCO6 Eupatorium coelestinum L.   2/1
COALM Conopholis alpina Liebm. var. mexicana (Gray ex S. Wats.) Haynes Mexican cancer-root    
COME7 Conopholis mexicana Gray ex S. Wats.   4/0
COAM Conopholis americana (L.) Wallr. f. American cancer-root 2/1
COTE70 Conostomum tetragonum (Hedw.) Lindb. conostomum moss 4/0
COGL9 Conradina glabra Shinners Apalachicola false rosemary 1/0
COVE4 Conradina verticillata Jennison Cumberland false rosemary 1/0
COOR Conringia orientalis (L.) Dumort. hare's ear mustard 1/1
COMO8 Consolea moniliformis (L.) Britt. tuna 4/0
CORU8 Consolea rubescens (Salm-Dyck ex DC.) Lem. sour pricklypear 5/0
OPRU Opuntia rubescens Salm-Dyck ex DC.   5/0
COAJ Consolida ajacis (L.) Schur doubtful knight's-spur    
DEAJ Delphinium ajacis L.   0/1
COMA7 Convallaria majalis L. European lily of the valley 1/1
COMA19 Convallaria majuscula Greene American lily-of-the-valley 1/0
COMO4 Convallaria montana Raf.   1/0
CONVO Convolvulus L. bindweed 1/0
COAR4 Convolvulus arvensis L. field bindweed 5/1
COIN7 Convolvulus incanus auct. non Vahl [misapplied]   0/1
COEQ Convolvulus equitans Benth. Texas bindweed 3/0
CONO Convolvulus nodiflorus Desv. aguinaldo blanco 3/0
COSC10 Convolvulus scammonia L. scammony 1/0
COCA5 Conyza canadensis (L.) Cronq. Canadian horseweed 8/1
COCAC3 Conyza canadensis (L.) Cronq. var. canadensis Canadian horseweed 4/0
ERCA20 Erigeron canadensis L.   1/0
LECA16 Leptilon canadense (L.) Britt.   0/1
CORA4 Conyza ramosissima Cronq. dwarf horseweed    
LEDI8 Leptilon divaricatum (Michx.) Raf.   0/1
COOPE Cooperia Herbert rainlily 1/0
CODR2 Cooperia drummondii Herbert evening rainlily 5/1
COLA14 Copaifera langsdorffii Desf. Langsdorf's copaifera 1/0
COOF2 Copaifera officinalis (Jacq.) L. copaiba 1/0
COPR6 Copernicia prunifera (Miller) H. Moore carnauba wax palm 1/0
COTR2 Coptis trifolia (L.) Salisb. threeleaf goldthread 3/1
CORAL5 Corallorhiza Gagnebin coralroot    
CORAL2 Corallorrhiza Gagnebin [orthographic variant]   1/0
COMA25 Corallorhiza maculata (Raf.) Raf. summer coralroot 2/0
COMA4 Corallorrhiza maculata (Raf.) Raf. [orthographic variant]   7/1
COME17 Corallorhiza mertensiana Bong. Pacific coralroot 2/0
COME4 Corallorrhiza mertensiana Bong. [orthographic variant]   4/0
COOD7 Corallorhiza odontorhiza (Willd.) Poir. autumn coralroot    
COOD Corallorrhiza odontorhiza (Willd.) Poir. [orthographic variant]   1/1
COST19 Corallorhiza striata Lindl. hooded coralroot 3/0
COST Corallorrhiza striata Lindl. [orthographic variant]   5/1
COSTS3 Corallorhiza striata Lindl. var. striata hooded coralroot    
COOC7 Corallorrhiza ochroleuca Rydb. [orthographic variant]   0/1
COSTS Corallorrhiza striata Lindl. var. striata Lindl. [orthographic variant]   2/0
COTR18 Corallorhiza trifida Chatelain yellow coralroot    
COCO23 Corallorrhiza corallorrhiza (L.) Karst. [orthographic variant]   0/1
COTR3 Corallorrhiza trifida Chatelain [orthographic variant]   5/0
COWI5 Corallorhiza wisteriana Conrad spring coralroot    
COWI2 Corallorrhiza wisteriana Conrad [orthographic variant]   1/1
CORCH Corchorus L. corchorus 1/0
COAE Corchorus aestuans L. jute 2/0
CORDI Cordia L. cordia 1/0
COAL Cordia alliodora (Ruiz & Pavón) Oken Spanish elm 2/0
COAN11 Cordia angustifolia (West ex Willd.) Roemer & J.A. Schultes basora 1/0
COBA4 Cordia bahamensis Urban Bahama manjack 2/0
COBE3 Cordia bellonis Urban serpentine manjack 2/0
COBO2 Cordia boissieri A. DC. anacahuita 5/0
COBO3 Cordia borinquensis Urban muneco 1/0
COCO5 Cordia collococca L. red manjack 4/0
COGL6 Cordia globosa (Jacq.) Kunth curaciao bush 1/0
COLA12 Cordia laevigata Lam. smooth manjack 1/0
COMY Cordia myxa L. Assyrian plum 2/0
COOB3 Cordia obliqua Willd. clammy cherry 1/0
COPO3 Cordia polycephala (Lam.) I.M. Johnston black-sage 1/0
CORI Cordia rickseckeri Millsp. San Bartolome 4/0
CORU5 Cordia rupicola Urban Puerto Rico manjack 1/0
COSE2 Cordia sebestena L. largeleaf geigertree 9/0
COSU3 Cordia sulcata DC. mucilage manjack 2/0
COAF2 Cordyla africana Lour. cordyla 2/0
COKIH Cordylanthus kingii S. Wats. ssp. helleri (Ferris) Chuang & Heckard Heller's bird's-beak 2/0
COMA5 Cordylanthus maritimus Nutt. ex Benth. saltmarsh bird's-beak 3/1
COMAC Cordylanthus maritimus Nutt. ex Benth. ssp. canescens (Gray) Chuang & Heckard saltmarsh bird's-beak 5/0
COOR7 Cordylanthus orcuttianus Gray Orcutt's bird's-beak 2/0
COPA9 Cordylanthus parviflorus (Ferris) Wiggins purple bird's-beak 3/0
CORIR Cordylanthus rigidus (Benth.) Jepson ssp. rigidus stiffbranch bird's beak 3/0
COTE3 Cordylanthus tenuis Gray slender bird's beak 1/0
COTEV Cordylanthus tenuis Gray ssp. viscidus (T.J. Howell) Chuang & Heckard slender bird's beak 2/0
COWR2 Cordylanthus wrightii Gray Wright's bird's beak 2/0
CORDY2 Cordyline Comm. ex R. Br. cordyline 1/0
COAU12 Cordyline australis (G. Forst.) Endl. cabbage tree 3/0
COBA14 Cordyline banksii Hook. f. ti ngahere 2/0
COFR2 Cordyline fruticosa (L.) Chev. tiplant 3/0
COCO9 Corema conradii (Torr.) Torr. ex Loud. broom crowberry 0/1
COREO2 Coreopsis L. tickseed 1/0
COAU Coreopsis auriculata L. lobed tickseed 4/1
COBA2 Coreopsis basalis (A. Dietr.) Blake goldenmane tickseed 1/0
COBI Coreopsis bigelovii (Gray) Hall Bigelow's tickseed 1/0
COCA8 Coreopsis californica (Nutt.) H.K. Sharsmith California tickseed 1/0
COCA9 Coreopsis calliopsidea (DC.) Gray leafstem tickseed 1/0
CODE3 Coreopsis delphiniifolia Lam. larkspurleaf tickseed    
CODEC2 Coreopsis delphiniifolia Lam. var. chlooidea Sherff   0/1
CODO2 Coreopsis douglasii (DC.) Hall Douglas' tickseed 1/0
COGI Coreopsis gigantea (Kellogg) Hall giant coreopsis 12/0
COGL2 Coreopsis gladiata Walt. coastal plain tickseed    
COAN9 Coreopsis angustifolia Ait., non L.   1/0
COGR5 Coreopsis grandiflora Hogg ex Sweet largeflower tickseed 1/1
COHA2 Coreopsis hamiltonii (Elmer) H.K. Sharsmith Mt. Hamilton tickseed 1/0
COLA5 Coreopsis lanceolata L. lanceleaf tickseed 8/1
COCR5 Coreopsis crassifolia Ait.   0/1
COLI5 Coreopsis linifolia Nutt. Texas tickseed 1/0
COMA6 Coreopsis major Walt. greater tickseed 5/1
COMAS Coreopsis major Walt. var. stellata (Nutt.) B.L. Robins.   2/0
COPA10 Coreopsis palmata Nutt. stiff tickseed 1/1
COPU2 Coreopsis pubescens Ell. star tickseed 3/1
CORO Coreopsis rosea Nutt. pink tickseed 2/1
COTI3 Coreopsis tinctoria Nutt. golden tickseed 3/1
COTIT Coreopsis tinctoria Nutt. var. tinctoria golden tickseed    
COCA12 Coreopsis cardaminefolia (DC.) Torr. & Gray   0/1
COTR4 Coreopsis tripteris L. tall tickseed 5/1
COVE5 Coreopsis verticillata L. whorled tickseed 1/1
COFIC Corethrogyne filaginifolia (Hook. & Arn.) Nutt. var. californica (DC.) J.P. Saroyan California sandaster    
LEFIC2 Lessingia filaginifolia (Hook. & Arn.) M.A. Lane var. californica (DC.) M.A. Lane   2/0
COSA Coriandrum sativum L. coriander 1/1
COAMR Corispermum americanum (Nutt.) Nutt. var. rydbergii Mosyakin American bugseed    
COHY Corispermum hyssopifolium L. p.p.   0/1
CORNU Cornus L. dogwood 1/1
COAL2 Cornus alternifolia L. f. alternateleaf dogwood 2/1
COAM2 Cornus amomum P. Mill. silky dogwood 3/2
COAS2 Cornus asperifolia Michx. toughleaf dogwood 0/1
COCA13 Cornus canadensis L. bunchberry dogwood 17/0
CHCA24 Chamaepericlymenum canadense (L.) Aschers. & Graebn.   0/1
COCA45 Cornus capitata Wall. ex Roxb. Bentham's cornel 3/0
CODR Cornus drummondii C.A. Mey. roughleaf dogwood 6/1
COPR4 Cornus priceae Small   0/1
COFL2 Cornus florida L. flowering dogwood 27/0
CYFL7 Cynoxylon floridum (L.) Raf. ex B.D. Jackson   0/1
COFO Cornus foemina P. Mill. stiff dogwood 1/2
COST13 Cornus stricta Lam.   0/1
COKO2 Cornus kousa Hance Kousa dogwood 9/0
COMA21 Cornus mas L. Cornelian cherry 6/0
CONU4 Cornus nuttallii Audubon ex Torr. & Gray Pacific dogwood 16/0
CORA6 Cornus racemosa Lam. gray dogwood 4/0
CORU Cornus rugosa Lam. roundleaf dogwood 2/1
COSE16 Cornus sericea L. redosier dogwood 5/1
COSEO Cornus sericea L. ssp. occidentalis (Torr. & Gray) Fosberg western dogwood 2/0
COSES Cornus sericea L. ssp. sericea redosier dogwood 3/0
COBA6 Cornus baileyi Coult. & Evans   0/1
COST4 Cornus stolonifera Michx.   3/2
COSU4 Cornus suecica L. Lapland cornel 1/0
CHSU9 Chamaepericlymenum suecicum (L.) Aschers. & Graebn.   0/1
COUN Cornus unalaschkensis Ledeb. western cordilleran bunchberry 3/0
CODI6 Coronopus didymus (L.) Sm. lesser swinecress 1/0
CADI21 Carara didyma (L.) Britt.   0/1
COSQ Coronopus squamatus (Forssk.) Aschers. greater swinecress    
CACO57 Carara coronopus (L.) Medik.   0/1
COBA13 Correa backhousiana Hook. Backhous fuchsia 3/0
CORRY Corryocactus Britton & Rose corryocactus 1/0
CORTA Cortaderia Stapf pampas grass 2/0
COAR16 Cortaderia araucana Stapf pampas grass 3/0
COSE4 Cortaderia selloana (J.A. & J.H. Schultes) Aschers. & Graebn. Uruguayan pampas grass 4/1
COTO6 Cortaderia toetoe Zotov toetoe 2/0
COAU2 Corydalis aurea Willd. scrambled eggs 9/0
CAAU11 Capnoides aureum (Willd.) Kuntze   0/1
COCA15 Corydalis caseana Gray Sierra fumewort 6/1
COCAB2 Corydalis caseana Gray ssp. brandegeei (S. Wats.) G.B. Ownbey Brandegee's fumewort 2/0
COCR2 Corydalis crystallina Engelm. mealy fumewort    
CACR18 Capnoides crystallinum (Engelm.) Kuntze   0/1
COCU2 Corydalis curvisiliqua Engelm. curvepod fumewort 3/0
COCUC Corydalis curvisiliqua Engelm. ssp. curvisiliqua curvepod fumewort 2/0
COCUO Corydalis curvisiliqua Engelm. ssp. occidentalis (Engelm. ex Gray) W.A. Weber curvepod fumewort    
CAMO18 Capnoides montanum (Engelm.) Britt.   0/1
COFL3 Corydalis flavula (Raf.) DC. yellow fumewort 3/1
CAFL26 Capnoides flavulum (Raf.) Kuntze   0/1
COMIA2 Corydalis micrantha (Engelm. ex Gray) Gray ssp. australis (Chapman) G.B. Ownbey smallflower fumewort    
CACA49 Capnoides campestre Britt.   0/1
COMIM2 Corydalis micrantha (Engelm. ex Gray) Gray ssp. micrantha smallflower fumewort    
CAMI32 Capnoides micranthum (Engelm. ex Gray) Britt.   0/1
COMIT2 Corydalis micrantha (Engelm. ex Gray) Gray ssp. texensis G.B. Ownbey Texan fumewort 1/0
COSC4 Corydalis scouleri Hook. Scouler's fumewort 1/0
COSE5 Corydalis sempervirens (L.) Pers. rock harlequin 4/0
CASE16 Capnoides sempervirens (L.) Borkh.   0/1
COSO6 Corydalis solida (L.) Clairv. spring fumewort 1/0
COSI12 Corylopsis sinensis Hemsl. winter hazel 2/0
CORYL Corylus L. hazelnut 2/1
COAM3 Corylus americana Walt. American hazelnut 3/1
COAV80 Corylus avellana L. common filbert 5/0
COCO30 Corylus colurna L. Turkish hazelnut 1/0
COCO6 Corylus cornuta Marsh. beaked hazelnut 8/1
COCOC Corylus cornuta Marsh. var. californica (A. DC.) Sharp California hazelnut 3/0
COCOC2 Corylus cornuta Marsh. var. cornuta beaked hazelnut    
CORO5 Corylus rostrata Ait.   0/1
COFI7 Corymbia ficifolia (F. Muell.) K.D. Hill & L.A. Johnson redflower gum    
EUFI81 Eucalyptus ficifolia F. Muell.   1/0
COTE20 Corymbia terminalis (F. Muell.) K. D. Hill & L. A. S. Johnson    
EUTE17 Eucalyptus terminalis F. Muell.   1/0
COCA16 Corynephorus canescens (L.) Beauv. gray clubawn grass 0/1
CORYN2 Corynocarpus J.R. & G. Forst. corynocarpus 1/0
COLA6 Corynocarpus laevigatus J.R. & G. Forst. karaka nut 2/0
CORYP Coryphantha (Engelm.) Lem. beehive cactus 3/0
COCR70 Coscinodon cribrosus (Hedw.) Spruce coscinodon moss 7/0
COBI2 Cosmos bipinnatus Cav. garden cosmos 5/0
COPA12 Cosmos parviflorus (Jacq.) Pers. southwestern cosmos 2/0
COSU5 Cosmos sulphureus Cav. sulphur cosmos 1/0
COGU Costus guanaiensis Rusby cana de India 2/0
COPU22 Costus pulverulentus C. Presl. spiral ginger 4/0
COSP8 Costus speciosus (Koenig) Sm. canereed 2/0
COVI17 Costus villosissimus Jacq. spiral flag 1/0
COCO10 Cotinus coggygria Scop. European smoketree 3/0
COOB2 Cotinus obovatus Raf. American smoketree 1/1
COAM11 Cotinus americanus Nutt.   0/1
COTON Cotoneaster Medik. cotoneaster 1/1
COAC2 Cotoneaster acutifolius Turcz. Peking cotoneaster 1/0
COHO80 Cotoneaster horizontalis Dcne. rockspray cotoneaster 1/0
COIN16 Cotoneaster integerrimus Medik. cotoneaster 1/0
COMU9 Cotoneaster multiflorus Bunge cotoneaster    
COMU10 Cotoneaster multiflora Bunge [orthographic variant]   1/0
COPA13 Cottea pappophoroides Kunth cotta grass 2/1
COTUL Cotula L. waterbuttons 2/0
COCO7 Cotula coronopifolia L. common brassbuttons 6/1
COOR2 Cotyledon orbiculata L. pig's ear 1/0
COGU3 Couroupita guianensis Aubl. cannonball tree 4/0
COAX Coursetia axillaris J.M. Coult. & Rose Texas babybonnets 2/0
COCA31 Coursetia caribaea (Jacq.) Lavin anil falso 2/0
COGL8 Coursetia glandulosa A. Gray rosary babybonnets 2/0
CRMA Crambe maritima L. sea kale 1/0
CRAN8 Craniolaria annua L. escorzonera 3/0
CRVI15 Crassocephalum vitellinum (Benth.) S. Moore 1/0
CRASS Crassula L. pygmyweed 1/0
CRAQ Crassula aquatica (L.) Schoenl. water pygmyweed    
TIAQ2 Tillaeastrum aquaticum (L.) Britt.   0/1
CRCO34 Crassula connata (Ruiz & Pavón) Berger sand pygmyweed 2/0
CRCOC Crassula connata (Ruiz & Pavón) Berger var. connata sand pygmyweed    
TIER3 Tillaea erecta Hook. & Arn.   1/0
CRPEM Crassula perfoliata L. var. minor (Haw.) G. D. Rowley    
CRFA6 Crassula falcata Wendl.   1/0
CRSA7 Crassula saginoides (Maxim.) Bywater & Wickens wrinkleseed pygmyweed    
TIVA4 Tillaeastrum vaillantii auct. non (Willd.) Britt. [misapplied]   0/1
CRSA14 Crassula sarcocaulis Eckl. & Zeyh. 1/0
CRTI Crassula tillaea Lester-Garland moss pygmyweed 1/0
CRATA Crataegus L. hawthorn 4/1
CRAE Crataegus aestivalis (Walt.) Torr. & Gray may hawthorn 2/1
CRAN6 Crataegus ×anomala Sarg. (pro sp.) [intricata × mollis] 0/1
CRAR Crataegus arnoldiana Sarg.   3/1
CRBE6 Crataegus beata Sarg. Dunbar's hawthorn 0/1
CRBE2 Crataegus berberifolia Torr. & Gray barberry hawthorn 0/1
CRBR3 Crataegus brainerdii Sarg. Brainerd's hawthorn 0/1
CRCA Crataegus calpodendron (Ehrh.) Medik. pear hawthorn 0/1
CRGL9 Crataegus globosa Sarg.   0/1
CRCH Crataegus chrysocarpa Ashe fireberry hawthorn 0/1
CRCHC2 Crataegus chrysocarpa Ashe var. chrysocarpa fireberry hawthorn    
CRCO Crataegus coccinea L. p.p.   1/1
CRJA6 Crataegus jackii Sarg.   0/1
CRRO12 Crataegus rotundifolia Moench p.p., non Lamb.   1/0
CRCO2 Crataegus coccinioides Ashe Kansas hawthorn 0/1
CRCO4 Crataegus coleae Sarg. Cole's hawthorn    
CRMA13 Crataegus macauleyae Sarg.   0/1
CRCR2 Crataegus crus-galli L. cockspur hawthorn 7/2
CRCA21 Crataegus canbyi Sarg.   0/1
CRDE5 Crataegus denaria Beadle   0/1
CRFE5 Crataegus fecunda Sarg.   0/1
CRSC5 Crataegus schizophylla Egglest.   0/1
CRDI4 Crataegus disperma Ashe spreading hawthorn    
CRCU4 Crataegus cuneiformis (Marsh.) Egglest.   0/1
CRDI9 Crataegus dispessa Ashe mink hawthorn 0/1
CRDI10 Crataegus dissona Sarg. northern hawthorn    
CRDI13 Crataegus disjuncta Sarg.   0/1
CRDO2 Crataegus douglasii Lindl. black hawthorn 2/1
CRDOD Crataegus douglasii Lindl. var. douglasii Lindl. [superfluous autonym]   1/0
CRFL Crataegus flabellata (Spach) Kirchn. fanleaf hawthorn 0/1
CRGR9 Crataegus grayana Egglest.   0/1
CRFL2 Crataegus flava Ait. yellowleaf hawthorn 4/1
CRFL11 Crataegus floridana Sarg.   1/0
CRHO5 Crataegus holmesiana Ashe Holmes' hawthorn    
CRVI12 Crataegus villipes (Ashe) Ashe   0/1
CRIN3 Crataegus intricata Lange Copenhagen hawthorn 0/1
CRBO2 Crataegus boyntonii Beadle   0/1
CRPA13 Crataegus padifolia Sarg.   0/1
CRPA15 Crataegus pallens Beadle   0/1
CRST9 Crataegus stonei Sarg.   0/1
CRST10 Crataegus straminea Beadle   0/1
CRIR Crataegus iracunda Beadle stolonbearing hawthorn    
CRPO8 Crataegus populnea Ashe   0/1
CRIR2 Crataegus irrasa Sarg. Blanchard's hawthorn 0/1
CROA2 Crataegus oakesiana Egglest.   0/1
CRJE Crataegus jesupii Sarg. Jesup's hawthorn 0/1
CRFI2 Crataegus filipes Ashe   0/1
CRJO3 Crataegus jonesiae Sarg. Miss Jones' hawthorn 0/1
CRLA5 Crataegus laurentiana Sarg.   0/1
CRKE2 Crataegus kelloggii Sarg. Kellogg's hawthorn 0/1
CRLA3 Crataegus lanuginosa Sarg. woolly hawthorn 0/1
CRLU Crataegus lucorum Sarg. grove hawthorn 0/1
CRMA3 Crataegus macrosperma Ashe bigfruit hawthorn 0/1
CRRO8 Crataegus roanensis Ashe   0/1
CRMA4 Crataegus margarettiae Ashe Margarett's hawthorn 0/1
CRMA5 Crataegus marshallii Egglest. parsley hawthorn 3/2
CRMO2 Crataegus mollis Scheele downy hawthorn 2/1
CRAL7 Crataegus albicans Ashe   0/1
CRMO3 Crataegus monogyna Jacq. oneseed hawthorn 1/1
CROX2 Crataegus oxyacantha auct. non L. [misapplied]   3/0
CRNI Crataegus nitida (Engelm.) Sarg. glossy hawthorn 1/1
CROP Crataegus opaca Hook. & Arn. riverflat hawthorn 3/0
CROV2 Crataegus ovata Sarg. ovateleaf hawthorn 0/1
CRPH Crataegus phaenopyrum (L. f.) Medik. Washington hawthorn 5/2
CRPO10 Crataegus populifolia Walt.   0/1
CRPR Crataegus pringlei Sarg. Pringle's hawthorn 0/1
CRPR2 Crataegus pruinosa (Wendl. f.) K. Koch waxyfruit hawthorn 1/1
CRAS5 Crataegus aspera Sarg.   0/1
CRGA4 Crataegus gattingeri Ashe   0/1
CRLE13 Crataegus leiophylla Sarg.   0/1
CRRU8 Crataegus rugosa Ashe   0/1
CRPU Crataegus punctata Jacq. dotted hawthorn 2/1
CRCO22 Crataegus collina Chapman   0/1
CRRE3 Crataegus reverchonii Sarg. Reverchon's hawthorn 0/1
CRRI Crataegus rivularis Nutt. river hawthorn 1/0
CRSC4 Crataegus schuettei Ashe Schuette's hawthorn    
CRAL8 Crataegus alnorum Sarg.   0/1
CRSP Crataegus spathulata Michx. littlehip hawthorn 2/1
CRSU2 Crataegus submollis Sarg. Quebec hawthorn 0/1
CRSU3 Crataegus suborbiculata Sarg. Caughuawaga hawthorn 0/1
CRSU5 Crataegus succulenta Schrad. ex Link fleshy hawthorn 2/1
CRBI7 Crataegus bicknellii Egglest.   0/1
CRMA14 Crataegus macracantha Dodd. ex Loud.   1/0
CRNE5 Crataegus neofluvialis Ashe   0/1
CRPE9 Crataegus pertomentosa Ashe   0/1
CRUN Crataegus uniflora Muenchh. dwarf hawthorn 4/1
CRVA Crataegus vailiae Britt. Miss Vail's hawthorn 0/1
CRVI2 Crataegus viridis L. green hawthorn 5/2
CRPL5 Craterostigma plantagineum Hochst. blue gem 4/0
CRFI70 Cratoneuron filicinum (Hedw.) Spruce cratoneuron moss 4/0
CRAC2 Crepis acuminata Nutt. tapertip hawksbeard 7/0
CRBI3 Crepis biennis L. rough hawksbeard 1/1
CRCA3 Crepis capillaris (L.) Wallr. smooth hawksbeard 1/1
CRFO2 Crepis foetida L. stinking hawksbeard 1/0
CRIN4 Crepis intermedia Gray limestone hawksbeard 2/1
CROC Crepis occidentalis Nutt. largeflower hawksbeard 1/1
CRPU3 Crepis pulchra L. smallflower hawksbeard 0/1
CRRU9 Crepis rubra L. red hawksbeard 1/0
CRRU3 Crepis runcinata (James) Torr. & Gray fiddleleaf hawksbeard 1/2
CRRUG Crepis runcinata (James) Torr. & Gray ssp. glauca (Nutt.) Babcock & Stebbins fiddleleaf hawksbeard    
CRGL5 Crepis glauca (Nutt.) Torr. & Gray   0/1
CRRUH Crepis runcinata (James) Torr. & Gray ssp. hallii Babcock & Stebbins Hall's hawksbeard 4/0
CRRUR Crepis runcinata (James) Torr. & Gray ssp. runcinata fiddleleaf hawksbeard    
PSRU2 Psilochenia runcinata (James) A.& D. Löve   4/0
CRSE2 Crepis setosa Haller f. bristly hawksbeard 1/0
CRTE3 Crepis tectorum L. narrowleaf hawksbeard 1/1
CRAL11 Crescentia alata Kunth morrito 3/0
CRCU Crescentia cujete L. common calabash tree 13/0
CRLI5 Crescentia linearifolia Miers higuerito 2/0
CRPO6 Crescentia portoricensis Britt. higuero de sierra 1/0
CRTR5 Cressa truxillensis Kunth spreading alkaliweed 4/1
CRINU Crinum L. swamplily 5/0
CRAM2 Crinum americanum L. seven sisters 4/0
CRAS6 Crinum asiaticum L. poisonbulb 1/0
CRBU2 Crinum bulbispermum (Burm. f.) Milne-Redhead & Schweickerdt hardy swamplily 2/0
CRMA23 Crinum macowanii Baker pyjama lily 3/0
CRMU Crocidium multicaule Hook. common spring-gold 1/0
CRCR6 Crocosmia ×crocosmiiflora (V. Lemoine) N.E. Br. [aurea × pottsii] montbretia 5/0
CROCU Crocus L. crocus 16/0
CRIM4 Crocus imperati Ten. early crocus 1/0
CRVE4 Crocus vernus (L.) Hill dutch crocus 1/0
CRPA9 Croomia pauciflora (Nutt.) Torr. croomia 1/0
CRDI17 Croptilon divaricatum (Nutt.) Raf. slender scratchdaisy 4/0
HADI5 Haplopappus divaricatus (Nutt.) Gray   3/0
ISDI4 Isopappus divaricatus (Nutt.) Torr. & Gray   0/1
CROSS5 Crossandra Salisb. crossandra 2/0
CRIN29 Crossandra infundibuliformis (L.) Nees 2/0
CRNI7 Crossandra nilotica Oliv. 1/0
CRSQ Crossidium squamiferum (Viv.) Jur. crossidium moss 5/0
CRRH Crossopetalum rhacoma Crantz maidenberry 5/0
CRBI2 Crossosoma bigelovii S. Wats. ragged rockflower 3/0
CRCA4 Crossosoma californicum Nutt. California rockflower 3/0
CRAG2 Crotalaria agatiflora Schweinf. canarybird-bush 1/0
CRAL12 Crotalaria alata Buch.-Ham. ex D. Don rattlebox 1/0
CRBRI Crotalaria brevidens Benth. var. intermedia (Kotschy) Polhill Ethiopian rattlebox 1/0
CRIN5 Crotalaria incana L. shakeshake 1/0
CRJU Crotalaria juncea L. sunn hemp 1/0
CRLA7 Crotalaria lanceolata E. Mey. lanceleaf rattlebox 1/0
CRLO3 Crotalaria longirostrata Hook. & Arn. longbeak rattlebox 2/0
CRMY Crotalaria mysorensis Roth rattlebox 1/0
CROC80 Crotalaria ochroleuca G. Don slender leaf rattlebox 1/0
CRPA10 Crotalaria pallida Ait. smooth rattlebox 1/0
CRPAO Crotalaria pallida Ait. var. obovata (G. Don) Polhill smooth rattlebox 4/0
CRPA22 Crotalaria paulina Schrank rattlebox 1/0
CRPU4 Crotalaria pumila Ortega low rattlebox 1/0
CRRE4 Crotalaria retusa L. rattleweed 3/0
CRRO5 Crotalaria rotundifolia Walt. ex J.F. Gmel. rabbitbells 2/1
CRSA4 Crotalaria sagittalis L. arrowhead rattlebox 2/1
CRSP2 Crotalaria spectabilis Roth showy rattlebox 3/0
CRST4 Crotalaria stipularia Desv. cascabelillo alado 2/0
CRVE5 Crotalaria verrucosa L. blue rattlesnake 3/0
CRVIG Crotalaria virgulata Klotzsch ssp. grantiana (Harv.) Polhill Grant's rattlebox 1/0
CRVI13 Crotalaria vitellina Ker Gawl. rattlebox 2/0
CROTO Croton L. croton 1/0
CRAS3 Croton astroites Dry. wild marrow 1/0
CRBE4 Croton betulinus Vahl beechleaf croton 1/0
CRCA5 Croton californicus Muell.-Arg. California croton 2/0
CRCA6 Croton capitatus Michx. hogwort 3/1
CRDI8 Croton discolor Willd. lechecillo 1/0
CRFI3 Croton fishlockii Britt. Fishlock's croton 2/0
CRFL23 Croton flavens L. yellow balsam 2/0
CRFR Croton fruticulosus Engelm. ex Torr. bush croton 2/0
CRGL2 Croton glandulosus L. vente conmigo 2/1
CRGLS Croton glandulosus L. var. septentrionalis Muell.-Arg. vente conmigo 3/0
CRLI2 Croton lindheimerianus Scheele threeseed croton 0/1
CRLO5 Croton lobatus L. lobed croton 1/0
CRLU2 Croton lucidus L. firebush 2/0
CRME15 Croton megalobotrys Müll.Arg. large fever berry 2/0
CRMI8 Croton michauxii G.L. Webster Michaux's croton    
CRLI3 Crotonopsis linearis Michx.   0/1
CRMO6 Croton monanthogynus Michx. prairie tea 2/1
CRNU3 Croton nummulariifolius A. Rich. money croton 2/0
CROV Croton ovalifolius Vahl yerba 2/0
CRPU6 Croton punctatus Jacq. gulf croton 1/0
CRSE11 Croton setigerus Hook. dove weed 4/0
CRTE4 Croton texensis (Klotzsch) Muell.-Arg. Texas croton 3/1
CRWI5 Croton willdenowii G.L. Webster Willdenow's croton    
CREL2 Crotonopsis elliptica Willd.   1/0
CRVU2 Crupina vulgaris Cass. common crupina 1/0
CRYPS Crypsis Ait. pricklegrass 1/0
CRAL2 Crypsis alopecuroides (Piller & Mitterp.) Schrad. foxtail pricklegrass    
HEAL10 Heleochloa alopecuroides (Piller & Mitterp.) Host ex Roemer   0/1
CRSC Crypsis schoenoides (L.) Lam. swamp pricklegrass    
HESC8 Heleochloa schoenoides (L.) Host ex Roemer   2/2
CRVA2 Crypsis vaginiflora (Forssk.) Opiz modest prickle grass    
CRAC4 Crypsis aculeata auct. non (L.) Ait. [misapplied]   2/0
CRNI3 Crypsis niliacea auct. non Fig. & de Not. [misapplied]   0/1
CRYPT Cryptantha Lehm. ex G. Don cryptantha 5/0
CRAN4 Cryptantha angustifolia (Torr.) Greene Panamint cryptantha 3/0
CRBA5 Cryptantha barbigera (Gray) Greene bearded cryptantha 1/0
CRCE Cryptantha celosioides (Eastw.) Payson buttecandle    
ORGL Oreocarya glomerata (Pursh) Greene, non Lehm. ex Fisch.   0/1
CRCI3 Cryptantha cinerea (Greene) Cronq. James' cryptantha 3/0
CRCIA Cryptantha cinerea (Greene) Cronq. var. abortiva (Greene) Cronq. James' cryptantha 2/0
CRCIJ Cryptantha cinerea (Greene) Cronq. var. jamesii Cronq. James' cryptantha    
ORSU2 Oreocarya suffruticosa (Piper) Greene   0/1
CRCI2 Cryptantha circumscissa (Hook. & Arn.) I.M. Johnston cushion cryptantha 7/0
CRCO12 Cryptantha confertiflora (Greene) Payson basin yellow cryptantha 8/0
CRCR3 Cryptantha crassisepala (Torr. & Gray) Greene thicksepal cryptantha 3/1
CRFE3 Cryptantha fendleri (Gray) Greene sanddune cryptantha 0/1
CRFL5 Cryptantha flava (A. Nels.) Payson Brenda's yellow cryptantha 7/0
CRFL6 Cryptantha flavoculata (A. Nels.) Payson roughseed cryptantha 10/0
CRFUF Cryptantha fulvocanescens (S. Wats.) Payson var. fulvocanescens tawny cryptantha    
ORFU3 Oreocarya fulvocanescens (S. Wats.) Greene   3/1
CRGR3 Cryptantha gracilis Osterhout narrowstem cryptantha 2/0
CRMA7 Cryptantha maritima (Greene) Greene Guadalupe cryptantha 3/0
CRMI Cryptantha micrantha (Torr.) I.M. Johnston redroot cryptantha 6/0
CRMI5 Cryptantha minima Rydb. little cryptantha 1/0
CRMU2 Cryptantha muricata (Hook. & Arn.) A. Nels. & J.F. Macbr. pointed cryptantha 1/0
CRNEN Cryptantha nevadensis A. Nels. & Kennedy var. nevadensis Nevada cryptantha 1/0
CROB Cryptantha oblata (M.E. Jones) Payson rough cryptantha 2/0
CROC2 Cryptantha ochroleuca Higgins yellowwhite cryptantha 1/0
CRPT Cryptantha pterocarya (Torr.) Greene wingnut cryptantha 8/0
CRRA2 Cryptantha racemosa (S. Wats.) Greene bushy cryptantha 1/0
CRRO6 Cryptantha rollinsii I.M. Johnston Rollins' cryptantha 3/0
CRSE4 Cryptantha semiglabra Barneby smooth cryptantha 1/0
CRSE3 Cryptantha sericea (Gray) Payson silky cryptantha    
ORSE3 Oreocarya sericea (Gray) Greene   0/1
CRUT Cryptantha utahensis (Gray) Greene scented cryptantha 2/0
CRWE5 Cryptantha welshii Thorne & Higgins Welsh's cryptantha 2/0
CRRU12 Cryptocarya rubra (Molina) Skeels red cryptocarya 2/0
CRAC3 Cryptogramma acrostichoides R. Br. American rockbrake 3/1
CRCA23 Cryptogramma cascadensis E.R. Alverson Cascade rockbrake 1/0
CRST2 Cryptogramma stelleri (Gmel.) Prantl fragile rockbrake 0/1
CRJA3 Cryptomeria japonica (L. f.) D. Don Japanese cedar 7/1
CRGR6 Cryptostegia grandiflora (Roxb. ex R. Br.) R. Br. Palay rubbervine 3/0
CRMA10 Cryptostegia madagascariensis Bojer ex Dcne. Madagascar rubbervine 1/0
CRCA9 Cryptotaenia canadensis (L.) DC. Canadian honewort 1/0
DECA12 Deringa canadensis (L.) Kuntze   0/1
CRMI16 Cryptothallus mirabilis Malmb. 5/0
CTMA Ctenidium malacodes Mitt. ctenidium moss    
CTMO2 Ctenidium molluscum auct. E. Amer.   1/0
CTMO Ctenidium molluscum (Hedw.) Mitt. mollusc ctenidium moss 2/0
CTAR Ctenium aromaticum (Walt.) Wood toothache grass 4/2
CAAR31 Campulosus aromaticus (Walt.) Scribn.   0/1
CTFL Ctenium floridanum (A.S. Hitchc.) A.S. Hitchc. Florida orangegrass 0/1
CUAN Cucumis anguria L. West Indian gherkin 3/0
CUDI2 Cucumis dipsaceus C.G. Ehrenb. ex Spach hedgehog gourd 4/0
CUME Cucumis melo L. cantaloupe 5/0
CUMED Cucumis melo L. var. dudaim (L.) Naud.   1/0
CUMY Cucumis myriocarpus E. Mey. ex Naud. gooseberry gourd 1/0
CUDI Cucurbita digitata Gray fingerleaf gourd 1/0
CUFO Cucurbita foetidissima Kunth Missouri gourd 8/0
PEFO4 Pepo foetidissima (Kunth) Britt.   0/1
CUMO Cucurbita moschata Duchesne crookneck squash 3/0
CUPA Cucurbita palmata S. Wats. coyote gourd 4/0
CUPEO Cucurbita pepo L. var. ovifera (L.) Harz field pumpkin    
CUPEM Cucurbita pepo L. var. melopepo (L.) Harz   1/0
CUPET Cucurbita pepo L. var. texana (Scheele) D. Decker Texas gourd    
CUTE Cucurbita texana Scheele   1/0
CUAM5 Cullen americanum (L.) Rydb. American scurfpea    
PSAM2 Psoralea americana L.   1/0
CUOR Cunila origanoides (L.) Britt. common dittany 2/1
CULA Cunninghamia lanceolata (Lamb.) Hook. Chinese fir 2/0
CUPHE Cuphea P. Br. waxweed 1/0
CUGL4 Cuphea glutinosa Cham. & Schlecht. sticky waxweed 1/0
CUIG Cuphea ignea A. DC. cigar flower 3/0
CUVI Cuphea viscosissima Jacq. blue waxweed 8/1
CUPE4 Cuphea petiolata (L.) Koehne   2/0
PAPE9 Parsonsia petiolata (L.) Rusby   0/1
CUPRE Cupressus L. cypress 4/0
CUAB Cupressus abramsiana C.B. Wolf Santa Cruz Island cypress 1/0
CUAR Cupressus arizonica Greene Arizona cypress 9/1
CUARA Cupressus arizonica Greene ssp. arizonica Arizona cypress 3/0
CUGL9 Cupressus glabra Sudsworth   2/0
CUARN2 Cupressus arizonica Greene ssp. nevadensis (Abrams) E. Murray Paiute cypress 3/0
CUNE2 Cupressus nevadensis Abrams   1/0
CUARS2 Cupressus arizonica Greene ssp. stephensonii (C.B. Wolf) Beauchamp Cuyamaca cypress    
CUST Cupressus stephensonii C.B. Wolf   1/0
CUBA Cupressus bakeri Jepson Modoc cypress 7/0
CUFO2 Cupressus forbesii Jepson tecate cypress 3/0
CUGUF Cupressus guadalupensis S. Wats. var. forbesii (Jepson) Little   1/0
CUGO Cupressus goveniana Gord. Gowen cypress 2/0
CUGOG Cupressus goveniana Gord. ssp. goveniana Gowen cypress 2/0
CUGOP2 Cupressus goveniana Gord. ssp. pygmaea (Lemmon) Bartel pygmy cypress 2/0
CUPY Cupressus pygmaea (Lemmon) Sarg.   1/0
CUMA Cupressus macnabiana A. Murr. MacNab's cypress 8/0
CUMA2 Cupressus macrocarpa Hartw. ex Gord. Monterey cypress 10/0
CUNO Cupressus nootkatensis D. Don Alaska cedar    
CHNO Chamaecyparis nootkatensis (D. Don) Spach   9/0
CUSA3 Cupressus sargentii Jepson Sargent's cypress 7/0
CUSE2 Cupressus sempervirens L. Italian cypress 4/0
CUCA3 Curculigo capitulata (Lour.) Kuntze palm-grass 2/0
CUSCU Cuscuta L. dodder 3/0
CUAM3 Cuscuta americana L. American dodder 1/0
CUAP2 Cuscuta approximata Bab. alfalfa dodder    
CUPL2 Cuscuta planiflora Ten.   1/0
CUCE Cuscuta cephalanthi Engelm. buttonbush dodder 0/1
CUCO2 Cuscuta compacta Juss. ex Choisy compact dodder 0/1
CUCO3 Cuscuta coryli Engelm. hazel dodder 0/1
CUCU2 Cuscuta cuspidata Engelm. cusp dodder 0/1
CUEP2 Cuscuta epilinum Weihe flax dodder 1/1
CUEP Cuscuta epithymum (L.) L. clover dodder 1/1
CUGL3 Cuscuta glomerata Choisy rope dodder 0/1
CUGR Cuscuta gronovii Willd. ex J.A. Schultes scaldweed 3/1
CUIN Cuscuta indecora Choisy bigseed alfalfa dodder 2/1
CUPE3 Cuscuta pentagona Engelm. fiveangled dodder 2/0
CUPEP2 Cuscuta pentagona Engelm. var. pentagona fiveangled dodder    
CUAR2 Cuscuta arvensis Bey. ex Engelm.   0/1
CUCA2 Cuscuta campestris Yuncker   5/0
CUPO Cuscuta polygonorum Engelm. smartweed dodder 0/1
CURO Cuscuta rostrata Shuttlw. ex Engelm. & Gray beaked dodder 1/1
CUSA Cuscuta salina Engelm. saltmarsh dodder 1/0
CUUM Cuscuta umbellata Kunth flatglobe dodder 1/0
CUDO3 Cusickiella douglasii (Gray) Rollins alkali cusickiella 2/0
CUME2 Cutandia memphitica (Spreng.) K. Richt. Memphisgrass 2/0
CYTE11 Cyamopsis tetragonoloba (L.) Taubert guar 1/0
CYPS2 Cyamopsis psoralioides DC.   1/0
CYATH Cyathea Sm. treefern 3/0
CYAR Cyathea arborea (L.) Sm. West Indian treefern 5/0
CYAU5 Cyathea australis (R.Br.) Domin rough tree fern 2/0
CYCO18 Cyathea cooperi (Hook. ex F. Muell.) Domin Cooper's cyathea    
SPCO18 Sphaeropteris cooperi (Hook. ex F. Muell.) R. Tryon   4/0
CYCAS Cycas L. cycad 2/0
CYCI3 Cycas circinalis L. queen sago 4/0
CYRE11 Cycas revoluta Thunb. sago palm 4/0
CYXA Cyclachaena xanthifolia (Nutt.) Fresen. giant sumpweed    
IVXA Iva xanthifolia Nutt.   2/1
CYCLA3 Cyclamen L. cyclamen 1/0
CYHE5 Cyclamen hederifolium L.    
CYNE4 Cyclamen neapolitanum Ten.   1/0
CYPE10 Cyclamen persicum Miller florist's cyclamen 1/0
CYDI Cyclanthera dissecta (Torr. & Gray) Arn. cutleaf cyclanthera 0/1
CYPE11 Cyclanthera pedata (L.) Schrader cyclanthera 1/0
CYAT Cycloloma atriplicifolium (Spreng.) Coult. winged pigweed 3/2
CYCNI Cycnium E. Mey.ex Benth. cycnium 1/0
CYTU2 Cycnium tubulosum (L. f.) Engl. 5/0
CYAE Cydista aequinoctialis (L.) Miers guard withe 5/0
CYDI16 Cydista diversifolia (Kunth) Miers 6/0
CYOB2 Cydonia oblonga P. Mill. quince 1/0
CYACA2 Cylindropuntia acanthocarpa (Engelm. & Bigelow) F.M. Knuth var. acanthocarpa buckhorn cholla    
OPAC Opuntia acanthocarpa Engelm. & Bigelow   5/0
CYACC2 Cylindropuntia acanthocarpa (Engelm. & Bigelow) F.M. Knuth var. coloradensis (L. Benson) Pinkava Colorado buckhorn cholla    
OPACC Opuntia acanthocarpa Engelm. & Bigelow var. coloradensis L. Benson   3/0
CYACM Cylindropuntia acanthocarpa (Engelm. & Bigelow) F.M. Knuth var. major (Engelm. & Bigelow) Pinkava buckhorn cholla    
OPACM Opuntia acanthocarpa Engelm. & Bigelow var. major (Engelm. & Bigelow) L. Benson   1/0
CYAR14 Cylindropuntia arbuscula (Engelm.) F.M. Knuth Arizona pencil cholla    
OPAR2 Opuntia arbuscula Engelm.   13/0
CYBI9 Cylindropuntia bigelovii (Engelm.) F.M. Knuth teddybear cholla    
OPBI Opuntia bigelovii Engelm.   4/0
CYCAC Cylindropuntia californica (Torr. & Gray) F.M. Knuth var. californica California pricklypear    
OPPA2 Opuntia parryi Engelm.   2/0
OPPAS Opuntia parryi Engelm. var. serpentina (Engelm.) L. Benson   1/0
CYEC3 Cylindropuntia echinocarpa (Engelm. & Bigelow) F.M. Knuth golden cholla    
OPEC Opuntia echinocarpa Engelm. & Bigelow   6/0
CYFUF Cylindropuntia fulgida (Engelm.) F.M. Knuth var. fulgida jumping cholla    
OPFU Opuntia fulgida Engelm.   5/0
CYIM2 Cylindropuntia imbricata (Haw.) F.M. Knuth tree cholla 13/0
CYIMI Cylindropuntia imbricata (Haw.) F.M. Knuth var. imbricata tree cholla    
OPAR5 Opuntia arborescens Engelm.   0/1
OPIM Opuntia imbricata (Haw.) DC.   6/0
CYKL Cylindropuntia kleiniae (DC.) F.M. Knuth candle cholla    
OPKL Opuntia kleiniae DC.   2/0
CYLE8 Cylindropuntia leptocaulis (DC.) F.M. Knuth Christmas cactus 1/0
OPLE Opuntia leptocaulis DC.   9/0
CYMU12 Cylindropuntia munzii (C.B. Wolf) Backeberg Munz's cholla    
OPMU Opuntia munzii C.B. Wolf   2/0
CYPR19 Cylindropuntia prolifera (Engelm.) F.M. Knuth coastal cholla    
OPPR Opuntia prolifera Engelm.   2/0
CYRA9 Cylindropuntia ramosissima (Engelm.) F.M. Knuth branched pencil cholla    
OPRA Opuntia ramosissima Engelm.   3/0
CYSP8 Cylindropuntia spinosior (Engelm.) F.M. Knuth walkingstick cactus    
OPSP2 Opuntia spinosior (Engelm.) Toumey   14/0
CYTU3 Cylindropuntia tunicata (Lehm.) F.M. Knuth thistle cholla    
OPTU2 Opuntia tunicata (Lehm.) Link & Otto   2/0
CYVE3 Cylindropuntia versicolor (Engelm. ex Coult.) F.M. Knuth staghorn cholla    
OPVE Opuntia versicolor Engelm. ex Coult.   19/0
CYVI16 Cylindropuntia ×viridiflora (Britt. & Rose) F.M. Knuth (pro sp.) [imbricata × whipplei] rat-tail cholla 3/0
CYWH Cylindropuntia whipplei (Engelm. & Bigelow) F.M. Knuth Whipple cholla 1/0
OPWH Opuntia whipplei Engelm. & Bigelow   7/0
CYMU Cymbalaria muralis P.G. Gaertn., B. Mey. & Scherb. Kenilworth ivy 5/0
LICY4 Linaria cymbalaria (L.) P. Mill.   0/1
CYMBI Cymbidium Sw. cymbidium 12/0
CYMBO Cymbopogon Spreng. lemon grass 1/0
CYCI Cymbopogon citratus (DC. ex Nees) Stapf lemon grass 2/0
CYFL2 Cymbopogon flexuosus (Nees ex Steudel) J. F. Watson east indian lemongrass 2/0
CYMA15 Cymbopogon martinii (Roxb.) J. F. Watson rosha grass 2/0
CYNA Cymbopogon nardus (L.) Rendle citronella grass 2/0
CYRE Cymbopogon refractus (R. Br.) A. Camus barbwire grass 1/0
CYSC8 Cymbopogon schoenanthus (L.) Spreng. [excluded] camel grass 2/0
CYFR4 Cymophyllus fraserianus (Ker-Gawl.) Kartesz & Gandhi Fraser's cymophyllus    
CYFR Cymophyllus fraseri (Andr.) Mackenzie ex Britt.   5/1
CYAB Cymopterus aboriginum M.E. Jones Indian springparsley 3/0
CYAC Cymopterus acaulis (Pursh) Raf. plains springparsley 0/1
CYACF Cymopterus acaulis (Pursh) Raf. var. fendleri (Gray) Goodrich Fendler's springparsley 3/0
CYFE Cymopterus fendleri Gray   4/0
CYACG Cymopterus acaulis (Pursh) Raf. var. greeleyorum J. Grimes & Packard Greeley springparsley 8/0
CYBU Cymopterus bulbosus A. Nels. bulbous springparsley 5/0
CYCO4 Cymopterus corrugatus M.E. Jones wrinklewing springparsley 3/0
CYGI Cymopterus gilmanii Morton Gilman's springparsley 2/0
CYGL2 Cymopterus globosus (S. Wats.) S. Wats. globe springparsley 2/0
CYMO Cymopterus montanus Nutt. ex Torr. & Gray mountain springparsley    
PHMO10 Phellopterus montanus Nutt. ex Torr. & Gray (pro syn.)   0/1
CYNE Cymopterus newberryi (S. Wats.) M.E. Jones sweetroot springparsley 3/0
CYPU2 Cymopterus purpureus S. Wats. purple springparsley 3/0
CYRI2 Cymopterus ripleyi Barneby Ripley's springparsley 2/0
CYAN5 Cynanchum angustifolium Pers. gulf coast swallow-wort 3/1
CYLA Cynanchum laeve (Michx.) Pers. honeyvine 2/1
AMAL3 Ampelamus albidus (Nutt.) Britt.   1/0
GOLA5 Gonolobus laevis Michx.   0/1
CYLO11 Cynanchum louiseae Kartesz & Gandhi Louise's swallow-wort    
CYNI Cynanchum nigrum (L.) Pers., non Cav.   0/1
CYVI3 Cynanchum vincetoxicum (L.) Pers. white swallow-wort 1/0
VIOF Vincetoxicum officinale Moench   1/0
CYCA Cynara cardunculus L. cardoon 6/0
CYSC2 Cynara scolymus L. globe artichoke 3/0
CYDA Cynodon dactylon (L.) Pers. Bermudagrass 5/1
CADA5 Capriola dactylon (L.) Kuntze   0/1
CYPL2 Cynodon plectostachyus (K. Schum.) Pilger stargrass 1/0
CYST70 Cynodontium strumiferum (Hedw.) Lindb. cynodontium moss 3/0
CYNOG Cynoglossum L. hound's tongue 1/0
CYGR Cynoglossum grande Dougl. ex Lehm. Pacific hound's tongue 2/0
CYOF Cynoglossum officinale L. gypsyflower 2/1
CYVI Cynoglossum virginianum L. wild comfrey 3/1
CYVIB Cynoglossum virginianum L. var. boreale (Fern.) Cooperrider wild comfrey    
CYBO Cynoglossum boreale Fern.   0/1
CYRA8 Cynometra ramiflora L. cynometra 1/0
CYCR Cynosurus cristatus L. crested dogstail grass 0/2
CYEC Cynosurus echinatus L. bristly dogstail grass 0/1
CYPER Cyperus L. flatsedge 3/0
CYAC2 Cyperus acuminatus Torr. & Hook. ex Torr. tapertip flatsedge 1/2
CYAG Cyperus aggregatus (Willd.) Endl. inflatedscale flatsedge    
CYCA17 Cyperus cayennensis (Lam.) Britt., non Willd. ex Link   0/1
CYAR4 Cyperus articulatus L. jointed flatsedge 1/0
CYBI6 Cyperus bipartitus Torr. slender flatsedge 0/1
CYRI Cyperus rivularis Kunth   2/1
CYCO Cyperus compressus L. poorland flatsedge 1/2
CYCR6 Cyperus croceus Vahl Baldwin's flatsedge    
CYGL3 Cyperus globulosus auct. non Aubl. [misapplied]   0/1
CYDE2 Cyperus dentatus Torr. toothed flatsedge 0/1
CYDI3 Cyperus diandrus Torr. umbrella flatsedge 0/1
CYEC2 Cyperus echinatus (L.) Wood globe flatsedge 1/0
CYOV Cyperus ovularis (Michx.) Torr.   2/1
CYER2 Cyperus erythrorhizos Muhl. redroot flatsedge 3/2
CYHA8 Cyperus halei Torr. ex Britt.   0/1
CYES Cyperus esculentus L. yellow nutsedge 3/2
CYFI Cyperus filicinus Vahl fern flatsedge 0/1
CYFL Cyperus flavescens L. yellow flatsedge 3/2
CYFL5 Cyperus flavicomus Michx. whiteedge flatsedge    
CYSA4 Cyperus sabulosus (Mart. & Schrad. ex Nees) Steud.   0/1
CYFU3 Cyperus fuscus L. brown flatsedge 0/1
CYGR2 Cyperus grayi Torr. Gray's flatsedge 0/1
CYHA Cyperus haspan L. haspan flatsedge 1/3
CYHO Cyperus houghtonii Torr. Houghton's flatsedge 0/1
CYHY Cyperus hystricinus Fern. bristly flatsedge 0/1
CYIR Cyperus iria L. ricefield flatsedge 1/1
CYLA3 Cyperus lancastriensis Porter ex Gray manyflower flatsedge 1/2
CYLUL Cyperus lupulinus (Spreng.) Marcks ssp. lupulinus Great Plains flatsedge    
CYFI2 Cyperus filiculmis auct. non Vahl [misapplied]   0/1
CYLUM Cyperus lupulinus (Spreng.) Marcks ssp. macilentus (Fern.) Marcks Great Plains flatsedge    
CYBU4 Cyperus bushii Britt.   0/1
CYOD Cyperus odoratus L. fragrant flatsedge 3/2
CYEN Cyperus engelmannii Steud.   0/1
CYFE3 Cyperus ferax L.C. Rich.   1/1
CYFE4 Cyperus ferruginescens Boeckl.   1/0
CYSP6 Cyperus speciosus Vahl   0/1
CYOX Cyperus oxylepis Nees ex Steud. sharpscale flatsedge 1/0
CYPA8 Cyperus papyrus L. papyrus 2/0
CYPO Cyperus polystachyos Rottb. manyspike flatsedge 1/1
CYPOP2 Cyperus polystachyos Rottb. var. polystachyos manyspike flatsedge    
CYPA20 Cyperus paniculatus Rottb.   0/1
CYPOT Cyperus polystachyos Rottb. var. texensis (Torr.) Fern. Texan flatsedge    
CYMI5 Cyperus microdontus Torr.   0/1
CYPS Cyperus pseudovegetus Steud. marsh flatsedge 3/2
CYRE3 Cyperus refractus Engelm. ex Boeckl. reflexed flatsedge 0/1
CYRE4 Cyperus retrofractus (L.) Torr. rough flatsedge 0/1
CYRE5 Cyperus retrorsus Chapman pine barren flatsedge 4/0
CYRER2 Cyperus retrorsus Chapman var. retrorsus pine barren flatsedge    
CYTO Cyperus torreyi Britt.   0/1
CYRO Cyperus rotundus L. nutgrass 13/1
CYSC3 Cyperus schweinitzii Torr. Schweinitz's flatsedge 0/1
CYSE3 Cyperus setigerus Torr. & Hook. lean flatsedge    
CYHA10 Cyperus hallii Britt.   0/1
CYSQ Cyperus squarrosus L. bearded flatsedge 2/1
CYAR3 Cyperus aristatus Rottb.   1/0
CYIN9 Cyperus inflexus Muhl.   0/1
CYST Cyperus strigosus L. strawcolored flatsedge 7/2
CYSU Cyperus surinamensis Rottb. tropical flatsedge 1/0
CYVI2 Cyperus virens Michx. green flatsedge 2/0
CYBE3 Cyphomandra betacea (Cav.) Sendtner tree tomato 2/0
CYGY Cyphomeris gypsophiloides (Mart. & Gal.) Standl. red cyphomeris 1/0
CYPRI Cypripedium L. lady's slipper 4/0
CYAC3 Cypripedium acaule Ait. moccasin flower 17/1
FIAC Fissipes acaulis (Ait.) Small   0/1
CYAN2 Cypripedium ×andrewsii A.M. Fuller [candidum × parviflorum] 2/0
CYAR5 Cypripedium arietinum Ait. f. ram's head lady's slipper 5/1
CYCA4 Cypripedium californicum Gray California lady's slipper 4/0
CYCA5 Cypripedium candidum Muhl. ex Willd. white lady's slipper 4/2
CYGU Cypripedium guttatum Sw. spotted lady's slipper 1/0
CYKE2 Cypripedium kentuckiense C.F. Reed Kentucky lady's slipper 15/0
CYMO2 Cypripedium montanum Dougl. ex Lindl. mountain lady's slipper 4/0
CYPA19 Cypripedium parviflorum Salisb. lesser yellow lady's slipper 3/1
CYPAP4 Cypripedium parviflorum Salisb. var. parviflorum lesser yellow lady's slipper    
CYCAP3 Cypripedium calceolus L. ssp. parviflorum (Salisb.) Hultén   1/0
CYPAP3 Cypripedium parviflorum Salisb. var. pubescens (Willd.) Knight greater yellow lady's slipper    
CYCAP2 Cypripedium calceolus L. var. pubescens (Willd.) Correll   5/0
CYPU10 Cypripedium pubescens Willd.   4/0
CYPUP Cypripedium pubescens Willd. var. pubescens Willd. [superfluous autonym]   2/0
CYPA5 Cypripedium passerinum Richards. sparrowegg lady's slipper 0/1
CYRE6 Cypripedium reginae Walt. showy lady's slipper 8/2
CYPA6 Cyrilla parvifolia Raf. littleleaf titi    
CYRAP2 Cyrilla racemiflora L. var. parvifolia (Raf.) E. Murr.   1/0
CYRA Cyrilla racemiflora L. swamp titi 12/2
CYFA2 Cyrtomium falcatum (L. f.) K. Presl Japanese netvein hollyfern 2/0
CYBU3 Cystopteris bulbifera (L.) Bernh. bulblet bladderfern 6/1
FIBU Filix bulbifera (L.) Underwood   0/1
CYFR2 Cystopteris fragilis (L.) Bernh. brittle bladderfern 3/0
FIFR Filix fragilis (L.) Underwood   0/1
CYMO3 Cystopteris montana (Lam.) Bernh. ex Desv. mountain bladderfern    
FIMO Filix montana (Lam.) Underwood   0/1
CYTE7 Cystopteris tenuis (Michx.) Desv. upland brittle bladderfern 2/0
CYMU3 Cytisus multiflorus (L'Hér.) Sweet white spanishbroom 1/0
CYSC4 Cytisus scoparius (L.) Link Scotch broom 9/2
CYST7 Cytisus striatus (Hill) Rothm. striated broom 1/0
DADA2 Dacrycarpus dacrydioides (A. Rich.) Laubenf. kahika 2/0
DAEX Dacryodes excelsa Vahl candletree 1/0
DACTY Dactylis L. orchardgrass 1/0
DAGL Dactylis glomerata L. orchardgrass 6/3
DAGLA Dactylis glomerata L. ssp. aschersoniana (Graebn.) Thellung Ascherson's orchardgrass    
DAAS Dactylis aschersoniana Graebn.   2/0
DAAE Dactyloctenium aegyptium (L.) Willd. Egyptian grass 2/2
DARA2 Dactyloctenium radulans (R. Br.) Beauv. buttongrass 1/0
DAVI6 Dactylorhiza viridis (L.) A.M. Bateman, A.M. Pridgeon & M. Chase longbract frog orchid    
COBR3 Coeloglossum bracteatum (Muhl. ex Willd.) Parl.   0/1
DAHLI Dahlia Cav. dahlia 2/0
DACO4 Dahlia coccinea Cav. [excluded] red dahlia 3/0
DAPI3 Dahlia pinnata Cav. pinnate dahlia    
DARO Dahlia rosea Cav.   1/0
DAEC Dalbergia ecastaphyllum (L.) Taubert coinvine 1/0
DAMO3 Dalbergia monetaria L. f. moneybush 1/0
DALEA Dalea L. prairie clover 1/0
DAAL Dalea albiflora A. Gray whiteflower prairie clover 2/0
DAAU Dalea aurea Nutt. ex Pursh golden prairie clover 1/0
PAAU4 Parosela aurea (Nutt. ex Pursh) Britt.   0/1
DACA7 Dalea candida Michx. ex Willd. white prairie clover 5/0
DACAC Dalea candida Michx. ex Willd. var. candida white prairie clover    
PECA21 Petalostemon candidus Michx.   0/1
DACAO Dalea candida Michx. ex Willd. var. oligophylla (Torr.) Shinners white prairie clover    
DAOL2 Dalea oligophylla (Torr.) Shinners   3/0
PEOL3 Petalostemon oligophyllus (Torr.) Torr. ex Smyth   0/1
DACOC Dalea compacta Spreng. var. compacta compact prairie clover    
PECO28 Petalostemon compactus (Spreng.) Swezey   0/1
PEDE20 Petalostemon decumbens Nutt.   1/0
DAEN Dalea enneandra Nutt. nineanther prairie clover    
PAEN2 Parosela enneandra (Nutt.) Britt.   0/1
DAFO2 Dalea foliosa (Gray) Barneby leafy prairie clover    
PEFO5 Petalostemon foliosus Gray   0/1
DAFO Dalea formosa Torr. featherplume 13/0
DAFR2 Dalea frutescens A. Gray black prairie clover 4/0
DAGA Dalea gattingeri (Heller) Barneby purpletassels    
PEGA6 Petalostemon gattingeri (Heller) Heller   1/0
DAGR2 Dalea greggii Gray Gregg's prairie clover 6/0
DALAL Dalea lanata Spreng. var. lanata woolly prairie clover    
PALA20 Parosela lanata (Spreng.) Britt.   0/1
DALAT Dalea lanata Spreng. var. terminalis (M.E. Jones) Barneby woolly prairie clover 1/0
DAGL3 Dalea glaberrima S. Wats.   2/0
DALE3 Dalea leporina (Ait.) Bullock foxtail prairie clover    
DAAL4 Dalea alopecuroides Willd.   0/1
DAMU Dalea multiflora (Nutt.) Shinners roundhead prairie clover    
PEMU12 Petalostemon multiflorus Nutt.   0/1
DANA Dalea nana Torr. ex Gray dwarf prairie clover 3/0
DANAN Dalea nana Torr. ex Gray var. nana dwarf prairie clover    
PANA4 Parosela nana (Torr. ex Gray) Heller   0/1
DANE Dalea neomexicana (A. Gray) Cory downy prairie clover 1/0
DAOR2 Dalea ornata (Dougl. ex Hook.) Eat. & J. Wright Blue Mountain prairie clover 2/0
DAPO Dalea pogonathera A. Gray bearded prairie clover 1/0
DAPOP Dalea pogonathera A. Gray var. pogonathera bearded prairie clover 1/0
DAPU5 Dalea purpurea Vent. purple prairie clover 6/0
DAPUP Dalea purpurea Vent. var. purpurea purple prairie clover 2/0
PEPU15 Petalostemon purpureus (Vent.) Rydb.   0/1
DASC4 Dalea scariosa S. Wats. Albuquerque prairie clover 2/0
PESC6 Petalostemon scariosus (S. Wats.) Wemple   3/0
DASE3 Dalea searlsiae (Gray) Barneby Searls' prairie clover 3/0
PESE14 Petalostemon searlsiae Gray   1/0
DATE5 Dalea tenuifolia (Gray) Shinners slimleaf prairie clover    
PETE16 Petalostemon tenuifolius Gray   0/1
DATE6 Dalea tenuis (Coult.) Shinners pinkglobe prairie clover 1/0
DAVE Dalea versicolor Zucc. oakwoods prairie clover 2/0
DAVIV Dalea villosa (Nutt.) Spreng. var. villosa silky prairie clover    
PEVI12 Petalostemon villosus Nutt.   0/1
DASC5 Dalechampia scandens L. spurgecreeper 1/0
DARE Dalibarda repens L. robin runaway 3/1
DACA12 Damasonium californicum Torr. ex Benth. California damsonium 3/0
MACA3 Machaerocarpus californicus (Torr. ex Benth.) Small   1/0
DACA3 Danthonia californica Boland. California oatgrass 2/1
DACO Danthonia compressa Austin ex Peck flattened oatgrass 0/2
DADE Danthonia decumbens (L.) DC. common heathgrass    
SIDE2 Sieglingia decumbens (L.) Bernh.   1/2
DAEP2 Danthonia epilis Scribn. Carolina oatgrass 0/1
DAIN Danthonia intermedia Vasey timber oatgrass 0/2
DAPA2 Danthonia parryi Scribn. Parry's oatgrass 0/1
DASE2 Danthonia sericea Nutt. downy danthonia 4/2
DASP2 Danthonia spicata (L.) Beauv. ex Roemer & J.A. Schultes poverty oatgrass 0/2
DAUN Danthonia unispicata (Thurb.) Munro ex Macoun onespike danthonia 5/1
DALA11 Daphne laureola L. spurgelaurel 1/0
DAME3 Daphne mezereum L. paradise plant 1/1
DARLI Darlingtonia Torr. California pitcherplant 1/0
DACA5 Darlingtonia californica Torr. California pitcherplant 15/0
DAPE Darmera peltata (Torr. ex Benth.) Voss Indian rhubarb    
PEPE2 Peltiphyllum peltatum (Torr. ex Benth.) Engl.   2/0
DAFRF Dasiphora fruticosa (L.) Rydb. ssp. floribunda (Pursh) Kartesz shrubby cinquefoil    
DAFL3 Dasiphora floribunda (Pursh) Raf.   3/1
DAFR3 Dasiphora fruticosa auct. non (L.) Rydb. [misapplied]   0/1
POFL13 Potentilla floribunda Pursh   1/0
POFR4 Potentilla fruticosa auct. non L. [misapplied]   9/0
POFRF Potentilla fruticosa L. ssp. floribunda (Pursh) Elkington   1/0
DAMA Dasistoma macrophylla (Nutt.) Raf. mullein foxglove 1/0
AFMA Afzelia macrophylla (Nutt.) Kuntze   0/1
DASYL Dasylirion Zucc. sotol 1/0
DAWH2 Dasylirion wheeleri S. Wats. common sotol 7/0
DAPU7 Dasyochloa pulchella (Kunth) Willd. ex Rydb. low woollygrass 1/0
TRPU10 Tridens pulchellus (Kunth) A.S. Hitchc.   0/1
DAVI2 Dasypyrum villosum (L.) Coss. & Durieu ex P. Candargy mosquitograss    
HAVI5 Haynaldia villosa (L.) Schur   2/0
DADI2 Datura discolor Bernh. desert thorn-apple 1/0
DAIN2 Datura inoxia P. Mill. pricklyburr 3/0
DAIN5 Datura innoxia Miller [orthographic variant]   1/0
DAME Datura metel auct. non L. [misapplied]   1/1
DAME2 Datura meteloides auct. p.p., non Dunal   6/0
DAQU Datura quercifolia Kunth Chinese thorn-apple 1/0
DAFE Datura ferox auct. non L. [misapplied]   1/0
DAST Datura stramonium L. jimsonweed 7/1
DAWR2 Datura wrightii Regel sacred thorn-apple 11/0
DACA6 Daucus carota L. Queen Anne's lace 9/1
DAPU3 Daucus pusillus Michx. American wild carrot 3/0
DEVE Decodon verticillatus (L.) Ell. swamp loosestrife 3/2
DEBA4 Decumaria barbara L. woodvamp 2/2
DEDEC Dedeckera Reveal & J.T. Howell July gold 2/0
DEEU Dedeckera eurekensis Reveal & J.T. Howell July gold 6/0
DECO13 Deinandra conjugens (Keck) B.G. Baldwin Otay tarweed    
HECO8 Hemizonia conjugens Keck   2/0
DEINI8 Deinandra increscens (Hall ex Keck) B.G. Baldwin ssp. increscens grassland tarweed    
HEINI Hemizonia increscens (Hall ex Keck) Tanowitz ssp. increscens (Hall ex Keck) Tanowitz [superfluous autonym]   2/0
DERE Delonix regia (Bojer ex Hook.) Raf. royal poinciana 17/0
DELOS Delosperma N.E. Br. delosperma 1/0
DELPH Delphinium L. larkspur 5/0
DEAN Delphinium andersonii Gray Anderson's larkspur 10/0
DEBA2 Delphinium barbeyi (Huth) Huth subalpine larkspur 7/0
DEBI Delphinium bicolor Nutt. little larkspur 2/0
DECA2 Delphinium cardinale Hook. scarlet larkspur 9/0
DECA3 Delphinium carolinianum Walt. Carolina larkspur 6/1
DECAV2 Delphinium carolinianum Walt. ssp. virescens (Nutt.) Brooks Carolina larkspur 1/0
DEVI Delphinium virescens Nutt.   0/1
DEDET Delphinium decorum Fisch. & C.A. Mey. ssp. tracyi Ewan coastal larkspur 2/0
DEEX Delphinium exaltatum Ait. tall larkspur 0/1
DEGE Delphinium geraniifolium Rydb. Clark Valley larkspur 2/0
DEGE2 Delphinium geyeri Greene Geyer's larkspur 1/0
DEGL3 Delphinium glaucum S. Wats. Sierra larkspur 7/1
DEHE Delphinium hesperium Gray foothill larkspur 1/0
DELU Delphinium luteum Heller yellow larkspur 2/0
DEME Delphinium menziesii DC. Menzies' larkspur 1/0
DEMEM Delphinium menziesii DC. ssp. menziesii Menzies' larkspur 1/0
DENU Delphinium nudicaule Torr. & Gray red larkspur 6/0
DENU2 Delphinium nuttallianum Pritz. ex Walp. twolobe larkspur 11/0
DENE3 Delphinium nelsonii Greene   1/1
DEOC Delphinium ×occidentale (S. Wats.) S. Wats. (pro sp.) [barbeyi × glaucum] 5/0
DEPA Delphinium parishii Gray desert larkspur 2/0
DEPAP3 Delphinium parishii Gray ssp. parishii Parish's larkspur 2/0
DEAM Delphinium amabile Tidestrom   3/0
DEPA2 Delphinium parryi Gray San Bernardino larkspur 8/0
DEPAE2 Delphinium parryi Gray ssp. eastwoodiae Ewan Eastwood's larkspur 4/0
DEPAP5 Delphinium parryi Gray ssp. parryi San Bernardino larkspur 3/0
DEPO Delphinium polycladon Eastw. mountain marsh larkspur 3/0
DERA Delphinium ramosum Rydb. mountain larkspur 1/0
DESC Delphinium scaposum Greene tall mountain larkspur 7/0
DETR3 Delphinium treleasei Bush ex K.C. Davis glade larkspur 0/1
DETR Delphinium tricorne Michx. dwarf larkspur 7/1
DETR2 Delphinium trolliifolium Gray Columbian larkspur 3/0
DEVA Delphinium variegatum Torr. & Gray royal larkspur 5/0
DEWO Delphinium wootonii Rydb. Organ Mountain larkspur 1/0
DEVIW Delphinium virescens Nutt. ssp. wootonii (Rydb.) Ewan   8/0
DENDR13 Dendrobium Sw. dendrobium 3/0
DEBI7 Dendrobium bigibbum Lindl. 1/0
DEDI14 Dendrobium discolor Lindl. 1/0
DELI7 Dendrobium linguiforme Sm. 3/0
DENDR7 Dendrocalamus Nees 1/0
DEHA3 Dendromecon harfordii Kellogg Harford's tree poppy 2/0
DERI Dendromecon rigida Benth. tree poppy 10/1
DERIR Dendromecon rigida Benth. ssp. rhamnoides (Greene) Thorne tree poppy 2/0
DEBI4 Dendropemon bicolor Krug & Urban Puerto Rico leechbush 1/0
DECA9 Dendropemon caribaeus Krug & Urban four-angle leechbush 2/0
DEPU2 Dennstaedtia punctilobula (Michx.) T. Moore eastern hayscented fern 0/1
DEAC4 Deparia acrostichoides (Sw.) M. Kato silver false spleenwort 2/0
ATTH Athyrium thelypterioides (Michx.) Desv.   0/1
DECE Deschampsia cespitosa (L.) P. Beauv. tufted hairgrass 1/0
DECA18 Deschampsia caespitosa (L.) Beauv.   1/2
DEDA Deschampsia danthonioides (Trin.) Munro annual hairgrass 1/1
DEEL Deschampsia elongata (Hook.) Munro slender hairgrass 3/1
DEFL Deschampsia flexuosa (L.) Trin. wavy hairgrass 1/2
DEHO2 Deschampsia holciformis J. Presl Pacific hairgrass 0/1
DEINI Descurainia incana (Bernh. ex Fisch. & C.A. Mey.) Dorn ssp. incana mountain tansymustard    
DERI2 Descurainia richardsonii O.E. Schulz   2/0
DEINI2 Descurainia incana (Bernh. ex Fisch. & C.A. Mey.) Dorn ssp. incisa (Engelm.) Kartesz & Gandhi mountain tansymustard    
SOIN3 Sophia incisa (Engelm.) Greene   0/1
DEINP Descurainia incana (Bernh. ex Fisch. & C.A. Mey.) Dorn ssp. procera (Greene) Kartesz & Gandhi mountain tansymustard    
SOHA6 Sophia hartwegiana (Fourn.) Greene   0/1
DEINV Descurainia incana (Bernh. ex Fisch. & C.A. Mey.) Dorn ssp. viscosa (Rydb.) Kartesz & Gandhi mountain tansymustard 2/0
DEOB Descurainia obtusa (Greene) O.E. Schulz blunt tansymustard 2/0
DEPI Descurainia pinnata (Walt.) Britt. western tansymustard 8/0
DEPIP3 Descurainia pinnata (Walt.) Britt. ssp. pinnata western tansymustard    
SOPI6 Sophia pinnata (Walt.) T.J. Howell   0/1
DESO2 Descurainia sophia (L.) Webb ex Prantl herb sophia 1/0
SOSO7 Sophia sophia (L.) Britt.   0/1
DESP4 Desfontainia spinosa Ruiz & Pav. taique 3/0
DECO2 Desmanthus cooleyi (Eaton) Trel. Cooley's bundleflower 1/0
DEIL Desmanthus illinoensis (Michx.) MacM. ex B.L. Robins. & Fern. Illinois bundleflower 7/0
ACIL2 Acuan illinoense (Michx.) Kuntze   0/1
DELE2 Desmanthus leptolobus Torr. & Gray slenderlobe bundleflower    
ACLE4 Acuan leptolobum (Torr. & Gray) Kuntze   0/1
DETAB Desmanthus tatuhyensis Hoehne var. brevipes (B.L. Turner) Luckow dwarf bundleflower    
DEBR3 Desmanthus brevipes B.L. Turner   1/0
DEVI3 Desmanthus virgatus (L.) Willd. wild tantan 2/0
DELA70 Desmatodon latifolius (Hedw.) Brid. wideleaf desmatodon moss 6/0
DEOB70 Desmatodon obtusifolius (Schwaegr.) Schimp. obtuseleaf desmatodon moss    
TOOB3 Tortula obtusifolia (Schwaegr.) Mathieu   5/0
DESMO Desmodium Desv. ticktrefoil 1/0
DEBA3 Desmodium batocaulon A. Gray San Pedro ticktrefoil 3/0
DECA7 Desmodium canadense (L.) DC. showy ticktrefoil 3/0
MECA14 Meibomia canadensis (L.) Kuntze   0/1
DECA8 Desmodium canescens (L.) DC. hoary ticktrefoil 5/0
MECA16 Meibomia canescens (L.) Kuntze   0/1
DECI Desmodium ciliare (Muhl. ex Willd.) DC. hairy small-leaf ticktrefoil 1/0
DECU Desmodium cuspidatum (Muhl. ex Willd.) DC. ex Loud. largebract ticktrefoil 1/0
DECUC Desmodium cuspidatum (Muhl. ex Willd.) DC. ex Loud. var. cuspidatum largebract ticktrefoil    
MEBR3 Meibomia bracteosa (Michx.) Kuntze   0/1
DEFL3 Desmodium floridanum Chapman Florida ticktrefoil    
MERH2 Meibomia rhombifolia Vail p.p.   0/1
DEGL4 Desmodium glabellum (Michx.) DC. Dillenius' ticktrefoil    
MEGL4 Meibomia glabella (Michx.) Kuntze   0/1
DEGL5 Desmodium glutinosum (Muhl. ex Willd.) Wood pointedleaf ticktrefoil    
MEGR6 Meibomia grandiflora auct. non (Walt.) Kuntze [misapplied]   0/1
DEGR2 Desmodium grahamii A. Gray Graham's ticktrefoil 3/0
DEHE9 Desmodium heterophyllum (Willd.) DC. variable-leaf ticktrefoil 1/0
DEIL2 Desmodium illinoense Gray Illinois ticktrefoil    
MEIL Meibomia illinoensis (Gray) Kuntze   0/1
DEIN3 Desmodium incanum DC. zarzabacoa comun 4/0
DEINI3 Desmodium incanum DC. var. incanum zarzabacoa comun 1/0
DEIN2 Desmodium intortum (P. Mill.) Urban greenleaf ticktrefoil 3/0
DELA2 Desmodium laevigatum (Nutt.) DC. smooth ticktrefoil 1/0
MELA8 Meibomia laevigata (Nutt.) Kuntze   0/1
DELI2 Desmodium lineatum DC. sand ticktrefoil    
MEAR11 Meibomia arenicola Vail   0/1
DEMA2 Desmodium marilandicum (L.) DC. smooth small-leaf ticktrefoil    
MEMA9 Meibomia marilandica (L.) Kuntze   0/1
DENE Desmodium neomexicanum Gray New Mexico ticktrefoil 2/0
DENU4 Desmodium nudiflorum (L.) DC. nakedflower ticktrefoil 2/0
MENU2 Meibomia nudiflora (L.) Kuntze   0/1
DEOB5 Desmodium obtusum (Muhl. ex Willd.) DC. stiff ticktrefoil 4/0
MEOB6 Meibomia obtusa (Muhl. ex Willd.) Vail   0/1
MERI Meibomia rigida (Ell.) Kuntze   0/1
DEOC2 Desmodium ochroleucum M.A. Curtis ex Canby cream ticktrefoil    
MEOC Meibomia ochroleuca (M.A. Curtis ex Canby) Kuntze   0/1
DEPA6 Desmodium paniculatum (L.) DC. panicledleaf ticktrefoil 2/0
DEPAP2 Desmodium paniculatum (L.) DC. var. paniculatum panicledleaf ticktrefoil    
MEPA10 Meibomia paniculata (L.) Kuntze   0/1
DEPA7 Desmodium pauciflorum (Nutt.) DC. fewflower ticktrefoil    
MEPA9 Meibomia pauciflora (Nutt.) Kuntze   0/1
DEPE80 Desmodium perplexum Schub. perplexed ticktrefoil 1/0
MEDI8 Meibomia dillenii (Darl.) Kuntze   0/1
DERO2 Desmodium rosei B.G. Schub. Rose's ticktrefoil 1/0
DERO3 Desmodium rotundifolium DC. prostrate ticktrefoil 2/0
MEMI5 Meibomia michauxii Vail   0/1
DESE Desmodium sessilifolium (Torr.) Torr. & Gray sessileleaf ticktrefoil 2/0
MESE3 Meibomia sessilifolia (Torr.) Kuntze   0/1
DEST2 Desmodium strictum (Pursh) DC. pine barren ticktrefoil 1/0
MEST7 Meibomia stricta (Pursh) Kuntze   0/1
DETO Desmodium tortuosum (Sw.) DC. dixie ticktrefoil 1/0
DETR4 Desmodium triflorum (L.) DC. threeflower ticktrefoil 1/0
DEVI4 Desmodium viridiflorum (L.) DC. velvetleaf ticktrefoil    
MEVI8 Meibomia viridiflora (L.) Kuntze   0/1
DISM3 Diamorpha smallii Britt. ex Small elf orpine    
SESM2 Sedum smallii (Britt. ex Small) Ahles   1/0
DICA11 Dianella caerulea Sims cerulean flaxlily 1/0
DISA6 Dianella sandwicensis Hook. & Arn. 'uki'uki 1/0
DIAR Dianthus armeria L. Deptford pink 5/1
DIBA Dianthus barbatus L. sweetwilliam 1/1
DIDE Dianthus deltoides L. maiden pink 1/1
DISU12 Dianthus superbus L. fringed pink 1/0
DILA Diapensia lapponica L. pincushion plant 3/1
DIARR Diarrhena Beauv. beakgrain 1/0
DIAM Diarrhena americana Beauv. American beakgrain 0/1
DIFE Diarina festucoides Raf.   2/0
KOAR2 Korycarpus arundinaceus Zea ex Lag.   0/1
DICA Dicentra canadensis (Goldie) Walp. squirrel corn 5/0
BICA4 Bicuculla canadensis (Goldie) Millsp.   0/1
DICU Dicentra cucullaria (L.) Bernh. dutchman's breeches 9/0
BICU2 Bicuculla cucullaria (L.) Millsp.   0/1
DIEX Dicentra eximia (Ker-Gawl.) Torr. turkey corn 3/0
BIEX Bicuculla eximia (Ker-Gawl.) Millsp.   0/1
DIFO Dicentra formosa (Haw.) Walp. Pacific bleeding heart 6/0
DINE Dicentra nevadensis Eastw. Sierra bleeding heart    
DIFON Dicentra formosa (Haw.) Walp. ssp. nevadensis (Eastw.) Munz   1/0
DIPA Dicentra pauciflora S. Wats. shorthorn steer's-head 2/0
DIUN Dicentra uniflora Kellogg longhorn steer's-head 5/0
DICHA2 Dichanthelium (A.S. Hitchc. & Chase) Gould rosette grass 1/0
DIAC Dichanthelium aciculare (Desv. ex Poir.) Gould & C.A. Clark needleleaf rosette grass 3/1
PAAC11 Panicum aciculare Desv. ex Poir.   0/2
PAAN9 Panicum angustifolium Ell.   0/2
PAAR10 Panicum arenicoloides Ashe   0/1
PABE9 Panicum bennettense W.V. Brown   0/1
PAFU3 Panicum fusiforme A.S. Hitchc.   0/1
PANE6 Panicum neuranthum Griseb.   0/1
PAOV3 Panicum ovinum Scribn. & J.G. Sm.   0/1
PAPI5 Panicum pinetorum Swallen   0/1
DIAC2 Dichanthelium acuminatum (Sw.) Gould & C.A. Clark tapered rosette grass 4/1
DIACA Dichanthelium acuminatum (Sw.) Gould & C.A. Clark var. acuminatum tapered rosette grass    
PAAC5 Panicum acuminatum Sw.   1/0
PAAU6 Panicum auburne Ashe   0/1
PABE6 Panicum benneri Fern.   0/1
PACH7 Panicum chrysopsidifolium Nash   0/1
DIACF Dichanthelium acuminatum (Sw.) Gould & C.A. Clark var. fasciculatum (Torr.) Freckmann western panicgrass    
PACU3 Panicum curtifolium Nash   0/1
PAHU4 Panicum huachucae Ashe   0/2
PAIM3 Panicum implicatum Scribn.   0/2
PALA29 Panicum languidum A.S. Hitchc.   0/1
PALA18 Panicum lanuginosum Ell., non Bosc ex Spreng.   0/1
PAOC Panicum occidentale Scribn.   0/1
PAPA Panicum pacificum A.S. Hitchc. & Chase   0/1
PASU6 Panicum subvillosum Ashe   0/1
PATE15 Panicum tennesseense Ashe   0/2
DIACL Dichanthelium acuminatum (Sw.) Gould & C.A. Clark var. lindheimeri (Nash) Gould & C.A. Clark Lindheimer panicgrass    
PALI11 Panicum lindheimeri Nash   0/2
DIACT2 Dichanthelium acuminatum (Sw.) Gould & C.A. Clark var. thermale (Boland.) Freckmann Geysers panicgrass    
PATH Panicum thermale Boland.   0/1
DIACT Dichanthelium acuminatum (Sw.) Gould & C.A. Clark var. thurowii (Scribn. & J.G. Sm.) Gould & C.A. Clark Thurow's panicgrass    
PATH4 Panicum thurowii Scribn. & J.G. Sm.   0/1
DIBO Dichanthelium boreale (Nash) Freckmann northern panicgrass    
PABI7 Panicum bicknellii Nash   0/1
PABO8 Panicum boreale Nash   0/2
PABU2 Panicum bushii Nash   0/1
PACA19 Panicum calliphyllum Ashe   0/1
DIBO2 Dichanthelium boscii (Poir.) Gould & C.A. Clark Bosc's panicgrass    
PABO5 Panicum boscii Poir.   0/2
DICL Dichanthelium clandestinum (L.) Gould deertongue 1/1
PACL5 Panicum clandestinum L.   0/2
DICO2 Dichanthelium commutatum (J.A. Schultes) Gould variable panicgrass 1/1
PAAS3 Panicum ashei Pearson ex Ashe   0/2
PACO21 Panicum commutatum J.A. Schultes   0/2
PAEQ2 Panicum equilaterale Scribn.   0/1
PAJO3 Panicum joorii Vasey   0/1
PAMU10 Panicum mutabile Scribn. & J.G. Sm.   0/2
DICO4 Dichanthelium consanguineum (Kunth) Gould & C.A. Clark blood panicgrass    
PACO31 Panicum consanguineum Kunth   0/2
PADE10 Panicum deamii A.S. Hitchc. & Chase   0/1
DIDE4 Dichanthelium depauperatum (Muhl.) Gould starved panicgrass    
PADE12 Panicum depauperatum Muhl.   0/2
DIDIB Dichanthelium dichotomum (L.) Gould var. breve (A.S. Hitchc. & Chase) Gould & C.A. Clark cypress panicgrass    
PABR5 Panicum breve A.S. Hitchc. & Chase   0/1
DIDID Dichanthelium dichotomum (L.) Gould var. dichotomum cypress panicgrass    
PAAN10 Panicum annulum Ashe   0/2
PABA7 Panicum barbulatum Michx.   0/1
PACA20 Panicum caerulescens Hack. ex A.S. Hitchc.   0/1
PACL6 Panicum clutei Nash   0/1
PADI8 Panicum dichotomum L.   0/2
PALU4 Panicum lucidum Ashe   0/2
PAMA10 Panicum mattamuskeetense Ashe   0/2
PAMI6 Panicum microcarpon Muhl. ex Ell., non Muhl.   2/2
PANI4 Panicum nitidum Lam.   0/1
PANU7 Panicum nudicaule Vasey   0/1
PARO4 Panicum roanokense Ashe   0/1
PASP7 Panicum sphagnicola Nash   0/1
PAYA2 Panicum yadkinense Ashe   0/2
DIDIE Dichanthelium dichotomum (L.) Gould var. ensifolium (Baldw. ex Ell.) Gould & C.A. Clark cypress panicgrass    
PACH9 Panicum chamaelonche Trin.   0/1
PAEN3 Panicum ensifolium Baldw. ex Ell.   0/2
PAFL10 Panicum flavovirens Nash   0/1
PAVE4 Panicum vernale A.S. Hitchc. & Chase   0/1
DIDIG Dichanthelium dichotomum (L.) Gould var. glabrifolium (Nash) Gould & C.A. Clark cypress panicgrass    
PAGL6 Panicum glabrifolium Nash   0/1
DIDIT Dichanthelium dichotomum (L.) Gould var. tenue (Muhl.) Gould & C.A. Clark cypress panicgrass    
PAAL18 Panicum albomarginatum Nash   0/1
PACO23 Panicum concinnius A.S. Hitchc. & Chase   0/1
PATE17 Panicum tenue Muhl.   0/2
PATR8 Panicum trifolium Nash   0/1
DIER4 Dichanthelium erectifolium (Nash) Gould & C.A. Clark erectleaf panicgrass    
PAER4 Panicum erectifolium Nash   0/1
DILA8 Dichanthelium latifolium (L.) Gould & C.A. Clark broadleaf rosette grass 0/1
PALA23 Panicum latifolium L.   0/2
DILA9 Dichanthelium laxiflorum (Lam.) Gould openflower rosette grass 1/0
PALA15 Panicum laxiflorum Lam.   0/2
PAXA3 Panicum xalapense Kunth   0/1
DILE2 Dichanthelium leibergii (Vasey) Freckmann Leiberg's panicum    
PALE7 Panicum leibergii (Vasey) Scribn.   0/2
DILE4 Dichanthelium leucothrix (Nash) Freckmann rough panicgrass    
PALE12 Panicum leucothrix Nash   0/2
DILI2 Dichanthelium linearifolium (Scribn. ex Nash) Gould slimleaf panicgrass    
PALI9 Panicum linearifolium Scribn. ex Nash   0/2
PAPE10 Panicum perlongum Nash   0/2
PAWE5 Panicum werneri Scribn.   0/2
DILO4 Dichanthelium longiligulatum (Nash) Freckmann coastal plain panicgrass    
PALO9 Panicum longiligulatum Nash   2/1
DIMA5 Dichanthelium malacophyllum (Nash) Gould softleaf rosette grass    
PAMA11 Panicum malacophyllum Nash   0/2
DIME2 Dichanthelium meridionale (Ashe) Freckmann matting rosette grass    
PAAL13 Panicum albemarlense Ashe   0/1
PAME7 Panicum meridionale Ashe   0/2
DINO Dichanthelium nodatum (A.S. Hitchc. & Chase) Gould Sarita rosette grass    
PANO3 Panicum nodatum A.S. Hitchc. & Chase   0/1
DIOLO Dichanthelium oligosanthes (J.A. Schultes) Gould var. oligosanthes Heller's rosette grass    
PAOL2 Panicum oligosanthes J.A. Schultes   0/2
DIOLS Dichanthelium oligosanthes (J.A. Schultes) Gould var. scribnerianum (Nash) Gould Scribner's rosette grass    
PAHE8 Panicum helleri Nash   0/1
PASC10 Panicum scoparium S. Wats. ex Nash, non Lam.   0/1
PASC5 Panicum scribnerianum Nash   0/2
DIOV Dichanthelium ovale (Ell.) Gould & C.A. Clark eggleaf rosette grass 1/1
DIOVA Dichanthelium ovale (Ell.) Gould & C.A. Clark var. addisonii (Nash) Gould & C.A. Clark Addison's rosette grass    
PAAD5 Panicum addisonii Nash   0/2
PACO20 Panicum commonsianum Ashe   0/2
PAMU7 Panicum mundum Fern.   0/1
PAOW Panicum owenae Bickn.   0/1
PAWI4 Panicum wilmingtonense Ashe   0/1
DIOVO Dichanthelium ovale (Ell.) Gould & C.A. Clark var. ovale eggleaf rosette grass    
PAMA12 Panicum malacon Nash   0/1
PAOV4 Panicum ovale Ell.   0/1
DIPE4 Dichanthelium pedicellatum (Vasey) Gould cedar rosette grass    
PAPE7 Panicum pedicellatum Vasey   0/1
DIRA Dichanthelium ravenelii (Scribn. & Merr.) Gould Ravenel's rosette grass    
PARA13 Panicum ravenelii Scribn. & Merr.   0/2
DISAP Dichanthelium sabulorum (Lam.) Gould & C.A. Clark var. patulum (Scribn. & Merr.) Gould & C.A. Clark hemlock rosette grass    
PALA24 Panicum lancearium Trin.   0/1
PANA2 Panicum nashianum Scribn.   0/1
PAPA5 Panicum patentifolium Nash   0/1
PAPA26 Panicum patulum (Scribn. & Merr.) A.S. Hitchc.   0/1
PATS2 Panicum tsugetorum Nash   0/2
PAWE3 Panicum webberianum Nash   0/1
DISAT Dichanthelium sabulorum (Lam.) Gould & C.A. Clark var. thinium (A.S. Hitchc. & Chase) Gould & C.A. Clark hemlock rosette grass    
PACO29 Panicum columbianum Scribn.   0/2
PAOR6 Panicum oricola A.S. Hitchc. & Chase   0/1
PAPO7 Panicum portoricense Desv. ex Hamilton   0/1
DISC2 Dichanthelium scabriusculum (Ell.) Gould & C.A. Clark woolly rosette grass 1/1
PAAC7 Panicum aculeatum A.S. Hitchc. & Chase   0/2
PACR6 Panicum cryptanthum Ashe   0/1
PALA30 Panicum lanuginosum Bosc ex Spreng., non Ell.   0/1
PARE11 Panicum recognitum Fern.   0/1
PASC8 Panicum scabriusculum Ell.   1/2
DISC4 Dichanthelium ×scoparioides (Ashe) Mohlenbrock (pro sp.) [acuminatum × oligosanthes] Shasta panicgrass    
PASC18 Panicum scoparioides Ashe   0/1
PASH Panicum shastense Scribn. & Merr.   0/1
PAVIS2 Panicum villosissimum Nash var. scoparioides (Ashe) Fern.   0/1
DISC3 Dichanthelium scoparium (Lam.) Gould velvet panicum 4/1
PASC9 Panicum scoparium Lam.   0/1
DISPI Dichanthelium sphaerocarpon (Ell.) Gould var. isophyllum (Scribn.) Gould & C.A. Clark roundseed panicgrass    
PAPO4 Panicum polyanthes J.A. Schultes   2/2
DISPS3 Dichanthelium sphaerocarpon (Ell.) Gould var. sphaerocarpon roundseed panicgrass    
PASP8 Panicum sphaerocarpon Ell.   1/2
DISP4 Dichanthelium spretum (J.A. Schultes) Freckmann Eaton's rosette grass    
PAOC2 Panicum octonodum Sm.   0/1
PAPA23 Panicum paucipilum Nash   0/1
PASP9 Panicum spretum J.A. Schultes   0/2
DISTG Dichanthelium strigosum (Muhl. ex Ell.) Freckmann var. glabrescens (Griseb.) Freckmann roughhair rosette grass    
PAPO8 Panicum polycaulon Nash   0/1
DISTL Dichanthelium strigosum (Muhl. ex Ell.) Freckmann var. leucoblepharis (Trin.) Freckmann roughhair rosette grass    
PACI9 Panicum ciliatum Ell.   0/2
DISTS Dichanthelium strigosum (Muhl. ex Ell.) Freckmann var. strigosum roughhair rosette grass    
PAST13 Panicum strigosum Muhl. ex Ell.   0/2
DIVIP Dichanthelium villosissimum (Nash) Freckmann var. praecocius (A.S. Hitchc. & Chase) Freckmann whitehair rosette grass    
PAPR11 Panicum praecocius A.S. Hitchc. & Chase   0/2
DIVIV Dichanthelium villosissimum (Nash) Freckmann var. villosissimum whitehair rosette grass    
PAPS4 Panicum pseudopubescens Nash   0/1
PAVI8 Panicum villosissimum Nash   0/2
DIWI5 Dichanthelium wilcoxianum (Vasey) Freckmann fall rosette grass    
PAWI5 Panicum wilcoxianum Vasey   0/2
DIWR3 Dichanthelium wrightianum (Scribn.) Freckmann Wright's rosette grass    
PAWR7 Panicum wrightianum Scribn.   0/1
DIXA Dichanthelium xanthophysum (Gray) Freckmann slender rosette grass    
PAXA4 Panicum xanthophysum Gray   0/2
DIAN Dichanthium annulatum (Forsk.) Stapf Kleberg's bluestem 1/0
ANAN12 Andropogon annulatus Forssk.   1/0
DIAR5 Dichanthium aristatum (Poir.) C.E. Hubbard Angleton bluestem 2/0
DISE5 Dichanthium sericeum (R. Br.) A. Camus silky bluestem 2/0
DICA14 Dichelostemma capitatum (Benth.) Wood bluedicks 2/0
DICAC5 Dichelostemma capitatum (Benth.) Wood ssp. capitatum bluedicks 4/0
BRCA11 Brodiaea capitata Benth.   1/0
BRPU8 Brodiaea pulchella (Salisb.) Greene   1/0
DIPU3 Dichelostemma pulchellum (Salisb.) Heller   2/0
DICAP Dichelostemma capitatum (Benth.) Wood ssp. pauciflorum (Torr.) G. Keator bluedicks    
BRPUP2 Brodiaea pulchella (Salisb.) Greene var. pauciflora (Torr.) Morton   1/0
DICO19 Dichelostemma congestum (Sm.) Kunth ookow 1/0
BRCO2 Brodiaea congesta Sm.   1/0
DIID Dichelostemma ida-maia (Wood) Greene firecracker flower 3/0
BRID Brodiaea ida-maia (Wood) Greene   1/0
DIMU5 Dichelostemma multiflorum (Benth.) Heller roundtooth snakelily 3/0
BRMU3 Brodiaea multiflora Benth.   1/0
DIVE6 Dichelostemma ×venustum (Greene) Hoover (pro sp.) [congestum × ida-maia] 1/0
DIVO Dichelostemma volubile (Kellogg) Heller twining snakelily 3/0
DIPE7 Dichodontium pellucidum (Hedw.) Schimp. dichodontium moss 8/0
DICA3 Dichondra carolinensis Michx. Carolina ponysfoot 1/1
DIOC2 Dichondra occidentalis House western ponysfoot 2/0
DICI2 Dichrostachys cinerea (L.) Wight & Arn. aroma 2/0
DIAN8 Dicksonia antarctica Labill. Australian treefern 2/0
DISQ2 Dicksonia squarrosa (G. Forst.) Sw. hard treefern 2/0
DIBR2 Dicliptera brachiata (Pursh) Spreng. branched foldwing 1/1
DIBR6 Diapedium brachiatum (Pursh) Kuntze   0/1
DICE70 Dicranella cerviculata (Hedw.) Schimp. dicranella moss 2/0
DIHE70 Dicranella heteromalla (Hedw.) Schimp. dicranella moss 4/0
DIHO4 Dicranella howei Ren. & Card. Howe's dicranella moss 3/0
DIPA20 Dicranella palustris (Dicks.) Crundw. ex Warb. dicranella moss 3/0
DISC8 Dicranella schreberiana (Hedw.) Hilf. ex Crum & Anderson Schreber's dicranella moss 1/0
DISU70 Dicranella subulata (Hedw.) Schimp. dicranella moss 2/0
DIVA7 Dicranella varia (Hedw.) Schimp. dicranella moss 2/0
DIDE6 Dicranodontium denudatum (Brid.) Britt. in Williams denuded dicranodontium moss 6/0
DIEM Dicranopteris emarginata (T. Moore) W.J. Robins. uluhe 3/0
DILI Dicranopteris linearis (Burm.) Underwood Old World forkedfern 1/0
DICI5 Dicranoweisia cirrata (Hedw.) Lindb. ex Milde dicranoweisia moss 4/0
DICR71 Dicranoweisia crispula (Hedw.) Lindb. ex Milde dicranoweisia moss 5/0
DIAC70 Dicranum acutifolium (Lindb. & Arnell) C. Jens. ex Weinm. acuteleaf dicranum moss 2/0
DIAN70 Dicranum angustum Lindb. dicranum moss 1/0
DILA20 Dicranum laevidens Williams   2/0
DIBO70 Dicranum bonjeanii De Not. in Lisa Bonjean's dicranum moss 2/0
DIBR8 Dicranum brevifolium (Lindb.) Lindb. shortleaf dicranum moss 4/0
DIEL70 Dicranum elongatum Schleich. ex Schwaegr. elongate dicranum moss 2/0
DIFL6 Dicranum flagellare Hedw. dicranum moss 1/0
DIFR70 Dicranum fragilifolium Lindb. fragile leaf dicranum moss 1/0
DIFU3 Dicranum fulvum Hook. dicranum moss 6/0
DIFU5 Dicranum fuscescens Turn. dicranum moss 6/0
DIGR71 Dicranum groenlandicum Brid. Greenland dicranum moss 2/0
DILE6 Dicranum leioneuron Kindb. dicranum moss 2/0
DIMA18 Dicranum majus Sm. dicranum moss 2/0
DIMO6 Dicranum montanum Hedw. montane dicranum moss 5/0
DIMU70 Dicranum muehlenbeckii Bruch & Schimp. in B.S.G. Muehlenbeck's dicranum moss 3/0
DION Dicranum ontariense Peters. Ontario dicranum moss    
DIDR3 Dicranum drummondii auct. Amer.   3/0
DIPO70 Dicranum polysetum Sw. dicranum moss 4/0
DISC71 Dicranum scoparium Hedw. dicranum moss 5/0
DISP7 Dicranum spadiceum Zett. dicranum moss 7/0
DISP8 Dicranum spurium Hedw. dicranum moss 1/0
DITA Dicranum tauricum Sapeh. dicranum moss 7/0
DIUN8 Dicranum undulatum Brid. undulate dicranum moss    
DIBE4 Dicranum bergeri Bland. in Sturm   3/0
DIVI12 Dicranum viride (Sull. & Lesq. in Sull.) Lindb. dicranum moss 5/0
DIDI Didiplis diandra (Nutt. ex DC.) Wood waterpurslane 1/2
DIFA7 Didymodon fallax (Hedw.) Zand. didymodon moss 6/0
DIRI6 Didymodon rigidulus Hedw. rigid didymodon moss 5/0
DIRIG Didymodon rigidulus Hedw. var. gracilis (Schleich. ex Hook. & Grev.) Zand. rigid didymodon moss    
DIAC6 Didymodon acutus (Brid.) Saito   5/0
DITO4 Didymodon tophaceus (Brid.) Lisa didymodon moss 6/0
DIVI13 Didymodon vinealis (Brid.) Zand. didymodon moss 3/0
DIVIF2 Didymodon vinealis (Brid.) Zand. var. flaccidus (Bruch & Schimp. in Schimp.) Zand. didymodon moss    
DIIN8 Didymodon insulanus (De Not.) M. O. Hill   6/0
DIVIL2 Didymodon vinealis (Brid.) Zand. var. luridus (Hornsch. in Spreng.) Zand. didymodon moss    
DILU4 Didymodon luridus Hornsch. in Spreng.   4/0
DIFA2 Diectomis fastigiata (Sw.) Beauv. foldedleaf grass 1/0
DISE7 Dieffenbachia seguine (Jacq.) Schott dumbcane 1/0
DILO Diervilla lonicera P. Mill. northern bush honeysuckle    
DIDI12 Diervilla diervilla (L.) MacM.   0/1
DIRI Diervilla rivularis Gattinger mountain bush honeysuckle 2/0
DIETE Dietes Salisb. ex Klatt dietes 2/0
DIGR13 Dietes grandiflora N.E. Br. wild iris 4/0
DIIR Dietes irioides (L.) Sweet ex Klatt 2/0
DIGIT Digitalis L. foxglove 2/0
DIGR4 Digitalis grandiflora P. Mill. yellow foxglove 1/0
DILU Digitalis lutea L. straw foxglove 2/0
DIPU Digitalis purpurea L. purple foxglove 9/1
DIPUP2 Digitalis purpurea L. ssp. purpurea purple foxglove 1/0
DIAR7 Digitaria arenicola (Swallen) Beetle sand crabgrass    
LEAR8 Leptoloma arenicola Swallen   0/1
DIBI Digitaria bicornis (Lam.) Roemer & J.A. Schultes ex Loud. Asian crabgrass 1/0
DICA8 Digitaria californica (Benth.) Henr. Arizona cottontop 2/0
TRCA17 Trichachne californica (Benth.) Chase   0/1
DICI Digitaria ciliaris (Retz.) Koel. southern crabgrass 3/0
PACI5 Panicum ciliare Retz.   1/0
SYMA3 Syntherisma marginata (Link) Nash   0/1
DICO6 Digitaria cognata (J.A. Schultes) Pilger fall witchgrass    
LECO Leptoloma cognatum (J.A. Schultes) Chase   0/2
DIDO Digitaria dolichophylla Henr. Caribbean crabgrass 0/1
DIER Digitaria eriantha Steud. digitgrass 1/0
DIPE Digitaria pentzii Stent   2/0
DIEX4 Digitaria exilis (Kippist) Stapf [excluded] fonio 1/0
DIFI Digitaria filiformis (L.) Koel. slender crabgrass 0/1
DILA13 Digitaria laeviglumis Fern.   0/1
SYFI2 Syntherisma filiformis (L.) Nash   0/1
DIFL Digitaria floridana A.S. Hitchc. Florida crabgrass 0/1
DIFU Digitaria fuscescens (J. Presl) Henr. yellow crabgrass 1/0
DIGR Digitaria gracillima (Scribn.) Fern. longleaf crabgrass 0/1
DIHI3 Digitaria hitchcockii (Chase) Stuckert shortleaf crabgrass    
TRHI7 Trichachne hitchcockii (Chase) Chase   0/1
DIHO Digitaria horizontalis Willd. Jamaican crabgrass 2/1
DIIB2 Digitaria iburua Stapf [excluded] black fonio 1/0
DIIN2 Digitaria insularis (L.) Mez ex Ekman sourgrass    
TRIN8 Trichachne insularis (L.) Nees   0/1
DIIS Digitaria ischaemum (Schreb.) Schreb. ex Muhl. smooth crabgrass 3/1
SYIS Syntherisma ischaemum (Schreb.) Nash   0/1
DILO2 Digitaria longiflora (Retz.) Pers. Indian crabgrass 0/1
DIMA16 Digitaria macroglossa Henr. [excluded] 2/0
DIMI3 Digitaria milanjiana (Rendle) Stapf Madagascar crabgrass 2/0
DINA2 Digitaria natalensis Stent [excluded] Natal crabgrass 2/0
DIPA6 Digitaria patens (Swallen) Henr. Texas cottontop    
TRPA14 Trichachne patens Swallen   0/1
DIPA5 Digitaria pauciflora A.S. Hitchc. twospike crabgrass 0/1
DISA Digitaria sanguinalis (L.) Scop. hairy crabgrass 3/2
SYSA2 Syntherisma sanguinalis (L.) Dulac   0/1
DISE16 Digitaria seriata Stapf [excluded] crabgrass 2/0
DIPO5 Digitaria polevansii Stent   2/0
DISE3 Digitaria serotina (Walt.) Michx. dwarf crabgrass 0/1
SYSE Syntherisma serotina Walt.   0/1
DISE17 Digitaria setivalva Stent crabgrass 2/0
DISI Digitaria simpsonii (Vasey) Fern. Isle-of-Pines crabgrass 0/1
DISM4 Digitaria smutsii Stent [excluded] 1/0
DITE Digitaria texana A.S. Hitchc. Texas crabgrass 0/1
DIAL Digitaria albicoma Swallen   0/1
DIRU Digitaria runyonii A.S. Hitchc.   0/1
DISU Digitaria subcalva A.S. Hitchc.   0/1
DIVA5 Digitaria valida Stent [excluded] 2/0
DIVI Digitaria villosa (Walt.) Pers. shaggy crabgrass 0/1
SYVI2 Syntherisma villosa Walt.   0/1
DIVI2 Digitaria violascens Link violet crabgrass 0/1
DIIN6 Dillenia indica L. chulta 2/0
DIMO5 Dilomilis montana (Sw.) Summerhayes parrotbeak orchid 3/0
DIOR5 Dimeria ornithopoda Trin. 2/0
DIWI2 Dimorphocarpa wislizeni (Engelm.) Rollins touristplant 11/0
DIWI6 Dithyrea wislizeni Engelm.   5/0
DIMOR3 Dimorphotheca Moench Cape marigold 1/0
DIPL4 Dimorphotheca pluvialis (L.) Moench weather prophet    
DIAN9 Dimorphotheca annua Less.   1/0
DISI4 Dimorphotheca sinuata DC. glandular Cape marigold 1/0
DIRE7 Dinebra retroflexa (Vahl) Panzer viper grass 2/0
DIME7 Dioclea megacarpa Rolfe 4/0
DITE2 Diodia teres Walt. poorjoe 5/1
DIVI3 Diodia virginiana L. Virginia buttonweed 8/2
DIMU4 Dionaea muscipula Ellis Venus flytrap 11/0
DIOSC Dioscorea L. yam 1/0
DIBU Dioscorea bulbifera L. air yam 1/0
DIEL2 Dioscorea elephantipes (L'Her.) Engl. hottentot-bread 3/0
DIOP Dioscorea oppositifolia L. Chinese yam 1/0
DIQU Dioscorea quaternata J.F. Gmel. fourleaf yam 2/1
DIVI4 Dioscorea villosa L. wild yam 8/1
DIOSP Diospyros L. diospyros 1/1
DIBL3 Diospyros blancoi A. DC. mabolo 6/0
DIDI15 Diospyros digyna Jacq. black sapote 3/0
DIEB2 Diospyros ebenum Koenig ex Retz. ebony 1/0
DIKA2 Diospyros kaki L. f. japanese persimmon 1/0
DILY4 Diospyros lyciodes Desf. red star apple 1/0
DIME8 Diospyros mespiliformis Hochst. ex A. DC. ebony diospyros 3/0
DIRE6 Diospyros revoluta Poir. black apple 2/0
DISA10 Diospyros sandwicensis (A. DC.) Fosberg lama 3/0
DIVI5 Diospyros virginiana L. common persimmon 16/2
DICY2 Diphylleia cymosa Michx. American umbrellaleaf 1/1
DIFO3 Diphyscium foliosum (Hedw.) Mohr diphyscium moss 3/0
DIAU Diplacus aurantiacus (W. Curtis) Jepson orange bush monkeyflower 1/0
DIAUA Diplacus aurantiacus (W. Curtis) Jepson ssp. aurantiacus orange bush monkeyflower 2/0
MIAU Mimulus aurantiacus W. Curtis   5/0
DICL2 Diplacus clevelandii (Brandeg.) Greene Cleveland's bush monkeyflower 3/0
MICL2 Mimulus clevelandii Brandeg.   1/0
DIGR5 Diplacus grandiflorus (Lindl.) Groenl. largeflower bush monkeyflower 2/0
MIBI5 Mimulus bifidus Pennell   2/0
DILO6 Diplacus longiflorus Nutt. southern bush monkeyflower 3/0
MILO Mimulus longiflorus (Nutt.) A.L. Grant   4/0
DIPA10 Diplacus parviflorus Greene island bush monkeyflower 3/0
DIPU4 Diplacus puniceus Nutt. red bush monkeyflower    
MIPU3 Mimulus puniceus (Nutt.) Steud.   4/0
DIPY Diplazium pycnocarpon (Spreng.) Broun glade fern    
ASPY5 Asplenium pycnocarpon Spreng.   0/1
ATPY Athyrium pycnocarpon (Spreng.) Tidestrom   1/0
DIAL11 Diplophyllum albicans (L.) Dumort. 2/0
DIOB5 Diplophyllum obtusifolium (Hook.) Dumort. 3/0
DITA3 Diplophyllum taxifolium (Wahlenb.) Dumort. 4/0
DIMU7 Diploschistes muscorum (Scop.) R. Sant. crater lichen 1/0
DIMU2 Diplotaxis muralis (L.) DC. annual wallrocket 0/1
DITE4 Diplotaxis tenuifolia (L.) DC. perennial wallrocket 0/1
DIFU2 Dipsacus fullonum L. Fuller's teasel 3/1
DIFUS2 Dipsacus fullonum L. ssp. sylvestris (Huds.) Clapham   2/0
DISY Dipsacus sylvestris Huds.   3/1
DIOC3 Dirca occidentalis Gray western leatherwood 2/0
DIPA9 Dirca palustris L. eastern leatherwood 3/1
DICA5 Dissanthelium californicum (Nutt.) Benth. Catalina grass 0/1
DIBI2 Dissochondrus biflorus (Hbd.) Kuntze ex Hack. Hawai'i false bristlegrass 2/0
DIRO2 Dissotis rotundifolia (Sm.) Triana pinklady 1/0
DICA29 Distichium capillaceum (Hedw.) Bruch & Schimp. in B.S.G. distichium moss 4/0
DIIN70 Distichium inclinatum (Hedw.) Bruch & Schimp. in B.S.G. incline distichium moss 2/0
DISP Distichlis spicata (L.) Greene saltgrass 6/2
DIST3 Distichlis stricta (Torr.) Rydb.   1/1
DIBU3 Distictis buccinatoria (DC.) A. H. Gentry blood-trumpet    
PHBU4 Phaedranthus buccinatorum Miers   1/0
DILA10 Distictis lactiflora (Vahl) DC. liana fragante 2/0
DICA7 Dithyrea californica Harvey California shieldpod 3/0
DIFL70 Ditrichum flexicaule (Schwaegr.) Hampe ditrichum moss 3/0
DICR5 Ditrichum crispatissimum (C. Müll.) Par.   2/0
DIHE3 Ditrichum heteromallum (Hedw.) Britt. ditrichum moss 1/0
DILI10 Ditrichum lineare (Sw.) Lindb. ditrichum moss 3/0
DIPA22 Ditrichum pallidum (Hedw.) Hampe pale ditrichum moss 4/0
DIFR6 Ditrysinia fruticosa (Bartr.) Govaerts & Frodin Gulf Sebastian-bush    
SEFR Sebastiania fruticosa (Bartr.) Fern.   1/1
DOLE Dodecahema leptoceras (Gray ex Benth.) Reveal & Hardham slenderhorn spineflower 11/0
DODEC Dodecatheon L. shootingstar 1/0
DOAL Dodecatheon alpinum (Gray) Greene alpine shootingstar 4/0
DOALM Dodecatheon alpinum (Gray) Greene ssp. majus H.J. Thompson alpine shootingstar 3/0
DOAM Dodecatheon amethystinum (Fassett) Fassett jeweled shootingstar 2/0
DOCL Dodecatheon clevelandii Greene padre's shootingstar 2/0
DOCLP Dodecatheon clevelandii Greene ssp. patulum (Greene) H.J. Thompson padre's shootingstar 4/0
DOCO Dodecatheon conjugens Greene Bonneville shootingstar 2/0
DOFR2 Dodecatheon frenchii (Vasey) Rydb. French's shootingstar 1/0
DOHE Dodecatheon hendersonii Gray mosquito bills 12/0
DOHEC Dodecatheon hendersonii Gray ssp. cruciatum (Greene) H.J. Thompson mosquito bills 4/0
DOJE Dodecatheon jeffreyi Van Houtte Sierrra shootingstar 10/0
DOME Dodecatheon meadia L. pride of Ohio 16/1
DOPU Dodecatheon pulchellum (Raf.) Merr. darkthroat shootingstar 14/1
DOPUC Dodecatheon pulchellum (Raf.) Merr. ssp. cusickii (Greene) Calder & Taylor Cusick's shootingstar 1/0
DOPU4 Dodecatheon puberulum (Nutt.) Piper   1/0
DOPUP2 Dodecatheon pulchellum (Raf.) Merr. ssp. pulchellum darkthroat shootingstar 4/0
DOPA Dodecatheon pauciflorum Greene   1/0
DORA2 Dodecatheon radicatum Greene   5/0
DORE Dodecatheon redolens (Hall) H.J. Thompson scented shootingstar 2/0
DOVI Dodonaea viscosa (L.) Jacq. Florida hopbush 2/0
DOIN2 Doellingeria infirma (Michx.) Greene cornel-leaf whitetop 0/1
ASIN2 Aster infirmus Michx.   2/0
DOHU2 Doellingeria humilis (Willd.) Britt.   0/1
DOUM2 Doellingeria umbellata (P. Mill.) Nees parasol whitetop 0/1
DOUMU Doellingeria umbellata (P. Mill.) Nees var. umbellata parasol whitetop    
ASUM Aster umbellatus P. Mill.   1/0
DOSP3 Dolichandrone spathacea (L.F.) K. Schum. 1/0
DOCO3 Dorstenia contrajerva L. tusilla 1/0
DOWNI Downingia Torr. calicoflower 1/0
DOBA Downingia bacigalupii Weiler Bach's calicoflower 5/0
DOBI Downingia bicornuta Gray doublehorn calicoflower 1/1
DOBIP Downingia bicornuta Gray var. picta Hoover doublehorn calicoflower 1/0
DOCO2 Downingia concolor Greene maroonspot calicoflower 2/0
DOCU Downingia cuspidata (Greene) Greene ex Jepson toothed calicoflower 8/0
DOIN Downingia insignis Greene harlequin calicoflower 1/0
DOLA2 Downingia laeta (Greene) Greene Great Basin calicoflower 0/1
DOOR Downingia ornatissima Greene folded calicoflower 1/0
DOPU2 Downingia pulchella (Lindl.) Torr. flatface calicoflower 1/0
DOPU3 Downingia pusilla (G. Don) Torr. dwarf calicoflower 4/0
DOEM Doyerea emetocathartica Gros. coralfruit 4/0
DRAL4 Draba albertina Greene slender draba 3/0
DRAL2 Draba alpina L. alpine draba 0/1
DRAR Draba arabisans Michx. rock draba 0/1
DRAU Draba aurea Vahl ex Hornem. golden draba 2/1
DRBR Draba brachycarpa Nutt. ex Torr. & Gray shortpod draba 0/1
DRBR2 Draba breweri S. Wats. cushion draba 1/0
DRBRC Draba breweri S. Watson var. cana (Rydb.) Rollins cushion draba    
DRCA4 Draba cana Rydb.   3/0
DRST6 Draba stylaris J. Gay ex W.D.J. Koch   0/1
DRCU Draba cuneifolia Nutt. ex Torr. & Gray wedgeleaf draba 7/1
DRCUC3 Draba cusickii B.L. Robins. ex O.E. Schulz var. cusickii Cusick's draba 3/0
DRDE Draba densifolia Nutt. denseleaf draba 1/0
DRFL Draba fladnizensis Wulfen Austrian draba 0/1
DRGR2 Draba graminea Greene Rocky Mountain draba 4/0
DRIN Draba incana L. twisted draba 0/1
DRIN2 Draba incerta Payson Yellowstone draba 5/0
DRMO3 Draba mogollonica Greene Mogollon Mountain draba 1/0
DRNE Draba nemorosa L. woodland draba 0/1
DRNI Draba nivalis Lilj. yellow arctic draba 0/1
DRPA Draba paysonii J.F. Macbr. Payson's draba 1/0
DRPE2 Draba petrophila Greene Santa Rita Mountain draba 1/0
DRRA Draba ramosissima Desv. branched draba 0/1
DRRE2 Draba reptans (Lam.) Fern. Carolina draba 1/0
DRCA8 Draba caroliniana Walt.   0/1
DRSU Draba subalpina Goodman & C.L. Hitchc. subalpine draba 2/0
DRVE2 Draba verna L. spring draba 1/1
DRACA Dracaena L. dracaena 2/0
DRDR3 Dracaena draco (L.) L. dragontree 4/0
DRFR2 Dracaena fragrans (L.) Ker-Gawl. fragrant dracaena 1/0
DRST8 Dracaena steudneri Schweinf. ex Engl. bush nightfighter 1/0
DRSU11 Dracaena surculosa Lindl. gold dust dracaena 1/0
DRMO Dracocephalum moldavica L. Moldavian dragonhead    
MOMO Moldavica moldavica (L.) Britt.   0/1
DRPA2 Dracocephalum parviflorum Nutt. American dragonhead 3/0
MOPA4 Moldavica parviflora (Nutt.) Britt.   0/1
DRAM Dracopis amplexicaulis (Vahl) Cass. clasping coneflower 2/1
RUAM7 Rudbeckia amplexicaulis Vahl   1/0
DRVU Dracunculus vulgaris Schott common dracunculus 2/0
DRSY Draperia systyla (Gray) Torr. ex Gray violet draperia 2/0
DRAD2 Drepanocladus aduncus (Hedw.) Warnst. drepanocladus moss 3/0
DRSE3 Drepanocladus sendtneri (Schimp.) Warnst. Sendtner's drepanocladus moss 4/0
DRFL2 Drosanthemum floribundum (Haw.) Schwant. showy dewflower 1/0
MEFL3 Mesembryanthemum floribundum Haw.   1/0
DRAN Drosera anglica Huds. English sundew 2/0
DRLO3 Drosera longifolia L.   0/1
DRBR3 Drosera brevifolia Pursh dwarf sundew 4/0
DRAN3 Drosera annua E.L. Reed   1/0
DRCA2 Drosera capillaris Poir. pink sundew 5/0
DRFI Drosera filiformis Raf. threadleaf sundew 5/1
DRIN3 Drosera intermedia Hayne spoonleaf sundew 5/2
DRLI Drosera linearis Goldie slenderleaf sundew 0/1
DRRO Drosera rotundifolia L. roundleaf sundew 8/2
DRROR Drosera rotundifolia L. var. rotundifolia roundleaf sundew 2/0
DRDR Dryas drummondii Richards. ex Hook. Drummond's mountain-avens 1/1
DRIN4 Dryas integrifolia Vahl entireleaf mountain-avens 1/1
DROC Dryas octopetala L. eightpetal mountain-avens 2/1
DROCH Dryas octopetala L. ssp. hookeriana (Juz.) Hultén Hooker's mountain-avens    
DRHO2 Dryas hookeriana Juz.   3/0
DRCO2 Drymaria cordata (L.) Willd. ex J.A. Schultes whitesnow 1/0
DRLE3 Drymaria leptophylla (Cham. & Schlecht.) Fenzl ex Rohrb. canyon drymary    
DRTE2 Drymaria tenella Gray   4/0
DRPA3 Drymaria pachyphylla Woot. & Standl. thickleaf drymary 1/0
DRRU2 Dryopetalon runcinatum Gray rockmustard 2/0
DRAR3 Dryopteris arguta (Kaulfuss) Watt coastal woodfern 1/0
DRBO2 Dryopteris ×boottii (Tuckerman) Underwood (pro sp.) [cristata × intermedia] 0/1
DRCA11 Dryopteris carthusiana (Vill.) H.P. Fuchs spinulose woodfern 0/1
DRSP4 Dryopteris spinulosa (O.F. Muell.) Watt   1/1
DRCE Dryopteris celsa (Wm. Palmer) Knowlt., Palmer & Pollard ex Small log fern 2/0
DRCL Dryopteris clintoniana (D.C. Eat.) Dowell Clinton's woodfern 0/1
DRCR4 Dryopteris cristata (L.) Gray crested woodfern 0/2
DREX2 Dryopteris expansa (K. Presl) Fraser-Jenkins & Jermy spreading woodfern 1/0
DRDI2 Dryopteris dilatata auct. non (Hoffmann) Gray [misapplied]   0/1
DRFI2 Dryopteris filix-mas (L.) Schott male fern 2/1
DRFR Dryopteris fragrans (L.) Schott fragrant woodfern 0/1
DRGO Dryopteris goldiana (Hook. ex Goldie) Gray Goldie's woodfern 1/1
DRIN5 Dryopteris intermedia (Muhl. ex Willd.) Gray intermediate woodfern 2/1
DRMA4 Dryopteris marginalis (L.) Gray marginal woodfern 0/1
DRGL2 Drypetes glauca Vahl varital 1/0
DRPA9 Dryptodon patens (Hedw.) Brid. dryptodon moss 3/0
DUIN Duchesnea indica (Andr.) Focke Indian strawberry 4/1
DUDLE Dudleya Britt. & Rose dudleya 3/0
DUABB Dudleya abramsii Rose ssp. bettinae (Hoover) Bartel San Luis Obispo serpentine dudleya 2/0
DUAN2 Dudleya anomala (Davidson) Moran 1/0
DUBLB Dudleya blochmaniae (Eastw.) Moran ssp. blochmaniae Blochman's liveforever 2/0
DUCA4 Dudleya caespitosa (Haw.) Britt. & Rose sealettuce 5/0
DUCA3 Dudleya calcicola Bartel & Shevock limestone liveforever 4/0
DUCA2 Dudleya candelabrum Rose candleholder liveforever 3/0
DUCY Dudleya cymosa (Lem.) Britt. & Rose canyon liveforever 2/0
DUDE2 Dudleya densiflora (Rose) Moran San Gabriel Mountains liveforever 2/0
DUED Dudleya edulis (Nutt.) Moran fingertips 2/0
DUFA Dudleya farinosa (Lindl.) Britt. & Rose powdery liveforever 7/0
DUGR Dudleya greenei Rose Greene's liveforever 7/0
DULA Dudleya lanceolata (Nutt.) Britt. & Rose lanceleaf liveforever 1/0
DUPA2 Dudleya palmeri (S. Wats.) Britt. & Rose Palmer's liveforever 3/0
DUPU Dudleya pulverulenta (Nutt.) Britt. & Rose chalk dudleya 1/0
DUPUP Dudleya pulverulenta (Nutt.) Britt. & Rose ssp. pulverulenta chalk dudleya 4/0
DUSA Dudleya saxosa (M.E. Jones) Britt. & Rose Panamint liveforever 2/0
DUSE Dudleya setchellii (Jepson) Britt. & Rose Santa Clara Valley liveforever    
DUCYS Dudleya cymosa (Lem.) Britt. & Rose ssp. setchellii (Jepson) Moran   1/0
DUTR Dudleya traskiae (Rose) Moran Santa Barbara Island liveforever 3/0
DUVA Dudleya variegata (S. Wats.) Moran variegated liveforever 1/0
DUVIH Dudleya virens (Rose) Moran ssp. hassei (Rose) Moran bright green dudleya 3/0
DUAR3 Dulichium arundinaceum (L.) Britt. threeway sedge 1/2
DUFI Dupontia fisheri R. Br. Fisher's tundragrass 0/1
DUER Duranta erecta L. golden dewdrops 1/0
DUZI Durio zibethinus Murray durian 6/0
DYLI Dyschoriste linearis (Torr. & Gray) Kuntze polkadots 1/0
DYOB Dyschoriste oblongifolia (Michx.) Kuntze oblongleaf snakeherb 0/1
DYSCD Dyschoriste schiedeana (Nees) Kuntze var. decumbens (Gray) Henrickson spreading snakeherb    
DYDE Dyschoriste decumbens (Gray) Kuntze   2/0
DYPA Dyssodia papposa (Vent.) A.S. Hitchc. fetid marigold    
BOPA8 Boebera papposa (Vent.) Rydb. ex Britt.   0/1
EANI Eatonella nivea (D.C. Eat.) Gray white false tickhead 1/0
EBEB Ebenopsis ebano (Berl.) Barneby & Grimes Texas ebony 2/0
PIFL3 Pithecellobium flexicaule (Benth.) Coult.   1/1
ECEL Ecballium elaterium (L.) A. Rich. squirting cucumber 2/0
ECBR2 Eccremocactus bradei Britton & Rose 1/0
ECST Echeveria strictiflora Gray desert savior 1/0
ECAN2 Echinacea angustifolia DC. blacksamson echinacea 3/1
ECLA Echinacea laevigata (C.L. Boynt. & Beadle) Blake smooth purple coneflower 5/0
ECPA Echinacea pallida (Nutt.) Nutt. pale purple coneflower 4/1
ECPA2 Echinacea paradoxa (J.B.S. Norton) Britt. Bush's purple coneflower 2/1
ECPU Echinacea purpurea (L.) Moench eastern purple coneflower 8/1
ECSA Echinacea sanguinea Nutt. sanguin purple coneflower 1/0
ECSI Echinacea simulata R.L. McGregor wavyleaf purple coneflower 2/0
ECTE3 Echinacea tennesseensis (Beadle) Small Tennessee purple coneflower 4/0
ECHIN2 Echinocactus Link & Otto echinocactus 3/0
ECHO Echinocactus horizonthalonius Lem. devilshead 4/0
ECPO2 Echinocactus polycephalus Engelm. & Bigelow cottontop cactus 2/0
ECPOP Echinocactus polycephalus Engelm. & Bigelow var. polycephalus cottontop cactus 2/0
ECTE Echinocactus texensis Hopffer horse crippler 4/0
ECHIN3 Echinocereus Engelm. hedgehog cactus 3/0
ECCH2 Echinocereus chisoensis W.T. Marsh. Chisos Mountain hedgehog cactus 2/0
ECREC Echinocereus reichenbachii (Terscheck ex Walp.) Haage f. var. chisoensis (W.T. Marsh.) L. Benson   3/0
ECCO5 Echinocereus coccineus Engelm. scarlet hedgehog cactus 3/0
ECCOA Echinocereus coccineus Engelm. var. arizonicus (Rose ex Orcutt) Ferguson Arizona hedgehog cactus 6/0
ECTRA Echinocereus triglochidiatus Engelm. var. arizonicus (Rose ex Orcutt) L. Benson   1/0
ECCOC Echinocereus coccineus Engelm. var. coccineus scarlet hedgehog cactus 1/0
ECCOC2 Echinocereus coccineus Engelm. var. conoideus (Engelm.) Weniger   1/0
ECTRI Echinocereus triglochidiatus Engelm. var. inermis (K. Schum.) Arp   5/0
ECTRM Echinocereus triglochidiatus Engelm. var. melanacanthus (Engelm.) L. Benson   7/0
ECCOG Echinocereus coccineus Engelm. var. gurneyi (L. Benson) Heil & Brack Gurney's hedgehog cactus    
ECTRG2 Echinocereus triglochidiatus Engelm. var. gurneyi L. Benson   12/0
ECDA Echinocereus dasyacanthus Engelm. spiny hedgehog cactus    
ECPEN Echinocereus pectinatus (Scheidw.) Engelm. var. neomexicanus (Coult.) L. Benson   5/0
ECEN Echinocereus engelmannii (Parry ex Engelm.) Lem. Engelmann's hedgehog cactus 5/0
ECENC Echinocereus engelmannii (Parry ex Engelm.) Lem. var. chrysocentrus (Engelm. & Bigelow) Rumpl. Engelmann's hedgehog cactus 1/0
ECENM Echinocereus engelmannii (Parry ex Engelm.) Lem. var. munzii (Parish) Pierce & Fosberg Munz's hedgehog cactus 2/0
ECENV Echinocereus engelmannii (Parry ex Engelm.) Lem. var. variegatus (Engelm. & Bigelow) Rümpl. Engelmann's hedgehog cactus 4/0
ECEN2 Echinocereus enneacanthus Engelm. pitaya 10/0
ECFE Echinocereus fendleri (Engelm.) F. Seitz pinkflower hedgehog cactus 3/0
ECFEF3 Echinocereus fendleri (Engelm.) F. Seitz ssp. fendleri pinkflower hedgehog cactus    
ECKU2 Echinocereus kuenzleri Castetter, Pierce & Schwerin   4/0
ECFER4 Echinocereus fendleri (Engelm.) F. Seitz ssp. rectispinus (Peebles) N.P. Taylor pinkflower hedgehog cactus    
ECFER Echinocereus fendleri (Engelm.) F. Seitz var. rectispinus (Peebles) L. Benson   1/0
ECMO Echinocereus mojavensis (Engelm. & Bigelow) Rümpl. Mojave kingcup cactus 2/0
ECTRM2 Echinocereus triglochidiatus Engelm. var. mojavensis (Engelm. & Bigelow) L. Benson   4/0
ECNI Echinocereus nicholii (L. Benson) Parfitt Nichol's hedgehog cactus    
ECENN Echinocereus engelmannii (Parry ex Engelm.) Lem. var. nicholii L. Benson   11/0
ECRE Echinocereus reichenbachii (Terscheck ex Walp.) Haage f. lace hedgehog cactus 3/0
ECREB2 Echinocereus reichenbachii (Terscheck ex Walp.) Haage f. ssp. baileyi (Rose) N.P. Taylor Bailey's hedgehog cactus 1/0
ECREA2 Echinocereus reichenbachii (Terscheck ex Walp.) Haage f. var. albispinus (Lahman) L. Benson   1/0
ECREF2 Echinocereus reichenbachii (Terscheck ex Walp.) Haage f. ssp. fitchii (Britt. & Rose) N.P. Taylor Fitch's hedgehog cactus    
ECREF Echinocereus reichenbachii (Terscheck ex Walp.) Haage f. var. fitchii (Britt. & Rose) L. Benson   3/0
ECREP2 Echinocereus reichenbachii (Terscheck ex Walp.) Haage f. ssp. perbellus (Britt. & Rose) N.P. Taylor lace hedgehog cactus    
ECREP Echinocereus reichenbachii (Terscheck ex Walp.) Haage f. var. perbellus (Britt. & Rose) L. Benson   5/0
ECRER4 Echinocereus reichenbachii (Terscheck ex Walp.) Haage f. ssp. reichenbachii lace hedgehog cactus    
ECCA2 Echinocereus caespitosus (Engelm.) Engelm.   0/1
ECST2 Echinocereus stramineus (Engelm.) F. Seitz strawberry hedgehog cactus    
ECENS Echinocereus enneacanthus Engelm. var. stramineus (Engelm.) L. Benson   7/0
ECTR Echinocereus triglochidiatus Engelm. kingcup cactus 8/0
ECVI2 Echinocereus viridiflorus Engelm. nylon hedgehog cactus 3/1
ECVID Echinocereus viridiflorus Engelm. var. davisii (A.D. Houghton) W.T. Marsh. Davis' hedgehog cactus 3/0
ECVIV Echinocereus viridiflorus Engelm. var. viridiflorus nylon hedgehog cactus    
ECCHN Echinocereus chloranthus (Engelm.) Haage f. var. neocapillus Weniger   6/0
ECHIN4 Echinochloa Beauv. cockspur grass 1/0
ECCO2 Echinochloa colona (L.) Link jungle rice 1/3
ECCR Echinochloa crus-galli (L.) Beauv. barnyardgrass 2/1
ECCR2 Echinochloa crus-pavonis (Kunth) J.A. Schultes gulf cockspur grass 0/1
ECCRM Echinochloa crus-pavonis (Kunth) J.A. Schultes var. macera (Wieg.) Gould gulf cockspur grass    
ECCRZ2 Echinochloa crus-galli (L.) Beauv. var. zelayensis (Kunth) A.S. Hitchc.   0/1
ECFR Echinochloa frumentacea Link billion-dollar grass    
ECCRF Echinochloa crus-galli (L.) Beauv. var. frumentacea (Link) W. Wight   0/1
ECHA3 Echinochloa haploclada Stapf in Prain cockspur 1/0
ECMU2 Echinochloa muricata (Beauv.) Fern. rough barnyardgrass 3/1
ECMUM Echinochloa muricata (Beauv.) Fern. var. microstachya Wieg. rough barnyardgrass    
ECCRM2 Echinochloa crus-galli (L.) Beauv. var. mitis (Pursh) Peterm.   0/1
ECPA5 Echinochloa paludigena Wieg. Florida cockspur grass 0/1
ECPO3 Echinochloa polystachya (Kunth) A.S. Hitchc. creeping river grass 0/1
ECPY2 Echinochloa pyramidalis (Lam.) Hitchc. & Chase antelope grass 2/0
ECST4 Echinochloa stagnina (Retz.) Beauv. hippo grass 2/0
ECWA Echinochloa walteri (Pursh) Heller coast cockspur grass 2/3
ECLO Echinocystis lobata (Michx.) Torr. & Gray wild cucumber 2/0
MILO4 Micrampelis lobata (Michx.) Greene   0/1
ECBE2 Echinodorus berteroi (Spreng.) Fassett upright burrhead 4/0
ECRO Echinodorus rostratus (Nutt.) Engelm. ex Gray   1/0
ECCO3 Echinodorus cordifolius (L.) Griseb. creeping burrhead 2/1
ECRA2 Echinodorus radicans (Nutt.) Engelm.   0/1
ECTE2 Echinodorus tenellus (Mart.) Buch. mudbabies    
HEPA21 Helianthium parvulum (Engelm.) Britt.   0/1
ECIN2 Echinomastus intertextus (Engelm.) Britt. & Rose white fishhook cactus    
NEIN2 Neolloydia intertexta (Engelm.) L. Benson   5/0
ECJO3 Echinomastus johnsonii (Parry ex Engelm.) E.M. Baxter Johnson's fishhook cactus    
SCJO Sclerocactus johnsonii (Parry ex Engelm.) N.P. Taylor   2/0
ECMA2 Echinomastus mariposensis Hester Lloyd's fishhook cactus    
NEMA2 Neolloydia mariposensis (Hester) L. Benson   1/0
ECHIN8 Echinops L. globethistle 2/0
ECHIN11 Echinopsis Zuccagni echinopsis 5/0
ECAT2 Echinopsis atacamensis Phil. cardón    
CEAT2 Cereus atacamensis Phil.   3/0
ECCA6 Echinopsis candicans (Gillies ex Salm-Dyck) F. A. C. Weber ex D. R. Hunt    
TRCA32 Trichocereus candicans (Salm-Dyck) Britton & Rose   1/0
ECPA8 Echinopsis pasacana (F.A.C.Weber) Friedrich & G.D.Rowley    
TRPA27 Trichocereus pasacanus (F.A.C. Weber) Friedrich & G.D. Rowley   1/0
ECRO3 Echinopsis rojasii Cardenas 1/0
ECTU4 Echinopsis turbinata Zuccagni 6/0
ECHIU Echium L. viper's bugloss 3/0
ECCA5 Echium candicans L. f. pride of Madeira 2/0
ECPI2 Echium pininana Webb & Berthel. pine echium 1/0
ECPL Echium plantagineum L. salvation jane 1/0
ECVU Echium vulgare L. common viper's bugloss 4/1
ECPR Eclipta prostrata (L.) L. false daisy 3/1
ECAL Eclipta alba (L.) Hassk.   4/0
VEAL6 Verbesina alba L.   0/1
EDGR Edithcolea grandis N.E. Br. Persian carpet flower 3/0
EGPR Egletes prostrata (Sw.) Kuntze prostrate tropic daisy 2/0
EHCH Ehrendorferia chrysantha (Hook. & Arn.) Rylander golden eardrops 9/0
DICH Dicentra chrysantha (Hook. & Arn.) Walp.   3/0
EHRHA Ehrharta Thunb. veldtgrass 1/0
EHCA Ehrharta calycina Sm. perennial veldtgrass 1/0
EHER Ehrharta erecta Lam. panic veldtgrass 1/0
EHLO3 Ehrharta longiflora Sm. longflowered veldtgrass 1/0
EICHH Eichhornia Kunth water hyacinth 1/0
EIAZ2 Eichhornia azurea (Sw.) Kunth anchored water hyacinth 1/0
EICR Eichhornia crassipes (Mart.) Solms common water hyacinth 14/0
EIDI Eichhornia diversifolia (Vahl) Urban variableleaf water hyacinth 1/0
ELAEA Elaeagnus L. elaeagnus 1/0
ELAN Elaeagnus angustifolia L. Russian olive 11/1
ELCO Elaeagnus commutata Bernh. ex Rydb. silverberry 5/0
ELAR9 Elaeagnus argentea Pursh, non Moench   0/1
ELMU Elaeagnus multiflora Thunb. cherry silverberry 1/0
ELPU2 Elaeagnus pungens Thunb. thorny olive 2/0
ELUM Elaeagnus umbellata Thunb. autumn olive 1/0
ELUMP Elaeagnus umbellata Thunb. var. parvifolia (Royle) Schneid. autumn olive 2/0
ELAM3 Elatine americana (Pursh) Arn. American waterwort 0/1
ELBR5 Elatine brachysperma Gray shortseed waterwort 0/1
ELTR Elatine triandra Schkuhr threestamen waterwort 0/1
ELEOC Eleocharis R. Br. spikerush 2/0
ELAC Eleocharis acicularis (L.) Roemer & J.A. Schultes needle spikerush 1/2
ELAL Eleocharis albida Torr. white spikerush 0/1
ELAT Eleocharis atropurpurea (Retz.) J.& K. Presl purple spikerush 0/1
ELCE Eleocharis cellulosa Torr. Gulf Coast spikerush 2/0
ELCO2 Eleocharis compressa Sullivant flatstem spikerush 0/1
ELCOC2 Eleocharis compressa Sullivant var. compressa flatstem spikerush    
ELAC4 Eleocharis acuminata (Muhl.) Nees   0/1
ELDU3 Eleocharis dulcis (Burm. f.) Trin. ex Henschel Chinese water chestnut 1/0
ELEN Eleocharis engelmannii Steud. Engelmann's spikerush 0/1
ELEQ Eleocharis equisetoides (Ell.) Torr. jointed spikesedge 1/1
ELER Eleocharis erythropoda Steud. bald spikerush    
ELCA8 Eleocharis calva Torr.   1/0
ELFLF Eleocharis flavescens (Poir.) Urban var. flavescens yellow spikerush 0/1
ELIN Eleocharis intermedia J.A. Schultes matted spikerush 0/1
ELIN2 Eleocharis interstincta (Vahl) Roemer & J.A. Schultes knotted spikerush 0/1
ELMA5 Eleocharis macrostachya Britt. pale spikerush 1/1
ELME Eleocharis melanocarpa Torr. blackfruit spikerush 0/1
ELMI2 Eleocharis microcarpa Torr. smallfruit spikerush    
ELTO3 Eleocharis torreyana Boeckl.   0/1
ELMO2 Eleocharis montevidensis Kunth sand spikerush 1/0
ELMU2 Eleocharis mutata (L.) Roemer & J.A. Schultes scallion grass 0/1
ELOB2 Eleocharis obtusa (Willd.) J.A. Schultes blunt spikerush 5/2
ELOL Eleocharis olivacea Torr. bright green spikerush 0/1
ELOLO Eleocharis olivacea Torr. var. olivacea bright green spikerush    
ELFLO Eleocharis flaccida (Reichenb.) Urban var. olivacea (Torr.) Fern. & Grisc.   0/1
ELOV Eleocharis ovata (Roth) Roemer & J.A. Schultes ovate spikerush 1/2
ELPA3 Eleocharis palustris (L.) Roemer & J.A. Schultes common spikerush 3/3
ELPAP Eleocharis palustris (L.) Roemer & J.A. Schultes var. palustris common spikerush    
ELSM Eleocharis smallii Britt.   1/1
ELPA5 Eleocharis parvula (Roemer & J.A. Schultes) Link ex Bluff, Nees & Schauer dwarf spikerush 3/2
SCNA2 Scirpus nanus Spreng.   0/1
ELQU Eleocharis quadrangulata (Michx.) Roemer & J.A. Schultes squarestem spikerush 4/1
ELQU2 Eleocharis quinqueflora (F.X. Hartmann) Schwarz fewflower spikerush 0/1
ELPA6 Eleocharis pauciflora (Lightf.) Link   1/0
SCPA15 Scirpus pauciflorus Lightf.   0/1
ELRO Eleocharis robbinsii Oakes Robbins' spikerush 0/1
ELRO2 Eleocharis rostellata (Torr.) Torr. beaked spikerush 1/2
ELTE Eleocharis tenuis (Willd.) J.A. Schultes slender spikerush 0/1
ELTET Eleocharis tenuis (Willd.) J.A. Schultes var. tenuis slender spikerush    
ELCA16 Eleocharis capitata sensu Blake, non (L.) R. Br.   0/1
ELTR5 Eleocharis tricostata Torr. three-angle spikerush 0/1
ELTU Eleocharis tuberculosa (Michx.) Roemer & J.A. Schultes cone-cup spikerush 0/1
ELSI7 Eleocharis simplex (Ell.) A. Dietr.   0/1
ELWO Eleocharis wolfii (Gray) Gray ex Britt. Wolf's spikerush 0/1
ELCA3 Elephantopus carolinianus Raeusch. Carolina elephantsfoot 5/2
ELNU Elephantopus nudatus Gray smooth elephantsfoot 0/1
ELTO2 Elephantopus tomentosus L. devil's grandmother 4/1
ELCO3 Eleusine coracana (L.) Gaertn. finger millet 2/0
ELIN3 Eleusine indica (L.) Gaertn. Indian goosegrass 5/3
ELTR2 Eleusine tristachya (Lam.) Lam. threespike goosegrass 1/0
ELBA Elionurus barbiculmis Hack. woolyspike balsamscale 0/1
ELTR4 Elionurus tripsacoides Humb. & Bonpl. ex Willd. Pan American balsamscale 0/1
ELPY Elliottia pyroliflorus (Bong.) S.W. Brim & P.F. Stevens copperbush 1/0
ELRA2 Elliottia racemosa Muhl. ex Ell. georgiaplume 1/0
ELNY Ellisia nyctelea (L.) L. Aunt Lucy 1/0
NYNY2 Nyctelea nyctelea (L.) Britt.   0/1
ELRAR Elmera racemosa (S. Watson) Rydb. var. racemosa yellow coralbells 2/0
ELCA7 Elodea canadensis Michx. Canadian waterweed 2/1
PHCA23 Philotria canadensis (Michx.) Britt.   0/1
ELNU2 Elodea nuttallii (Planch.) St. John western waterweed    
PHAN14 Philotria angustifolia (Muhl.) Britt. ex Rydb.   0/1
PHMI11 Philotria minor (Engelm. ex Caspary) Small   0/1
PHNU Philotria nuttallii (Planch.) Rydb.   0/1
ELCI Elsholtzia ciliata (Thunb.) Hyl. crested latesummer mint    
ELCR5 Elsholtzia cristata Willd.   0/1
ELMA8 ×Elyhordeum macounii (Vasey) Barkworth & D.R. Dewey [Elymus trachycaulus × Hordeum jubatum] Macoun's barley    
ELMA9 Elymus macounii Vasey   1/2
ELMO4 ×Elyhordeum montanense (Scribn.) Bowden [Elymus virginicus × Hordeum jubatum] mountain barley    
HOMO3 Hordeum montanense Scribn.   0/1
HOPA5 Hordeum pammelii Scribn. & Ball   0/1
ELAR6 ×Elyleymus aristatus (Merr.) Barkworth & D.R. Dewey [Elymus elymoides × Leymus triticoides] purple wildrye    
ELAR10 Elymus aristatus Merr.   0/1
ELHI4 ×Elyleymus hirtiflorus (A.S. Hitchc.) Barkworth [Elymus trachycaulus × Leymus innovatus] Canadian wildrye    
ELHI2 Elymus hirtiflorus A.S. Hitchc.   0/1
ELYMU Elymus L. wildrye 2/0
ELALL Elymus alaskanus (Scribn. & Merr.) A. Löve ssp. latiglumis (Scribn. & J.G. Sm.) A. Löve Alaskan wheatgrass    
AGLA3 Agropyron latiglume (Scribn. & J.G. Sm.) Rydb.   0/1
AGVI3 Agropyron violaceum (Hornem.) Lange   1/0
ELAL7 Elymus albicans (Scribn. & J.G. Sm.) A. Löve Montana wheatgrass    
AGAL Agropyron albicans Scribn. & J.G. Sm.   1/1
AGGR6 Agropyron griffithii Scribn. & J.G. Sm. ex Piper [orthographic error]   0/1
ELAR7 Elymus arizonicus (Scribn. & J.G. Sm.) Gould Arizona wheatgrass    
AGAR Agropyron arizonicum Scribn. & J.G. Sm.   0/1
ELBA3 Elymus bakeri (E. Nels.) A. Löve Baker's wheatgrass    
AGBA2 Agropyron bakeri E. Nels.   0/1
ELCA10 Elymus californicus (Boland. ex Thurb.) Gould California bottlebrush grass    
HYCA8 Hystrix californica Boland. ex Thurb.   0/1
ELCA4 Elymus canadensis L. Canada wildrye 9/3
ELBR7 Elymus brachystachys Scribn. & Ball   0/1
ELCA11 Elymus caninus (L.) L. bearded wheatgrass    
AGCA2 Agropyron caninum (L.) Beauv.   2/1
ELDA3 Elymus dahuricus Turcz. ex Griseb. Dahurian wild rye 2/0
ELDI3 Elymus diversiglumis Scribn. & Ball diverseglume wildrye 0/1
ELEL5 Elymus elymoides (Raf.) Swezey squirreltail 5/0
ELELB2 Elymus elymoides (Raf.) Swezey ssp. brevifolius (J.G. Sm.) Barkworth squirreltail    
ELLO3 Elymus longifolius (J.G. Sm.) Gould   2/0
ELELE Elymus elymoides (Raf.) Swezey ssp. elymoides squirreltail 8/0
SIEL6 Sitanion elymoides Raf.   0/1
SIHY Sitanion hystrix (Nutt.) J.G. Sm.   3/1
ELGL Elymus glaucus Buckl. blue wildrye 1/2
ELGLV Elymus glaucus Buckl. ssp. virescens (Piper) Gould blue wildrye    
ELVI10 Elymus virescens Piper   0/1
ELHA3 Elymus ×hansenii Scribn. (pro sp.) [glaucus × elymoides or multisetus]    
SIHA7 Sitanion hansenii (Scribn.) J.G. Sm.   0/1
ELHI Elymus hirsutus J. Presl northern ryegrass 0/1
ELHY Elymus hystrix L. eastern bottlebrush grass 2/0
ELHYH Elymus hystrix L. var. hystrix eastern bottlebrush grass    
HYHY2 Hystrix hystrix (L.) Millsp.   0/1
HYPA3 Hystrix patula Moench   1/1
ELIN6 Elymus interruptus Buckl. Texas wildrye 0/1
ELLAL Elymus lanceolatus (Scribn. & J.G. Sm.) Gould ssp. lanceolatus thickspike wheatgrass 2/0
AGDA Agropyron dasystachyum (Hook.) Scribn. & J.G. Sm.   2/2
AGEL2 Agropyron elmeri Scribn.   0/1
AGRI5 Agropyron riparium Scribn. & J.G. Sm.   0/1
ELRI3 Elytrigia ripara (Scribn. & J.G. Sm.) Beetle [orthographic error]   0/1
ELMU3 Elymus multisetus M.E. Jones big squirreltail    
SIJU Sitanion jubatum J.G. Sm.   0/1
ELPS Elymus ×pseudorepens (Scribn. & J.G. Sm.) Barkworth & D.R. Dewey [lanceolatus × trachycaulus]    
AGPS Agropyron pseudorepens Scribn. & J.G. Sm.   1/2
ELRE4 Elymus repens (L.) Gould quackgrass 1/1
AGRE2 Agropyron repens (L.) Beauv.   1/2
ELRI Elymus riparius Wieg. riverbank wildrye 1/1
ELSA4 Elymus ×saundersii Vasey (pro sp.) [elymoides × trachycaulus]    
AGSA6 Agropyron saundersii (Vasey) A.S. Hitchc.   0/1
ELSC4 Elymus scribneri (Vasey) M.E. Jones spreading wheatgrass    
AGSC4 Agropyron scribneri Vasey   0/1
ELSE6 Elymus semicostatus (Nees ex Steud.) A. Löve drooping wildrye    
AGSE Agropyron semicostatum Nees ex Steud.   1/0
ELSI Elymus sibiricus L. Siberian wildrye 1/0
ELSI11 Elymus sierrus Gould Sierra wildrye    
AGPR Agropyron pringlei (Scribn. & J.G. Sm.) A.S. Hitchc., not Elymus pringlei Scribn. & Merr.   0/1
ELSTS2 Elymus stebbinsii Gould ssp. stebbinsii Parish wheatgrass    
AGPA7 Agropyron parishii Scribn. & J.G. Sm.   0/1
ELSU Elymus submuticus (Hook.) Smyth & Smyth Virginia wildrye    
ELCU2 Elymus curvatus Piper   0/1
ELTR7 Elymus trachycaulus (Link) Gould ex Shinners slender wheatgrass 1/0
ELTRS Elymus trachycaulus (Link) Gould ex Shinners ssp. subsecundus (Link) A.& D. Löve slender wheatgrass    
AGSU Agropyron subsecundum (Link) A.S. Hitchc.   1/1
ELTRT Elymus trachycaulus (Link) Gould ex Shinners ssp. trachycaulus slender wheatgrass 1/0
AGTE4 Agropyron tenerum Vasey   0/1
AGTR Agropyron trachycaulum (Link) Malte ex H.F. Lewis   2/1
AGTRM Agropyron trachycaulum (Link) Malte ex H.F. Lewis var. majus (Vasey) Fern.   0/1
ELVI Elymus villosus Muhl. ex Willd. hairy wildrye 1/1
ELAR13 Elymus arkansanus Scribn. & Ball   0/1
ELVI3 Elymus virginicus L. Virginia wildrye 6/3
ELVIH Elymus virginicus L. var. halophilus (Bickn.) Wieg. Virginia wildrye 1/0
ELHA5 Elymus halophilus Bickn.   0/1
ELVIV Elymus virginicus L. var. virginicus Virginia wildrye    
ELAU2 Elymus australis Scribn. & Ball   0/1
ELGL3 Elymus glabriflorus (Vasey) Scribn. & Ball   0/1
ELHI5 Elymus hirsutiglumis Scribn.   0/1
ELJE Elymus jejunus (Ramaley) Rydb.   0/1
ELST5 Elymus striatus Willd.   0/1
ELVU Elymus vulpinus Rydb. Rydberg's wildrye 0/1
AGVU Agropyron vulpinum (Rydb.) A.S. Hitchc.   0/1
ELYTR Elytraria Michx. scalystem 1/0
EMCO2 Embothrium coccineum J.R. Forster & G. Forster Chilean firebush 2/0
EMAU Emex australis Steinh. southern threecornerjack 1/0
EMFO Emilia fosbergii D.H. Nicols. Florida tasselflower 2/0
EMSO Emilia sonchifolia (L.) DC. lilac tasselflower 1/0
EMPE Emmenanthe penduliflora Benth. whisperingbells 1/0
EMPET Empetrum L. crowberry 1/0
EMNI Empetrum nigrum L. black crowberry 6/2
ENMI2 Encalypta microstoma Bals. & De Not. candle snuffer moss 4/0
ENRH70 Encalypta rhaptocarpa Schwaegr. yellow awn candle snuffer moss    
ENRH2 Encalypta rhabdocarpa nom. illeg. orthogr. pro   4/0
ENSP Encalypta spathulata C. Müll. spathulate candle snuffer moss 1/0
ENVU Encalypta vulgaris Hedw. common candle snuffer moss 2/0
ENAC Encelia actonii Elmer Acton's brittlebush    
ENVIA Encelia virginensis A. Nels. var. actonii (Elmer) B.L. Turner   2/0
ENCA Encelia californica Nutt. California brittlebush 5/0
ENFA Encelia farinosa Gray ex Torr. brittlebush 14/0
ENFR Encelia frutescens (Gray) Gray button brittlebush 6/0
ENCO Enceliopsis covillei (A. Nels.) Blake Panamint daisy 1/0
ENNUC Enceliopsis nudicaulis (Gray) A. Nels. var. corrugata Cronq. nakedstem sunray 14/0
ENNUN Enceliopsis nudicaulis (Gray) A. Nels. var. nudicaulis nakedstem sunray 7/0
ENFE Encephalartos ferox G. Bertol. Zululand cycad 2/0
ENWO Encephalartos woodii Sander Wood's cycad 1/0
ENTA Encyclia tampensis (Lindl.) Small Tampa butterfly orchid 1/0
ENPU2 Endocarpon pusillum Hedwig chalice lichen 1/0
ENEMI Enemion Raf. false rue anemone 2/0
ENBI Enemion biternatum Raf. eastern false rue anemone    
ISBI2 Isopyrum biternatum (Raf.) Torr. & Gray   1/1
ENPE4 Engelmannia peristenia (Raf.) Goodman & Lawson Engelmann's daisy 2/0
ENPI Engelmannia pinnatifida Gray ex Nutt.   2/1
ENNEA Enneapogon Desv. ex Beauv. feather pappusgrass 2/0
ENDE Enneapogon desvauxii Desv. ex Beauv. nineawn pappusgrass 2/1
ENAR2 Entelea arborescens R. Br. 3/0
ENCO2 Enterolobium contortisiliquum (Vell.) Morong pacara earpod tree 1/0
ENCH Enteropogon chlorideus (J. Presl) W.D. Clayton buryseed umbrellagrass    
CHCH2 Chloris chloridea (J. Presl) A.S. Hitchc.   0/1
ENPR Enteropogon prieurii (Kunth) W.D. Clayton Prieur's umbrellagrass    
CHPR3 Chloris prieurii Kunth   1/0
ENCO70 Entodon concinnus (De Not.) Par. entodon moss 2/0
ENMA5 Entolasia marginata (R. Br.) Hughes Australian panicgrass 1/0
ENAT2 Entosthodon attenuatus (Dicks.) Bryhn attenuate entosthodon moss 3/0
ENFA2 Entosthodon fascicularis (Hedw.) C. Müll. entosthodon moss 3/0
EPHED Ephedra L. jointfir 3/0
EPAN Ephedra antisyphilitica Berl. ex C.A. Mey. clapweed 2/0
EPCA2 Ephedra californica S. Wats. California jointfir 3/0
EPCU Ephedra cutleri Peebles Cutler's jointfir 4/0
EPFA Ephedra fasciculata A. Nels. Arizona jointfir 2/0
EPFU Ephedra funerea Coville & Morton Death Valley jointfir 3/0
EPGE2 Ephedra gerardiana Wallich ex Stapf Gerard jointfir 1/0
EPNE Ephedra nevadensis S. Wats. Nevada jointfir 3/0
EPTO Ephedra torreyana S. Wats. Torrey's jointfir 8/0
EPTR Ephedra trifurca Torr. ex S. Wats. longleaf jointfir 7/0
EPVI Ephedra viridis Coville mormon tea 19/0
EPSE6 Ephemerum serratum (Hedw.) Hampe serrate ephemerum moss 1/0
EPMI5 Ephemerum minutissimum Lindb.   3/0
EPIDE Epidendrum L. star orchid 2/0
EPCI2 Epidendrum ciliare L. fringed star orchid 2/0
EPIB Epidendrum ibaguense Kunth [excluded] 6/0
EPPA9 Epidendrum parkinsonianum Hook. 1/0
EPRA2 Epidendrum radicans Pavón ex Lindley fire star orchid 1/0
EPSE2 Epidendrum secundum Jacq. lopsided star orchid 2/0
EPVI2 Epifagus virginiana (L.) W. Bart. beechdrops 2/0
LEVI14 Leptamnium virginianum (L.) Raf.   0/1
EPRE2 Epigaea repens L. trailing arbutus 6/2
EPAN4 Epilobium anagallidifolium Lam. pimpernel willowherb 0/1
EPAL Epilobium alpinum L. p.p.   1/1
EPBR3 Epilobium brachycarpum K. Presl tall annual willowherb 6/0
EPPA2 Epilobium paniculatum Nutt. ex Torr. & Gray   2/1
EPCA3 Epilobium canum (Greene) Raven hummingbird trumpet 2/0
EPCAA Epilobium canum (Greene) Raven ssp. angustifolium (Keck) Raven hummingbird trumpet 7/0
ZACA6 Zauschneria californica K. Presl   7/0
EPCAG Epilobium canum (Greene) Raven ssp. garrettii (A. Nels.) Raven Garrett's firechalice 2/0
EPCAL Epilobium canum (Greene) Raven ssp. latifolium (Hook.) Raven hummingbird trumpet 1/0
EPCI Epilobium ciliatum Raf. fringed willowherb 6/0
EPCIC Epilobium ciliatum Raf. ssp. ciliatum fringed willowherb 3/0
EPAD Epilobium adenocaulon Hausskn.   2/1
EPCIG Epilobium ciliatum Raf. ssp. glandulosum (Lehm.) Hoch & Raven fringed willowherb 2/0
EPGL4 Epilobium glandulosum Lehm.   1/0
EPCIW Epilobium ciliatum Raf. ssp. watsonii (Barbey) Hoch & P.H. Raven fringed willowherb 1/0
EPCL Epilobium clavatum Trel. talus willowherb 1/0
EPCO Epilobium coloratum Biehler purpleleaf willowherb 2/2
EPDE4 Epilobium densiflorum (Lindl.) Hoch & Raven denseflower willowherb    
BODE Boisduvalia densiflora (Lindl.) S. Wats.   1/0
EPGL Epilobium glaberrimum Barbey glaucus willowherb 2/1
EPHI Epilobium hirsutum L. codlins and cream 0/1
EPHO Epilobium hornemannii Reichenb. Hornemann's willowherb 0/1
EPHOH Epilobium hornemannii Reichenb. ssp. hornemannii Hornemann's willowherb 1/0
EPLA3 Epilobium lactiflorum Hausskn. milkflower willowherb 2/0
EPLE2 Epilobium leptophyllum Raf. bog willowherb 1/1
EPLU Epilobium luteum Pursh yellow willowherb 2/0
EPMI Epilobium minutum Lindl. ex Lehm. chaparral willowherb 2/0
EPNE2 Epilobium nevadense Munz Nevada willowherb 1/0
EPOB Epilobium obcordatum Gray rockfringe 3/0
EPPA Epilobium palustre L. marsh willowherb 0/1
EPLI Epilobium lineare Muhl.   0/1
EPST Epilobium strictum Muhl. ex Spreng. downy willowherb 0/1
EPIPA Epipactis Zinn helleborine 2/0
EPGI Epipactis gigantea Dougl. ex Hook. stream orchid 24/0
EPHE Epipactis helleborine (L.) Crantz broadleaf helleborine 1/0
SEHE6 Serapias helleborine L.   0/1
EPAC2 Epiphyllum ackermanii Haw. orchid cactus 4/0
EPMA2 Epiphyllum macropterum (Lem.) Britton & Rose orchid cactus 1/0
EPTO2 Epipterygium tozeri (Grev.) Lindb. Tozer's epipterygium moss 5/0
EPCU2 Episcia cupreata (Hook.) Hanst. flame violet 2/0
EPMI2 Epithelantha micromeris (Engelm.) A. Weber ex Britt. & Rose pingpong ball cactus 5/0
EQUIS Equisetum L. horsetail 1/0
EQAR Equisetum arvense L. field horsetail 5/2
EQFL Equisetum fluviatile L. water horsetail 2/2
EQGI Equisetum giganteum L. giant horsetail 3/0
EQHY Equisetum hyemale L. scouringrush horsetail 6/2
EQHYA Equisetum hyemale L. var. affine (Engelm.) A.A. Eat. scouringrush horsetail    
EQRO Equisetum robustum A. Braun   0/1
EQLA Equisetum laevigatum A. Braun smooth horsetail 1/2
EQLI Equisetum ×litorale Kühlewein ex Rupr. (pro sp.) [arvense × fluviatile] 0/1
EQPA Equisetum palustre L. marsh horsetail 0/1
EQPR Equisetum pratense Ehrh. meadow horsetail 0/1
EQSC Equisetum scirpoides Michx. dwarf scouringrush 0/1
EQSY Equisetum sylvaticum L. woodland horsetail 2/2
EQTE Equisetum telmateia Ehrh. giant horsetail 2/0
EQTEB Equisetum telmateia Ehrh. var. braunii (Milde) Milde giant horsetail 4/0
EQVA Equisetum variegatum Schleich. ex F. Weber & D.M.H. Mohr variegated scouringrush 0/1
ERAGR Eragrostis von Wolf lovegrass 4/0
ERAI3 Eragrostis airoides Nees darnel lovegrass 1/0
ERAM7 Eragrostis amabilis (L.) Wight & Arn. ex Nees Japanese lovegrass 0/1
ERAT3 Eragrostis atrovirens (Desv.) Trin. ex Steud. thalia lovegrass 2/0
ERCH3 Eragrostis chariis auct. non (J.A. Schultes) A.S. Hitchc. [misapplied]   2/1
ERNU8 Eragrostis nutans auct. non (Retz.) Nees ex Steud. [misapplied]   2/0
ERBA Eragrostis bahiensis (Schrad. ex J.A. Schultes) J.A. Schultes Bahia lovegrass 0/1
ERBA2 Eragrostis barrelieri Daveau Mediterranean lovegrass 0/1
ERCA Eragrostis capillaris (L.) Nees lace grass 0/2
ERCH15 Eragrostis chaetophylla Steud. bristleleaf lovegrass    
ERSE9 Eragrostis setifolia Nees   1/0
ERCI Eragrostis cilianensis (All.) Vign. ex Janchen stinkgrass 1/1
ERMA12 Eragrostis major Host   0/1
ERCI2 Eragrostis ciliaris (L.) R. Br. gophertail lovegrass 0/1
ERCU5 Eragrostis cumingii Steud. Cuming's lovegrass    
ERBR Eragrostis brownei (Kunth ex Chapman) Nees ex Steud.   2/0
ERSI7 Eragrostis simplex Scribn.   0/1
ERCU Eragrostis curtipedicellata Buckl. gummy lovegrass 0/2
ERCU2 Eragrostis curvula (Schrad.) Nees weeping lovegrass 5/1
ERCH2 Eragrostis chloromelas Steud.   2/0
ERCY4 Eragrostis cylindriflora Hochst. cylinderflower lovegrass    
ERHO16 Eragrostis horizontalis Peter   1/0
EREC Eragrostis echinochloidea Stapf African lovegrass 2/0
EREL Eragrostis elliottii S. Wats. field lovegrass 0/1
ERER Eragrostis erosa Scribn. Chihuahuan lovegrass 0/1
ERFR Eragrostis frankii C.A. Mey. ex Steud. sandbar lovegrass 0/2
ERGA2 Eragrostis gangetica (Roxb.) Steud. slimflower lovegrass    
ERST7 Eragrostis stenophylla auct. non Hochst. ex Miq. [misapplied]   1/0
ERHI Eragrostis hirsuta (Michx.) Nees bigtop lovegrass 2/2
ERHY Eragrostis hypnoides (Lam.) B.S.P. teal lovegrass 1/3
ERIN Eragrostis intermedia A.S. Hitchc. plains lovegrass 3/1
ERJA4 Eragrostis japonica (Thunb.) Trin. pond lovegrass 2/0
ERGL Eragrostis glomerata (Walt.) L.H. Dewey   2/1
ERLE Eragrostis lehmanniana Nees Lehmann lovegrass 1/0
ERLE4 Eragrostis leptostachya (R. Br.) Steud. Australian lovegrass 1/0
ERLU Eragrostis lugens Nees mourning lovegrass 2/1
ERLU2 Eragrostis lutescens Scribn. sixweeks lovegrass 0/1
ERME Eragrostis mexicana (Hornem.) Link Mexican lovegrass 0/1
ERMEM Eragrostis mexicana (Hornem.) Link ssp. mexicana Mexican lovegrass    
ERNE Eragrostis neomexicana Vasey ex L.H. Dewey   0/1
ERMEV Eragrostis mexicana (Hornem.) Link ssp. virescens (J. Presl) S.D. Koch & Sánchez Vega Mexican lovegrass    
EROR Eragrostis orcuttiana Vasey   0/1
ERVI17 Eragrostis virescens J. Presl   1/0
ERMI5 Eragrostis minor Host little lovegrass    
ERER9 Eragrostis eragrostis (L.) Beauv.   0/1
ERPO9 Eragrostis poaeoides Beauv. ex Roemer & J.A. Schultes   0/1
EROB Eragrostis obtusiflora (Fourn.) Scribn. alkali lovegrass 0/1
ERPA Eragrostis palmeri S. Wats. Rio Grande lovegrass 0/1
ERPE Eragrostis pectinacea (Michx.) Nees ex Steud. tufted lovegrass 0/2
ERPEM Eragrostis pectinacea (Michx.) Nees ex Steud. var. miserrima (Fourn.) J. Reeder desert lovegrass    
ERAR Eragrostis arida A.S. Hitchc.   0/1
ERTE3 Eragrostis tephrosanthos J.A. Schultes   0/1
ERPEP2 Eragrostis pectinacea (Michx.) Nees ex Steud. var. pectinacea tufted lovegrass    
ERDI15 Eragrostis diffusa Buckl.   0/1
ERPU14 Eragrostis purshii hort. ex Schrad.   0/1
ERPET3 Eragrostis pectinacea (Michx.) Nees ex Steud. var. tracyi (A.S. Hitchc.) P.M. Peterson Sanibel Island lovegrass    
ERTR Eragrostis tracyi A.S. Hitchc.   0/1
ERPI2 Eragrostis pilosa (L.) Beauv. Indian lovegrass 1/2
ERMU5 Eragrostis multicaulis Steud.   0/1
ERPE16 Eragrostis perplexa L.H. Harvey   0/1
ERPL Eragrostis plana Nees South African lovegrass 2/0
ERPO15 Eragrostis polytricha Nees hairysheath lovegrass    
ERTR2 Eragrostis trichocolea auct. non Hack. & Arech. [misapplied]   2/1
ERPR7 Eragrostis prolifera (Sw.) Steud. Dominican lovegrass 2/0
ERRE Eragrostis refracta (Muhl.) Scribn. coastal lovegrass 0/2
ERAC5 Eragrostis acuta A.S. Hitchc.   0/1
ERSE Eragrostis secundiflora J. Presl red lovegrass 1/1
ERSEO Eragrostis secundiflora J. Presl ssp. oxylepis (Torr.) S.D. Koch red lovegrass    
EROX Eragrostis oxylepis (Torr.) Torr.   0/1
ERSES3 Eragrostis secundiflora J. Presl ssp. secundiflora J. Presl [excluded] red lovegrass    
ERBE12 Eragrostis beyrichii J.G. Sm. [excluded]   0/1
ERSE2 Eragrostis sessilispica Buckl. tumble lovegrass 0/1
ACSE5 Acamptoclados sessilispicus (Buckl.) Nash   0/1
ERSI Eragrostis silveana Swallen Silveus' lovegrass 0/1
ERSP Eragrostis spectabilis (Pursh) Steud. purple lovegrass 5/2
ERSP2 Eragrostis spicata Vasey spike lovegrass 0/1
ERSU Eragrostis superba Peyr. Wilman lovegrass 1/0
ERSW Eragrostis swallenii A.S. Hitchc. Swallen's lovegrass 0/1
ERTE Eragrostis tef (Zuccagni) Trotter teff 2/0
ERTE19 Eragrostis tenuifolia (A. Rich.) Hochst. ex Steud. elastic grass 2/0
ERTR3 Eragrostis trichodes (Nutt.) Wood sand lovegrass 0/2
ERPI Eragrostis pilifera Scheele   0/1
ERUN Eragrostis unioloides (Retz.) Nees ex Steud. Chinese lovegrass 2/1
ERHY4 Eranthis hyemalis (L.) Salisb. winter aconite 0/1
ERHI2 Erechtites hieraciifolia (L.) Raf. ex DC. American burnweed 4/0
ERHI9 Erechtites hieracifolia (L.) Raf. ex DC. [orthographic variant]   5/1
ERPAP9 Eremalche parryi (Greene) Greene ssp. parryi Parry's mallow 2/0
ERRO8 Eremalche rotundifolia (Gray) Greene desert fivespot 7/0
MARO9 Malvastrum rotundifolium Gray   1/0
ERCI10 Eremochloa ciliaris (L.) Merr. fringed centipede grass 2/0
EROP Eremochloa ophiuroides (Munro) Hack. centipede grass 1/0
ERAL Eremocrinum albomarginatum (M.E. Jones) M.E. Jones lonely lily 3/0
ERMY3 Eremonotus myriocarpus (Carrington) Lindb. & Kaal. ex Pearson 2/0
ERSU17 Eremophila subfloccosa Benth. fuchsia bush 2/0
EROR7 Eremopyrum orientale (L.) Jaubert & Spach Oriental false wheatgrass 1/0
ERTR13 Eremopyrum triticeum (Gaertn.) Nevski annual wheatgrass 1/0
AGTR5 Agropyron triticeum Gaertn.   2/0
ERIAS Eriastrum Woot. & Standl. woollystar 1/0
ERDI2 Eriastrum diffusum (Gray) Mason miniature woollystar 8/0
ERER2 Eriastrum eremicum (Jepson) Mason desert woollystar 4/0
ERERE Eriastrum eremicum (Jepson) Mason ssp. eremicum desert woollystar 3/0
ERPL2 Eriastrum pluriflorum (Heller) Mason Tehachapi woollystar 11/0
ERSA Eriastrum sapphirinum (Eastw.) Mason sapphire woollystar 4/0
ERSP3 Eriastrum sparsiflorum (Eastw.) Mason Great Basin woollystar 9/0
ERWI Eriastrum wilcoxii (A. Nels.) Mason Wilcox's woollystar 3/0
ERICA Erica L. heath 1/0
ERAR28 Erica arborea L. briar root 1/0
ERCA38 Erica canaliculata Andrews hairy grey heather 2/0
ERCI3 Erica cinerea L. Scotch heath 1/0
ERDI17 Erica diaphana Spreng. heath 1/0
ERTE4 Erica tetralix L. crossleaf heath 3/0
ERVA2 Erica vagans L. Cornish heath 1/0
ERICA2 Ericameria Nutt. goldenbush 1/0
ERAR27 Ericameria arborescens (Gray) Greene goldenfleece    
HAAR Haplopappus arborescens (Gray) Hall   1/0
ERBL2 Ericameria bloomeri (Gray) J.F. Macbr. rabbitbush 2/0
ERCO23 Ericameria cooperi (Gray) Hall Cooper's goldenbush 1/0
ERLA12 Ericameria laricifolia (Gray) Shinners turpentine bush 1/0
HALA5 Haplopappus laricifolius Gray   2/0
ERLI6 Ericameria linearifolia (DC.) Urbatsch & Wussow narrowleaf goldenbush 3/0
HALI5 Haplopappus linearifolius DC.   2/0
ERNA10 Ericameria nauseosa (Pallas ex Pursh) Nesom & Baird rubber rabbitbrush 2/0
ERNAO Ericameria nauseosa (Pallas ex Pursh) Nesom & Baird ssp. consimilis (Greene) Nesom & Baird var. oreophila (A. Nels.) Nesom & Baird rubber rabbitbrush 2/0
ERNAB2 Ericameria nauseosa (Pallas ex Pursh) Nesom & Baird ssp. nauseosa var. bigelovii (Gray) Nesom & Baird rubber rabbitbrush    
CHNAB2 Chrysothamnus nauseosus (Pallas ex Pursh) Britt ssp. bigelovii (Gray) Hall & Clements   1/0
ERNAG Ericameria nauseosa (Pallas ex Pursh) Nesom & Baird ssp. nauseosa var. glabrata (Gray) Nesom & Baird rubber rabbitbrush    
CHGR12 Chrysothamnus graveolens (Nutt.) Greene   0/1
ERNAN5 Ericameria nauseosa (Pallas ex Pursh) Nesom & Baird ssp. nauseosa var. nauseosa rubber rabbitbrush    
CHNA2 Chrysothamnus nauseosus (Pallas ex Pursh) Britt   3/0
ERNAS2 Ericameria nauseosa (Pallas ex Pursh) Nesom & Baird ssp. nauseosa var. speciosa (Nutt.) Nesom & Baird rubber rabbitbrush 3/0
ERPA24 Ericameria parishii (Greene) Hall Parish's rabbitbrush    
HAPA5 Haplopappus parishii (Greene) Blake   1/1
ERPAH Ericameria parryi (Gray) Nesom & Baird var. howardii (Parry ex Gray) Nesom & Baird Parry's rabbitbrush    
CHHO6 Chrysothamnus howardii (Parry ex Gray) Greene   0/1
ERPAP10 Ericameria parryi (Gray) Nesom & Baird var. parryi Parry's rabbitbrush    
CHPA13 Chrysothamnus parryi (Gray) Greene   2/0
ERBU Erigenia bulbosa (Michx.) Nutt. harbinger of spring 0/1
ERIGE2 Erigeron L. fleabane 1/0
ERAC2 Erigeron acris L. bitter fleabane 0/1
ERAL18 Erigeron algidus Jepson stalked fleabane 4/0
ERAN Erigeron annuus (L.) Pers. eastern daisy fleabane 7/2
ERAP Erigeron aphanactis (Gray) Greene rayless shaggy fleabane 5/0
ERAR3 Erigeron argentatus Gray silver fleabane 9/0
ERAS3 Erigeron asper Nutt. rough fleabane 0/1
ERAU Erigeron aureus Greene alpine yellow fleabane 1/0
ERAU6 Erigeron austiniae Greene sagebrush fleabane 2/0
ERBE2 Erigeron bellidiastrum Nutt. western daisy fleabane 3/1
ERBL Erigeron bloomeri Gray scabland fleabane 1/0
ERBLB Erigeron bloomeri Gray var. bloomeri scabland fleabane 3/0
ERBR4 Erigeron breweri Gray Brewer's fleabane 5/0
ERBRP Erigeron breweri Gray var. porphyreticus (M.E. Jones) Cronq. Brewer's fleabane 2/0
ERCA2 Erigeron caespitosus Nutt. tufted fleabane 0/1
ERCA4 Erigeron canus Gray hoary fleabane 2/1
ERCL Erigeron clokeyi Cronq. Clokey's fleabane 3/0
ERCLP Erigeron clokeyi Cronquist var. pinzliae G.L. Nesom Clokey's fleabane 3/0
ERCO3 Erigeron compactus Blake cushion daisy 9/0
ERCO4 Erigeron compositus Pursh cutleaf daisy 12/0
ERCO27 Erigeron concinnus (Hook. & Arn.) Torr. & Gray Navajo fleabane 3/0
ERCOC3 Erigeron concinnus (Hook. & Arn.) Torr. & Gray var. concinnus Navajo fleabane 2/0
ERCO6 Erigeron coulteri Porter large mountain fleabane 4/0
ERDI4 Erigeron divergens Torr. & Gray spreading fleabane 5/1
EREA Erigeron eatonii Gray Eaton's fleabane 3/0
EREAN Erigeron eatonii Gray var. nevadincola (S.F. Blake) Nesom Eaton's fleabane 2/0
EREAS Erigeron eatonii Gray var. sonnei (Greene) Nesom Eaton's fleabane 2/0
EREL9 Erigeron elatior (Gray) Greene tall fleabane 2/0
EREX4 Erigeron eximius Greene sprucefir fleabane 4/0
ERFI2 Erigeron filifolius (Hook.) Nutt. threadleaf fleabane 4/0
ERFL Erigeron flagellaris Gray trailing fleabane 3/1
ERNU7 Erigeron nudiflorus Buckl.   2/0
ERGL3 Erigeron glaucus Ker-Gawl. seaside fleabane 7/0
ERHY5 Erigeron hyssopifolius Michx. hyssopleaf fleabane 0/1
ERKA Erigeron kachinensis Welsh & Moore kachina fleabane 2/0
ERKA2 Erigeron karvinskianus DC. Latin American fleabane 2/0
ERLA14 Erigeron latus (A. Nelson & J.F. Macbr.) Cronquist broad fleabane 1/0
ERLE6 Erigeron leiomerus Gray rockslide yellow fleabane 7/0
ERLO Erigeron lonchophyllus Hook. shortray fleabane    
TRLO3 Trimorpha lonchophylla (Hook.) G.L. Nesom   3/0
ERMO2 Erigeron modestus Gray plains fleabane 2/0
ERNE3 Erigeron neomexicanus Gray New Mexico fleabane 1/0
ERPE3 Erigeron peregrinus (Banks ex Pursh) Greene subalpine fleabane 7/1
ERPEC2 Erigeron peregrinus (Banks ex Pursh) Greene ssp. callianthemus (Greene) Cronq. var. callianthemus subalpine fleabane 3/0
ERPH Erigeron philadelphicus L. Philadelphia fleabane 13/2
ERPI6 Erigeron pinnatisectus (A. Gray) A. Nelson featherleaf fleabane 2/0
ERPOP Erigeron poliospermus Gray var. poliospermus purple cushion fleabane 1/0
ERPR16 Erigeron procumbens (Houst. ex P. Mill.) Nesom Corpus Christi fleabane 1/0
ERPU Erigeron pulchellus Michx. robin's plantain 4/2
ERPU9 Erigeron pulcherrimus Heller basin fleabane 3/0
ERPU2 Erigeron pumilus Nutt. shaggy fleabane 0/1
ERPY Erigeron pygmaeus (Gray) Greene pygmy fleabane 1/0
ERQU Erigeron quercifolius Lam. oakleaf fleabane 1/0
ERRH2 Erigeron rhizomatus Cronq. rhizome fleabane 2/0
ERSP4 Erigeron speciosus (Lindl.) DC. aspen fleabane 3/0
ERSPS Erigeron speciosus (Lindl.) DC. var. speciosus aspen fleabane 2/0
ERST3 Erigeron strigosus Muhl. ex Willd. prairie fleabane 6/1
ERSTS2 Erigeron strigosus Muhl. ex Willd. var. strigosus prairie fleabane    
ERRA8 Erigeron ramosus (Walt.) B.S.P.   0/1
ERSU2 Erigeron subtrinervis Rydb. ex Porter & Britt. threenerve fleabane 0/1
ERTE7 Erigeron tenuis Torr. & Gray slenderleaf fleabane 2/1
ERUN4 Erigeron uniflorus L. oneflower fleabane 0/1
ERVA3 Erigeron vagus Payson rambling fleabane 3/0
ERVE Erigeron vernus (L.) Torr. & Gray early whitetop fleabane 2/1
ERWA5 Erigeron watsonii (Gray) Cronq. Watson's fleabane 3/0
ERJA3 Eriobotrya japonica (Thunb.) Lindl. loquat 7/0
ERIOC Eriocaulon L. pipewort 1/0
ERAQ2 Eriocaulon aquaticum (Hill) Druce sevenangle pipewort 2/0
ERSE4 Eriocaulon septangulare Withering   1/1
ERCO7 Eriocaulon compressum Lam. flattened pipewort 2/1
ERDE5 Eriocaulon decangulare L. tenangle pipewort 2/2
ERPA4 Eriocaulon parkeri B.L. Robins. estuary pipewort 1/1
ERSEP Eriocaulon septangulare Withering var. parkeri (B.L. Robins.) Boivin & J. Cayouette   0/1
ERRA7 Eriocaulon ravenelii Chapman Ravenel's pipewort 3/0
ERACA Eriochloa acuminata (J. Presl) Kunth var. acuminata tapertip cupgrass    
ERGR4 Eriochloa gracilis (Fourn.) A.S. Hitchc.   0/1
ERAR5 Eriochloa aristata Vasey bearded cupgrass 0/1
ERCO8 Eriochloa contracta A.S. Hitchc. prairie cupgrass 0/1
ERFA3 Eriochloa fatmensis (Hochst. & Steud.) W.D. Clayton tropical cupgrass    
ERNU80 Eriochloa nubica (Steud.) Thellung   1/0
ERPR2 Eriochloa procera auct. non (Retz.) C.E. Hubbard [misapplied]   2/1
ERLE7 Eriochloa lemmonii Vasey & Scribn. canyon cupgrass 0/1
ERMI3 Eriochloa michauxii (Poir.) A.S. Hitchc. longleaf cupgrass 0/1
ERPO3 Eriochloa polystachya Kunth Caribgrass 2/0
ERPU4 Eriochloa punctata (L.) Desv. ex Hamilton Louisiana cupgrass 1/2
ERSE5 Eriochloa sericea (Scheele) Munro ex Vasey Texas cupgrass 0/1
ERVI3 Eriochloa villosa (Thunb.) Kunth hairy cupgrass 1/0
ERAN2 Eriodictyon angustifolium Nutt. narrowleaf yerba santa 2/0
ERCA6 Eriodictyon californicum (Hook. & Arn.) Torr. California yerba santa 7/0
ERCR2 Eriodictyon crassifolium Benth. thickleaf yerba santa 1/0
ERTO Eriodictyon tomentosum Benth. woolly yerba santa 2/0
ERTR6 Eriodictyon traskiae Eastw. Pacific yerba santa 4/0
ERIOG Eriogonum Michx. buckwheat 4/1
ERAB2 Eriogonum abertianum Torr. Abert's buckwheat 1/0
ERAL4 Eriogonum alatum Torr. winged buckwheat 3/1
ERALA2 Eriogonum alatum Torr. var. alatum winged buckwheat    
PTAL3 Pterogonum alatum (Torr.) Gross.   2/0
ERAL5 Eriogonum allenii S. Wats. shale barren buckwheat 1/1
ERAM2 Eriogonum ampullaceum J.T. Howell Mono buckwheat 2/0
ERAN8 Eriogonum anemophilum Greene west Humboldt buckwheat 4/0
ERAN4 Eriogonum annuum Nutt. annual buckwheat 3/1
ERAR6 Eriogonum arborescens Greene Santa Cruz Island buckwheat 6/0
ERAR8 Eriogonum aretioides Barneby Red Canyon buckwheat 2/0
ERAR18 Eriogonum argophyllum Reveal Sulphur Hot Springs buckwheat 3/0
ERBA7 Eriogonum baileyi S. Wats. Bailey's buckwheat 3/0
ERBAP Eriogonum baileyi S. Wats. var. praebens (Gandog.) Reveal Bailey's buckwheat 2/0
ERBI2 Eriogonum bifurcatum Reveal Pahrump Valley buckwheat 3/0
ERBR7 Eriogonum brachyanthum Coville shortflower buckwheat 3/0
ERBR8 Eriogonum brachypodum Torr. & Gray Parry's buckwheat 1/0
ERBRB4 Eriogonum brevicaule Nutt. var. brevicaule shortstem buckwheat    
ERCA18 Eriogonum campanulatum Nutt.   0/1
ERBRL Eriogonum brevicaule Nutt. var. laxifolium (Torr. & Gray) Reveal shortstem buckwheat    
ERNA3 Eriogonum nanum Reveal   1/0
ERCA8 Eriogonum caespitosum Nutt. matted buckwheat 3/0
ERCE2 Eriogonum cernuum Nutt. nodding buckwheat 2/1
ERCL2 Eriogonum clavellatum Small Comb Wash buckwheat 1/0
ERCO12 Eriogonum compositum Dougl. ex Benth. arrowleaf buckwheat 4/0
ERCOC8 Eriogonum compositum Dougl. ex Benth. var. compositum arrowleaf buckwheat 2/0
ERCOL Eriogonum compositum Dougl. ex Benth. var. lancifolium St. John & Warren arrowleaf buckwheat 4/0
ERCO18 Eriogonum concinnum Reveal mourning buckwheat 3/0
ERCO19 Eriogonum congdonii (S. Stokes) Reveal Congdon's buckwheat 3/0
ERCO20 Eriogonum contiguum (Reveal) Reveal Reveal's buckwheat 1/0
ERCO14 Eriogonum corymbosum Benth. crispleaf buckwheat 8/1
ERCOC9 Eriogonum corymbosum Benth. var. corymbosum crispleaf buckwheat 2/0
ERCR3 Eriogonum crocatum A. Davids. Conejo buckwheat 5/0
ERDA4 Eriogonum davidsonii Greene Davidson's buckwheat 2/0
ERDE6 Eriogonum deflexum Torr. flatcrown buckwheat 1/0
ERDI10 Eriogonum diclinum Reveal Jaynes Canyon buckwheat 7/0
ERDOD Eriogonum douglasii Benth. var. douglasii Douglas' buckwheat 4/0
EREA2 Eriogonum eastwoodianum J.T. Howell Eastwood's buckwheat 2/0
EREF Eriogonum effusum Nutt. spreading buckwheat 0/1
ERELE Eriogonum elatum Dougl. ex Benth. var. elatum tall woolly buckwheat 5/0
EREP Eriogonum ephedroides Reveal ephedra buckwheat 3/0
ERFA2 Eriogonum fasciculatum Benth. Eastern Mojave buckwheat 6/1
ERFAF2 Eriogonum fasciculatum Benth. var. foliolosum (Nutt.) S. Stokes ex Abrams Eastern Mojave buckwheat 1/0
ERFAF5 Eriogonum fasciculatum Benth. ssp. foliolosum (Nutt.) S. Stokes   2/0
ERFAP Eriogonum fasciculatum Benth. var. polifolium (Benth.) Torr. & Gray Eastern Mojave buckwheat 7/0
ERFL4 Eriogonum flavum Nutt. alpine golden buckwheat 2/1
ERGI2 Eriogonum giganteum S. Wats. St. Catherine's lace 6/0
ERGI3 Eriogonum gilmanii S. Stokes Gilman's buckwheat 1/0
ERGO2 Eriogonum gossypinum Curran cottony buckwheat 6/0
ERGR11 Eriogonum gracilipes S. Wats. White Mountain buckwheat 3/0
ERGR6 Eriogonum gracillimum S. Wats. rose and white buckwheat 1/0
ERGR12 Eriogonum grande Greene redflower buckwheat 1/0
ERGRR Eriogonum grande Greene var. rubescens (Greene) Munz redflower buckwheat 4/0
ERGY Eriogonum gypsophilum Woot. & Standl. Seven River Hills buckwheat 5/0
ERHEH Eriogonum heermannii Dur. & Hilg. var. humilius (S. Stokes) Reveal Heermann's buckwheat 2/0
ERHES Eriogonum heermannii Dur. & Hilg. var. subracemosum (S. Stokes) Reveal Heermann's buckwheat 2/0
ERHE2 Eriogonum heracleoides Nutt. parsnipflower buckwheat 1/0
ERHEH3 Eriogonum heracleoides Nutt. var. heracleoides parsnipflower buckwheat 3/0
ERHOR Eriogonum hoffmannii S. Stokes var. robustius S. Stokes robust Hoffmann's buckwheat 1/0
ERHO5 Eriogonum holmgrenii Reveal Snake Range buckwheat 1/0
ERIN9 Eriogonum incanum Torr. & Gray frosted buckwheat 6/0
ERIN4 Eriogonum inflatum Torr. & Frém. desert trumpet 7/0
ERIND Eriogonum inflatum Torr. & Frém. var. deflatum I.M. Johnston desert trumpet 1/0
ERINI4 Eriogonum inflatum Torr. & Frém. var. inflatum desert trumpet 3/0
ERJA Eriogonum jamesii Benth. James' buckwheat 4/1
ERJAF Eriogonum jamesii Benth. var. flavescens S. Wats. James' buckwheat    
ERBA9 Eriogonum bakeri Greene   1/0
ERKEA2 Eriogonum kennedyi Porter ex S. Wats. var. austromontanum Munz & Johnston southern mountain buckwheat 2/0
ERKEK Eriogonum kennedyi Porter ex S. Wats. var. kennedyi Kennedy's buckwheat 3/0
ERKI Eriogonum kingii Torr. & Gray Ruby Mountain buckwheat 5/0
ERLA3 Eriogonum lachnogynum Torr. ex Benth. woollycup buckwheat 2/1
ERLA4 Eriogonum latens Jepson Inyo buckwheat 2/0
ERLA5 Eriogonum latifolium Sm. seaside buckwheat 8/0
ERLE13 Eriogonum lewisii Reveal Lewis' buckwheat 1/0
ERLO2 Eriogonum lobbii Torr. & Gray Lobb's buckwheat 4/0
ERLO5 Eriogonum longifolium Nutt. longleaf buckwheat 0/1
ERLU5 Eriogonum luteolum Greene goldencarpet buckwheat 2/0
ERMA2 Eriogonum maculatum Heller spotted buckwheat 2/0
ERMA4 Eriogonum marifolium Torr. & Gray marumleaf buckwheat 5/0
ERMI4 Eriogonum microthecum Nutt. slender buckwheat 3/1
ERMIA2 Eriogonum microthecum Nutt. var. ambiguum (M.E. Jones) Reveal slender buckwheat 2/0
ERMIL2 Eriogonum microthecum Nutt. var. laxiflorum Hook. slender buckwheat 2/0
ERMIS2 Eriogonum microthecum Nutt. var. simpsonii (Benth.) Reveal Simpson's buckwheat 2/0
ERMO4 Eriogonum molestum S. Wats. pineland buckwheat 2/0
ERMO9 Eriogonum mortonianum Reveal Fredonia buckwheat 1/0
ERNE8 Eriogonum nervulosum (S. Stokes) Reveal Snow Mountain buckwheat 1/0
ERNI4 Eriogonum nidularium Coville birdnest buckwheat 2/0
ERNI2 Eriogonum niveum Dougl. ex Benth. snow buckwheat 2/0
ERNUD Eriogonum nudum Dougl. ex Benth. var. decurrens (S. Stokes) M.L. Bowerman BenLomond buckwheat 2/0
ERNUI Eriogonum nudum Dougl. ex Benth. var. indictum (Jepson) Reveal protruding buckwheat 2/0
ERNUN Eriogonum nudum Dougl. ex Benth. var. nudum naked buckwheat 1/0
ERNUO Eriogonum nudum Dougl. ex Benth. var. oblongifolium S. Wats. naked buckwheat 2/0
ERNUP4 Eriogonum nudum Dougl. ex Benth. var. pubiflorum Benth. naked buckwheat 7/0
EROCA Eriogonum ochrocephalum S. Wats. var. alexandrae Reveal Alexander's buckwheat 2/0
EROCC Eriogonum ochrocephalum S. Watson var. calcareum (S. Stokes) M. Peck whitewoolly buckwheat 5/0
EROCO2 Eriogonum ochrocephalum S. Wats. var. ochrocephalum whitewoolly buckwheat 5/0
EROV Eriogonum ovalifolium Nutt. cushion buckwheat 22/0
EROVC Eriogonum ovalifolium Nutt. var. caelestinum Reveal cushion buckwheat 4/0
EROVD Eriogonum ovalifolium Nutt. var. depressum Blank. cushion buckwheat 2/0
EROVE Eriogonum ovalifolium Nutt. var. eximium (Tidestrom) J.T. Howell brownmargin buckwheat 2/0
EROVN Eriogonum ovalifolium Nutt. var. nivale (Canby) M.E. Jones cushion buckwheat 8/0
EROVO5 Eriogonum ovalifolium Nutt. var. ovalifolium cushion buckwheat 4/0
EROVP2 Eriogonum ovalifolium Nutt. var. purpureum (Nutt.) Dur. cushion buckwheat 2/0
EROVV Eriogonum ovalifolium Nutt. var. vineum (Small) Jepson Cushenbury buckwheat 2/0
EROVW Eriogonum ovalifolium Nutt. var. williamsiae Reveal Williams' buckwheat 4/0
ERPA8 Eriogonum parvifolium Sm. seacliff buckwheat 2/0
ERPA9 Eriogonum pauciflorum Pursh fewflower buckwheat 0/1
ERPAP6 Eriogonum pauciflorum Pursh var. pauciflorum fewflower buckwheat    
ERMU9 Eriogonum multiceps Nees   0/1
ERPE10 Eriogonum pelinophilum Reveal 3/0
ERPL3 Eriogonum plumatella Dur. & Hilg. yucca buckwheat 1/0
ERPO16 Eriogonum polyanthum Benth. sulphur-flower buckwheat    
ERUMP Eriogonum umbellatum Torr. var. polyanthum (Benth.) M.E. Jones   10/0
ERPU6 Eriogonum pusillum Torr. & Gray yellowturbans 3/0
ERPYC Eriogonum pyrolifolium Hook. var. coryphaeum Torr. & Gray Shasta buckwheat 2/0
ERRA3 Eriogonum racemosum Nutt. redroot buckwheat 5/0
ERRE3 Eriogonum reniforme Torr. & Frém. kidneyleaf buckwheat 2/0
ERRO10 Eriogonum robustum Greene granite buckwheat 7/0
ERRO Eriogonum rosense A. Nels. & Kennedy rosy buckwheat 2/0
ERRO2 Eriogonum rotundifolium Benth. roundleaf buckwheat 1/0
ERRU Eriogonum rubricaule Tidestrom redstem buckwheat 5/0
ERSA6 Eriogonum saxatile S. Wats. hoary buckwheat 4/0
ERSH Eriogonum shockleyi S. Wats. Shockley's buckwheat 1/0
ERSHP Eriogonum shockleyi S. Wats. var. packardiae Reveal   2/0
ERSHS Eriogonum shockleyi S. Watson var. shockleyi   1/0
ERSI5 Eriogonum siskiyouense Small Siskiyou buckwheat 5/0
ERSP5 Eriogonum spathulatum Gray spoonleaf buckwheat 2/0
ERSP7 Eriogonum sphaerocephalum Douglas ex Benth. rock buckwheat 2/0
ERSPS4 Eriogonum sphaerocephalum Dougl. ex Benth. var. sphaerocephalum rock buckwheat 2/0
ERST4 Eriogonum strictum Benth. Blue Mountain buckwheat 3/0
ERSTP Eriogonum strictum Benth. ssp. proliferum (Torr. & Gray) S. Stokes Blue Mountain buckwheat 3/0
ERSTA3 Eriogonum strictum Benth. ssp. proliferum (Torr. & Gray) S. Stokes var. anserinum (Greene) R.J. Davis Blue Mountain buckwheat 4/0
ERSTP3 Eriogonum strictum Benth. ssp. proliferum (Torr. & Gray) S. Stokes var. proliferum (Torr. & Gray) C.L. Hitchc. Blue Mountain buckwheat    
ERSTG4 Eriogonum strictum Benth. var. greenei (Gray) Reveal   2/0
ERSU5 Eriogonum subreniforme S. Wats. kidneyshape buckwheat 2/0
ERTE9 Eriogonum tenellum Torr. tall buckwheat 1/0
ERTHA2 Eriogonum thompsoniae S. Wats. var. atwoodii Reveal Atwood's buckwheat 1/0
ERTH4 Eriogonum thymoides Benth. thymeleaf buckwheat 2/0
ERTR8 Eriogonum trichopes Torr. little deserttrumpet 2/0
ERUM Eriogonum umbellatum Torr. sulphur-flower buckwheat 4/0
ERUMB Eriogonum umbellatum Torr. var. bahiiforme (Torr. & Gray) Jepson sulphur-flower buckwheat 2/0
ERUMC2 Eriogonum umbellatum Torr. var. chlorothamnus Reveal sulphur-flower buckwheat 2/0
ERUMD3 Eriogonum umbellatum Torr. var. dichrocephalum Gandog. sulphur-flower buckwheat 3/0
ERUME Eriogonum umbellatum Torr. var. ellipticum (Nutt.) Reveal sulphur-flower buckwheat 4/0
ERUMG Eriogonum umbellatum Torr. var. glaberrimum (Gandog.) Reveal green buckwheat 3/0
ERUMH Eriogonum umbellatum Torr. var. hausknechtii (Dammer) M.E. Jones Hausknecht's buckwheat 2/0
ERUMH2 Eriogonum umbellatum Torr. var. humistratum Reveal Mt. Eddy buckwheat 2/0
ERUMM Eriogonum umbellatum Torr. var. majus Hook. sulphur-flower buckwheat    
ERSU11 Eriogonum subalpinum Greene   1/0
ERUMM2 Eriogonum umbellatum Torr. var. minus I.M. Johnston alpine sulphur-flower buckwheat 6/0
ERUMM9 Eriogonum umbellatum Torr. var. modocense (Greene) S. Stokes sulphur-flower buckwheat 4/0
ERUMN Eriogonum umbellatum Torr. var. nevadense Gandog. sulphur-flower buckwheat 7/0
ERUMU2 Eriogonum umbellatum Torr. var. umbellatum sulphur-flower buckwheat 6/0
ERUMV2 Eriogonum umbellatum Torr. var. versicolor S. Stokes sulphur-flower buckwheat 7/0
ERUR3 Eriogonum ursinum S. Wats. Bear Valley buckwheat 4/0
ERVI5 Eriogonum vimineum Dougl. ex Benth. wickerstem buckwheat 4/0
ERVI7 Eriogonum viscidulum J.T. Howell sticky buckwheat 5/0
ERWR Eriogonum wrightii Torr. ex Benth. bastardsage 3/0
ERWRS Eriogonum wrightii Torr. ex Benth. var. subscaposum S. Wats. bastardsage 4/0
ERWRS2 Eriogonum wrightii Torr. ex Benth. ssp. subscaposum (S. Wats.) S. Stokes   2/0
ERZIC Eriogonum zionis J.T. Howell var. coccineum J.T. Howell Zion buckwheat 2/0
ERAV Erioneuron avenaceum (Kunth) Tateoka shortleaf woollygrass    
TRGR9 Tridens grandiflorus (Vasey) Woot. & Standl.   0/1
ERNE9 Erioneuron nealleyi (Vasey) Tateoka Nealley's woollygrass    
TRNE5 Tridens nealleyi (Vasey) Woot. & Standl.   0/1
ERPI5 Erioneuron pilosum (Buckl.) Nash hairy woollygrass 0/1
TRPI6 Tridens pilosus (Buckl.) A.S. Hitchc.   0/1
ERAN6 Eriophorum angustifolium Honckeny tall cottongrass 2/3
ERANA3 Eriophorum angustifolium Honck. ssp. angustifolium tall cottongrass    
ERANS Eriophorum angustifolium Honckeny ssp. scabriusculum Hultén   2/0
ERPO6 Eriophorum polystachion L. p.p.   1/0
ERBRB6 Eriophorum brachyantherum Trautv. & C.A. Mey. var. brachyantherum northland cottonsedge    
EROP3 Eriophorum opacum (Björnstr.) Fern.   0/1
ERCA13 Eriophorum callitrix Cham. ex C.A. Mey. arctic cottongrass 0/1
ERCH7 Eriophorum chamissonis C.A. Mey. Chamisso's cottongrass 0/1
ERGR8 Eriophorum gracile W.D.J. Koch slender cottongrass 1/1
ERGRC2 Eriophorum gracile W.D.J. Koch var. caurianum Fern. slender cottongrass 1/0
ERSC2 Eriophorum scheuchzeri Hoppe white cottongrass 1/1
ERTE12 Eriophorum tenellum Nutt. fewnerved cottongrass 0/1
ERVA4 Eriophorum vaginatum L. tussock cottongrass 1/0
ERVAS Eriophorum vaginatum L. var. spissum (Fern.) Boivin tussock cottongrass    
ERSP8 Eriophorum spissum Fern.   1/0
ERVI8 Eriophorum virginicum L. tawny cottongrass 7/2
ERVI9 Eriophorum viridicarinatum (Engelm.) Fern. thinleaf cottonsedge 2/2
ERIOP2 Eriophyllum Lag. woolly sunflower 6/0
ERCO25 Eriophyllum confertiflorum (DC.) Gray golden-yarrow 4/0
ERLA6 Eriophyllum lanatum (Pursh) Forbes common woolly sunflower 3/0
ERLAA Eriophyllum lanatum (Pursh) Forbes var. achillaeoides (DC.) Jepson common woolly sunflower 3/0
ERLAI Eriophyllum lanatum (Pursh) Forbes var. integrifolium (Hook.) Smiley common woolly sunflower 1/0
ERLAL3 Eriophyllum lanatum (Pursh) Forbes var. lanatum common woolly sunflower 1/0
ERMU6 Eriophyllum multicaule (DC.) Gray manystem woolly sunflower 3/0
ERPR4 Eriophyllum pringlei Gray Pringle's woolly sunflower 3/0
ERST9 Eriophyllum stoechadifolium Lag. seaside woolly sunflower 2/0
ERNA Eritrichium nanum (Vill.) Schrad. ex Gaudin arctic alpine forget-me-not 2/0
ERLAN2 Erlangea Sch. Bip. erlangea 1/0
ERCI9 Erodium ciconium (L.) L'Hér. ex Aiton common stork's bill 1/0
ERCI6 Erodium cicutarium (L.) L'Hér. ex Ait. redstem stork's bill 7/1
ERMAC Erodium macrophyllum Hook. & Arn. var. californicum (Greene) Jepson California stork's bill 2/0
ERMO7 Erodium moschatum (L.) L'Hér. ex Ait. musky stork's bill 1/0
ERTE13 Erodium texanum Gray Texas stork's bill 12/0
ERVE5 Eruca vesicaria (L.) Cav. rocketsalad 2/0
ERVES Eruca vesicaria (L.) Cav. ssp. sativa (P. Mill.) Thellung rocketsalad    
ERER10 Eruca eruca (L.) Aschers. & Graebn.   0/1
ERSA7 Eruca sativa P. Mill.   1/0
ERYNG Eryngium L. eryngo 1/0
ERAL8 Eryngium alismifolium Greene Modoc eryngo 1/0
ERAQ Eryngium aquaticum L. rattlesnakemaster 5/1
ERAQA Eryngium aquaticum L. var. aquaticum rattlesnakemaster    
ERVI11 Eryngium virginianum Lam.   1/1
ERARP Eryngium aristulatum Jepson var. parishii (Coult. & Rose) Mathias & Constance Parish's eryngo 2/0
ERHO9 Eryngium hookeri Walp. Hooker's eryngo 1/0
ERIN6 Eryngium integrifolium Walt. blueflower eryngo 3/0
ERLE11 Eryngium leavenworthii Torr. & Gray Leavenworth's eryngo 2/1
ERPL5 Eryngium planum L. plains eryngo 1/0
ERPR5 Eryngium prostratum Nutt. ex DC. creeping eryngo 2/1
ERYU Eryngium yuccifolium Michx. button eryngo 5/1
ERAS2 Erysimum asperum (Nutt.) DC. western wallflower 2/0
CHAS6 Cheirinia aspera (Nutt.) Britt.   0/1
ERCA14 Erysimum capitatum (Dougl. ex Hook.) Greene sanddune wallflower 12/0
ERCAA Erysimum capitatum (Dougl. ex Hook.) Greene var. angustatum (Greene) G. Rossb. Contra Costa wallflower 4/0
ERCAC Erysimum capitatum (Dougl. ex Hook.) Greene var. capitatum sanddune wallflower 1/0
ERCAP Erysimum capitatum (Dougl. ex Hook.) Greene var. perenne (S. Wats. ex Coville) R.J. Davis sanddune wallflower 2/0
ERCH9 Erysimum cheiranthoides L. wormseed wallflower 1/0
CHCH10 Cheirinia cheiranthoides (L.) Link   0/1
ERINI6 Erysimum inconspicuum (S. Wats.) MacM. var. inconspicuum shy wallflower    
CHIN12 Cheirinia inconspicua (S. Wats.) Britt.   0/1
ERIN8 Erysimum insulare Greene island wallflower 1/0
ERMA17 Erysimum ×marshallii (Henfr.) Bois Siberian wallflower    
CHAL22 Cheiranthus allionii hort. ex Bois   1/0
ERME5 Erysimum menziesii (Hook.) Wettst. Menzies' wallflower 7/0
ERMEC2 Erysimum menziesii (Hook.) Wettst. ssp. concinnum (Eastw.) Price curly wallflower    
ERCO26 Erysimum concinnum Eastw.   4/0
ERRE4 Erysimum repandum L. spreading wallflower    
CHRE5 Cheirinia repanda (L.) Link   0/1
ERYTH Erythrina L. erythrina 2/0
ERAB6 Erythrina abyssinica Lam. ex DC. erythrina 3/0
ERCO22 Erythrina corallodendron L. coral erythrina 1/0
ERCR6 Erythrina crista-galli L. crybabytree 3/0
ERFL7 Erythrina flabelliformis Kearney coralbean 4/0
ERFU2 Erythrina fusca Lour. bucayo    
ERCA39 Erythrina caffra Thunb.   7/0
ERHE4 Erythrina herbacea L. redcardinal 3/0
ERVA7 Erythrina variegata L. tiger's claw 1/0
ERSP19 Erythrochlamys spectabilis Guerke 1/0
ERYTH3 Erythronium L. fawnlily 1/0
ERAL9 Erythronium albidum Nutt. white fawnlily 7/1
ERAM5 Erythronium americanum Ker-Gawl. dogtooth violet 7/1
ERCA15 Erythronium californicum Purdy California fawnlily 4/0
ERGR9 Erythronium grandiflorum Pursh yellow avalanche-lily 7/0
ERGRG3 Erythronium grandiflorum Pursh ssp. grandiflorum yellow avalanche-lily 2/0
ERME15 Erythronium mesochoreum Knerr midland fawnlily 0/1
ERMO8 Erythronium montanum S. Wats. white avalanche-lily 4/0
ERMU7 Erythronium multiscapoideum (Kellogg) A. Nels. & Kennedy Sierra fawnlily 9/0
ERPR6 Erythronium propullans Gray Minnesota fawnlily 0/1
ERPU7 Erythronium purpurascens S. Wats. purple fawnlily 6/0
ERRE5 Erythronium revolutum Sm. mahogany fawnlily 2/0
ERRO5 Erythronium rostratum W. Wolf yellow troutlily 4/0
ERTU Erythronium tuolumnense Applegate Tuolumne fawnlily 5/0
ERAR17 Erythroxylum areolatum L. swamp-redwood 2/0
ERBR11 Erythroxylum brevipes DC. brisselet 2/0
ERCO41 Erythroxylum coca Lam. coca 4/0
ERRO3 Erythroxylum rotundifolium Lunan ratwood 2/0
ERUR4 Erythroxylum urbanii O.E. Schulz Urban's false cocaine 1/0
ESRU4 Escallonia rubra (Ruiz & Pavón) Pers. redclaws 1/0
ESRUM Escallonia rubra (Ruiz & Pavón) Pers. var. macrantha (Hook. & Arn.) Reiche redclaws 1/0
ESCHS Eschscholzia Cham. California poppy 4/0
ESCA Eschscholzia caespitosa Benth. tufted poppy 7/0
ESCA2 Eschscholzia californica Cham. California poppy 20/0
ESCAM Eschscholzia californica Cham. ssp. mexicana (Greene) C. Clark California poppy 11/0
ESME Eschscholzia mexicana Greene   4/0
ESGL Eschscholzia glyptosperma Greene desert poppy 4/0
ESHY Eschscholzia hypecoides Benth. San Benito poppy 2/0
ESLO Eschscholzia lobbii Greene fryingpans 6/0
ESMI Eschscholzia minutiflora S. Wats. pygmy poppy 5/0
ESRA Eschscholzia ramosa Greene Channel Island poppy 4/0
ESAL2 Escobaria alversonii (Coult.) N.P. Taylor cushion foxtail cactus    
MAAL9 Mammillaria alversonii (Coult.) Coult. ex Zeissold   1/0
ESHE Escobaria hesteri (Y. Wright) Buxbaum Hester's foxtail cactus    
COHE5 Coryphantha hesteri Y. Wright   8/0
ESMI2 Escobaria minima (Baird) D.R. Hunt Nellie cory cactus    
COMI4 Coryphantha minima Baird   1/0
ESMI3 Escobaria missouriensis (Sweet) D.R. Hunt Missouri foxtail cactus    
COMI5 Coryphantha missouriensis (Sweet) Britt. & Rose   0/1
ESOR Escobaria orcuttii Bödecker Orcutt's foxtail cactus 3/0
ESSNL Escobaria sneedii Britt. & Rose var. leei (Rose ex Bödecker) D.R. Hunt Sneed's pincushion cactus 4/0
ESSNS Escobaria sneedii Britt. & Rose var. sneedii Sneed's pincushion cactus 3/0
COSN Coryphantha sneedii (Britt. & Rose) Berger   1/0
ESTU Escobaria tuberculosa (Engelm.) Britt. & Rose whitecolumn foxtail cactus    
COST7 Coryphantha strobiliformis auct. non (Poselg.) Orcutt [misapplied]   3/0
ESVI2 Escobaria vivipara (Nutt.) Buxbaum spinystar 6/0
ESVID Escobaria vivipara (Nutt.) Buxbaum var. deserti (Engelm.) D.R. Hunt desert spinystar    
MAVID Mammillaria vivipara (Nutt.) Haw. var. deserti (Engelm.) Weniger   1/0
ESVIR Escobaria vivipara (Nutt.) Buxbaum var. radiosa (Engelm.) D.R. Hunt spinystar 1/0
ESVIR2 Escobaria vivipara (Nutt.) Buxbaum var. rosea (Clokey) D.R. Hunt spinystar 7/0
ESVIV Escobaria vivipara (Nutt.) Buxbaum var. vivipara spinystar 1/0
COVI9 Coryphantha vivipara (Nutt.) Britt. & Rose   2/1
ESSC Espeletia schultzii Wedd. 6/0
ETEL Etlingera elatior (Jack) R.M. Sm. torch-ginger 1/0
PHMA27 Phaeomeria magnifica (Roscoe) K. Schum.   2/0
EURA5 Eubotrys racemosa (L.) Nutt. swamp doghobble 1/1
LERA4 Leucothoe racemosa (L.) Gray   6/1
EURE10 Eubotrys recurva (Buckl.) Britt. redtwig doghobble 0/1
LERE6 Leucothoe recurva (Buckl.) Gray   1/0
EUCAL Eucalyptus L'Hér. gum 7/1
EUCA2 Eucalyptus camaldulensis Dehnhardt river redgum 1/0
EURO11 Eucalyptus rostrata Schltdl.   1/0
EUGL Eucalyptus globulus Labill. Tasmanian bluegum 7/0
EUGLM Eucalyptus globulus Labill. ssp. maidenii (F. Muell.) J.B. Kirkpat. Tasmanian bluegum 2/0
EUGR12 Eucalyptus grandis W. Hill ex Maid. grand eucalyptus 1/0
EULE9 Eucalyptus lehmannii (Schauer) Benth. bushy yate 2/0
EULE13 Eucalyptus leucoxylon F. Muell. white ironbark 1/0
EUMA21 Eucalyptus macrocarpa Hook. mottlecah 1/0
EUMA23 Eucalyptus maculata Hook. spotted gum 1/0
EUMA4 Eucalyptus marginata Donn ex Sm. jarrah 2/0
EUMI Eucalyptus microcorys F. Muell. Australian tallowwood 1/0
EURO2 Eucalyptus robusta Sm. swampmahogany 2/0
EURU2 Eucalyptus rudis Sm. Western Australian floodedgum 0/1
EUSA Eucalyptus saligna Sm. Sydney bluegum 1/0
EUTE Eucalyptus tereticornis Sm. forest redgum 2/0
EUBR12 Eucephalus breweri (Gray) Nesom Brewer's aster 1/0
CHBR8 Chrysopsis breweri Gray   1/0
EUEN Eucephalus engelmannii (D.C. Eat.) Greene Engelmann's aster 4/0
ASEN2 Aster engelmannii (D.C. Eat.) Gray   1/0
EUGL11 Eucephalus glaucescens (Gray) Greene Klickitat aster 1/0
EULEL2 Eucephalus ledophyllus (Gray) Greene var. ledophyllus Cascade aster 2/0
EUPA22 Eucephalus paucicapitatus (B.L. Robins.) Greene Olympic Mountain aster 2/0
EUGR7 Eucharis grandiflora Planch. & Linden Amazonlily 2/0
EUVE6 Eucladium verticillatum (Brid.) Bruch & Schimp. in B.S.G. eucladium moss 7/0
EUCNI Eucnide Zucc. stingbush 3/0
EUBA3 Eucnide bartonioides Zucc. yellow stingbush 2/0
EUUR Eucnide urens (Parry ex Gray) Parry desert stingbush 2/0
EUCO40 Eucryphia cordifolia Cav. ulmo 3/0
EUMI2 Eucrypta micrantha (Torr.) Heller dainty desert hideseed 1/0
EUAP Eugenia apiculata DC. shortleaf stopper    
LUAP4 Luma apiculata (DC.) Burret   3/0
MYAP3 Myrceugenia apiculata (DC.) Nied.   2/0
EUBI Eugenia biflora (L.) DC. blackrodwood 2/0
EUBO4 Eugenia borinquensis Britt. guayabota de sierra 1/0
EUCO5 Eugenia cordata (Sw.) DC. lathberry 1/0
EUEA Eugenia earhartii Acev.-Rodr. Earhart's stopper 1/0
EUGL6 Eugenia glabrata (Sw.) DC. smooth rodwood 1/0
EUMO Eugenia monticola (Sw.) DC. birdcherry 2/0
EUPR4 Eugenia procera (Sw.) Poir. rockmyrtle 1/0
EUPS Eugenia pseudopsidium Jacq. Christmas cherry 2/0
EURH Eugenia rhombea Krug & Urban red stopper 1/0
EUSE10 Eugenia sessiliflora Vahl sessileleaf stopper 2/0
EUUN2 Eugenia uniflora L. Surinam cherry 1/0
EUWO2 Eugenia woodburyana Alain Woodbury's stopper 1/0
EUBI10 Eulaliopsis binata (Retz.) C. E. Hubb. sabaigrass 2/0
EUONY2 Euonymus L. spindletree 4/1
EUAL13 Euonymus alatus (Thunb.) Sieb. burningbush    
EUAL8 Euonymus alata (Thunb.) Sieb. [orthographic variant]   2/0
EUAM9 Euonymus americanus L. bursting-heart 1/1
EUAM7 Euonymus americana L. [orthographic variant]   6/1
EUAT5 Euonymus atropurpureus Jacq. burningbush 0/1
EUAT3 Euonymus atropurpurea Jacq. [orthographic variant]   2/1
EUBU5 Euonymus bungeanus Maxim. winterberry euonymus    
EUBU6 Euonymus bungeanum Maxim. [orthographic variant]   4/0
EUEU7 Euonymus europaeus L. European spindletree    
EUEU4 Euonymus europaea L. [orthographic variant]   3/2
EUOB8 Euonymus obovatus Nutt. running strawberry bush    
EUOB9 Euonymus obovata Nutt. [orthographic variant]   0/1
EUPA21 Euonymus patens Rehder spindle tree 1/0
EUDU2 Eupatoriadelphus dubius (Willd. ex Poir.) King & H.E. Robins. coastal plain joepyeweed    
EUDU Eupatorium dubium Willd. ex Poir.   2/0
EUFI2 Eupatoriadelphus fistulosus (Barratt) King & H.E. Robins. trumpetweed    
EUFI Eupatorium fistulosum Barratt   3/1
EUMA12 Eupatoriadelphus maculatus (L.) King & H.E. Robins. spotted trumpetweed 1/0
EUMAB Eupatoriadelphus maculatus (L.) King & H.E. Robins. var. bruneri (Gray) King & H.E. Robins. spotted joepyeweed    
EUBR4 Eupatorium bruneri Gray   0/1
EUMAM3 Eupatoriadelphus maculatus (L.) King & H.E. Robins. var. maculatus spotted trumpetweed    
EUMA6 Eupatorium maculatum L.   1/2
EUAL2 Eupatorium album L. white thoroughwort 2/1
EUAL3 Eupatorium altissimum L. tall thoroughwort 3/1
EUCA5 Eupatorium capillifolium (Lam.) Small dogfennel 4/2
EUHY Eupatorium hyssopifolium L. hyssopleaf thoroughwort 3/1
EUHYH Eupatorium hyssopifolium L. var. hyssopifolium hyssopleaf thoroughwort    
EUTO6 Eupatorium torreyanum Short & Peter   1/1
EULA7 Eupatorium lancifolium (Torr. & Gray) Small lanceleaf thoroughwort    
EUSEL Eupatorium semiserratum DC. var. lancifolium Torr. & Gray   1/0
EULE Eupatorium leucolepis (DC.) Torr. & Gray justiceweed 1/1
EUPE3 Eupatorium perfoliatum L. common boneset 6/2
EUPU10 Eupatorium purpureum L. sweetscented joepyeweed 0/2
EUPUP Eupatorium purpureum L. var. purpureum sweetscented joepyeweed    
EUPU8 Eupatoriadelphus purpureus (L.) King & H.E. Robins.   1/0
EURE8 Eupatorium resinosum Torr. ex DC. pine barren thoroughwort 3/1
EURO4 Eupatorium rotundifolium L. roundleaf thoroughwort 4/2
EUROO Eupatorium rotundifolium L. var. ovatum (Bigelow) Torr. roundleaf thoroughwort    
EUPU11 Eupatorium pubescens Muhl. ex Willd.   0/1
EUROR Eupatorium rotundifolium L. var. rotundifolium roundleaf thoroughwort    
EUVE4 Eupatorium verbenifolium Reichard   0/1
EUSE Eupatorium semiserratum DC. smallflower thoroughwort 0/1
EUSE2 Eupatorium serotinum Michx. lateflowering thoroughwort 2/1
EUSE3 Eupatorium sessilifolium L. upland boneset 2/1
EUSO3 Eupatorium sordidum Less. [excluded] 2/0
EUPHO Euphorbia L. spurge 4/0
EUAN3 Euphorbia antisyphilitica Zucc. candelilla 1/0
EUBI2 Euphorbia bicolor Engelm. & Gray snow on the prairie 3/0
EUBI3 Euphorbia bifurcata Engelm. forked spurge 2/0
EUBR Euphorbia brachycera Engelm. horned spurge    
EURO5 Euphorbia robusta (Engelm.) Small ex. Britt. & Br.   1/0
TIBR Tithymalus brachycera (Engelm.) Small   4/0
TIRO2 Tithymalus robustus (Engelm.) Small   0/1
EUBR16 Euphorbia breoni Nois. 4/0
EUCA29 Euphorbia candelabrum Kotschy 2/0
EUCO8 Euphorbia commutata Engelm. ex Gray tinted woodland spurge    
TICO3 Tithymalus commutatus (Engelm. ex Gray) Klotzsch & Garcke   0/1
EUCO41 Euphorbia cooperi N.E. Br. ex A. Berger candelabra Tree 3/0
EUCO10 Euphorbia corollata L. flowering spurge 7/0
TICO4 Tithymalopsis corollata (L.) Klotzsch   0/1
TIMA2 Tithymalopsis marilandica (Greene) Small   0/1
EUCO24 Euphorbia cotinifolia L. Mexican shrubby spurge 1/0
EUCU9 Euphorbia cuphosperma (Engelm.) Boiss. 2/0
POCU8 Poinsettia cuphosperma Engelm.   0/1
EUCY Euphorbia cyathophora Murr. fire on the mountain 2/0
EUCY2 Euphorbia cyparissias L. cypress spurge 2/0
TICY Tithymalus cyparissias (L.) Hill   0/1
EUDE4 Euphorbia dentata Michx. toothed spurge 2/0
EUDED Euphorbia dentata Michx. var. dentata toothed spurge    
PODE7 Poinsettia dentata (Michx.) Klotzsch & Garcke   0/1
EUESE Euphorbia esula L. var. esula leafy spurge    
TIES Tithymalus esula (L.) Hill   0/1
EUEX4 Euphorbia exstipulata Engelm. squareseed spurge 2/0
EUFU4 Euphorbia fulgens Karw. Ex Klotzsch scarlet-plume 1/0
EUHE2 Euphorbia helioscopia L. madwoman's milk 1/0
TIHE3 Tithymalus helioscopius (L.) Hill   0/1
EUHE4 Euphorbia heterophylla L. Mexican fireplant 4/0
POHE11 Poinsettia heterophylla (L.) Klotzsch & Garcke   0/1
EUHE5 Euphorbia hexagona Nutt. ex Spreng. sixangle spurge    
ZYHE Zygophyllidium hexagonum (Nutt. ex Spreng.) Small   0/1
EUIP Euphorbia ipecacuanhae L. American ipecac 1/0
TIAR2 Tithymalopsis arundelana (Bartlett) Small   0/1
TIIP Tithymalopsis ipecacuanhae (L.) Small   0/1
EULA8 Euphorbia lactea Haw. mottled spurge 4/0
EULA4 Euphorbia lathyris L. moleplant 1/0
TILA3 Tithymalus lathyris (L.) Hill   0/1
EULE6 Euphorbia leucocephala Lotsy pascuita 1/0
EULU2 Euphorbia lucida Waldst. & Kit. shining spurge    
TILU2 Tithymalus lucidus (Waldst. & Kit.) Klotzsch & Garcke   0/1
EUMA8 Euphorbia marginata Pursh snow on the mountain 7/0
DIMA13 Dichrophyllum marginatum (Pursh) Klotzsch & Garcke   0/1
EUMI9 Euphorbia milii Des Moulins christplant 2/0
EUMI4 Euphorbia misera Benth. cliff spurge 2/0
EUMY2 Euphorbia myrsinites L. myrtle spurge 3/0
EUOE2 Euphorbia oerstediana (Klotzsch & Garcke) Boiss. West Indian spurge 1/0
EUPA25 Euphorbia palustris L. 1/0
EUPE6 Euphorbia peplus L. petty spurge 1/0
TIPE2 Tithymalus peplus (L.) Hill   0/1
EUPE8 Euphorbia petiolaris Sims manchineel berry 1/0
EUPL Euphorbia platyphyllos L. broadleaf spurge    
TIPL3 Tithymalus platyphyllos (L.) Hill   0/1
EUPU7 Euphorbia pubentissima Michx. false flowering spurge 1/0
EUZI Euphorbia zinniiflora Small   3/0
EUPU9 Euphorbia pulcherrima Willd. ex Klotzsch poinsettia 3/0
EUPU4 Euphorbia purpurea (Raf.) Fern. Darlington's glade spurge 5/0
TIDA Tithymalus darlingtonii (Gray) Small   0/1
EUSC6 Euphorbia schizoloba Engelm. Mojave spurge    
EUIN2 Euphorbia incisa Engelm.   2/0
EUSE12 Euphorbia serrata L. serrate spurge 1/0
EUSP Euphorbia spathulata Lam. warty spurge    
TIAR3 Tithymalus arkansanus (Engelm. & Gray) Klotzsch & Garcke   0/1
TIMI2 Tithymalus missouriensis (J.B.S. Norton) Small   0/1
TIOB2 Tithymalus obtusatus (Pursh) Klotzsch & Garcke   0/1
EUTE6 Euphorbia telephioides Chapman telephus spurge 1/0
EUTE10 Euphorbia terracina L. Geraldton carnation weed 1/0
EUTI Euphorbia tirucalli L. Indiantree spurge 5/0
EUVA5 Euphorbia valida N.E. Br. 1/0
EUWO5 Euphorbia woodii N.E. Br. 1/0
EUNE3 Euphrasia nemorosa (Pers.) Wallr. common eyebright 1/0
EUAM6 Euphrasia americana auct. p.p.   0/1
EUOA Euphrasia oakesii Wettst. Oakes' eyebright 0/1
EURA3 Euphrasia randii B.L. Robins. small eyebright 0/1
EUHI5 Eurhynchium hians (Hedw.) Sande Lac. eurhynchium moss 4/0
EUPR7 Eurhynchium praelongum (Hedw.) Schimp. in B.S.G. eurhynchium moss 3/0
EUPU15 Eurhynchium pulchellum (Hedw.) Jenn. eurhynchium moss 8/0
EUCO37 Eurybia compacta Nesom slender aster    
ASGR7 Aster gracilis Nutt.   1/1
EUCO36 Eurybia conspicua (Lindl.) Nesom western showy aster    
ASCO3 Aster conspicuus Lindl.   2/0
EUDI16 Eurybia divaricata (L.) Nesom white wood aster    
ASCA18 Aster carmesinus Burgess   0/1
ASCL4 Aster claytonii Burgess   0/1
ASDI Aster divaricatus L.   1/1
ASTE17 Aster tenebrosus Burgess   0/1
EUFU3 Eurybia furcata (Burgess) Nesom forked aster    
ASFU Aster furcatus Burgess   0/1
EUGL19 Eurybia glauca (Nutt.) Nesom gray aster    
ASGL3 Aster glaucodes Blake   2/0
EUGL13 Eucephalus glaucus Nutt.   4/0
EUHE10 Eurybia hemispherica (Alexander) G.L. Nesom southern prairie aster 5/0
EUHE9 Eurybia ×herveyi (Gray) Nesom [macrophylla × spectabilis]    
ASHE8 Aster ×herveyi Gray (pro sp.) [not hybrid]   0/1
EUIN9 Eurybia integrifolia (Nutt.) Nesom thickstem aster 3/0
EUMA27 Eurybia macrophylla (L.) Cass. bigleaf aster    
ASIA Aster ianthinus Burgess   0/1
ASMA2 Aster macrophyllus L.   1/1
ASMU6 Aster multiformis Burgess   0/1
ASNO5 Aster nobilis Burgess   0/1
ASRO3 Aster roscidus Burgess   0/1
ASVI14 Aster violaris Burgess   0/1
EUPA23 Eurybia paludosa (Ait.) Nesom southern swamp aster    
ASPA2 Aster paludosus Ait.   2/1
EURA10 Eurybia radula (Ait.) Nesom low rough aster    
ASRA8 Aster radula Ait.   0/1
EURA11 Eurybia radulina (Gray) Nesom roughleaf aster 1/0
EUSA15 Eurybia saxicastellii (J.N. Campbell & M. Medley) Nesom rockcastle aster 2/0
ASSA9 Aster saxicastellii J. Campbell & M. Medley   1/0
EUSC5 Eurybia schreberi (Nees) Nees Schreber's aster    
ASCU12 Aster curvescens Burgess   0/1
ASGL11 Aster glomeratus (Bernh. ex Nees) Burgess   0/1
ASSC2 Aster schreberi Nees   0/1
EUSP3 Eurybia spectabilis (Ait.) Nesom eastern showy aster    
ASSP11 Aster spectabilis Ait.   1/1
EUSU7 Eurybia surculosa (Michx.) Nesom creeping aster    
ASSU9 Aster surculosus Michx.   1/1
EUMU Euryops multifidus (Thunb.) DC. hawk's eye 1/0
EUDI8 Eustachys distichophylla (Lag.) Nees weeping fingergrass    
CHDI Chloris distichophylla Lag.   1/0
EUFL3 Eustachys floridana Chapman twospike fingergrass    
CHFL7 Chloris floridana (Chapman) Wood   0/1
EUGL5 Eustachys glauca Chapman saltmarsh fingergrass    
CHGL11 Chloris glauca (Chapman) Wood   2/1
EUNE Eustachys neglecta (Nash) Nash fourspike fingergrass    
CHNE10 Chloris neglecta Nash   0/1
EUPAC Eustachys paspaloides (Vahl) Lanza & Mattei ssp. caribaea (Spreng.) Nowack Caribbean fingergrass    
CHCA13 Chloris capensis auct. non (Houtt.) Thellung [misapplied]   2/0
CHCA81 Chloris caribaea Spreng.   2/0
EUPE9 Eustachys petraea (Sw.) Desv. pinewoods fingergrass 1/0
CHPE8 Chloris petraea Sw.   0/1
EURE5 Eustachys retusa (Lag.) Kunth Argentine fingergrass    
CHAR10 Chloris argentina (Hack.) Lillo & Parodi   2/0
EUEX5 Eustoma exaltatum (L.) Salisb. ex G. Don catchfly prairie gentian 3/0
EUEXR Eustoma exaltatum (L.) Salisb. ex G. Don ssp. russellianum (Hook.) Kartesz showy prairie gentian    
EURU4 Eustoma russellianum (Hook.) G. Don   4/1
EUCA26 Euthamia caroliniana (L.) Greene ex Porter & Britt. slender goldentop    
EUMI6 Euthamia minor (Michx.) Greene   0/1
EUTE7 Euthamia tenuifolia (Pursh) Nutt.   2/1
SOTE5 Solidago tenuifolia Pursh   6/0
EUGR5 Euthamia graminifolia (L.) Nutt. flat-top goldentop 1/2
EUGRG Euthamia graminifolia (L.) Nutt. var. graminifolia flat-top goldentop    
EUFL5 Euthamia floribunda Greene   0/1
SOGR8 Solidago graminifolia (L.) Salisb.   1/0
EUGY Euthamia gymnospermoides Greene Texas goldentop 1/1
EULE4 Euthamia leptocephala (Torr. & Gray) Greene bushy goldentop 1/1
EVPR Evax prolifera Nutt. ex DC. bighead pygmycudweed    
FIPR Filago prolifera (Nutt. ex DC.) Britt., non Pomel   0/1
EVAR Evolvulus arizonicus Gray wild dwarf morning-glory 4/0
EVCO Evolvulus convolvuloides (Willd. ex J.A. Schultes) Stearn bindweed dwarf morning-glory 2/0
EVNU2 Evolvulus nummularius (L.) L. agracejo rastrero 1/0
EVNU Evolvulus nuttallianus J.A. Schultes shaggy dwarf morning-glory    
EVPI Evolvulus pilosus Nutt.   0/1
EVSE Evolvulus sericeus Sw. silver dwarf morning-glory 1/0
EVSQ Evolvulus squamosus Britt. rockyplains dwarf morning-glory 1/0
EXRA Exochorda racemosa (Lindl.) Rehd. common pearlbrush 5/0
EXPA Exothea paniculata (Juss.) Radlk. butterbough 1/0
EYOR Eysenhardtia orthocarpa (A. Gray) S. Watson Tahitian kidneywood 2/0
EYTE Eysenhardtia texana Scheele Texas kidneywood 6/0
FACI2 Fabronia ciliaris (Brid.) Brid. fabronia moss 5/0
FAPU Fabronia pusilla Raddi fabronia moss 4/0
FALA Fagonia laevis Standl. California fagonbush 2/0
FAES2 Fagopyrum esculentum Moench buckwheat 1/0
FAFA Fagopyrum fagopyrum (L.) Karst.   0/1
FATA Fagopyrum tataricum (L.) Gaertn. Tartary buckwheat 1/1
FAGUS Fagus L. beech 1/0
FAGR Fagus grandifolia Ehrh. American beech 9/3
FASY Fagus sylvatica L. European beech 3/0
FAAL Faidherbia albida (Del.) A. Chev. applering acacia    
ACAL15 Acacia albida Del.   2/0
FALLU Fallugia Endl. Apache plume 1/0
FAPA Fallugia paradoxa (D. Don) Endl. ex Torr. Apache plume 18/1
FAVI Fatoua villosa (Thunb.) Nakai hairy crabweed 1/0
FAJA Fatsia japonica (Thunb.) Decne. & Planch. paperplant 5/0
FESE2 Feijoa sellowiana (O. Berg) O. Berg feijoa 2/0
FERI2 Fendlera rigida I.M. Johnst. stiff fendlerbush    
FELI2 Fendlera linearis auct. non Rehder   1/0
FERU Fendlera rupicola Gray cliff fendlerbush 7/0
FEUT Fendlerella utahensis (S. Wats.) Heller Utah fendlerbush 4/0
FEROC Ferocactus Britt. & Rose barrel cactus 2/0
FECYC Ferocactus cylindraceus (Engelm.) Orcutt var. cylindraceus California barrel cactus    
FEAC Ferocactus acanthodes (Lem.) Britt. & Rose   6/0
FEEM Ferocactus emoryi (Engelm.) Orcutt Emory's barrel cactus    
FECO2 Ferocactus covillei Britt. & Rose   1/0
FEVI2 Ferocactus viridescens (Torr. & Gray) Britt. & Rose San Diego barrelcactus 3/0
FEWI Ferocactus wislizeni (Engelm.) Britt. & Rose candy barrelcactus 2/0
FEAS2 Ferula assa-foetida L. asafetida 1/0
FESTU Festuca L. fescue 4/0
FEAL Festuca altaica Trin. Altai fescue 0/1
FESC Festuca scabrella Torr. ex Hook.   0/1
FEAR2 Festuca arizonica Vasey Arizona fescue 4/1
FEAR4 Festuca arvernensis Auquier, Kerguélen & Markgr.-Dannenb. field fescue    
FEOVG Festuca ovina L. var. glauca (Lam.) W.D.J. Koch   2/0
FEBR Festuca brachyphylla J.A. Schultes ex J.A. & J.H. Schultes alpine fescue 0/1
FEBRB Festuca brachyphylla J.A. Schultes ex J.A. & J.H. Schultes ssp. brachyphylla alpine fescue    
FEOVB4 Festuca ovina L. var. brachyphylla (J.A. Schultes ex J.A. & J.H. Schultes) Piper ex A.S. Hitchc.   1/0
FEBR7 Festuca brevipila Tracey hard fescue    
FELO Festuca longifolia auct. non Thuill. [misapplied]   1/0
FEOVD Festuca ovina L. var. duriuscula auct. non (L.) W.D.J. Koch [misapplied]   2/0
FETR3 Festuca trachyphylla (Hack.) Krajina nom. illeg.   3/0
FECA Festuca californica Vasey California fescue 1/1
FEDA Festuca dasyclada Hack. ex Beal oil shale fescue 0/1
FEEL2 Festuca elmeri Scribn. & Merr. coast fescue 0/1
FEFI Festuca filiformis Pourret fineleaf sheep fescue    
FECA3 Festuca capillata Lam.   1/2
FEHE Festuca heterophylla Lam. variousleaf fescue    
FERUH Festuca rubra L. var. heterophylla (Lam.) Mutel   2/0
FEID Festuca idahoensis Elmer Idaho fescue 6/1
FELI Festuca ligulata Swallen Guadalupe fescue 0/1
FEOC Festuca occidentalis Hook. western fescue 0/2
FEOV Festuca ovina L. sheep fescue 3/2
FEPA2 Festuca paradoxa Desv. clustered fescue 0/1
FENU Festuca nutans Biehler   0/1
FESH Festuca shortii Kunth ex Wood   0/1
FERU2 Festuca rubra L. red fescue 2/3
FESO Festuca sororia Piper ravine fescue 0/1
FESU Festuca subulata Trin. bearded fescue 0/1
FESU2 Festuca subuliflora Scribn. crinkleawn fescue 0/1
FESU3 Festuca subverticillata (Pers.) Alexeev nodding fescue 0/1
FEOB Festuca obtusa Biehler   1/1
FETH Festuca thurberi Vasey Thurber's fescue 0/1
FEVE Festuca versuta Beal Texas fescue 0/1
FEVI Festuca viridula Vasey greenleaf fescue 2/1
FECO3 Fevillea cordifolia L. antidote caccoon 1/0
FIAU Ficus aurea Nutt. Florida strangler fig 5/0
FIAU3 Ficus auriculata Lour. Roxburgh fig 2/0
FICA Ficus carica L. edible fig 3/0
FICI Ficus citrifolia P. Mill. wild banyantree 1/0
FIEL Ficus elastica Roxb. ex Hornem. Indian rubberplant 1/0
FIPU2 Ficus pumila L. climbingfig 2/0
FIST Ficus stahlii Warb. jaguey 1/0
FISUH Ficus superba Miq. var. henneana (Miq.) Corner deciduous fig 2/0
FISY2 Ficus sycomorus L. sycamore fig 2/0
FITH2 Ficus thonningii Blume Chinese banyan 1/0
FITR Ficus trigonata L. jaguey blanco 1/0
FIVU2 Filago vulgaris Lam. common cottonrose    
GIGE2 Gifola germanica Dumort.   0/1
FIRU2 Filipendula rubra (Hill) B.L. Robins. queen of the prairie 2/1
FIUL Filipendula ulmaria (L.) Maxim. queen of the meadow 1/1
FIULU Filipendula ulmaria (L.) Maxim. ssp. ulmaria queen of the meadow    
SPUL2 Spiraea ulmaria L.   1/0
FIVU Filipendula vulgaris Moench dropwort 2/0
FIAN Fimbristylis annua (All.) Roemer & J.A. Schultes annual fimbry 1/1
FIBA Fimbristylis baldwiniana (J.A. Schultes) Torr.   0/1
FIAU2 Fimbristylis autumnalis (L.) Roemer & J.A. Schultes slender fimbry 0/1
FIGE3 Fimbristylis geminata (Nees) Kunth   0/1
FICA4 Fimbristylis castanea (Michx.) Vahl marsh fimbry 0/1
FIDI Fimbristylis dichotoma (L.) Vahl forked fimbry 1/0
FIMI Fimbristylis miliacea (L.) Vahl grasslike fimbry 1/0
FIPU Fimbristylis puberula (Michx.) Vahl hairy fimbry 2/1
FIPUI Fimbristylis puberula (Michx.) Vahl var. interior (Britt.) Kral hairy fimbry    
FIIN2 Fimbristylis interior Britt.   0/1
FITH Fimbristylis thermalis S. Wats. hot springs fimbry 1/0
FIVA Fimbristylis vahlii (Lam.) Link Vahl's fimbry 0/1
FIAF Fingerhuthia africana Lehm. Zulu fescue 2/0
FIVI2 Fioria vitifolia (L.) Mattei tropical fanleaf 2/0
FIAD70 Fissidens adianthoides Hedw. fissidens moss 3/0
FIBR70 Fissidens bryoides Hedw. bryoid fissidens moss 4/0
FIPU3 Fissidens pusillus (Wils.) Milde   2/0
FIDU Fissidens dubius P. Beauv. fissidens moss 4/0
FILI Fissidens limbatus Sull. fissidens moss 1/0
FITA Fissidens taxifolius Hedw. fissidens moss 6/0
FIVE4 Fissidens ventricosus Lesq. fissidens moss    
FIRU3 Fissidens rufulus auct. Amer.   6/0
FICU2 Fitzroya cupressoides (Molina) I. M. Johnst. Patagonian cypress 3/0
FLIN Flacourtia indica (Burm. f.) Merr. governor's plum 1/0
FLCA Flaveria campestris J.R. Johnston alkali yellowtops 1/1
FLIN2 Fleischmannia incarnata (Walt.) King & H.E. Robins. pink thoroughwort    
EUIN Eupatorium incarnatum Walt.   0/1
FLIND Flindersia R. Br. flindersia 0/1
FLBR Flindersia brayleyana F. Muell. Queensland maple 1/0
FLPR Floerkea proserpinacoides Willd. false mermaidweed 3/1
FOVU Foeniculum vulgare P. Mill. sweet fennel 4/0
FOFO Foeniculum foeniculum (L.) Karst.   0/1
FOAN2 Fontinalis antipyretica Hedw. antifever fontinalis moss 2/0
FOBR2 Forchhammeria brevipes Urban shortstalk forchhammeria 1/0
FOAC Forestiera acuminata (Michx.) Poir. eastern swampprivet 7/2
FOAN Forestiera angustifolia Torr. Texas swampprivet 2/0
FOEG Forestiera eggersiana Krug & Urban inkbush 2/0
FOLI Forestiera ligustrina (Michx.) Poir. upland swampprivet 1/0
FOPU2 Forestiera pubescens Nutt. stretchberry 5/0
FOPUP Forestiera pubescens Nutt. var. pubescens stretchberry 2/0
FONE Forestiera neomexicana Gray   2/0
FOSE Forestiera segregata (Jacq.) Krug & Urban Florida swampprivet 1/0
FORSY Forsythia Vahl forsythia 4/0
FOIN3 Forsythia ×intermedia Zabel [suspensa × viridissima] showy forsythia 2/0
FOSU Forsythia suspensa (Thunb.) Vahl weeping forsythia 1/0
FORTU Fortunella Swingle kumquat 2/0
FOWO Fossombronia wondraczekii (Corda) Dumort. 5/0
FOTHE Fothergilla L. witchalder 2/0
FOGA Fothergilla gardenii L. dwarf witchalder 4/1
FOMA Fothergilla major (Sims) Lodd. mountain witchalder 1/0
FOCO3 Fouquieria columnaris (Kellogg) Kellogg ex Curran boojum tree 1/0
FODI3 Fouquieria diguetii (Tiegh.) I.M. Johnst. Adam's tree 1/0
FOSP2 Fouquieria splendens Engelm. ocotillo 13/0
FRCH Fragaria chiloensis (L.) P. Mill. beach strawberry 5/0
FRVE Fragaria vesca L. woodland strawberry 5/1
FRVEA2 Fragaria vesca L. ssp. americana (Porter) Staudt woodland strawberry    
FRAM4 Fragaria americana (Porter) Britt.   0/1
FRVI Fragaria virginiana Duchesne Virginia strawberry 6/1
FRVIG2 Fragaria virginiana Duchesne ssp. glauca (S. Wats.) Staudt Virginia strawberry    
FRGL2 Fragaria glauca (S. Wats.) Rydb.   2/0
FROV Fragaria ovalis (Lehm.) Rydb.   1/0
FRVIG3 Fragaria virginiana Duchesne ssp. grayana (Vilm. ex J. Gay) Staudt Virginia strawberry    
FRGR6 Fragaria grayana Vilm. ex J. Gay   0/1
FRVIP2 Fragaria virginiana Duchesne ssp. platypetala (Rydb.) Staudt Virginia strawberry 2/0
FRVIV Fragaria virginiana Duchesne ssp. virginiana Virginia strawberry    
FRCA11 Fragaria canadensis Michx.   0/1
FRAL4 Frangula alnus P. Mill. glossy buckthorn 3/0
RHFR Rhamnus frangula L.   0/1
FRBE2 Frangula betulifolia (Greene) V. Grub. beechleaf frangula 1/0
FRCAC5 Frangula californica (Eschsch.) Gray ssp. californica California buckthorn 4/0
RHCA Rhamnus californica Eschsch.   6/1
FRCAC6 Frangula californica (Eschsch.) Gray ssp. crassifolia (Jepson) Kartesz & Gandhi California buckthorn    
RHTOC Rhamnus tomentella Benth. ssp. crassifolia (Jepson) J.O. Sawyer   3/0
FRCA13 Frangula caroliniana (Walt.) Gray Carolina buckthorn 3/1
RHCA2 Rhamnus caroliniana Walt.   3/1
FRPU7 Frangula purshiana (DC.) Cooper Cascara buckthorn 5/0
RHPU Rhamnus purshiana DC.   2/0
FRSA Frankenia salina (Molina) I.M. Johnston alkali seaheath 1/0
FRAL Franklinia alatamaha Bartr. ex Marsh. Franklin tree 3/0
FRASE Frasera Walter green gentian 1/0
FRAL2 Frasera albicaulis Dougl. ex Griseb. whitestem frasera 2/0
FRALA Frasera albicaulis Dougl. ex Griseb. var. albicaulis whitestem frasera 4/0
FRALM Frasera albicaulis Dougl. ex Griseb. var. modocensis (St. John) N. Holmgren Modoc frasera    
FRPA6 Frasera pahutensis Reveal   4/0
FRALN Frasera albicaulis Douglas ex Griseb. var. nitida (Benth.) C.L. Hitchc. whitestem frasera    
FRNI2 Frasera nitida Benth.   1/0
SWNI Swertia nitida (Benth.) Jeps.   1/0
FRAL5 Frasera albomarginata S. Wats. desert frasera 6/0
SWAL3 Swertia albomarginata (S. Wats.) Kuntze   9/0
FRCA2 Frasera caroliniensis Walt. American columbo 0/1
SWCA Swertia caroliniensis (Walt.) Kuntze   1/0
FRPA2 Frasera paniculata Torr. tufted frasera 3/0
FRPA3 Frasera parryi Torr. Coahuila frasera 3/0
FRSP Frasera speciosa Dougl. ex Griseb. elkweed 11/0
SWRA Swertia radiata (Kellogg) Kuntze   4/0
FRAXI Fraxinus L. ash 1/1
FRAM2 Fraxinus americana L. white ash 8/2
FRBI2 Fraxinus biltmoreana Beadle   0/1
FRAN2 Fraxinus anomala Torr. ex S. Wats. singleleaf ash 12/0
FRCA3 Fraxinus caroliniana P. Mill. Carolina ash 4/1
FRCU Fraxinus cuspidata Torr. fragrant ash 1/0
FRDI2 Fraxinus dipetala Hook. & Arn. California ash 3/0
FREX80 Fraxinus excelsior L. European ash 2/0
FRLA Fraxinus latifolia Benth. Oregon ash 3/0
FRMA5 Fraxinus mandshurica Rupr. Manchurian ash 4/0
FRNI Fraxinus nigra Marsh. black ash 9/2
FROR2 Fraxinus ornus L. flowering ash 1/0
FRPE Fraxinus pennsylvanica Marsh. green ash 9/2
FRDA Fraxinus darlingtonii Britt.   0/1
FRPR Fraxinus profunda (Bush) Bush pumpkin ash 4/3
FRMI2 Fraxinus michauxii Britt.   0/1
FRQU Fraxinus quadrangulata Michx. blue ash 1/1
FRTE Fraxinus texensis (Gray) Sarg. Texas ash 1/0
FRUH Fraxinus uhdei (Wenzig) Lingelsh. shamel ash 2/0
FRVE2 Fraxinus velutina Torr. velvet ash 4/0
FRCO8 Freesia corymbosa (Burm. f.) N.E. Br. common freesia 1/0
FRRE2 Freesia refracta (Jacq.) Eckl. ex Klatt   1/0
FRLA5 Freesia laxa (Thunb.) Goldblatt & J.C. Manning false freesia 1/0
LACR2 Lapeirousia cruenta (Lindl.) Benth. ex Baker   2/0
FRCA6 Fremontodendron californicum (Torr.) Coville California flannelbush 10/1
FRCA9 Fremontia californica Torr.   5/0
FRDE2 Fremontodendron decumbens R. Lloyd Pine Hill flannelbush    
FRCAD Fremontodendron californicum (Torr.) Coville ssp. decumbens (R. Lloyd) Munz   1/0
FRME2 Fremontodendron mexicanum A. Davids. Mexican flannelbush 1/0
FREYC Freycinetia Gaud. freycinetia 3/0
FROB3 Friesodielsia obovata (Benth.) Verdcourt monkey fingers 2/0
FRAFA2 Fritillaria affinis (Schultes) Sealy var. affinis checker lily    
FRLA2 Fritillaria lanceolata Pursh   5/0
FRAT Fritillaria atropurpurea Nutt. spotted fritillary 15/1
FRBI Fritillaria biflora Lindl. chocolate lily 4/0
FRCA5 Fritillaria camschatcensis (L.) Ker-Gawl. Kamchatka fritillary 2/0
FRIM Fritillaria imperialis L. [excluded] imperial fritillary 3/0
FRLI2 Fritillaria liliacea Lindl. fragrant fritillary 4/0
FRME5 Fritillaria meleagris L. chequered lily 4/0
FRMI Fritillaria micrantha Heller brown fritillary 3/0
FRPU2 Fritillaria pudica (Pursh) Spreng. yellow fritillary 6/0
FRRE Fritillaria recurva Benth. scarlet fritillary 10/0
FRST Fritillaria striata Eastw. striped abobe lily 1/0
FRFL Froelichia floridana (Nutt.) Moq. plains snakecotton 5/0
FRFLC Froelichia floridana (Nutt.) Moq. var. campestris (Small) Fern. plains snakecotton    
FRCA7 Froelichia campestris Small   0/1
FRGR3 Froelichia gracilis (Hook.) Moq. slender snakecotton 3/1
FRJA2 Frullania jackii Gottsche 2/0
FUCHS Fuchsia L. fuchsia 7/0
FUAN Fuchsia andrei I.M. Johnston Andre's fuchsia 2/0
FUMA Fuchsia magellanica Lam. hardy fuchsia 8/0
FUPA2 Fuchsia paniculata Lindl. shrubby fuchsia 3/0
FUVU Fuchsia vulcanica Andre. Volcan's fuchsia 2/0
FUPU Fuirena pumila (Torr.) Spreng. dwarf umbrella-sedge 1/1
FUSI Fuirena simplex Vahl western umbrella-sedge 1/1
FUSQ Fuirena squarrosa Michx. hairy umbrella-sedge 1/2
FUHI2 Fuirena hispida Ell.   0/1
FUCA Fumaria capreolata L. white ramping fumitory 1/0
FUOF Fumaria officinalis L. drug fumitory 1/1
FUPA Fumaria parviflora Lam. fineleaf fumitory 1/0
FUHY70 Funaria hygrometrica Hedw. funaria moss 7/0
FUMU Funaria muhlenbergii Turn. Muhlenberg's funaria moss 2/0
FUCYC Funastrum cynanchoides (Dcne.) Schlechter ssp. cynanchoides fringed twinevine    
SACY2 Sarcostemma cynanchoides Dcne.   3/0
FUHI Funastrum hirtellum (Gray) Schlechter hairy milkweed    
SAHI2 Sarcostemma hirtellum (Gray) R. Holm   2/0
FUTU Furcraea tuberosa (P. Mill.) Ait. f. female karata 2/0
GAILL Gaillardia Foug. blanketflower 1/0
GAAE Gaillardia aestivalis (Walt.) H. Rock lanceleaf blanketflower 4/0
GAAEA Gaillardia aestivalis (Walt.) H. Rock var. aestivalis lanceleaf blanketflower 3/0
GAAEF Gaillardia aestivalis (Walt.) H. Rock var. flavovirens (C. Mohr) Cronq. lanceleaf blanketflower    
GALU2 Gaillardia lutea Greene   0/1
GAAEW Gaillardia aestivalis (Walt.) H. Rock var. winkleri (Cory) B.L. Turner Winkler's blanketflower 1/0
GAAR Gaillardia aristata Pursh common gaillardia 4/1
GAGR11 Gaillardia ×grandiflora Van Houtte [aristata × pulchella] 2/0
GAPA Gaillardia parryi Greene Parry's blanketflower 1/0
GAPI Gaillardia pinnatifida Torr. red dome blanketflower 10/0
GAPU Gaillardia pulchella Foug. firewheel 7/1
GASU Gaillardia suavis (Gray & Engelm.) Britt. & Rusby perfumeballs 0/1
GADU2 Galactia dubia DC. West Indian milkpea 1/0
GAEG Galactia eggersii Urban Eggers' milkpea 2/0
GARE2 Galactia regularis (L.) B.S.P. eastern milkpea 1/1
GAST2 Galactia striata (Jacq.) Urban Florida hammock milkpea 1/0
GAVO Galactia volubilis (L.) Britt. downy milkpea 3/1
GALAN Galanthus L. snowdrop 1/0
GAEL5 Galanthus elwesii Hook. f. giant snowdrop    
GAEL3 Galanthus elewesii Hook. f. [orthographic error]   2/0
GANI Galanthus nivalis L. snowdrop 2/0
GAUR2 Galax urceolata (Poir.) Brummitt beetleweed 4/0
GAAP Galax aphylla auct. non L. [misapplied]   10/1
GASP5 Galearis spectabilis (L.) Raf. showy orchid 5/0
GASP11 Galeorchis spectabilis (L.) Rydb.   0/1
ORSP2 Orchis spectabilis L.   4/0
GAOF Galega officinalis L. professor-weed 1/0
GALA Galeopsis ladanum L. red hempnettle 0/1
GATE2 Galeopsis tetrahit L. brittlestem hempnettle 1/1
GAPA2 Galinsoga parviflora Cav. gallant soldier 0/1
GAAP2 Galium aparine L. stickywilly 8/2
GAVA Galium vaillantii DC.   0/1
GAAR4 Galium arkansanum Gray Arkansas bedstraw 0/1
GAAS2 Galium asprellum Michx. rough bedstraw 1/2
GABO2 Galium boreale L. northern bedstraw 1/2
GACA4 Galium catalinense Gray Santa Catalina Island bedstraw 2/0
GACI2 Galium circaezans Michx. licorice bedstraw 0/1
GACIC Galium circaezans Michx. var. circaezans licorice bedstraw    
GABE3 Galium bermudense L. p.p.   0/1
GACO3 Galium concinnum Torr. & Gray shining bedstraw 0/1
GAFE Galium fendleri Gray Fendler's bedstraw 2/0
GAGL3 Galium glaucum L. waxy bedstraw    
ASGA5 Asperula galioides Bieb.   0/1
GAHI Galium hispidulum Michx. coastal bedstraw 2/0
GAKA Galium kamtschaticum Steller ex J.A. & J.H. Schultes boreal bedstraw 0/1
GALA2 Galium labradoricum (Wieg.) Wieg. northern bog bedstraw 0/1
GALA3 Galium lanceolatum Torr. lanceleaf wild licorice 0/1
GALA4 Galium latifolium Michx. purple bedstraw 0/1
GAMEA2 Galium mexicanum Kunth ssp. asperulum (A. Gray) Dempster Mexican bedstraw 2/0
GAMO Galium mollugo L. false baby's breath 0/1
GAOB Galium obtusum Bigelow bluntleaf bedstraw 1/1
GAOD3 Galium odoratum (L.) Scop. sweetscented bedstraw    
ASOD Asperula odorata L.   0/1
GAOR Galium oreganum Britt. Oregon bedstraw 2/0
GAPA3 Galium palustre L. common marsh bedstraw 0/1
GAPA5 Galium parisiense L. wall bedstraw 0/1
GAPI2 Galium pilosum Ait. hairy bedstraw 0/1
GASY Galium sylvaticum L. Scotch mist 0/1
GATI Galium tinctorium L. stiff marsh bedstraw 2/2
GACL3 Galium claytonii Michx.   0/1
GATR6 Galium tricornutum Dandy roughfruit corn bedstraw    
GATR8 Galium tricorne Stokes p.p.   0/1
GATR2 Galium trifidum L. threepetal bedstraw 1/2
GATR3 Galium triflorum Michx. fragrant bedstraw 3/1
GAVE Galium verum L. Yellow Spring bedstraw 0/1
GAVI Galium virgatum Nutt. southwestern bedstraw 0/1
GAWR2 Galium wrightii Gray Wright's bedstraw 2/0
GAPE2 Gamochaeta pensylvanica (Willd.) Cabrera Pennsylvania everlasting 2/0
GNPUS Gnaphalium purpureum L. var. spathulatum (Lam.) Baker   2/0
GAPU3 Gamochaeta purpurea (L.) Cabrera spoonleaf purple everlasting 5/1
GNPU2 Gnaphalium purpureum L.   1/1
GANU5 Garcia nutans Vahl [excluded] false tungoiltree 2/0
GALI5 Garcinia livingstonei T. Anderson Livingstone's garcinia 1/0
GATH Gardenia thunbergia L. f. Thunberg's gardenia 1/0
GAVO2 Gardenia volkensii K.Schum. common gardenia 5/0
GAEL Garrya elliptica Dougl. ex Lindl. wavyleaf silktassel 7/0
GAFA5 Garrya fadyenia Hook. Fadyen's silktassel 1/0
GAFL2 Garrya flavescens S. Wats. ashy silktassel 2/0
GAFR Garrya fremontii Torr. bearbrush 2/1
GAVE2 Garrya veatchii Kellogg canyon silktassel 1/0
GAWR3 Garrya wrightii Torr. Wright's silktassel 4/0
GAPH2 Gastridium phleoides (Nees & Meyen) C.E. Hubbard nit grass    
GAVE3 Gastridium ventricosum auct. non (Gouan) Schinz & Thellung [misapplied]   1/1
GAFR6 Gaudinia fragilis (L.) Beauv. fragile oat 2/0
GAULT Gaultheria L. snowberry 1/0
GAHI2 Gaultheria hispidula (L.) Muhl. ex Bigelow creeping snowberry 2/1
CHHI6 Chiogenes hispidula (L.) Torr. & Gray   0/1
GAHU Gaultheria humifusa (Graham) Rydb. alpine spicywintergreen 3/0
GAOV2 Gaultheria ovatifolia Gray western teaberry 2/0
GAPR2 Gaultheria procumbens L. eastern teaberry 8/2
GASH Gaultheria shallon Pursh salal 10/1
GAURA Gaura L. beeblossom 1/0
GABI2 Gaura biennis L. biennial beeblossom 6/1
GABR2 Gaura brachycarpa Small plains beeblossom 1/0
GACO5 Gaura coccinea Nutt. ex Pursh scarlet beeblossom 2/1
GAHEG Gaura hexandra Ortega ssp. gracilis (Woot. & Standl.) Raven & Gregory harlequinbush    
GAGR9 Gaura gracilis Woot. & Standl.   3/0
GALI2 Gaura lindheimeri Engelm. & Gray Lindheimer's beeblossom 5/0
GALO3 Gaura longiflora Spach longflower beeblossom 1/0
GAMO5 Gaura mollis James velvetweed 4/0
GAPA6 Gaura parviflora Dougl. ex Lehm.   1/1
GASI Gaura sinuata Nutt. ex Ser. wavyleaf beeblossom 0/1
GAVI2 Gaura villosa Torr. woolly beeblossom 0/1
GAYLU Gaylussacia Kunth huckleberry 0/1
GABA Gaylussacia baccata (Wangenh.) K. Koch black huckleberry 1/3
GABR5 Gaylussacia brachycera (Michx.) Gray box huckleberry 0/1
GADU Gaylussacia dumosa (Andr.) Torr. & Gray dwarf huckleberry 5/2
GAFR2 Gaylussacia frondosa (L.) Torr. & Gray ex Torr. blue huckleberry 9/2
GAHE3 Gayophytum heterozygum Lewis & Szweykowski zigzag groundsmoke 2/0
GAHU2 Gayophytum humile Juss. dwarf groundsmoke 1/0
GAZAN Gazania Gaertn. gazania 3/0
GALI4 Gazania linearis (Thunb.) Druce treasureflower    
GALO2 Gazania longiscapa DC.   1/0
GARI2 Gazania rigens (L.) Gaertn. treasure-flower    
GASP14 Gazania splendens Lem.   1/0
GEGI Geheebia gigantea (Funck) Boul. giant geheebia moss 3/0
GERA4 Gelsemium rankinii Small Rankin's trumpetflower 2/1
GESE Gelsemium sempervirens (L.) St. Hil. evening trumpetflower 14/2
GECA16 Genista canariensis L. Canary broom 1/0
CYCA6 Cytisus canariensis (L.) Kuntze   1/0
GELI5 Genista linifolia L. Mediterranean broom    
CYLI2 Cytisus linifolius (L.) Lam.   1/0
GEST9 Genista stenopetala Webb & Bethel. leafy broom    
CYMA19 Cytisus maderensis (Webb & Bethel.) Masf.   2/0
GETI Genista tinctoria L. Dyer's greenweed 1/1
GEDU Genistidium dumosum I.M. Johnston brushpea 4/0
GENTI Gentiana L. gentian 2/0
GEAC4 Gentiana acaulis L. gentian 2/0
GEAF Gentiana affinis Griseb. pleated gentian 3/0
DAAF Dasystephana affinis (Griseb.) Rydb.   0/1
PNAF Pneumonanthe affinis (Griseb.) W.A. Weber   3/0
GEAL4 Gentiana alba Muhl. ex Nutt. plain gentian 1/0
GEFL Gentiana flavida Gray   0/1
GEAN Gentiana andrewsii Griseb. closed bottle gentian 8/1
GEANA Gentiana andrewsii Griseb. var. andrewsii closed bottle gentian    
DAAN Dasystephana andrewsii (Griseb.) Small   0/1
GEAU4 Gentiana autumnalis L. pine barren gentian 4/0
DAPO6 Dasystephana porphyrio (J.F. Gmel.) Small   0/1
GECA Gentiana calycosa Griseb. Rainier pleated gentian 8/1
GECA10 Gentiana catesbaei Walt. Elliott's gentian 1/0
DAPA3 Dasystephana parvifolia (Chapman) Small   0/1
GECL Gentiana clausa Raf. bottle gentian 2/1
GEDE3 Gentiana decora Pollard showy gentian 4/0
GELI3 Gentiana linearis Froel. narrowleaf gentian    
DALI Dasystephana linearis (Froel.) Britt.   0/1
GENE Gentiana newberryi Gray alpine gentian 6/0
GEPA Gentiana parryi Engelm. Parry's gentian 1/0
PNPA Pneumonanthe parryi (Engelm.) Greene   2/0
GEPR3 Gentiana prostrata Haenke pygmy gentian 2/0
GEPU5 Gentiana puberulenta J. Pringle downy gentian 4/0
GERU Gentiana rubricaulis Schwein. closed gentian    
DAGR3 Dasystephana grayi (Kusnez.) Britt.   0/1
GESA Gentiana saponaria L. harvestbells 6/0
GESAS Gentiana saponaria L. var. saponaria harvestbells    
DAPU6 Dasystephana puberula (Michx.) Small as to type, non sensu Small   0/1
DASA2 Dasystephana saponaria (L.) Small   0/1
GESC Gentiana sceptrum Griseb. king's scepter gentian 1/0
GEVI5 Gentiana villosa L. striped gentian 2/0
DAVI3 Dasystephana villosa (L.) Small   0/1
GEAM3 Gentianella amarella (L.) Boerner autumn dwarf gentian 5/1
GEAMA Gentianella amarella (L.) Böerner ssp. acuta (Michx.) J. Gillett autumn dwarf gentian    
GEAC Gentiana acuta Michx.   0/1
GEPL4 Gentiana plebeja Ledeb. ex Spreng.   1/0
GEAMH Gentianella amarella (L.) Böerner ssp. heterosepala (Engelm.) J. Gillett autumn dwarf gentian    
GEHE4 Gentianella heterosepala (Engelm.) Holub   1/0
GEPRP Gentianella propinqua (Richards.) J. Gillett ssp. propinqua fourpart dwarf gentian    
GEPR7 Gentiana propinqua Richards.   0/1
GEQU2 Gentianella quinquefolia (L.) Small agueweed 3/0
GEQUQ Gentianella quinquefolia (L.) Small ssp. quinquefolia agueweed    
GEQU3 Gentiana quinquefolia L.   1/1
GEBA2 Gentianopsis barbellata (Engelm.) Iltis perennial fringed gentian 3/0
GECR2 Gentianopsis crinita (Froel.) Ma greater fringed gentian 1/1
GECR3 Gentiana crinita Froel.   2/1
GEVE5 Gentiana ventricosa Griseb.   0/1
GEDE4 Gentianopsis detonsa (Rottb.) Ma windmill fringed gentian 2/0
GEDED Gentianopsis detonsa (Rottb.) Ma ssp. detonsa windmill fringed gentian    
GEDE9 Gentiana detonsa Rottb.   4/0
GESI3 Gentianopsis simplex (Gray) Iltis oneflower fringed gentian 3/0
GETH Gentianopsis thermalis (Kuntze) Iltis Rocky Mountain fringed gentian 5/0
GETH2 Gentiana thermalis Kuntze   1/0
GEVI6 Gentianopsis virgata (Raf.) Holub lesser fringed gentian    
GEPR8 Gentiana procera Holm   0/1
GEGR8 Geocalyx graveolens (Schrad.) Nees 4/0
GEMI Geocarpon minimum Mackenzie tinytim 11/0
GELI2 Geocaulon lividum (Richards.) Fern. false toadflax    
COLI12 Comandra lividum Richards.   0/1
GECA2 Geraea canescens Torr. & Gray hairy desertsunflower 8/0
GERAN Geranium L. geranium 3/0
GEAR Geranium arboreum Gray Hawai'i red cranesbill 1/0
GEATA Geranium atropurpureum Heller var. atropurpureum western purple cranesbill    
GETO2 Geranium toquimense A.& N. Holmgren   1/0
GEBI2 Geranium bicknellii Britt. Bicknell's cranesbill 2/1
GECA3 Geranium caespitosum James pineywoods geranium 8/0
GECAF Geranium caespitosum James var. fremontii (Torr. ex A. Gray) Dorn Fremont's geranium    
GEFR2 Geranium fremontii Torr. ex A. Gray   1/0
GECAP2 Geranium caespitosum James var. parryi (Engelm.) W.A. Weber Parry's geranium    
GEPA2 Geranium parryi (Engelm.) A. Heller   1/0
GECA4 Geranium californicum G.N. & F.F. Jones California cranesbill 2/0
GECA5 Geranium carolinianum L. Carolina geranium 10/1
GECO Geranium columbinum L. longstalk cranesbill 1/1
GECU Geranium cuneatum Hook. hinahina 2/0
GEDI Geranium dissectum L. cutleaf geranium 3/1
GEDI5 Geranium divaricatum Ehrh. fanleaf geranium 1/0
GEIB Geranium ibericum Cav. Iberian geranium 2/0
GEMA Geranium maculatum L. spotted geranium 11/1
GEMA11 Geranium maderense Yeo Madiera cranesbill 2/0
GEMO Geranium molle L. dovefoot geranium 1/1
GEOR2 Geranium oreganum T.J. Howell Oregon geranium 1/0
GEPA5 Geranium palmatum Cav. Canary Island geranium 1/0
GEPR4 Geranium pratense L. meadow geranium 1/1
GEPU2 Geranium pusillum L. small geranium 2/1
GERE Geranium retrorsum L'Hér. ex DC. New Zealand geranium 3/0
GERI Geranium richardsonii Fisch. & Trautv. Richardson's geranium 10/1
GERO Geranium robertianum L. Robert geranium 4/0
GEROR2 Geranium robertianum L. ssp. robertianum Robert geranium    
RORO2 Robertiella robertiana (L.) Hanks   0/1
GERO3 Geranium rotundifolium L. roundleaf geranium 0/1
GESA2 Geranium sanguineum L. bloody geranium 2/0
GESI2 Geranium sibiricum L. Siberian geranium 0/1
GETR3 Geranium traversii Hook. f. cranesbill 1/0
GEVI2 Geranium viscosissimum Fisch. & C.A. Mey. ex C.A. Mey. sticky purple geranium 6/0
GEJA Gerbera jamesonii Bolus ex Hooker f. Barberton daisy 1/0
GEPA3 Gesneria pauciflora Urban yerba maricao de cueva 1/0
GEPE4 Gesneria pedunculosa (DC.) Fritsch arbol de Navidad 1/0
GEVI7 Gesneria viridiflora (Dcne.) Kuntze grassflower 2/0
GEAL3 Geum aleppicum Jacq. yellow avens 4/0
GEST2 Geum strictum Ait.   1/1
GECA7 Geum canadense Jacq. white avens 5/2
GELA Geum laciniatum Murr. rough avens 1/1
GEMA4 Geum macrophyllum Willd. largeleaf avens 9/2
GEMAM Geum macrophyllum Willd. var. macrophyllum largeleaf avens 1/0
GEMAP Geum macrophyllum Willd. var. perincisum (Rydb.) Raup largeleaf avens    
GEOR3 Geum oregonense (Scheutz) Rydb.   1/0
GEPE Geum peckii Pursh mountain avens 2/0
SIPE6 Sieversia peckii (Pursh) Rydb.   0/1
GEPE2 Geum pentapetalum (L.) Makino Aleutian avens 1/0
GERA2 Geum radiatum Michx. Appalachian avens 6/0
GERI2 Geum rivale L. purple avens 4/2
GEROR Geum rossii (R. Br.) Ser. var. rossii Ross' avens    
ACRO3 Acomastylis rossii (R. Br.) Greene   2/0
GETR Geum triflorum Pursh old man's whiskers 12/0
GETRC2 Geum triflorum Pursh var. ciliatum (Pursh) Fassett old man's whiskers    
GECI2 Geum ciliatum Pursh   2/0
SICI3 Sieversia ciliata (Pursh) G. Don   0/1
GETRT Geum triflorum Pursh var. triflorum old man's whiskers    
ERTR19 Erythrocoma triflora (Pursh) Greene   2/0
GEUR Geum urbanum L. herb bennet 1/0
GEVE Geum vernum (Raf.) Torr. & Gray spring avens 2/2
GEVI4 Geum virginianum L. cream avens 0/1
GEFL4 Geum flavum (Porter) Bickn.   0/1
GIAC2 Gilia achilleifolia Benth. California gilia 2/0
GIBR Gilia brecciarum M.E. Jones Nevada gilia 1/0
GICA5 Gilia capitata Sims bluehead gilia 4/0
GIFL Gilia flavocincta A. Nels. lesser yellowthroat gilia 1/0
GILA Gilia latiflora (Gray) Gray hollyleaf gilia 2/0
GILE2 Gilia leptantha Parish fineflower gilia 1/0
GINE Gilia nevinii Gray Nevin's gilia 2/0
GIOP Gilia ophthalmoides Brand eyed gilia 5/0
GISA Gilia salticola Eastw. salt gilia 2/0
GISI Gilia sinuata Douglas ex Benth. rosy gilia 1/0
GIST Gilia stellata Heller star gilia 2/0
GITR2 Gilia tricolor Benth. bird's-eye gilia 3/0
GIAC4 Giliastrum acerosum (Gray) Rydb. bluebowls    
GIAC3 Gilia acerosa (Gray) Britt.   1/1
GIRI3 Giliastrum rigidulum (Benth.) Rydb. bluebowls    
GIRI Gilia rigidula Benth.   13/0
GIST5 Gillenia stipulata (Muhl. ex Willd.) Baill. Indian physic 1/0
POST5 Porteranthus stipulatus (Muhl. ex Willd.) Britt.   0/1
GITR6 Gillenia trifoliata (L.) Moench Bowman's root 6/0
POTR11 Porteranthus trifoliatus (L.) Britt.   0/1
GILU Gilmania luteola (Coville) Coville goldencarpet 5/0
GIBI2 Ginkgo biloba L. maidenhair tree 6/1
GIRO Ginoria rohrii (Vahl) Koehne bastard gregre 1/0
GIDIC Githopsis diffusa Gray ssp. candida (Ewan) Morin San Gabriel bluecup 4/0
GLCO2 Gladiolus communis L. cornflag 1/0
GLCOB Gladiolus communis L. ssp. byzantinus (Mill.) A.P. Ham. cornflag    
GLBY Gladiolus byzantinus Mill.   1/0
GLIT Gladiolus italicus Mill. Italian gladiolus    
GLSE Gladiolus segetum Ker Gawl.   1/0
GLMU Gladiolus murielae Kelway & Langport ex anon. 1/0
ACBI7 Acidanthera bicolor Hochst.   1/0
GLAND Glandularia J.F. Gmel. mock vervain 1/0
GLBIB Glandularia bipinnatifida (Nutt.) Nutt. var. bipinnatifida Dakota mock vervain 1/0
VEBI Verbena bipinnatifida Nutt.   0/1
GLBIC Glandularia bipinnatifida (Nutt.) Nutt. var. ciliata (Benth.) B.L. Turner Dakota mock vervain    
GLWR Glandularia wrightii (Gray) Umber   7/0
VECI Verbena ciliata Benth.   2/0
VEWR Verbena wrightii Gray   8/0
GLCA2 Glandularia canadensis (L.) Nutt. rose mock vervain 4/0
VECA4 Verbena canadensis (L.) Britt.   2/1
GLMA5 Glandularia maritima (Small) Small coastal mock vervain    
VEMA3 Verbena maritima Small   2/0
GLPE Glandularia peruviana (L.) Small Peruvian mock vervain    
VEPE6 Verbena peruviana (L.) Britt.   1/0
GLCO3 Glaucium corniculatum (L.) J.H. Rudolph blackspot hornpoppy 1/0
GLFL Glaucium flavum Crantz yellow hornpoppy 0/1
GLSU Glaucocarpum suffrutescens (Rollins) Rollins Uinta Basin waxfruit 3/0
GLMA Glaux maritima L. sea milkwort 2/2
GLCO6 Glebionis coronarium (L.) Tzvelev crowndaisy    
CHCO7 Chrysanthemum coronarium L.   2/0
GLSE5 Glebionis segetum (L.) Fourr. corndaisy    
CHSE Chrysanthemum segetum L.   0/1
GLHE2 Glechoma hederacea L. ground ivy 4/1
NEHE2 Nepeta hederacea (L.) Trevisan   1/0
GLEDI Gleditsia L. locust 2/0
GLAQ Gleditsia aquatica Marsh. water locust 4/2
GLTE Gleditsia ×texana Sarg. (pro sp.) [aquatica × triacanthos] 1/0
GLTR Gleditsia triacanthos L. honeylocust 13/3
GLLI Glehnia littoralis F. Schmidt ex Miq. American silvertop 1/0
GLLIL Glehnia littoralis F. Schmidt ex Miq. ssp. leiocarpa (Mathias) Hultén American silvertop    
GLLE5 Glehnia leiocarpa Mathias   2/0
GLSE2 Gliricidia sepium (Jacq.) Kunth ex Walp. quickstick 2/0
GLSU2 Gloriosa superba L. flame lily 14/0
GLPU Glossopetalon pungens Brandeg. dwarf greasebush 3/0
GLSPM Glossopetalon spinescens Gray var. meionandrum (Koehne) Trel. spiny greasebush 2/0
GLAC Glyceria acutiflora Torr. creeping mannagrass 0/1
PAAC8 Panicularia acutiflora (Torr.) Kuntze   0/1
GLAR Glyceria arkansana Fern. Arkansas mannagrass 0/1
GLBO Glyceria borealis (Nash) Batchelder small floating mannagrass 1/1
PABO4 Panicularia borealis Nash   0/1
GLCA Glyceria canadensis (Michx.) Trin. rattlesnake mannagrass 1/2
PACA21 Panicularia canadensis (Michx.) Kuntze   0/1
GLDE Glyceria declinata Brébiss. waxy mannagrass 0/1
GLFL2 Glyceria fluitans (L.) R. Br. water mannagrass 2/1
PAFL7 Panicularia fluitans (L.) Kuntze   0/1
GLGR Glyceria grandis S. Wats. American mannagrass 1/1
GLGRG Glyceria grandis S. Wats. var. grandis American mannagrass    
PAGR4 Panicularia grandis (S. Wats.) Nash   0/1
GLLA Glyceria laxa (Scribn.) Scribn. limp mannagrass    
PALA31 Panicularia laxa Scribn.   0/1
GLLE2 Glyceria leptostachya Buckl. davy mannagrass 0/1
GLMA3 Glyceria maxima (Hartman) Holmb. reed mannagrass 1/1
GLSP2 Glyceria spectabilis Mert. & Koch   1/0
GLME2 Glyceria melicaria (Michx.) F.T. Hubbard melic mannagrass 0/2
GLNU Glyceria nubigena W.A. Anderson Great Smoky Mountain mannagrass 0/1
GLOB Glyceria obtusa (Muhl.) Trin. Atlantic mannagrass 1/2
PAOB2 Panicularia obtusa (Muhl.) Kuntze   0/1
GLOC Glyceria occidentalis (Piper) J.C. Nels. northwestern mannagrass 0/1
GLSE3 Glyceria septentrionalis A.S. Hitchc. floating mannagrass 0/1
PASE11 Panicularia septentrionalis (A.S. Hitchc.) Bickn.   0/1
GLST Glyceria striata (Lam.) A.S. Hitchc. fowl mannagrass 5/1
GLEL Glyceria elata (Nash ex Rydb.) M.E. Jones   3/1
PANE5 Panicularia nervata (Willd.) Kuntze   0/1
GLMA4 Glycine max (L.) Merr. soybean 1/0
GLSO80 Glycine soja Sieb. & Zucc.   1/0
GLLE3 Glycyrrhiza lepidota Pursh American licorice 9/2
GLMA2 Glyptopleura marginata D.C. Eat. carveseed 2/0
GLSE4 Glyptopleura setulosa Gray holy dandelion 1/0
GMPH Gmelina philippensis Cham. wild sage 1/0
GNPA Gnaphalium palustre Nutt. western marsh cudweed 0/1
GNUL Gnaphalium uliginosum L. marsh cudweed 0/1
GNGN Gnetum gnemon L. buko 1/0
GOLI Gomidesia lindeniana Berg grand merisier 1/0
GOGL Gomphrena globosa L. common globe amaranth 3/0
GONI Gomphrena nitida Rothrock pearly globe amaranth 1/0
GOCO Gonocalyx concolor Nevl. island brittleleaf 1/0
GOPO2 Gonocalyx portoricensis (Urban) A.C. Sm. Puerto Rico brittleleaf 1/0
GOLU Goodmania luteola (Parry) Reveal & Ertter yellow spinecape 2/0
GOOB2 Goodyera oblongifolia Raf. western rattlesnake plantain 3/0
PEDE14 Peramium decipiens (Hook.) Piper   0/1
GOPU Goodyera pubescens (Willd.) R. Br. ex Ait. f. downy rattlesnake plantain 7/1
PEPU20 Peramium pubescens (Willd.) MacM.   0/1
GORE2 Goodyera repens (L.) R. Br. ex Ait. f. lesser rattlesnake plantain    
PEOP2 Peramium ophioides (Fern.) Rydb.   0/1
GOTE Goodyera tesselata Lodd. checkered rattlesnake plantain    
PETE14 Peramium tesselatum (Lodd.) Heller   0/1
GOLA Gordonia lasianthus (L.) Ellis loblolly bay 4/2
GOAR2 Gossypium arboreum L. tree cotton    
GONA Gossypium nanking Meyen   1/0
GOBA Gossypium barbadense L. Creole cotton 2/0
GOBR2 Gossypium brasiliense Macfad.   1/0
GOHI Gossypium hirsutum L. upland cotton 1/0
GRAU Gratiola aurea Pursh golden hedgehyssop 2/1
GRNE Gratiola neglecta Torr. clammy hedgehyssop 2/1
GRPI Gratiola pilosa Michx. shaggy hedgehyssop    
SOPI4 Sophronanthe pilosa (Michx.) Small   0/1
GRVI Gratiola virginiana L. roundfruit hedgehyssop 1/2
GRVIV Gratiola virginiana L. var. virginiana roundfruit hedgehyssop    
GRSP3 Gratiola sphaerocarpa Ell.   0/1
GRVI2 Gratiola viscidula Pennell Short's hedgehyssop    
GRVI4 Gratiola viscosa Schwein.   0/1
GRSP Grayia spinosa (Hook.) Moq. spiny hopsage 12/1
ATGR3 Atriplex grayi Collotzi ex W.A. Weber   5/0
GREVI Grevillea R. Br. ex Knight grevillea 1/0
GRBA Grevillea banksii R. Br. kahiliflower 2/0
GRRO Grevillea robusta A. Cunningham ex R. Br. silkoak 5/1
GREWI Grewia L. grewia 4/0
GRSI3 Grewia similis K. Schum. 1/0
GRRA4 Greyia radlkoferi Szyszyl. Natal bottlebrush 1/0
GRIMM2 Grimmia Hedw. grimmia dry rock moss 1/0
GRAF70 Grimmia affinis Hoppe & Hornsch. ex Hornsch. grimmia dry rock moss 4/0
GRAN70 Grimmia anodon Bruch & Schimp. in B.S.G. grimmia dry rock moss 2/0
GRAN3 Grimmia anomala Hampe ex Schimp. grimmia dry rock moss 4/0
GRAT2 Grimmia atrata Miel. ex Hornsch. grimmia dry rock moss 2/0
GRDO Grimmia donniana Sm. Donn's dry rock moss 3/0
GREL2 Grimmia elatior Bruch ex Bals. & De Not. grimmia dry rock moss 3/0
GREL3 Grimmia elongata Kaulf. in Sturm grimmia dry rock moss 1/0
GRFU Grimmia funalis (Schwaegr.) Bruch & Schimp. in B.S.G. grimmia dry rock moss 6/0
GRHA6 Grimmia hartmanii Schimp. Hartman's dry rock moss 4/0
GRIN9 Grimmia incurva Schwaegr. grimmia dry rock moss 6/0
GRLA5 Grimmia laevigata (Brid.) Brid. grimmia dry rock moss 7/0
GRMO4 Grimmia mollis Bruch & Schimp. in B.S.G. grimmia dry rock moss 3/0
GRMO5 Grimmia montana Bruch & Schimp. in B.S.G. montane dry rock moss 5/0
GROR2 Grimmia orbicularis Bruch ex Wils. orb dry rock moss 4/0
GROV70 Grimmia ovalis (Hedw.) Lindb. oval dry rock moss 5/0
GRPU Grimmia pulvinata (Hedw.) Sm. pulvinate dry rock moss 4/0
GRTE4 Grimmia tenerrima Renauld & Cardot grimmia dry rock moss 2/0
GRTE5 Grimmia teretinervis Limpr. grimmia dry rock moss 5/0
GRTO4 Grimmia torquata Hornsch. in Grev. grimmia dry rock moss 4/0
GRTR3 Grimmia trichophylla Grev. grimmia dry rock moss 5/0
GRDE4 Grimmia decipiens auct. Amer.   5/0
GRUN Grimmia unicolor Hook. in Grev. onecolor dry rock moss 5/0
GRAR2 Grindelia arizonica Gray Arizona gumweed 2/0
GRCA Grindelia camporum Greene Great Valley gumweed 1/0
GRFA Grindelia fastigiata Greene pointed gumweed 3/0
GRFR Grindelia fraxinopratensis Reveal & Beatley Ash Meadows gumweed 2/0
GRGR Grindelia grandiflora Hook. manyray gumweed 1/0
GRHI Grindelia hirsutula Hook. & Arn. hairy gumweed 2/0
GRHO Grindelia howellii Steyermark Howell's gumweed 2/0
GRIN Grindelia integrifolia DC. Puget Sound gumweed 2/0
GRLA3 Grindelia lanceolata Nutt. narrowleaf gumweed 0/1
GRNUA Grindelia nuda Wood var. aphanactis (Rydb.) Nesom curlytop gumweed    
GRAP Grindelia aphanactis Rydb.   1/0
GRPA8 Grindelia papposa Nesom & Suh Spanish gold    
PRCI Prionopsis ciliata (Nutt.) Nutt.   1/1
GRSQ Grindelia squarrosa (Pursh) Dunal curlycup gumweed 6/1
GRSQS Grindelia squarrosa (Pursh) Dunal var. serrulata (Rydb.) Steyermark curlycup gumweed 1/0
GRSTP2 Grindelia stricta DC. var. platyphylla (Greene) M.A. Lane Oregon gumweed    
GRLA6 Grindelia latifolia Kellogg p.p.   2/0
GRSTV Grindelia stricta DC. ssp. venulosa (Jepson) Keck   1/0
GRSU Grindelia subalpina Greene subalpine gumweed 2/0
GRPU3 Grusonia pulchella (Engelm.) H. Robinson sagebrush cholla    
OPPU Opuntia pulchella Engelm.   5/0
GRSC6 Grusonia schottii (Engelm.) H. Robinson Big Bend pricklypear    
OPSC Opuntia schottii Engelm.   11/0
GUAN Guajacum angustifolium Engelm. Texas lignum-vitae    
POAN17 Porlieria angustifolia (Engelm.) Gray   2/0
GUDI Guapira discolor (Spreng.) Little beeftree    
TOLO2 Torrubia longifolia (Heimerl) Britton   1/0
GUFR Guapira fragrans (Dum.-Cours.) Little black mampoo 2/0
GUGL2 Guapira globosa (Small) Little roundleaf blolly 1/0
GUPL Guardiola platyphylla Gray Apache plant 2/0
GUGU Guarea guidonia (L.) Sleumer American muskwood 2/0
GUCO2 Guibourtia coleosperma (Benth.) J. Léonard Rhodesian copalwood 2/0
GUDE Guilleminea densa (Humb. & Bonpl. ex Willd.) Moq. small matweed 2/0
GULA4 Guillenia lasiophylla (Hook. & Arn.) Greene California mustard    
CALA35 Caulanthus lasiophyllus (Hook. & Arn.) Payson   1/0
THLA5 Thelypodium lasiophyllum (Hook. & Arn.) Greene   1/0
GUAB Guizotia abyssinica (L. f.) Cass. ramtilla 1/0
GUCO Gundlachia corymbosa (Urban) Britt. ex Boldingh yambush 1/0
GUIN Gunnera insignis Oerst. poorman's umbrella 1/0
GUMA3 Gunnera manicata Linden giant rhubarb 4/0
GUTI Gunnera tinctoria (Molina) Mirbel Chilean gunnera    
GUCH Gunnera chilensis Lam.   1/0
GUCA Gutierrezia californica (DC.) Torr. & Gray San Joaquin snakeweed 1/0
GUMI Gutierrezia microcephala (DC.) Gray threadleaf snakeweed 3/0
GUSA2 Gutierrezia sarothrae (Pursh) Britt. & Rusby broom snakeweed 10/1
GUZMA Guzmania Ruiz & Pavón tufted airplant 2/0
GUBE Guzmania berteriana (J.A. & J.H. Schultes) Mez Bertero's tufted airplant 3/0
GULI Guzmania lingulata (L.) Mez droophead tufted airplant 2/0
GYLA Gyminda latifolia (Sw.) Urban West Indian false box 1/0
GYLU Gymnanthes lucida Sw. oysterwood 2/0
GYDI2 Gymnocarpium disjunctum (Rupr.) Ching Pacific oakfern 1/0
GYDR Gymnocarpium dryopteris (L.) Newman western oakfern 1/0
DRDR2 Dryopteris dryopteris (L.) Britt.   0/1
GYRO Gymnocarpium robertianum (Hoffmann) Newman scented oakfern    
DRRO3 Dryopteris robertiana (Hoffmann) C. Christens.   0/1
GYMNO2 Gymnocladus Lam. coffeetree 0/1
GYDI Gymnocladus dioicus (L.) K. Koch Kentucky coffeetree 4/1
GYIN5 Gymnocolea inflata (Huds.) Dumort. 4/0
GYCO2 Gymnomitrion concinnatum (Lightf.) Corda 3/0
GYAM Gymnopogon ambiguus (Michx.) B.S.P. bearded skeletongrass 0/2
GYBR Gymnopogon brevifolius Trin. shortleaf skeletongrass 0/2
GYCH Gymnopogon chapmanianus A.S. Hitchc. Chapman's skeletongrass 0/1
GYNU Gymnosteris nudicaulis (Hook. & Arn.) Greene nakedstem gymnosteris 3/0
GYPA2 Gymnosteris parvula Heller smallflower gymnosteris 3/0
GYAE Gymnostomum aeruginosum Sm. gymnostomum moss 5/0
GYCA3 Gymnostomum calcareum Nees & Hornsch. in Nees et al. calcareous gymnostomum moss 3/0
GYSA Gynerium sagittatum (Aubl.) Beauv. wildcane 2/0
GYMU Gypsophila muralis L. low baby's-breath 0/1
GYPA Gypsophila paniculata L. baby's breath 0/1
GYTE Gyroweisia tenuis (Hedw.) Schimp. gyroweisia moss 6/0
HARE Habenaria repens Nutt. waterspider bog orchid 1/0
HARO4 Habranthus robustus Herbert ex Sweet Brazilian copperlily 1/0
HATU Habranthus tubispathus (L'Hér.) Traub Rio Grande copperlily    
HATE2 Habranthus texanus (Herbert) Herbert ex Steud. (pro syn.)   1/0
HACKE Hackelia Opiz stickseed 1/0
HACA Hackelia californica (Gray) I.M. Johnston California stickseed 1/0
HADEA Hackelia deflexa (Wahlenb.) Opiz var. americana (Gray) Fern. & I.M. Johnston American stickseed    
LADE9 Lappula deflexa (Wahlenb.) Garcke p.p.   0/1
HADIA Hackelia diffusa (Lehm.) I.M. Johnston var. arida (Piper) R.L. Carr sagebrush stickseed 1/0
HAFL2 Hackelia floribunda (Lehm.) I.M. Johnston manyflower stickseed 7/0
LAFL5 Lappula floribunda (Lehm.) Greene   0/1
HAMI Hackelia micrantha (Eastw.) J.L. Gentry Jessica sticktight 2/0
HAMU Hackelia mundula (Jepson) Ferris pink stickseed 2/0
HANE Hackelia nervosa (Kellogg) I.M. Johnston Sierra stickseed 4/0
HAVI2 Hackelia virginiana (L.) I.M. Johnston beggarslice    
LAVI7 Lappula virginiana (L.) Greene   0/1
HAGR3 Hackelochloa granularis (L.) Kuntze pitscale grass 0/1
HACA2 Haematoxylum campechianum L. bloodwoodtree 1/0
HASA2 Haenianthus salicifolius Griseb. palo de hueso 2/0
HACY Hainardia cylindrica (Willd.) W. Greuter barbgrass    
MOCY Monerma cylindrica (Willd.) Coss. & Durieu   2/1
HARO2 Hakea rostrata F. Muell. beaked pincushion tree 2/0
HADE2 Halenia deflexa (Sm.) Griseb. American spurred gentian 0/1
HALES Halesia Ellis ex L. silverbell 0/3
HACA3 Halesia carolina L. Carolina silverbell 12/2
HADI3 Halesia diptera Ellis two-wing silverbell 2/1
HATEM Halesia tetraptera Ellis var. monticola (Rehd.) Reveal & Seldin mountain silverbell    
HAMO3 Halesia monticola (Rehd.) Sarg.   5/0
HAHA8 Halimodendron halodendron (L. f.) Voss common salttree 1/0
HAGL Halogeton glomeratus (Bieb.) C.A. Mey. saltlover 2/0
HAMAM Hamamelis L. witchhazel 5/1
HAVE2 Hamamelis vernalis Sarg. Ozark witchhazel 2/0
HAVI4 Hamamelis virginiana L. American witchhazel 15/3
HAHA9 Hamatocactus hamatocanthus (Muhlph.) F.M. Kunth 1/0
HAVE70 Hamatocaulis vernicosus (Mitt.) Heden?s hamatocaulis moss 6/0
HAPA3 Hamelia patens Jacq. scarletbush 3/0
HAMA8 Hanguana malayana Merrill 1/0
HAGR4 Haploesthes greggii Gray false broomweed 1/1
HAPLO11 Haplopappus Cass. haplopappus 5/0
HACR3 Haplophyton crooksii (L. Benson) L. Benson cockroachplant    
HACI9 Haplophyton cimicidum auct. non A. DC. [misapplied]   1/0
HAPA7 Harpagonella palmeri Gray Palmer's grapplinghook 5/0
HAFL3 Harperocallis flava McDaniel Harper's beauty 3/0
HAAR4 Harpullia arborea (Blanco) Radlk. tulip-wood tree 5/0
HAHY2 Harrimanella hypnoides (L.) Coville mossplant 0/1
HAST3 Harrimanella stelleriana (Pallas) Coville Alaska bellheather 1/0
HAPO2 Harrisia portoricensis Britt. Puerto Rico applecactus 1/0
HASI Harrisia simpsonii Small Simpson's applecactus 3/0
HASU3 Hasteola suaveolens (L.) Pojark. false Indian plaintain    
CASU Cacalia suaveolens L.   1/0
SYSU Synosma suaveolens (L.) Raf. ex Britt.   0/1
HAAL2 Hastingsia alba (Dur.) S. Wats. white rushlily    
SCAL Schoenolirion album Dur.   2/0
HAGA Hatiora gaertneri (Regel) Barthlott Easter cactus    
SCGA4 Schlumbergera gaertneri (Regel) Britton & Rose   1/0
HABR3 Hazardia brickellioides (Blake) W.D. Clark brickellbush goldenweed 2/0
HACA6 Hazardia cana (Gray) Greene island hazardia 1/0
HACA4 Haplopappus canus (Gray) Blake   1/0
HADE4 Hazardia detonsa (Greene) Greene island bristleweed 2/0
HESP Hebe speciosa (R. Cunningham ex A. Cunningham) J.C. Andersen New Zealand hebe 1/0
HEVE7 Hebe venustula (Colenso) Cockayne 1/0
HETE7 Hechtia texensis S. Wats. Texas false agave 2/0
HEDR Hedeoma drummondii Benth. Drummond's false pennyroyal 2/0
HELO9 Hedeoma longiflora Rydb.   0/1
HEHI Hedeoma hispida Pursh rough false pennyroyal 1/1
HENA Hedeoma nana (Torr.) Briq. dwarf false pennyroyal 1/0
HENAC Hedeoma nana (Torr.) Briq. ssp. californica W.S. Stewart California false pennyroyal 2/0
HEOB Hedeoma oblongifolia (Gray) Heller oblongleaf false pennyroyal 2/0
HEPL Hedeoma plicata Torr. veiny false pennyroyal 1/0
HEPU Hedeoma pulegioides (L.) Pers. American false pennyroyal 2/1
HETO2 Hedeoma todsenii Irving Todsen's false pennyroyal 2/0
HEHE Hedera helix L. English ivy 6/0
HEHEC Hedera helix L. ssp. canariensis (Willd.) Cout. Canary ivy    
HECA37 Hedera canariensis Willd.   1/0
HECI5 Hedwigia ciliata (Hedw.) P. Beauv. ciliate hedwigia moss 5/0
HECO11 Hedychium coronarium Koenig white garland-lily 4/0
HEFL5 Hedychium flavescens Carey ex Roscoe cream garland-lily 2/0
HEGA Hedychium gardnerianum Shepard ex Ker-Gawl. Kahila garland-lily 1/0
HEAR Hedyosmum arborescens Sw. cigarbush 5/0
HEBO Hedysarum boreale Nutt. Utah sweetvetch 6/1
HEBOM Hedysarum boreale Nutt. ssp. mackenziei (Richards.) Welsh northern sweetvetch    
HEMA Hedysarum mackenziei Richards.   2/0
HELO11 Heisteria longipes Standl. 1/0
HEAM Helenium amarum (Raf.) H. Rock yellowdicks 4/0
HEAMA Helenium amarum (Raf.) H. Rock var. amarum yellowdicks    
HETE14 Helenium tenuifolium Nutt.   0/1
HEAMB2 Helenium amarum (Raf.) H. Rock var. badium (Gray ex S. Wats.) Waterfall yellowdicks 1/0
HEAU Helenium autumnale L. common sneezeweed 8/2
HEBI Helenium bigelovii Gray Bigelow's sneezeweed 7/0
HEDR2 Helenium drummondii H. Rock fringed sneezeweed 6/0
HEELA Helenium elegans DC. var. amphilobum (Gray) Bierner pretty sneezeweed 1/0
HEFL Helenium flexuosum Raf. purplehead sneezeweed 10/1
HENU3 Helenium nudiflorum Nutt.   1/1
HEMIO2 Helenium microcephalum DC. var. ooclinium (Gray) Bierner smallhead sneezeweed    
HEOO2 Helenium ooclinium Gray   1/0
HEQU Helenium quadridentatum Labill. longdisk sneezeweed 3/0
HEVE Helenium vernale Walt. savannah sneezeweed 1/0
HECAN2 Helianthella californica Gray ssp. nevadensis (Greene) W.A. Weber Nevada helianthella    
HECAN Helianthella californica Gray var. nevadensis (Greene) Jepson   5/0
HECA2 Helianthella castanea Greene Mt. Diablo helianthella 2/0
HEQU2 Helianthella quinquenervis (Hook.) A. Gray fivenerve helianthella 2/0
HEUN Helianthella uniflora (Nutt.) Torr. & Gray oneflower helianthella 2/0
HEUND Helianthella uniflora (Nutt.) Torr. & Gray var. douglasii (Torr. & Gray) W.A. Weber Douglas' helianthella 1/0
HEBI2 Helianthemum bicknellii Fern. hoary frostweed    
CRMA17 Crocanthemum majus sensu Britt.   0/1
HECA3 Helianthemum canadense (L.) Michx. longbranch frostweed 1/0
CRCA15 Crocanthemum canadense (L.) Britt.   0/1
HECA4 Helianthemum carolinianum (Walter) Michx. Carolina frostweed 3/0
HECO3 Helianthemum corymbosum Michx. pine barren frostweed    
CRCO28 Crocanthemum corymbosum (Michx.) Britt.   0/1
HELIA3 Helianthus L. sunflower 2/0
HEAN2 Helianthus angustifolius L. swamp sunflower 9/3
HEAN3 Helianthus annuus L. common sunflower 14/2
HEAR3 Helianthus argophyllus Torr. & Gray silverleaf sunflower 1/0
HEAT Helianthus atrorubens L. purpledisk sunflower 2/1
HECI Helianthus ciliaris DC. Texas blueweed 1/0
HEDE4 Helianthus debilis Nutt. cucumberleaf sunflower 1/0
HEDEC2 Helianthus debilis Nutt. ssp. cucumerifolius (Torr. & Gray) Heiser cucumberleaf sunflower 1/0
HECU7 Helianthus cucumerifolius Torr. & Gray   1/0
HEDED Helianthus debilis Nutt. ssp. debilis cucumberleaf sunflower 1/0
HEDE Helianthus decapetalus L. thinleaf sunflower 1/1
HETR8 Helianthus tracheliifolius P. Mill.   0/1
HEDI2 Helianthus divaricatus L. woodland sunflower 2/1
HEDO Helianthus ×doronicoides Lam. (pro sp.) [giganteus × mollis] 0/1
HEEG Helianthus eggertii Small Eggert's sunflower 3/0
HEGI Helianthus giganteus L. giant sunflower 2/1
HESU10 Helianthus subtuberosus (Britt.) Britt.   0/1
HEGR3 Helianthus gracilentus Gray slender sunflower 1/0
HEGR4 Helianthus grosseserratus Martens sawtooth sunflower 2/2
HEHI2 Helianthus hirsutus Raf. hairy sunflower 4/1
HEKE2 Helianthus ×kellermanii Britt. (pro sp.) [grosseserratus × salicifolius] 0/1
HELA Helianthus ×laetiflorus Pers. (pro sp.) [pauciflorus × tuberosus] cheerful sunflower    
HESC13 Helianthus scaberrimus Ell.   1/1
HELA2 Helianthus laevigatus Torr. & Gray smooth sunflower 0/1
HEMA2 Helianthus maximiliani Schrad. Maximilian sunflower 4/1
HEDA2 Helianthus dalyi Britt.   0/1
HEMI3 Helianthus microcephalus Torr. & Gray small woodland sunflower 1/1
HEMO2 Helianthus mollis Lam. ashy sunflower 4/1
HENU Helianthus nuttallii Torr. & Gray Nuttall's sunflower 2/1
HENUN Helianthus nuttallii Torr. & Gray ssp. nuttallii Nuttall's sunflower 2/0
HEOC2 Helianthus occidentalis Riddell fewleaf sunflower 2/1
HEPAP2 Helianthus pauciflorus Nutt. ssp. pauciflorus stiff sunflower    
HELAR Helianthus laetiflorus Pers. var. rigidus (Cass.) Fern.   0/1
HEPAS Helianthus pauciflorus Nutt. ssp. subrhomboideus (Rydb.) O. Spring & E. Schilling stiff sunflower    
HESU11 Helianthus subrhomboideus Rydb.   0/1
HEPE Helianthus petiolaris Nutt. prairie sunflower 4/1
HERE5 Helianthus resinosus Small resindot sunflower    
HETO3 Helianthus tomentosus auct. non Michx. [misapplied]   1/0
HESA2 Helianthus salicifolius A. Dietr. willowleaf sunflower 1/0
HEOR4 Helianthus orgyalis DC.   0/1
HEST Helianthus strumosus L. paleleaf woodland sunflower 2/1
HETU Helianthus tuberosus L. Jerusalem artichoke 12/3
HETO4 Helianthus tomentosus Michx.   0/1
HELIC4 Helichrysum P. Mill. strawflower 4/0
HEFO7 Helichrysum formosissimum Sch. Bip. everlasting-flower 1/0
HELIC2 Heliconia L. heliconia 1/0
HEBI4 Heliconia bihai (L.) L. macawflower 4/0
HEHU3 Heliconia humilis (Aubl.) Jacq.   2/0
HECA10 Heliconia caribaea Lam. lobsterclaw 5/0
HECO31 Heliconia collinsiana Griggs platanillo 3/0
HEDE16 Heliconia deflexa G.S. Daniels & F.G. Stiles wild plantain 1/0
HEIR Heliconia irrasa R.R. Sm. wild plantain 3/0
HELA12 Heliconia latispatha Benth. expanded lobsterclaw 3/0
HEME4 Heliconia metallica Planch. & Linden ex Hook. shining bird of paradise 1/0
HEPL5 Heliconia platystachys Baker false bird of paradise 1/0
HEPS2 Heliconia psittacorum L. f. parakeetflower 3/0
HERO7 Heliconia rostrata Ruiz & Pavón false bird of paradise 1/0
HEWA2 Heliconia wagneriana Peterson 1/0
HEEL7 Heliconia elongata Griggs   3/0
HEMO3 Helictotrichon mortonianum (Scribn.) Henr. Morton's alpine oatgrass 0/1
HELOA2 Heliomeris longifolia (Robins. & Greenm.) Cockerell var. annua (M.E. Jones) Yates longleaf false goldeneye 1/0
HEMU3 Heliomeris multiflora Nutt. showy goldeneye 2/0
HEMUM Heliomeris multiflora Nutt. var. multiflora showy goldeneye 3/0
VIMU Viguiera multiflora (Nutt.) Blake   5/0
HEMUN Heliomeris multiflora Nutt. var. nevadensis (A. Nels.) Yates Nevada goldeneye 4/0
HEHE5 Heliopsis helianthoides (L.) Sweet smooth oxeye 10/1
HEHES Heliopsis helianthoides (L.) Sweet var. scabra (Dunal) Fern. smooth oxeye    
HESC14 Heliopsis scabra Dunal   0/1
HELIO3 Heliotropium L. heliotrope 3/0
HEAM4 Heliotropium amplexicaule Vahl clasping heliotrope 1/0
HEAN8 Heliotropium anomalum Hook. & Arn. Polynesian heliotrope 1/0
HEAR16 Heliotropium arborescens L. garden heliotrope 1/0
HECO5 Heliotropium convolvulaceum (Nutt.) Gray phlox heliotrope 2/1
HECU3 Heliotropium curassavicum L. salt heliotrope 8/2
HECUO2 Heliotropium curassavicum L. var. obovatum DC. seaside heliotrope    
HESP2 Heliotropium spathulatum Rydb.   0/1
HEEU Heliotropium europaeum L. European heliotrope 0/1
HEIN Heliotropium indicum L. Indian heliotrope 5/1
HELA11 Heliotropium lagoense (Warm.) Guerke Antilles heliotrope 1/0
HETE3 Heliotropium tenellum (Nutt.) Torr. pasture heliotrope 3/1
HETE10 Heliotropium ternatum Vahl bushy heliotrope 2/0
HEUN8 Heliotropium undulatifolium Turrill turnsole heliotrope 1/0
HEFO8 Helleborus foetidus L. setterwort 2/0
HENI6 Helleborus niger L. black hellebore 4/0
HEOR3 Helleborus orientalis Lam. lenten-rose 1/0
HEVI Helleborus viridis L. green hellebore 0/1
HEBL2 Helodium blandowii (Web. & Mohr) Warnst. Blandow's helodium moss 3/0
HEBU Helonias bullata L. swamppink 2/1
HEAL5 Hemarthria altissima (Poir.) Stapf & C.E. Hubbard limpograss    
MAAL11 Manisuris altissima (Poir.) A.S. Hitchc.   0/1
HEMER Hemerocallis L. daylily 1/0
HECI9 Hemerocallis citrina Baroni citron daylily 1/0
HEFU Hemerocallis fulva (L.) L. orange daylily 1/1
HELI4 Hemerocallis lilioasphodelus L. yellow daylily    
HEFL13 Hemerocallis flava (L.) L.   3/0
HEFR5 Hemichaena fruticosa Benth. 1/0
HECO6 Hemitomes congestum A. Gray coneplant 1/0
HEMI20 Hemizonella minima (Gray) Gray oppositeleaved tarweed    
MAMI Madia minima (Gray) Keck   2/0
HECOL3 Hemizonia congesta DC. ssp. luzulifolia (DC.) Babcock & Hall hayfield tarweed 2/0
HEFA Hemizonia fasciculata (DC.) Torr. & Gray clustered tarweed 3/0
HENO2 Hepatica nobilis Schreb. hepatica 4/0
HENOA Hepatica nobilis Schreb. var. acuta (Pursh) Steyermark sharplobe hepatica 1/0
HEAC4 Hepatica acutiloba DC.   7/1
HENOO Hepatica nobilis Schreb. var. obtusa (Pursh) Steyermark roundlobe hepatica 2/0
HEAM8 Hepatica americana (DC.) Ker-Gawl.   2/0
HEHE8 Hepatica hepatica (L.) Karst.   0/1
HEPPI Heppia Nageli heppia lichen 1/0
HERAC Heracleum L. cowparsnip 1/0
HEMA17 Heracleum mantegazzianum Sommier & Levier giant hogweed 1/0
HEMA80 Heracleum maximum Bartr. common cowparsnip 5/1
HELA4 Heracleum lanatum Michx.   3/1
HESP6 Heracleum sphondylium L. eltrot 1/0
HELA6 Herbertia lahue (Molina) Goldblatt prairienymph 4/0
HESE9 Herbertus sendtneri (Nees) Lindb. 2/0
HECR3 Herissantia crispa (L.) Briz. bladdermallow 2/0
HEAC9 Heritiera actinophylla (F.M. Bailey) Kosterm. black booyong 4/0
HESO Hernandia sonora L. mago 1/0
HESE6 Herzogiella seligeri (Brid.) Iwats. Seliger's herzogiella moss 6/0
HEST5 Herzogiella striatella (Brid.) Iwats. herzogiella moss 3/0
HEFU2 Hesperaloe funifera (Lem.) Trel. New Mexico false yucca 1/0
HEPA8 Hesperaloe parviflora (Torr.) Coult. redflower false yucca 6/0
HECA30 Hesperevax caulescens (Benth.) Gray dwarf dwarf-cudweed 1/0
HEMA3 Hesperis matronalis L. dames rocket 4/1
HESPE3 Hesperocallis Gray desert lily 1/0
HEUN2 Hesperocallis undulata Gray desert lily 9/0
HECA7 Hesperochiron californicus (Benth.) S. Wats. California hesperochiron 5/0
HEPU6 Hesperochiron pumilus (Dougl. ex Griseb.) Porter dwarf hesperochiron 4/0
HECO12 Hesperolinon congestum (Gray) Small Marin dwarf-flax 2/0
HECOC8 Hesperostipa comata (Trin. & Rupr.) Barkworth ssp. comata needle and thread 7/0
STCO4 Stipa comata Trin. & Rupr.   1/2
HENE5 Hesperostipa neomexicana (Thurb. ex Coult.) Barkworth New Mexico feathergrass    
STNE2 Stipa neomexicana (Thurb. ex Coult.) Scribn.   0/1
HESP11 Hesperostipa spartea (Trin.) Barkworth porcupinegrass    
STSP2 Stipa spartea Trin.   1/2
HEWH Hesperoyucca whipplei (Torr.) Baker chaparral yucca    
YUWH Yucca whipplei Torr.   15/0
YUWHP3 Yucca whipplei Torr. var. parishii M.E. Jones   1/0
YUWHW Yucca whipplei Torr. var. whipplei Torr. [superfluous autonym]   3/0
HEDU2 Heteranthera dubia (Jacq.) MacM. grassleaf mudplantain 1/1
HELI2 Heteranthera limosa (Sw.) Willd. blue mudplantain 1/1
HEPE3 Heteranthera peduncularis Benth. egret mudplantain 0/1
HERE Heteranthera reniformis Ruiz & Pavón kidneyleaf mudplantain 2/2
HEDI8 Heterocladium dimorphum (Brid.) Schimp. in B.S.G. heterocladium moss 3/0
HEAR5 Heteromeles arbutifolia (Lindl.) M. Roemer toyon 10/0
HEARA2 Heteromeles arbutifolia (Lindl.) M. Roemer var. arbutifolia toyon    
PHAR11 Photinia arbutifolia Lindl.   0/2
HETER6 Heteropogon Pers. tanglehead 1/0
HECO10 Heteropogon contortus (L.) Beauv. ex Roemer & J.A. Schultes tanglehead 4/1
HEME Heteropogon melanocarpus (Ell.) Ell. ex Benth. sweet tanglehead 1/1
HELA22 Heteropterys laurifolia (L.) A. Juss. dragon withe 2/0
HEPU17 Heteropterys purpurea (L.) Kunth bull withe 2/0
HEWY2 Heteropterys wydleriana A. Juss. ahorca caballo 2/0
HEFU3 Heterotheca fulcrata (Greene) Shinners rockyscree false goldenaster 1/0
HEGR7 Heterotheca grandiflora Nutt. telegraphweed 1/0
HESTS Heterotheca stenophylla (Gray) Shinners var. stenophylla stiffleaf false goldenaster    
CHST7 Chrysopsis stenophylla (Gray) Greene   0/1
HESU3 Heterotheca subaxillaris (Lam.) Britt. & Rusby camphorweed 3/1
HEVI4 Heterotheca villosa (Pursh) Shinners hairy false goldenaster 7/0
HEVIM3 Heterotheca villosa (Pursh) Shinners var. minor (Hook.) Semple hairy false goldenaster    
CHHI5 Chrysopsis hispida (Hook.) DC.   0/1
HEVIV Heterotheca villosa (Pursh) Shinners var. villosa hairy false goldenaster    
CHVI10 Chrysopsis villosa (Pursh) Nutt. ex DC.   0/1
HEUCH Heuchera L. alumroot 1/0
HEAM6 Heuchera americana L. American alumroot 2/1
HEAMA2 Heuchera americana L. var. americana American alumroot    
HECU4 Heuchera curtisii Torr. & Gray ex Gray   0/1
HEAMH Heuchera americana L. var. hirsuticaulis (Wheelock) Rosendahl, Butters & Lakela American alumroot    
HEHI3 Heuchera hirsuticaulis (Wheelock) Rydb.   0/1
HEAMH2 Heuchera americana L. var. hispida (Pursh) E. Wells American alumroot    
HEHI5 Heuchera hispida Pursh   0/1
HEBR2 Heuchera bracteata (Torr.) Ser. bracted alumroot 1/0
HEBR3 Heuchera brevistaminea Wiggins Laguna Mountain alumroot 2/0
HECY2 Heuchera cylindrica Dougl. ex Hook. roundleaf alumroot 3/0
HECYA Heuchera cylindrica Dougl. ex Hook. var. alpina Sw. alpine alumroot 4/0
HEGL5 Heuchera glabra Willd. ex Roem. & Schult. alpine heuchera 1/0
HELO5 Heuchera longiflora Rydb. longflower alumroot 0/1
HEMA4 Heuchera maxima Greene Jill of the rocks 9/0
HEMI7 Heuchera micrantha Dougl. ex Lindl. crevice alumroot 2/0
HEMID2 Heuchera micrantha Douglas ex Lindl. var. diversifolia (Rydb.) Rosend., Butters & Lakela crevice alumroot 1/0
HENO Heuchera novomexicana Wheelock New Mexico alumroot 1/0
HEPA10 Heuchera parviflora Bartl. littleflower alumroot 1/1
HEPAP5 Heuchera parviflora Bartl. var. puberula (Mackenzie & Bush) E. Wells littleflower alumroot    
HEPU9 Heuchera puberula Mackenzie & Bush   0/1
HEPAU Heuchera parvifolia Nutt. ex Torr. & Gray var. utahensis (Rydb.) Garrett Utah alumroot 2/0
HEPI3 Heuchera pilosissima Fisch. & C.A. Mey. seaside alumroot 2/0
HEPU7 Heuchera pubescens Pursh downy alumroot 0/1
HEPU10 Heuchera pulchella Woot. & Standl. Sandia Mountain alumroot 2/0
HERU Heuchera rubescens Torr. pink alumroot 6/0
HERUV Heuchera rubescens Torr. var. versicolor (Greene) M.G. Stewart pink alumroot    
HEVE2 Heuchera versicolor Greene   3/0
HESA3 Heuchera sanguinea Engelm. coralbells 3/0
HEVI2 Heuchera villosa Michx. hairy alumroot 2/1
HEVIV2 Heuchera villosa Michx. var. villosa hairy alumroot    
HEMA14 Heuchera macrorhiza Small   0/1
HESP3 Hexalectris spicata (Walt.) Barnh. spiked crested coralroot 3/1
HEAR6 Hexastylis arifolia (Michx.) Small littlebrownjug 0/1
HEARA Hexastylis arifolia (Michx.) Small var. arifolia littlebrownjug    
ASAR10 Asarum arifolium Michx.   1/0
HESH2 Hexastylis shuttleworthii (Britten & Baker) Small largeflower heartleaf 1/1
HESHS Hexastylis shuttleworthii (Britten & Baker) Small var. shuttleworthii largeflower heartleaf 2/0
HEVI3 Hexastylis virginica (L.) Small Virginia heartleaf 0/1
HEME7 Hexastylis memmingeri (Ashe) Small   0/1
HIBIS2 Hibiscus L. rosemallow 18/0
HIAC Hibiscus aculeatus Walt. comfortroot 5/0
HICA6 Hibiscus calyphyllus Cav. lemonyellow rosemallow 1/0
HICA5 Hibiscus cannabinus L. brown Indianhemp 1/0
HICO2 Hibiscus coccineus Walt. scarlet rosemallow 3/0
HIDE Hibiscus denudatus Benth. paleface 12/0
HIEL Hibiscus elatus Sw. mahoe 2/0
HILA2 Hibiscus laevis All. halberdleaf rosemallow 4/1
HIMI2 Hibiscus militaris Cav.   3/1
HILA6 Hibiscus lasiocarpos Cav. rosemallow 1/1
HICA7 Hibiscus californicus Kellogg   1/0
HIMO Hibiscus moscheutos L. crimsoneyed rosemallow 6/2
HIIN5 Hibiscus incanus Wendl. f.   0/1
HIMOM Hibiscus moscheutos L. ssp. moscheutos L. [superfluous autonym]   3/0
HIMOP Hibiscus moscheutos L. ssp. palustris (L.) Clausen   1/0
HIOC2 Hibiscus oculiroseus Britt.   0/1
HIPA6 Hibiscus palustris L.   2/0
HIMU3 Hibiscus mutabilis L. Dixie rosemallow 2/0
HIRO3 Hibiscus rosa-sinensis L. shoeblackplant 13/0
HISA2 Hibiscus sabdariffa L. roselle 2/0
HISC3 Hibiscus schizopetalus (Dyer) Hook. f. fringed rosemallow 5/0
HISY Hibiscus syriacus L. rose of Sharon 1/1
HITI Hibiscus tiliaceus L. sea hibiscus 7/0
HITR4 Hibiscus trilobus Aubl. threelobe rosemallow 2/0
HITR Hibiscus trionum L. flower of an hour 4/1
HIVI Hibiscus vitifolius L. tropical rose mallow 5/0
HIERA Hieracium L. hawkweed 4/0
HIAL2 Hieracium albiflorum Hook. white hawkweed 2/0
HIAU Hieracium aurantiacum L. orange hawkweed 2/1
HICA10 Hieracium caespitosum Dumort. meadow hawkweed    
HIPR Hieracium pratense Tausch   1/1
HICA3 Hieracium canadense Michx. Canadian hawkweed 0/1
HIFEF Hieracium fendleri Schultz-Bip. var. fendleri yellow hawkweed    
CHFE5 Chlorocrepis fendleri (Schultz-Bip.) W.A. Weber   7/0
HIFL3 Hieracium ×floribundum Wimmer & Grab. (pro sp.) [caespitosum × lactucella] 0/1
HIGRG Hieracium gracile Hook. var. gracile slender hawkweed 1/0
HIGR5 Hieracium greenii Porter & Britt. Maryland hawkweed 0/1
HIGR3 Hieracium gronovii L. queendevil 7/1
HIHO Hieracium horridum Fries prickly hawkweed 1/0
HILA8 Hieracium lachenalii K.C. Gmel. common hawkweed    
HIVU Hieracium vulgatum Fries   0/1
HILO2 Hieracium longipilum Torr. hairy hawkweed 0/1
HIMA10 Hieracium marianum Willd. Maryland hawkweed    
HIMA Hieracium ×marianum Willd. (pro sp.) [not hybrid]   0/1
HIMU Hieracium murorum L. wall hawkweed 0/1
HIPA2 Hieracium paniculatum L. Allegheny hawkweed 0/1
HIPI Hieracium pilosella L. mouseear hawkweed 0/1
HIPI2 Hieracium piloselloides Vill. tall hawkweed    
HIFL Hieracium florentinum All.   0/1
HISC Hieracium scabrum Michx. rough hawkweed 3/1
HISC2 Hieracium scouleri Hook. Scouler's woollyweed 3/0
HIUM Hieracium umbellatum L. narrowleaf hawkweed    
HISC8 Hieracium scabriusculum Schwein.   0/1
HIVE Hieracium venosum L. rattlesnakeweed 1/1
HIOC Hierochloe occidentalis Buckl. California sweetgrass 0/1
HIOD Hierochloe odorata (L.) Beauv. sweetgrass 1/1
SANA2 Savastana nashii Bickn.   0/1
SAOD3 Savastana odorata (L.) Scribn.   0/1
HIPA3 Hierochloe pauciflora R. Br. arctic sweetgrass    
SAPA17 Savastana pauciflora (R. Br.) Scribn. & Merr.   0/1
HIBE Hilaria belangeri (Steud.) Nash curly-mesquite 0/1
HISW Hilaria swallenii Cory Swallen's curly-mesquite 0/1
HIPU Hippeastrum puniceum (Lam.) Kuntze Barbados lily 3/0
HIEQ Hippeastrum equestre (Aiton) Herb.   1/0
HIVI3 Hippeastrum vittatum (L'Hér.) Herbert [excluded] 1/0
HILO3 Hippobroma longiflora (L.) G. Don madamfate 7/0
HIVO Hippocratea volubilis L. medicine vine 1/0
HIPPO Hippomane L. hippomane 1/0
HIMA2 Hippomane mancinella L. manchineel 4/0
HIPPO4 Hippophae L. seaberry 1/2
HIRH80 Hippophae rhamnoides L. seaberry 7/0
HITE Hippuris tetraphylla L. f. fourleaf mare's-tail 0/1
HIVU2 Hippuris vulgaris L. common mare's-tail 4/2
HIBE2 Hiptage benghalensis (L.) Kurz hiptage 1/0
HIRU2 Hirtella rugosa Thuill. ex Pers. teta de burra cinarron 3/0
HODR Hoffmannseggia drepanocarpa Gray sicklepod holdback 1/0
HOGL2 Hoffmannseggia glauca (Ortega) Eifert Indian rushpea    
HOFA3 Hoffmannseggia falcaria Cav.   0/1
HOMA4 Hoita macrostachya (DC.) Rydb. large leather-root    
PSMA2 Psoralea macrostachya DC.   2/0
HOPU7 Holarrhena pubescens (Buch.-Ham.) Wallich ex G. Don holarrhena 1/0
HOLCU Holcus L. velvetgrass 1/0
HOLA Holcus lanatus L. common velvetgrass 5/1
NOLA2 Nothoholcus lanatus (L.) Nash   0/1
HOPE2 Holmgrenanthe petrophila (Coville & Morton) Elisens rocklady    
MAPE7 Maurandella petrophila (Coville & Morton) Rothm.   3/0
MAPE Maurandya petrophila Coville & Morton   3/0
HOSA2 Holmskioldia sanguinea Retz. Chinese hatplant 3/0
HOHE Holocarpha heermannii (Greene) Keck Heermann's tarweed 1/0
HOVI Holocarpha virgata (Gray) Keck yellowflower tarweed 1/0
HOLOD Holodiscus (K. Koch) Maxim. oceanspray 1/0
HODI Holodiscus discolor (Pursh) Maxim. oceanspray 5/1
HODIG Holodiscus discolor (Pursh) Maxim. var. glabrescens (Greenm.) Jepson   1/0
HOMI3 Holodiscus microphyllus Rydb.   2/0
HOMIG Holodiscus microphyllus Rydb. var. glabrescens (Greenm.) Ley   1/0
HODU Holodiscus dumosus (Nutt. ex Hook.) Heller rockspirea 11/0
HOUM Holosteum umbellatum L. jagged chickweed 1/1
HOTR4 Homalia trichomanoides (Hedw.) Schimp. in B.S.G. homalia moss 4/0
HOSE5 Homalothecium sericeum (Hedw.) Schimp. in B.S.G. silken homalothecium moss 5/0
HOGL3 Homolepis glutinosa (Sw.) F. Zuloaga & Soderstr. sticky panicgrass    
PAGL2 Panicum glutinosum Sw.   2/0
HOIN5 Homomallium incurvatum (Brid.) Loeske homomallium moss 3/0
HOPE Honckenya peploides (L.) Ehrh. seaside sandplant 2/1
HOLU Hookeria lucens (Hedw.) Sm. hookeria moss 3/0
HORDE Hordeum L. barley 2/0
HOAR Hordeum arizonicum Covas Arizona barley 0/1
HOBR2 Hordeum brachyantherum Nevski meadow barley 2/1
HOBRB2 Hordeum brachyantherum Nevski ssp. brachyantherum meadow barley    
HONO Hordeum nodosum L. p.p.   2/1
HOBU Hordeum bulbosum L. bulbous barley 2/0
HODE2 Hordeum depressum (Scribn. & J.G. Sm.) Rydb. dwarf barley 1/1
HOIN2 Hordeum intercedens Nevski bobtail barley 2/0
HOJU Hordeum jubatum L. foxtail barley 7/3
HOJUI Hordeum jubatum L. ssp. intermedium Bowden intermediate barley    
HOJUC Hordeum jubatum L. var. caespitosum (Scribn. ex Pammel) Hitchc.   2/0
HOJUJ Hordeum jubatum L. ssp. jubatum foxtail barley 2/0
HOMA2 Hordeum marinum Huds. seaside barley 2/0
HOMAG Hordeum marinum Huds. ssp. gussonianum (Parl.) Thell. Mediterranean barley    
HOGU Hordeum gussonianum Parl.   2/0
HOHY Hordeum hystrix Roth   0/1
HOMU Hordeum murinum L. mouse barley 1/1
HOMUG Hordeum murinum L. ssp. glaucum (Steud.) Tzvelev smooth barley 1/0
HOST Hordeum stebbinsii Covas   2/0
HOMUL Hordeum murinum L. ssp. leporinum (Link) Arcang. leporinum barley    
HOLE Hordeum leporinum Link   1/1
HOPU Hordeum pusillum Nutt. little barley 3/3
HOSP Hordeum spontaneum K. Koch spontaneous barley 1/0
HOVU Hordeum vulgare L. common barley 2/1
HOVUT Hordeum vulgare L. var. trifurcatum (Schlecht.) Alef.   1/1
HOBO2 Horkelia bolanderi Gray border horkelia 1/0
HOCAD Horkelia californica Cham. & Schlecht. ssp. dissita (Crum) Ertter California horkelia    
HOEL Horkelia elata (Greene) Rydb.   2/0
HOCAF2 Horkelia californica Cham. & Schlecht. ssp. frondosa (Greene) Ertter California horkelia 2/0
HOCU Horkelia cuneata Lindl. wedgeleaf horkelia 3/0
HOFU Horkelia fusca Lindl. pinewoods horkelia 3/0
HOFUF2 Horkelia fusca Lindl. ssp. fusca pinewoods horkelia 1/0
HOHE2 Horkelia hendersonii T.J. Howell Henderson's horkelia 2/0
HOHI Horkelia hispidula Rydb. White Mountain horkelia 2/0
HOMA3 Horkelia marinensis (Elmer) Crum ex Keck Point Reyes horkelia 2/0
HOCO5 Horkeliella congdonis (Rydb.) Rydb. Congdon's false horkelia 2/0
HOPR4 Hornungia procumbens (L.) Hayek prostrate hutchinsia    
HUPR Hutchinsia procumbens (L.) Desv.   1/1
HOLA3 Hosta lancifolia (Thunb.) Engl. narrowleaf plantain lily    
HOJA2 Hosta japonica (Thunb.) Voss, nom. ambig., non Tratt.   1/0
HOVE Hosta ventricosa (Salisb.) Stearn blue plantain lily 1/0
HOIN Hottonia inflata Ell. American featherfoil 2/2
HOACA2 Houstonia acerosa (Gray) Gray ex Benth. & Hook. f. var. acerosa needleleaf bluet    
HEAC5 Hedyotis acerosa Gray   2/0
HOCA4 Houstonia caerulea L. azure bluet 5/1
HOCA5 Houstonia canadensis Willd. ex Roemer & J.A. Schultes Canadian summer bluet 1/0
HOCI Houstonia ciliolata Torr.   0/1
HOLO Houstonia longifolia Gaertn. longleaf summer bluet 0/1
HOTE3 Houstonia tenuifolia Nutt.   0/1
HOMI4 Houstonia micrantha (Shinners) Terrell southern bluet 1/0
HOPR Houstonia procumbens (Walt. ex J.F. Gmel.) Standl. roundleaf bluet 2/0
HOPU2 Houstonia purpurea L. Venus' pride 4/1
HOPUC Houstonia purpurea L. var. calycosa Gray Venus' pride    
HOLA5 Houstonia lanceolata (Poir.) Britt.   0/1
HOPUP3 Houstonia purpurea L. var. purpurea Venus' pride    
HEPU16 Hedyotis purpurea (L.) Torr. & Gray   1/0
HOPU3 Houstonia pusilla Schoepf tiny bluet 1/0
HOMI2 Houstonia minima Beck   0/1
HOPA6 Houstonia patens Ell.   0/1
HORU Houstonia rubra Cav. red bluet 1/0
HOSE2 Houstonia serpyllifolia Michx. thymeleaf bluet 1/1
HOWR Houstonia wrightii Gray pygmy bluet 3/0
HODU2 Hovenia dulcis Thunb. Japanese raisintree 3/0
HOCA6 Hoya carnosa (L. f.) R. Br. porcelainflower 2/0
HUER Hudsonia ericoides L. pine barren goldenheather 6/1
HUERA Hudsonia ericoides L. ssp. andersonii Nickerson & Skog   1/0
HUMO Hudsonia montana Nutt. mountain goldenheather 3/0
HUTO Hudsonia tomentosa Nutt. woolly beachheather 2/1
HUAL Hulsea algida Gray Pacific hulsea 2/0
HUBR Hulsea brevifolia Gray shortleaf alpinegold 1/0
HUVE Hulsea vestita Gray pumice alpinegold 4/0
HUVEI Hulsea vestita Gray ssp. inyoensis (Keck) Wilken pumice alpinegold 3/0
HUMUL Humulus L. hop 1/0
HUJA Humulus japonicus Sieb. & Zucc. Japanese hop 1/0
HULU Humulus lupulus L. common hop 1/1
HULUL Humulus lupulus L. var. lupuloides E. Small common hop    
HUAM Humulus americanus Nutt.   1/0
HULU2 Huperzia lucidula (Michx.) Trevisan shining clubmoss 4/1
LYLU Lycopodium lucidulum Michx.   1/1
HUPO2 Huperzia porophila (Lloyd & Underwood) Holub rock clubmoss    
LYPO Lycopodium porophilum Lloyd & Underwood   0/1
HUSED Huperzia selago (L.) Bernh. ex Schrank & Mart. var. densa Trevisan fir clubmoss    
LYSEA Lycopodium selago L. var. appressum Desv.   1/0
HUSES Huperzia selago (L.) Bernh. ex Mart. & Schrank var. selago fir clubmoss 1/0
LYSE Lycopodium selago L.   0/1
HUCR Hura crepitans L. sandbox tree 10/0
HYACI Hyacinthoides Medik. hyacinthoides 1/0
HYHI5 Hyacinthoides hispanica (P. Mill.) Rothm. Hispanic hyacinthoides 2/0
HYNO Hyacinthoides nonscripta (L.) Chouard ex Rothm. English bluebell    
ENNO Endymion nonscripta (L.) Garcke   4/0
HYACI2 Hyacinthus L. hyacinth 1/0
HYOR Hyacinthus orientalis L. garden hyacinth 1/0
HYCO6 Hybanthus concolor (T.F. Forst.) Spreng. eastern greenviolet 1/0
CUCO5 Cubelium concolor (T.F. Forst.) Raf.   0/1
HYVE Hybanthus verticillatus (Ortega) Baill. babyslippers    
CAVE11 Calceolaria verticillata (Ortega) Kuntze   0/1
HYFO6 Hydnophytum formicarium Jack. ant plant 1/0
HYAR Hydrangea arborescens L. wild hydrangea 3/1
HYCI3 Hydrangea cinerea Small ashy hydrangea 0/1
HYPA Hydrangea paniculata Siebold panicled hydrangea 1/0
HYQU3 Hydrangea quercifolia Bartr. oakleaf hydrangea 11/0
HYRA6 Hydrangea radiata Walt. silverleaf hydrangea    
HYARR Hydrangea arborescens L. ssp. radiata (Walt.) McClintock   5/0
HYCA Hydrastis canadensis L. goldenseal 8/1
HYVE3 Hydrilla verticillata (L. f.) Royle waterthyme 1/0
HYNY Hydrocleys nymphoides (Humb. & Bonpl. ex Willd.) Buch. waterpoppy 2/0
HYAM Hydrocotyle americana L. American marshpennywort 0/1
HYBO Hydrocotyle bonariensis Comm. ex Lam. largeleaf pennywort 3/1
HYPR10 Hydrocotyle prolifera Kellogg whorled marshpennywort    
HYCA13 Hydrocotyle canbyi Coult. & Rose   0/1
HYRA Hydrocotyle ranunculoides L. f. floating marshpennywort 2/2
HYSI Hydrocotyle sibthorpioides Lam. lawn marshpennywort    
HYRO4 Hydrocotyle rotundifolia Lam.   0/1
HYUM Hydrocotyle umbellata L. manyflower marshpennywort 4/2
HYVE2 Hydrocotyle verticillata Thunb. whorled marshpennywort 0/1
HYVEV Hydrocotyle verticillata Thunb. var. verticillata whorled marshpennywort 1/0
HYCO7 Hydrolea corymbosa J. Macbr. ex Ell. skyflower 4/0
HYOV Hydrolea ovata Nutt. ex Choisy ovate false fiddleleaf 6/1
NAOV Nama ovata (Nutt. ex Choisy) Britt.   0/1
HYQU Hydrolea quadrivalvis Walt. waterpod    
NAQU Nama quadrivalvis (Walt.) Kuntze   0/1
HYUN Hydrolea uniflora Raf. oneflower false fiddleleaf 1/0
NAAF Nama affinis (Gray) Kuntze   0/1
HYDRO4 Hydrophyllum L. waterleaf 1/0
HYAP Hydrophyllum appendiculatum Michx. great waterleaf 4/1
HYCA3 Hydrophyllum canadense L. bluntleaf waterleaf 2/1
HYCA4 Hydrophyllum capitatum Dougl. ex Benth. ballhead waterleaf 4/0
HYCAC Hydrophyllum capitatum Dougl. ex Benth. var. capitatum ballhead waterleaf 1/0
HYFE Hydrophyllum fendleri (Gray) Heller Fendler's waterleaf 4/0
HYMA Hydrophyllum macrophyllum Nutt. largeleaf waterleaf 1/1
HYOC Hydrophyllum occidentale (S. Wats.) Gray western waterleaf 3/1
HYTE Hydrophyllum tenuipes A. Heller Pacific waterleaf 2/0
HYVI Hydrophyllum virginianum L. eastern waterleaf 7/2
HYFL5 Hygroamblystegium fluviatile (Hedw.) Loeske streamside hygroamblystegium moss    
AMFL5 Amblystegium fluviatile (Hedw.) Schimp. in B.S.G.   5/0
HYAL4 Hygrohypnum alpinum (Lindb.) Loeske alpine hygrohypnum moss 4/0
HYDU2 Hygrohypnum duriusculum (De Not.) Jamieson hygrohypnum moss 2/0
HYLU5 Hygrohypnum luridum (Hedw.) Jenn. hygrohypnum moss 5/0
HYMI8 Hygrohypnum micans (Mitt.) Broth. hygrohypnum moss    
SEMI5 Sematophyllum micans (Mitt.) Braithw.   3/0
HYOC5 Hygrohypnum ochraceum (Turn. ex Wils.) Loeske hygrohypnum moss 5/0
HYTR2 Hylocereus trigonus (Haw.) Safford strawberry-pear 7/0
HYUN3 Hylocereus undatus (Haw.) Britt. & Rose nightblooming cactus 3/0
HYPY70 Hylocomiastrum pyrenaicum (Spruce) Fleisch. in Broth. hylocomiastrum moss    
HYPY71 Hylocomium pyrenaicum (Spruce) Lindb.   4/0
HYUM2 Hylocomiastrum umbratum (Hedw.) Fleisch. in Broth. hylocomiastrum moss    
HYUM3 Hylocomium umbratum (Hedw.) Schimp. in B.S.G.   1/0
HYSP70 Hylocomium splendens (Hedw.) Schimp. in B.S.G. splendid feather moss 7/0
HYTE9 Hylotelephium telephioides (Michx.) H. Ohba. Allegheny stonecrop 1/0
SETE Sedum telephioides Michx.   1/1
HYTET2 Hylotelephium telephium (L.) H. Ohba. ssp. telephium witch's moneybags 2/0
SETR5 Sedum triphyllum (Haw.) S.F. Gray   0/1
HYCO Hymenaea courbaril L. stinkingtoe 3/0
HYMEN2 Hymenocallis Salisb. spiderlily 4/0
HYCA19 Hymenocallis caribaea (L.) Herbert Caribbean spiderlily 2/0
HYCA9 Hymenocallis caroliniana (L.) Herbert Carolina spiderlily 0/1
HYOC2 Hymenocallis occidentalis (Le Conte) Kunth   4/1
HYFL3 Hymenocallis floridana (Raf.) Morton Florida spiderlily    
HYCR Hymenocallis crassifolia Herbert   2/0
HYLI Hymenocallis liriosme (Raf.) Shinners spring spiderlily 7/0
HYLI8 Hymenocallis littoralis (Jacq.) Salisb. beach spiderlily 1/0
HYPA4 Hymenocallis palmeri S. Wats. alligatorlily 2/0
HYSP10 Hymenocallis speciosa (L. f.) Salisb. green-tinge spiderlily 2/0
HYMO Hymenoclea monogyra Torr. & Gray ex Gray singlewhorl burrobrush 1/0
HYSA Hymenoclea salsola Torr. & Gray ex Gray burrobrush 2/0
HYAR3 Hymenopappus artemisiifolius DC. oldplainsman 2/0
HYARA Hymenopappus artemisiifolius DC. var. artemisiifolius oldplainsman 1/0
HYBI Hymenopappus biennis B.L. Turner biennial woollywhite 1/0
HYFI Hymenopappus filifolius Hook. fineleaf hymenopappus 1/1
HYFIE Hymenopappus filifolius Hook. var. eriopodus (A. Nels.) B.L. Turner fineleaf hymenopappus 1/0
HYFIL Hymenopappus filifolius Hook. var. lugens (Greene) Jepson Idaho hymenopappus 1/0
HYFL Hymenopappus flavescens Gray collegeflower 0/1
HYNE Hymenopappus newberryi (Gray) I.M. Johnston Newberry's hymenopappus 6/0
HYSC Hymenopappus scabiosaeus L'Hér. Carolina woollywhite 1/0
HYSCC Hymenopappus scabiosaeus L'Hér. var. corymbosus (Torr. & Gray) B.L. Turner Carolina woollywhite    
HYCO10 Hymenopappus corymbosus Torr. & Gray   0/1
HYSCS Hymenopappus scabiosaeus L'Hér. var. scabiosaeus Carolina woollywhite    
HYCA14 Hymenopappus carolinensis (Lam.) Porter   0/1
HYTE2 Hymenopappus tenuifolius Pursh Chalk Hill hymenopappus 0/1
HYMEN7 Hymenoxys Cass. rubberweed 1/0
HYCO2 Hymenoxys cooperi (Gray) Cockerell Cooper's rubberweed 1/0
HYCOC Hymenoxys cooperi (Gray) Cockerell var. canescens (D.C. Eat.) Parker Cooper's rubberweed 2/0
HYHO Hymenoxys hoopesii (Gray) Bierner owl's-claws 7/0
DUHO Dugaldia hoopesii (Gray) Rydb.   1/0
HEHO5 Helenium hoopesii Gray   3/0
HYOD Hymenoxys odorata DC. bitter rubberweed 3/1
HYRI Hymenoxys richardsonii (Hook.) Cockerell pingue rubberweed 2/0
HYRIF Hymenoxys richardsonii (Hook.) Cockerell var. floribunda (Gray) Parker Colorado rubberweed 2/0
HYRU Hymenoxys rusbyi (Gray) Cockerell Rusby's rubberweed 2/0
HYSU Hymenoxys subintegra Cockerell Arizona rubberweed 1/0
HYTE5 Hymenoxys texana (Coult. & Rose) Cockerell prairiedawn 1/0
HYOSC Hyoscyamus L. henbane 1/0
HYNI Hyoscyamus niger L. black henbane 1/1
HYDR4 Hyparrhenia dregeana (Nees) Stent silky thatching grass 1/0
HYHI Hyparrhenia hirta (L.) Stapf thatching grass 2/0
HYRU2 Hyparrhenia rufa (Nees) Stapf jaraguagrass 1/1
HYDO2 Hyperbaena domingensis (DC.) Benth. forest snakevine 1/0
HYLA8 Hyperbaena laurifolia (Poir.) Urban limestone snakevine 1/0
HYPER Hypericum L. St. Johnswort 1/0
HYAD Hypericum adpressum Raf. ex W. Bart. creeping St. Johnswort 0/1
HYAN2 Hypericum anagalloides Cham. & Schlecht. tinker's penny 5/1
HYAS80 Hypericum ascyron L. great St. Johnswort 0/2
HYPY Hypericum pyramidatum Ait.   1/0
HYBO2 Hypericum boreale (Britt.) Bickn. northern St. Johnswort 0/1
HYBU Hypericum buckleii M.A. Curtis Buckley's St. Johnswort 1/0
HYCA10 Hypericum calycinum L. Aaron's beard 3/0
HYCA7 Hypericum canadense L. lesser Canadian St. Johnswort 1/2
HYCA11 Hypericum canariense L. Canary Island St. Johnswort 1/0
HYCI Hypericum cistifolium Lam. roundpod St. Johnswort 3/2
HYCR3 Hypericum crux-andreae (L.) Crantz St. Peterswort 1/1
ASST2 Ascyrum stans Michx. ex Willd.   2/1
HYST3 Hypericum stans (Michx. ex Willd.) P. Adams & Robson   1/0
HYDE Hypericum densiflorum Pursh bushy St. Johnswort 4/1
HYDE2 Hypericum denticulatum Walt. coppery St. Johnswort 1/1
HYDO Hypericum dolabriforme Vent. straggling St. Johnswort 1/1
HYDR Hypericum drummondii (Grev. & Hook.) Torr. & Gray nits and lice 1/1
HYEL Hypericum ellipticum Hook. pale St. Johnswort 0/1
HYFA Hypericum fasciculatum Lam. peelbark St. Johnswort 2/1
HYFR Hypericum frondosum Michx. cedarglade St. Johnswort 2/0
HYAU Hypericum aureum Bartr.   0/1
HYGA Hypericum galioides Lam. bedstraw St. Johnswort 0/2
HYGE Hypericum gentianoides (L.) B.S.P. orangegrass 7/1
SAGE6 Sarothra gentianoides L.   0/1
HYGR3 Hypericum graveolens Buckl. mountain St. Johnswort 1/1
HYGY Hypericum gymnanthum Engelm. & Gray claspingleaf St. Johnswort 0/1
HYHY Hypericum hypericoides (L.) Crantz St. Andrew's cross 3/1
HYHYH Hypericum hypericoides (L.) Crantz ssp. hypericoides St. Andrew's cross 1/0
ASHY Ascyrum hypericoides L.   3/1
HYKA Hypericum kalmianum L. Kalm's St. Johnswort 0/1
HYMA2 Hypericum majus (Gray) Britt. large St. Johnswort 0/1
HYMU Hypericum mutilum L. dwarf St. Johnswort 3/2
HYNU Hypericum nudiflorum Michx. ex Willd. early St. Johnswort 2/0
HYPE Hypericum perforatum L. common St. Johnswort 4/1
HYPR Hypericum prolificum L. shrubby St. Johnswort 2/2
HYSP5 Hypericum spathulatum (Spach) Steud.   1/0
HYPS Hypericum pseudomaculatum Bush false spotted St. Johnswort 0/1
HYPU Hypericum punctatum Lam. spotted St. Johnswort 3/2
HYRE3 Hypericum reductum (Svens.) P. Adams Atlantic St. Johnswort 1/1
HYSC5 Hypericum scouleri Hook. Scouler's St. Johnswort 5/0
HYSCS2 Hypericum scouleri Hook. ssp. scouleri Scouler's St. Johnswort 2/0
HYSP2 Hypericum sphaerocarpum Michx. roundseed St. Johnswort 1/0
HYSU2 Hypericum suffruticosum P. Adams & Robson pineland St. Johnswort 1/0
HYTE4 Hypericum tetrapetalum Lam. fourpetal St. Johnswort 3/0
ASTE13 Ascyrum tetrapetalum (Lam.) Vail   1/0
HYVI6 Hypericum virgatum Lam. sharpleaf St. Johnswort 0/1
HYPHA Hyphaene Gaertner hyphaene 2/0
HYBE4 Hyphaene benguelensis Welw. ex H.Wendl. 9/0
HYCO19 Hyphaene coriacea Gaertn. doum palm 3/0
HYBA70 Hypnum bambergeri Schimp. Bamberger's hypnum moss 2/0
HYCA70 Hypnum callichroum Funck ex Brid. hypnum moss 2/0
HYCU4 Hypnum cupressiforme Hedw. hypnum moss 9/0
HYIM3 Hypnum imponens Hedw. hypnum moss 2/0
HYJU2 Hypnum jutlandicum Holm. & Warncke hypnum moss 2/0
HYLI70 Hypnum lindbergii Mitt. Lindberg's hypnum moss 2/0
HYMA5 Hypnum mammillatum (Brid.) Loeske hypnum moss 2/0
HYPA11 Hypnum pallescens (Hedw.) P. Beauv. hypnum moss 5/0
HYRE70 Hypnum revolutum (Mitt.) Lindb. revolute hypnum moss 5/0
HYVA70 Hypnum vaucheri Lesq. Vaucher's hypnum moss 6/0
HYPOC Hypochaeris L. catsear    
HYPOC4 Hypochoeris L.   1/0
HYBR5 Hypochaeris brasiliensis (Less.) Benth. & Hook. ex Griseb. Brazilian catsear 1/0
HYRA3 Hypochaeris radicata L. hairy catsear 3/1
HYVI3 Hypogynium virgatum (Desv. ex Ham.) Dandy West Indian bluestem 2/0
ANVI10 Andropogon virgatus Desv. ex Ham.   2/0
HYHI2 Hypoxis hirsuta (L.) Coville common goldstar 10/2
HYJU Hypoxis juncea Sm. fringed yellow star-grass 2/0
HYME2 Hypoxis mexicana J.A. & J.H. Schultes Mexican yellow star-grass 1/0
HYAL Hyptis alata (Raf.) Shinners clustered bushmint 1/0
HYMU2 Hyptis mutabilis (A. Rich.) Briq. tropical bushmint 1/0
HYSU3 Hyptis suaveolens (L.) Poit. pignut 1/0
HYOF Hyssopus officinalis L. hyssop 2/1
IBGI Iberis gibraltarica L. Gibraltar candytuft 1/0
IBSE Iberis sempervirens L. evergreen candytuft 1/0
IBUM Iberis umbellata L. globe candytuft 1/0
IBLI Ibervillea lindheimeri (Gray) Greene Lindheimer's globeberry 1/0
ILEX Ilex L. holly 5/0
ILAM Ilex ambigua (Michx.) Torr. Carolina holly 1/0
ILAM2 Ilex amelanchier M.A. Curtis ex Chapman sarvis holly 0/1
ILAQ80 Ilex aquifolium L. English holly 3/0
ILCA Ilex cassine L. dahoon 4/2
ILCO Ilex coriacea (Pursh) Chapman large gallberry 5/2
ILCO80 Ilex cornuta Lindl. & Paxton Chinese holly 1/0
ILCR2 Ilex crenata Thunb. Japanese holly 1/0
ILDE Ilex decidua Walt. possumhaw 5/2
ILGL Ilex glabra (L.) Gray inkberry 9/2
ILLA Ilex laevigata (Pursh) Gray smooth winterberry 0/1
ILLO Ilex longipes Chapm. ex Trel. Georgia holly 1/0
ILMO Ilex montana Torr. & Gray ex Gray mountain holly 1/2
ILMU Ilex mucronata (L.) Powell, Savolainen & Andrews catberry    
NEMU2 Nemopanthus mucronatus (L.) Loes.   0/2
ILOP Ilex opaca Ait. American holly 22/2
ILOPA Ilex opaca Ait. var. arenicola (Ashe) Ashe American holly    
ILCU Ilex cumulicola Small   1/0
ILOPO Ilex opaca Ait. var. opaca American holly 1/0
ILPA3 Ilex paraguariensis St.-Hil. mate 1/0
ILVE Ilex verticillata (L.) Gray common winterberry 4/2
ILBR Ilex bronxensis Britt.   0/1
ILVO Ilex vomitoria Ait. yaupon 10/1
ILGR Iliamna grandiflora (Rydb.) Wiggins largeflower wild hollyhock 5/0
ILRI Iliamna rivularis (Dougl. ex Hook.) Greene streambank wild hollyhock 2/1
ILRIR Iliamna rivularis (Dougl. ex Hook.) Greene var. rivularis streambank wild hollyhock    
ILCO4 Iliamna corei Sherff   3/0
ILRE Iliamna remota Greene   3/0
PHRE3 Phymosia remota (Greene) Britt.   0/1
SPRI4 Sphaeralcea rivularis (Dougl. ex Hook.) Torr.   1/0
ILFL Illicium floridanum Ellis Florida anisetree 5/0
ILPA Illicium parviflorum Michx. ex Vent. yellow anisetree 2/0
IMPAT Impatiens L. touch-me-not 7/0
IMBA2 Impatiens balfourii Hook. f. Balfour's touch-me-not 1/0
IMBA Impatiens balsamina L. spotted snapweed 2/0
IMCA Impatiens capensis Meerb. jewelweed 7/1
IMBI2 Impatiens biflora Walt.   0/1
IMGL Impatiens glandulifera Royle ornamental jewelweed 8/0
IMPA Impatiens pallida Nutt. pale touch-me-not 7/2
IMBR Imperata brasiliensis Trin. Brazilian satintail 0/1
IMBR2 Imperata brevifolia Vasey California satintail 0/1
IMCY Imperata cylindrica (L.) Beauv. cogongrass 8/0
INDE2 Incarvillea delavayi Bureau & Franch. 4/0
INHE3 Indigofera hendecaphylla Jacq. trailing indigo    
INSP2 Indigofera spicata auct. p.p., non Forssk.   1/0
INHI Indigofera hirsuta L. roughhairy indigo 1/0
INMI Indigofera miniata Ortega coastal indigo 1/0
INLE Indigofera leptosepala Nutt. ex Torr. & Gray   0/1
INMIL Indigofera miniata Ortega var. leptosepala (Nutt. ex Torr. & Gray) B.L. Turner   1/0
INPI Indigofera pilosa Poir. softhairy indigo 1/0
INSP Indigofera sphaerocarpa A. Gray Sonoran indigo 1/0
INLA Inga laurina (Sw.) Willd. sacky sac bean 2/0
INHE Inula helenium L. elecampane inula 1/1
INHO3 Inula hookeri C.B. Clarke Hooker's inula 2/0
IOCY Iochroma cyaneum (Lindl.) M.L. Green violet churur 6/0
IOFU Iochroma fuchsioides (Bonpl.) Miers 2/0
IOPI Iodanthus pinnatifidus (Michx.) Steud. purplerocket 2/2
IOAL Ionactis alpina (Nutt.) Greene Lava aster    
ASSC3 Aster scopulorum Gray   1/0
IOCA2 Ionactis caelestis Leary & Nesom Spring Mountain aster 1/0
IOLI2 Ionactis linariifolius (L.) Greene flaxleaf whitetop aster 0/1
ASLI2 Aster linariifolius L.   1/0
IPOMO Ipomoea L. morning-glory 3/0
IPAL Ipomoea alba L. tropical white morning-glory 4/0
IPBO Ipomoea bona-nox L.   1/0
IPAQ Ipomoea aquatica Forssk. swamp morning-glory 3/0
IPBA2 Ipomoea batatas (L.) Lam. sweetpotato 5/0
IPCA Ipomoea cairica (L.) Sweet mile a minute vine 1/0
IPCA5 Ipomoea carnea Jacq. gloria de la manana 1/0
IPCAF Ipomoea carnea Jacq. ssp. fistulosa (Mart. ex Choisy) D. Austin gloria de la manana 8/0
IPCO3 Ipomoea coccinea L. redstar 7/0
QUCO9 Quamoclit coccinea (L.) Moench   1/1
IPCO4 Ipomoea coptica (L.) Roth ex Roemer & J.A. Schultes alamovine 1/0
IPCO8 Ipomoea cordatotriloba Dennst. tievine 1/0
IPCOC2 Ipomoea cordatotriloba Dennst. var. cordatotriloba tievine 1/0
IPTR Ipomoea trichocarpa Ell.   0/1
IPEG3 Ipomoea eggersii (House) D. Austin Egger's morning-glory 3/0
IPHE Ipomoea hederacea Jacq. ivyleaf morning-glory 5/1
IPHEI2 Ipomoea hederacea Jacq. var. integriuscula Gray   1/0
IPHE2 Ipomoea hederifolia L. scarletcreeper 3/0
IPHO Ipomoea horsfalliae Hook. f. Lady Doorly's morning-glory 2/0
IPIM Ipomoea imperati (Vahl) Griseb. beach morning-glory 5/0
IPST Ipomoea stolonifera J.F. Gmel.   1/0
IPIN Ipomoea indica (Burm. f.) Merr. oceanblue morning-glory 6/0
IPCO6 Ipomoea congesta R. Br.   3/0
IPJA Ipomoea jaegeri Pilg. morning glory 1/0
IPLA Ipomoea lacunosa L. whitestar 4/2
IPLE Ipomoea leptophylla Torr. bush morning-glory 5/1
IPLI Ipomoea lindheimeri Gray Lindheimer's morning-glory 1/0
IPLO Ipomoea longifolia Benth. pinkthroat morning-glory 1/0
IPMA5 Ipomoea mauritiana Jacq. 1/0
IPMI Ipomoea microdactyla Griseb. calcareous morning-glory 2/0
IPNI Ipomoea nil (L.) Roth whiteedge morning-glory 4/0
IPOB Ipomoea obscura (L.) Ker-Gawl. obscure morning-glory 1/0
IPOC2 Ipomoea ochracea (Lindl.) G. Don fence morning-glory 3/0
IPPA Ipomoea pandurata (L.) G.F.W. Mey. man of the earth 7/1
IPPA3 Ipomoea pauciflora Martens & Galeotti tree morning glory 1/0
IPPE Ipomoea pes-caprae (L.) R. Br. bayhops 9/0
IPPE2 Ipomoea pes-tigridis L. morningglory 1/0
IPPU2 Ipomoea purpurea (L.) Roth tall morning-glory 4/2
IPQU Ipomoea quamoclit L. cypressvine 4/0
QUQU Quamoclit quamoclit (L.) Britt.   0/1
IPRE Ipomoea repanda Jacq. bejuco colorado 2/0
IPSA Ipomoea sagittata Poir. saltmarsh morning-glory 2/0
IPSE2 Ipomoea setifera Poir. bejuco de puerco 5/0
IPSE3 Ipomoea setosa Ker-Gawl. Brazilian morning-glory 1/0
IPST2 Ipomoea steudelii Millsp. Steudel's morning-glory 2/0
IPTR3 Ipomoea tricolor Cav. grannyvine 3/0
IPTR2 Ipomoea triloba L. littlebell 4/0
IPTU3 Ipomoea turbinata Lag. lilacbell    
IPMU5 Ipomoea muricata (L.) Jacq.   1/0
IPVI Ipomoea violacea L. beach moonflower 3/0
IPWR Ipomoea wrightii Gray Wright's morning-glory 1/0
IPAG Ipomopsis aggregata (Pursh) V. Grant scarlet gilia 16/0
IPAGA3 Ipomopsis aggregata (Pursh) V. Grant ssp. aggregata scarlet gilia 12/0
GIAG Gilia aggregata (Pursh) Spreng.   1/1
IPAGF Ipomopsis aggregata (Pursh) V. Grant ssp. formosissima (Greene) Wherry scarlet gilia 6/0
IPAR2 Ipomopsis arizonica (Greene) Wherry Arizona ipomopsis 4/0
IPCO5 Ipomopsis congesta (Hook.) V. Grant ballhead ipomopsis 6/0
IPCOC3 Ipomopsis congesta (Hook.) V. Grant ssp. congesta ballhead ipomopsis 3/0
IPCOM Ipomopsis congesta (Hook.) V. Grant ssp. montana (A. Nels. & Kennedy) V. Grant ballhead ipomopsis 2/0
IPLO2 Ipomopsis longiflora (Torr.) V. Grant flaxflowered ipomopsis 8/0
IPLOL Ipomopsis longiflora (Torr.) V. Grant ssp. longiflora flaxflowered ipomopsis    
GILO2 Gilia longiflora (Torr.) G. Don   0/1
IPMA2 Ipomopsis macombii (Torr. ex Gray) V. Grant Macomb's ipomopsis 3/0
IPMU3 Ipomopsis multiflora (Nutt.) V. Grant manyflowered ipomopsis 3/0
IPPO Ipomopsis polyantha (Rydb.) V.E. Grant Pagosa ipomopsis 6/0
IPPO2 Ipomopsis polycladon (Torr.) V. Grant manybranched ipomopsis 5/0
IPPU4 Ipomopsis pumila (Nutt.) V. Grant dwarf ipomopsis 5/0
GIPU3 Gilia pumila Nutt.   0/1
IPRO Ipomopsis roseata (Rydb.) V. Grant rosy ipomopsis 3/0
IPSA2 Ipomopsis sancti-spiritus Wilken & Fletcher Holy Ghost ipomopsis 2/0
IPSPS Ipomopsis spicata (Nutt.) V. Grant ssp. spicata spiked ipomopsis    
GISP4 Gilia spicata Nutt.   0/1
IPTE4 Ipomopsis tenuituba (Rydb.) V.E. Grant slendertube skyrocket 1/0
IRDI Iresine diffusa Humb. & Bonpl. ex Willd. Juba's bush    
IRPA9 Iresine paniculata (L.) Kuntze, non Poir.   0/1
IRIS Iris L. iris 3/0
IRAP Iris aphylla L. stool iris 1/0
IRBR2 Iris brevicaulis Raf. zigzag iris 1/0
IRFO2 Iris foliosa Mackenzie & Bush   0/1
IRCH Iris chrysophylla T.J. Howell yellowleaf iris 4/0
IRCR Iris cristata Ait. dwarf crested iris 5/1
IRDO Iris douglasiana Herbert Douglas iris 8/0
IREN Iris ensata Thunb. Japanese iris 2/0
IRFL2 Iris flavescens Delile lemonyellow iris 1/0
IRFO Iris foetidissima L. stinking iris 1/0
IRFU Iris fulva Ker-Gawl. copper iris 4/1
IRGE Iris germanica L. German iris 2/1
IRGEF Iris germanica L. var. florentina (L.) Dykes orris-root    
IRFL4 Iris florentina L.   1/0
IRGI Iris giganticaerulea Small giant blue iris 2/0
IRHA Iris hartwegii Baker rainbow iris 3/0
IRHE2 Iris hexagona Walt. Dixie iris 4/1
IRHEH Iris hexagona Walt. var. hexagona Dixie iris    
IRGE3 Iris georgiana Britt.   0/1
IRIN Iris innominata Henderson Del Norte County iris 10/0
IRLA Iris lacustris Nutt. dwarf lake iris 6/1
IRLA4 Iris laevigata Fisch. rabbitear iris 1/0
IRLU Iris lutescens Lam. Crimean iris 1/0
IRMA Iris macrosiphon Torr. bowltube iris 6/0
IRAM2 Iris amabilis Eastw.   1/0
IRMI Iris missouriensis Nutt. Rocky Mountain iris 16/1
IRLO Iris longipetala Herbert   1/0
IROR Iris orientalis P. Mill. yellowband iris 1/0
IRPA2 Iris pallida Lam. sweet iris 1/0
IRPR Iris prismatica Pursh ex Ker-Gawl. slender blue iris 5/2
IRPS Iris pseudacorus L. paleyellow iris 11/2
IRPU2 Iris pumila L. dwarf iris 1/0
IRPU Iris purdyi Eastw. Purdy's iris 2/0
IRRE3 Iris reticulata M. Bieb. 2/0
IRSE Iris setosa Pallas ex Link beachhead iris 2/0
IRSEC Iris setosa Pallas ex Link var. canadensis M. Foster ex B.L. Robins. & Fern. Canada beachhead iris    
IRHO2 Iris hookeri Penny ex G. Don   0/1
IRSI Iris sibirica L. Siberian iris 1/0
IRSP80 Iris spuria L. seashore iris 1/0
IRTE4 Iris tectorum Maxim. wall iris 4/0
IRTE Iris tenax Dougl. ex Lindl. toughleaf iris 3/0
IRTE3 Iris tenuissima Dykes longtube iris 1/0
IRTI Iris tingitana Boiss. & Reut. Morocco iris 1/0
IRTR Iris tridentata Pursh savannah iris 2/0
IRVE Iris verna L. dwarf violet iris 3/1
IRVES Iris verna L. var. smalliana Fern. ex M.E. Edwards dwarf violet iris 1/0
IRVE2 Iris versicolor L. harlequin blueflag 9/2
IRVI Iris virginica L. Virginia iris 4/1
IRXI Iris xiphium L. Spanish iris 1/0
ISTI Isatis tinctoria L. Dyer's woad 2/0
ISBY Ischaemum byrone (Trin.) A.S. Hitchc. Hilo murainagrass 1/0
ISIN3 Ischaemum indicum (Houtt.) Merr. Indian murainagrass    
ISCI Ischaemum ciliare Retz.   2/0
ISRU Ischaemum rugosum Salisb. ribbed murainagrass 1/0
ISOCO Isocoma Nutt. goldenbush 1/0
ISACE2 Isocoma acradenia (Greene) Greene var. eremophila (Greene) Nesom alkali goldenbush 2/0
ISPL Isocoma pluriflora (Torr. & Gray) Greene southern goldenbush 3/0
HAHE2 Haplopappus heterophyllus (Gray) Blake   1/0
ISRU2 Isocoma rusbyi Greene Rusby's goldenbush 4/0
ISBU Isoetes butleri Engelm. limestone quillwort 0/1
ISDO Isoetes ×dodgei A.A. Eat. (pro sp.) [riparia × tenella] 0/1
ISEA Isoetes ×eatonii Dodge (pro sp.) [engelmannii × tenella] 0/1
ISEAG Isoetes eatonii Dodge var. gravesii (A.A. Eat.) Clute (pro syn.)   0/1
ISGR Isoetes gravesii A.A. Eat.   0/1
ISEN Isoetes engelmannii A. Braun Appalachian quillwort 1/1
ISFO Isoetes ×foveolata A.A. Eat. ex Dodge (pro sp.) [engelmannii × tuckermannii] 0/1
ISLA Isoetes lacustris L. lake quillwort 1/1
ISHI3 Isoetes hieroglyphica A.A. Eat.   0/1
ISMA Isoetes macrospora Durieu big-spore quillwort 0/1
ISME Isoetes melanopoda Gay & Durieu ex Durieu blackfoot quillwort 2/1
ISNU Isoetes nuttallii A. Braun ex Engelm. Nuttall's quillwort 2/0
ISOR Isoetes orcuttii A.A. Eat. Orcutt's quillwort 1/0
ISRI Isoetes riparia Engelm. ex A. Braun shore quillwort 0/1
ISSA Isoetes saccharata Engelm. sugar quillwort 0/1
ISTE5 Isoetes tenella Léman spiny-spore quillwort 0/1
ISBR4 Isoetes braunii Durieu   0/1
ISEC Isoetes echinospora Durieu   1/0
ISTU Isoetes tuckermanii A. Braun Tuckerman's quillwort 0/1
ISFO3 Isopogon formosus R. Br. 1/0
ISAL2 Isothecium alopecuroides (Dubois) Isov. isothecium moss 2/0
ISMY2 Isothecium myosuroides Brid. isothecium moss 3/0
ISME2 Isotria medeoloides (Pursh) Raf. small whorled pogonia 2/2
ISVE Isotria verticillata Raf. large whorled pogonia 11/1
ITVI Itea virginica L. Virginia sweetspire 8/2
IVAN Iva angustifolia Nutt. ex DC. narrowleaf marshelder 2/0
IVAN2 Iva annua L. annual marshelder 7/1
IVANA Iva annua L. var. annua annual marshelder    
IVCI2 Iva ciliata Willd.   0/1
IVAX Iva axillaris Pursh povertyweed 1/2
IVFR Iva frutescens L. Jesuit's bark 3/2
IVIM Iva imbricata Walt. seacoast marshelder 2/1
IVAPA Ivesia aperta (J.T. Howell) Munz var. aperta Sierra Valley mousetail 4/0
IVAPC Ivesia aperta (J.T. Howell) Munz var. canina Ertter Sierra Valley mousetail 2/0
IVAR Ivesia argyrocoma (Rydb.) Rydb. silverhair mousetail 1/0
IVBA Ivesia baileyi S. Watson Bailey's ivesia 3/0
IVGO Ivesia gordonii (Hook.) Torr. & Gray Gordon's ivesia 5/0
IVJA Ivesia jaegeri Munz & Johnston Jaeger's mousetail 1/0
IVKI Ivesia kingii S. Wats. King's mousetail 5/0
IVLY Ivesia lycopodioides Gray clubmoss mousetail 2/0
IVLYM Ivesia lycopodioides Gray ssp. megalopetala (Rydb.) Keck clubmoss mousetail 3/0
IVLYS Ivesia lycopodioides Gray ssp. scandularis (Rydb.) Keck clubmoss mousetail 2/0
IVMU Ivesia muirii Gray granite mousetail 2/0
IVRH Ivesia rhypara Ertter & Reveal grimy mousetail 1/0
IVSA2 Ivesia santolinoides Gray Sierra mousetail 1/0
IVSA3 Ivesia saxosa (J.G. & S.A. Lemmon ex Greene) Ertter rock mousetail 2/0
IVSE Ivesia sericoleuca (Rydb.) Rydb. Plumas mousetail 6/0
IVWE Ivesia webberi Gray wire mousetail 1/0
IXIA Ixia L. African cornlily 1/0
IXMA Ixia maculata L. spotted African cornlily 1/0
IXUN Ixophorus unisetus (J. Presl) Schltdl. Mexican grass 1/0
IXCO Ixora coccinea L. scarlet jungleflame 2/0
IXMA2 Ixora macrothyrsa Teijsm. & Binn. 6/0
JACAR Jacaranda Juss. jacaranda 3/0
JAMI Jacaranda mimosifolia D. Don black poui 3/0
JACQU Jacquemontia Choisy clustervine 2/0
JACA7 Jacquemontia cayensis Britt. sandyplain clustervine 1/0
JACU3 Jacquemontia cumanensis (Kunth) Kuntze thicket clustervine 1/0
JAHA Jacquemontia havanensis (Jacq.) Urban Havana clustervine 3/0
JAOV2 Jacquemontia ovalifolia (Vahl ex West) Hallier f. oval-leaf clustervine 1/0
JAPE Jacquemontia pentanthos (Jacq.) G. Don skyblue clustervine 2/0
JARE Jacquemontia reclinata House beach clustervine 2/0
JASO Jacquemontia solanifolia (L.) Hallier cambustera de costa 1/0
JATA Jacquemontia tamnifolia (L.) Griseb. hairy clustervine 8/1
JAAM Jamesia americana Torr. & Gray fivepetal cliffbush 7/0
JAAU Jamesoniella autumnalis (DC.) Steph. 3/0
JAGR Janusia gracilis Gray slender janusia 3/0
JAMO Jasione montana L. sheepbit 0/1
JASMI Jasminum L. jasmine 1/0
JADI2 Jasminum dichotomum Vahl Gold Coast jasmine 1/0
JAFL Jasminum fluminense Vell. jazmin de trapo 3/0
JAME Jasminum mesnyi Hance Japanese jasmine 1/0
JAMU2 Jasminum multiflorum (Burm. f.) Andr. star jasmine 1/0
JANI Jasminum nitidum Skan angelwing jasmine 1/0
JANU Jasminum nudiflorum Lindl. winter jasmine 1/0
JAOF Jasminum officinale L. poet's jasmine 3/0
JASA Jasminum sambac (L.) Aiton Arabian jasmine 1/0
JATRO Jatropha L. nettlespurge 3/0
JACU2 Jatropha curcas L. Barbados nut 1/0
JADI Jatropha dioica Cerv. leatherstem 2/0
JADIG Jatropha dioica Cerv. var. graminea McVaugh leatherstem 3/0
JAGO Jatropha gossypiifolia L. bellyache bush 2/0
JAIN Jatropha integerrima Jacq. peregrina 2/0
JAPO Jatropha podagrica Hook. goutystalk nettlespurge 3/0
JACA4 Jaumea carnosa (Less.) Gray marsh jaumea 1/0
JEDI Jeffersonia diphylla (L.) Pers. twinleaf 7/1
JOPU Johanneshowellia puberula (S.Watson) Reveal Red Creek buckwheat    
ERPU5 Eriogonum puberulum S. Wats.   3/0
JOAS Joinvillea ascendens Gaud. ex Brongn. & Gris 'ohe 2/0
JUCH3 Jubaea chilensis (Molina) Baillon Chile cocopalm 1/0
JUGLA Juglans L. walnut 3/0
JUCI Juglans cinerea L. butternut 4/3
JUHI Juglans hindsii (Jepson) Jepson ex R.E. Sm. Northern California walnut 1/0
JUJA Juglans jamaicensis C. DC. West Indian walnut 1/0
JUMA Juglans major (Torr.) Heller Arizona walnut 6/0
JUMI Juglans microcarpa Berl. little walnut 2/0
JUNI Juglans nigra L. black walnut 14/2
JURE80 Juglans regia L. English walnut 3/0
JUNCU Juncus L. rush 1/0
JUAC Juncus acuminatus Michx. tapertip rush 4/2
JUAC2 Juncus acutus L. spiny rush 1/0
JUALN Juncus alpinoarticulatus Chaix ssp. nodulosus (Wahlenb.) Hämet-Ahti northern green rush    
JUAL Juncus alpinus auct. non Vill. [misapplied]   3/1
JUAM3 Juncus ambiguus Guss. seasice rush    
JURA Juncus ranarius Perrier & Song.   1/0
JUARL Juncus arcticus Willd. ssp. littoralis (Engelm.) Hultén Baltic rush    
JUBA Juncus balticus Willd.   4/2
JUBAV Juncus balticus Willd. var. vallicola Rydb.   4/0
JUAR4 Juncus articulatus L. jointleaf rush 4/1
JUBI Juncus biflorus Ell. bog rush 2/1
JUAR7 Juncus aristulatus auct. non Michx. [misapplied]   0/1
JUBI2 Juncus biglumis L. twoflowered rush 1/1
JUBR Juncus brachycarpus Engelm. whiteroot rush 2/2
JUBR2 Juncus brachycephalus (Engelm.) Buch. smallhead rush 1/3
JUBR4 Juncus brevicaudatus (Engelm.) Fern. narrowpanicle rush 0/1
JUBU Juncus bufonius L. toad rush 5/2
JUBU2 Juncus bulbosus L. bulbous rush 0/1
JUCA2 Juncus caesariensis Coville New Jersey rush 0/1
JUCA3 Juncus canadensis J. Gay ex Laharpe Canadian rush 3/2
JUCA6 Juncus castaneus Sm. chestnut rush 1/1
JUCO2 Juncus confusus Coville Colorado rush 4/1
JUCO4 Juncus coriaceus Mackenzie leathery rush 1/0
JUSE3 Juncus setaceus Rostk.   0/1
JUCO5 Juncus covillei Piper Coville's rush 3/0
JUDE Juncus debilis Gray weak rush 0/1
JUDI Juncus dichotomus Ell. forked rush 0/3
JUPL2 Juncus platyphyllus (Wieg.) Fern.   1/0
JUDI2 Juncus diffusissimus Buckl. slimpod rush 0/1
JUDR Juncus drummondii E. Mey. Drummond's rush 4/0
JUDU2 Juncus dudleyi Wieg. Dudley's rush 0/1
JUEF Juncus effusus L. common rush 10/3
JUEFC2 Juncus effusus L. var. conglomeratus (L.) Engelm. common rush    
JUCO9 Juncus conglomeratus L.   0/1
JUEL Juncus elliottii Chapman Elliott's rush 0/1
JUEN Juncus ensifolius Wikstr. swordleaf rush 7/1
JUFI Juncus filiformis L. thread rush 3/1
JUGE Juncus gerardii Loisel. saltmeadow rush 3/1
JUGR Juncus greenei Oakes & Tuckerman Greene's rush 0/1
JUGY Juncus gymnocarpus Coville Pennsylvania rush 0/1
JUHA Juncus hallii Engelm. Hall's rush 3/0
JUHO Juncus howellii F.J. Herm. Howell's rush 3/0
JUIN2 Juncus interior Wieg. inland rush 1/2
JULO Juncus longistylis Torr. longstyle rush 4/1
JUMA4 Juncus marginatus Rostk. grassleaf rush 3/2
JUSE4 Juncus setosus (Coville) Small   0/1
JUMA5 Juncus maritimus Lam. sea rush 0/1
JUME Juncus megacephalus M.A. Curtis bighead rush 1/1
JUME3 Juncus mertensianus Bong. Mertens' rush 7/1
JUME4 Juncus mexicanus Willd. ex J.A. & J.H. Schultes Mexican rush 1/0
JUMI2 Juncus militaris Bigelow bayonet rush 1/1
JUNE Juncus nevadensis S. Wats. Sierra rush 4/0
JUNO Juncus nodatus Coville stout rush 0/1
JUNO2 Juncus nodosus L. knotted rush 3/3
JUOR2 Juncus ×oronensis Fern. (pro sp.) [tenuis × vaseyi] 0/1
JUOR Juncus orthophyllus Coville straightleaf rush 3/0
JUPA Juncus parryi Engelm. Parry's rush 4/0
JUPE Juncus pelocarpus E. Mey. brownfruit rush 0/1
JUPO Juncus polycephalus Michx. manyhead rush 2/1
JURE Juncus regelii Buch. Regel's rush 3/0
JURE2 Juncus repens Michx. lesser creeping rush 0/2
JURO Juncus roemerianus Scheele needlegrass rush 1/1
JUSA Juncus saximontanus A. Nels. Rocky Mountain rush 1/0
JUSC Juncus scirpoides Lam. needlepod rush 3/2
JUSE Juncus secundus Beauv. ex Poir. lopsided rush 1/2
JUST Juncus stygius L. moor rush 0/1
JUSU Juncus subcaudatus (Engelm.) Coville & Blake woodland rush 1/1
JUSU2 Juncus subtilis E. Mey. greater creeping rush 0/1
JUTE Juncus tenuis Willd. poverty rush 8/3
JUTO Juncus torreyi Coville Torrey's rush 6/2
JUTR2 Juncus trifidus L. highland rush 0/1
JUTR4 Juncus triglumis L. three-hulled rush 4/1
JUTW Juncus tweedyi Rydb. Tweedy's rush 3/0
JUVA2 Juncus validus Coville roundhead rush 1/1
JUVA Juncus vaseyi Engelm. Vasey's rush 0/1
JUAT2 Jungermannia atrovirens Dumort. 4/0
JUSP6 Jungermannia sphaerocarpa Hook. 3/0
JUNIP Juniperus L. juniper 9/1
JUCA7 Juniperus californica Carr. California juniper 4/0
JUCH4 Juniperus chinensis L. Chinese juniper 4/0
JUCO11 Juniperus coahuilensis (Martiñez) Gaussen ex R.P. Adams redberry juniper 1/0
JUCO6 Juniperus communis L. common juniper 3/1
JUCOS2 Juniperus communis L. var. saxatilis Pallas common juniper    
JUCOM2 Juniperus communis L. var. montana Ait.   2/0
JUSI3 Juniperus sibirica Burgsd.   1/1
JUCO12 Juniperus conferta Parl. shore juniper 1/0
JUDE2 Juniperus deppeana Steud. alligator juniper 9/0
JUFL Juniperus flaccida Schltdl. drooping juniper 2/0
JUHO2 Juniperus horizontalis Moench creeping juniper 1/1
JUMO Juniperus monosperma (Engelm.) Sarg. oneseed juniper 10/0
SAMO8 Sabina monosperma (Engelm.) Rydb.   3/0
JUOC Juniperus occidentalis Hook. western juniper 4/0
JUOCA Juniperus occidentalis Hook. var. australis (Vasek) A.& N. Holmgren western juniper 2/0
JUOCA2 Juniperus occidentalis Hook. ssp. australis Vasek   2/0
JUOCO Juniperus occidentalis Hook. var. occidentalis western juniper 9/0
JUOS Juniperus osteosperma (Torr.) Little Utah juniper 19/0
JUUT Juniperus utahensis (Engelm.) Lemmon   1/0
JUPH2 Juniperus phoenicea L. Phoenician juniper 2/0
JUSC2 Juniperus scopulorum Sarg. Rocky Mountain juniper 12/0
SASC5 Sabina scopulorum (Sarg.) Rydb.   2/0
JUVI Juniperus virginiana L. eastern redcedar 16/1
JUVIS Juniperus virginiana L. var. silicicola (Small) J. Silba southern redcedar 1/0
JUSI Juniperus silicicola (Small) L.H. Bailey   4/0
JUAM Justicia americana (L.) Vahl American water-willow 7/0
DIAM2 Dianthera americana L.   0/1
JUBE2 Justicia betonica L. squirrel's tail 3/0
JUBR6 Justicia brandegeeana Wasshausen & L.B. Sm. shrimpplant 2/0
JUCA8 Justicia californica (Benth.) D. Gibson beloperone    
BECA7 Beloperone californica Benth.   1/0
JUCA9 Justicia candicans (Nees) L. Benson Arizona water-willow    
JAOV Jacobinia ovata Gray   2/0
JUCA17 Justicia carnea Lindl. Brazilian-plume    
JACA9 Jacobinia carnea (Lindl.) G. Nicholson   1/0
JUCA10 Justicia carthagenensis Jacq. woodland water-willow 1/0
JUOV Justicia ovata (Walt.) Lindau looseflower water-willow 1/0
JUOVL Justicia ovata (Walt.) Lindau var. lanceolata (Chapman) R.W. Long looseflower water-willow 1/0
DILA17 Dianthera lanceolata (Chapman) Small   0/1
JUOVO Justicia ovata (Walt.) Lindau var. ovata looseflower water-willow    
DIOV2 Dianthera ovata Walt.   0/1
JUSP4 Justicia spicigera Schltdl. mohintli 1/0
KABL Kalanchoe blossfeldiana Poelln. Madagascar widow's-thrill 2/0
KADE Kalanchoe delagoensis Ecklon & Zeyh. chandelier plant    
BRTU Bryophyllum tubiflorum Harvey   1/0
KAGA Kalanchoe gastonis-bonnieri Hamet & Perrier palm beachbells 1/0
KAPI Kalanchoe pinnata (Lam.) Pers. cathedral bells 2/0
BRPI6 Bryophyllum pinnatum (Lam.) Oken   3/0
KAGR Kallstroemia grandiflora Torr. ex Gray Arizona poppy 6/0
KAHI Kallstroemia hirsutissima Vail ex Small hairy caltrop 0/1
KAPA Kallstroemia parviflora J.B.S. Norton warty caltrop    
KAIN3 Kallstroemia intermedia Rydb.   0/1
KALMI Kalmia L. laurel 1/2
KAAN Kalmia angustifolia L. sheep laurel 5/2
KACA2 Kalmia carolina Small Carolina laurel 0/1
KACU Kalmia cuneata Michx. whitewicky 1/0
KAHI2 Kalmia hirsuta Walt. hairy laurel 1/0
KAHI3 Kalmiella hirsuta (Walt.) Small   0/1
KALA Kalmia latifolia L. mountain laurel 25/2
KAMI Kalmia microphylla (Hook.) Heller alpine laurel 4/1
KAPO Kalmia polifolia Wangenh. bog laurel 5/1
KASE Kalopanax septemlobus (Thunb. ex A. Murr.) Koidz castor aralia    
KAPI2 Kalopanax pictus (Thunb.) Nakai   1/1
KEANA Keckiella antirrhinoides (Benth.) Straw ssp. antirrhinoides snapdragon penstemon    
PEAN10 Penstemon antirrhinoides Benth.   2/0
KEANM Keckiella antirrhinoides (Benth.) Straw ssp. microphylla (Gray) Straw snapdragon penstemon 1/0
KEBR Keckiella breviflora (Lindl.) Straw bush beardtongue 4/0
KEBRB Keckiella breviflora (Lindl.) Straw ssp. breviflora bush beardtongue 2/0
PEBR15 Penstemon breviflorus Lindl.   2/0
KEBRG Keckiella breviflora (Lindl.) Straw ssp. glabrisepala (Keck) Straw bush beardtongue 3/0
KECO Keckiella cordifolia (Benth.) Straw heartleaf keckiella 3/0
PECO30 Penstemon cordifolius Benth.   1/0
KECO2 Keckiella corymbosa (Benth. ex A. DC.) Straw redwood keckiella 2/0
PECO25 Penstemon corymbosus Benth. ex A. DC.   2/0
KEGA Kelloggia galioides Torr. milk kelloggia 1/0
KEJA Kerria japonica (L.) DC. Japanese rose 4/0
KEEV Keteleeria evelyniana Mast. Evelyn keteleeria 2/0
KIST Kiaeria starkei (Web. & Mohr) Hag. Starke's kiaeria moss 3/0
KIEL Kickxia elatine (L.) Dumort. sharpleaf cancerwort 1/1
KISP Kickxia spuria (L.) Dumort. roundleaf cancerwort 0/1
KIAF Kigelia africana (Lam.) Benth. sausage tree 8/0
KNAR Knautia arvensis (L.) Coult. field scabiosa 1/0
SCAR6 Scabiosa arvensis L.   0/1
KNIPH Kniphofia Moench redhot poker 1/0
KNUV80 Kniphofia uvaria (L.) Oken redhot poker 2/0
KOMY Kobresia myosuroides (Vill.) Fiori Bellardi bog sedge    
KOBE Kobresia bellardii (All.) K. Koch   0/1
KOMA Koeleria macrantha (Ledeb.) J.A. Schultes prairie Junegrass 3/0
KOCR Koeleria cristata auct. p.p., non Pers.   3/2
KOGR2 Koeleria gracilis Pers.   2/0
KOELR Koelreuteria Laxm. koelreuteria 0/2
KOEL Koelreuteria elegans (Seem.) A.C. Sm. flamegold 2/0
KOELF Koelreuteria elegans (Seem.) A.C. Sm. ssp. formosana (Hayata) F.G. Mey. flamegold 4/0
KOPA Koelreuteria paniculata Laxm. goldenrain tree 8/0
KOIS Koenigia islandica L. island purslane    
MAIS Macounastrum islandicum (L.) Small   0/1
KOER3 Kohleria eriantha (Benth.) Hanst. 3/0
KOAM80 Kolkwitzia amabilis Graebn. beautybush 2/0
KOVI Kosteletzkya virginica (L.) K. Presl ex Gray Virginia saltmarsh mallow 6/2
KRAME Krameria L. ratany 1/0
KRER Krameria erecta Willd. ex J.A. Schultes littleleaf ratany 5/0
KRPA Krameria parvifolia Benth.   1/0
KRGR Krameria grayi Rose & Painter white ratany 6/0
KRIX Krameria ixine L. abrojo colorado 2/0
KRLA Krameria lanceolata Torr. trailing krameria 2/1
KRLA2 Krascheninnikovia lanata (Pursh) A.D.J. Meeuse & Smit winterfat 6/0
EULA5 Eurotia lanata (Pursh) Moq.   4/2
KRBI Krigia biflora (Walt.) Blake twoflower dwarfdandelion 5/0
KRBIB Krigia biflora (Walt.) Blake var. biflora twoflower dwarfdandelion    
CYVI13 Cynthia virginica (L.) D. Don, non Hyoseris virginica L.   0/1
KRCA Krigia caespitosa (Raf.) Chambers weedy dwarfdandelion 2/0
KRCE Krigia cespitosa (Raf.) Chambers [orthographic variant]   2/0
SEOP Serinia oppositifolia (Raf.) Kuntze   0/1
KRDA Krigia dandelion (L.) Nutt. potato dwarfdandelion 2/0
CYDA5 Cynthia dandelion (L.) DC.   0/1
KRMO Krigia montana (Michx.) Nutt. mountain dwarfdandelion 1/0
KROC Krigia occidentalis Nutt. western dwarfdandelion    
CYOC3 Cymbia occidentalis (Nutt.) Standl.   0/1
KRVI Krigia virginica (L.) Willd. Virginia dwarfdandelion 4/2
KRFE Krugiodendron ferreum (Vahl) Urb. leadwood 1/0
KUST Kummerowia stipulacea (Maxim.) Makino Korean clover 1/0
KUST2 Kummerowia striata (Thunb.) Schindl. Japanese clover 3/1
LEST4 Lespedeza striata (Thunb.) Hook. & Arn.   4/1
KUPA Kurzia pauciflora (Dicks.) Grolle 5/0
KYBR Kyllinga brevifolia Rottb. shortleaf spikesedge    
CYBR Cyperus brevifolius (Rottb.) Endl. ex Hassk.   1/0
KYPU Kyllinga pumila Michx. low spikesedge 0/2
CYTE2 Cyperus tenuifolius (Steud.) Dandy   1/0
LAPU6 Lablab purpureus (L.) Sweet hyacinthbean 6/0
LAAN2 Laburnum anagyroides Medik. golden chain tree 4/1
LARE5 Lachenalia reflexa Thunb. 1/0
LACA5 Lachnanthes caroliana (Lam.) Dandy Carolina redroot 5/1
GYTI Gyrotheca tinctoria (J.F. Gmel.) Salisb. [orthographic variant]   0/1
LATI3 Lachnanthes tinctoria (J.F. Gmel.) Ell. [orthographic variant]   2/0
LAAN Lachnocaulon anceps (Walt.) Morong whitehead bogbutton 3/1
LABI Lactuca biennis (Moench) Fern. tall blue lettuce    
LASP4 Lactuca spicata auct. non (Lam.) A.S. Hitchc. [misapplied]   0/1
LACA Lactuca canadensis L. Canada lettuce 7/1
LACAL Lactuca canadensis L. var. latifolia Kuntze   1/0
LASA4 Lactuca sagittifolia Ell.   0/1
LAST8 Lactuca steelei Britt.   0/1
LAFL Lactuca floridana (L.) Gaertn. woodland lettuce 4/1
LAFLV Lactuca floridana (L.) Gaertn. var. villosa (Jacq.) Cronq. woodland lettuce    
LAVI4 Lactuca villosa Jacq.   0/1
LAHI Lactuca hirsuta Muhl. ex Nutt. hairy lettuce 0/1
LAIN13 Lactuca indica L. Indian lettuce 1/0
LALU Lactuca ludoviciana (Nutt.) Riddell biannual lettuce 0/1
LASA Lactuca saligna L. willowleaf lettuce 1/1
LASA3 Lactuca sativa L. garden lettuce 1/0
LASE Lactuca serriola L. prickly lettuce 5/1
LATAP Lactuca tatarica (L.) C.A. Mey. var. pulchella (Pursh) Breitung blue lettuce 1/0
LAPU Lactuca pulchella (Pursh) DC.   0/1
LAVI8 Lactuca virosa L. bitter lettuce 1/1
LASI Lagenaria siceraria (Molina) Standl. bottle gourd 4/0
LAIN Lagerstroemia indica L. crapemyrtle 2/0
LARA2 Laguncularia racemosa (L.) Gaertn. f. white mangrove 8/0
LAOV Lagurus ovatus L. harestail grass 3/1
LAPE3 Lallemantia peltata (L.) Fisch. & C.A. Mey. lion's heart 1/0
LAAU Lamarckia aurea (L.) Moench goldentop grass 2/1
LAGA2 Lamiastrum galeobdolon (L.) Ehrend. & Polatschek yellow archangel 2/0
LAAL Lamium album L. white deadnettle 0/1
LAAM Lamium amplexicaule L. henbit deadnettle 9/1
LAMA Lamium maculatum L. spotted henbit 0/1
LAPU2 Lamium purpureum L. purple deadnettle 3/1
LAMPR Lampranthus N.E. Br. lampranthus 1/0
LACO5 Lampranthus coccineus (Haw.) N.E. Br. redflush 1/0
LARO3 Lampranthus roseus (Willd.) Schwantes 2/0
LAVR Lampranthus vredenbergensis L. Bolus Vredenberg ice plant 1/0
LASP8 Lamprocapnos spectabilis (L.) Fukuhara bleeding heart 1/0
LAOW Landolphia owariensis P. Beauv. white rubber vine    
LAST10 Landolphia stolzii Busse   1/0
LASE3 Langloisia setosissima (Torr. & Gray ex Torr.) Greene Great Basin langloisia 4/0
LASEP Langloisia setosissima (Torr. & Gray ex Torr.) Greene ssp. punctata (Gray ex Coville) Timbrook Great Basin langloisia 7/0
LAPU5 Langloisia punctata (Gray ex Coville) Goodding   5/0
LASES Langloisia setosissima (Torr. & Gray ex Torr.) Greene ssp. setosissima Great Basin langloisia 3/0
LANTA Lantana L. lantana 2/0
LAAC Lantana achyranthifolia Desf. brushland shrubverbena 3/0
LACA2 Lantana camara L. lantana 3/0
LACA3 Laportea canadensis (L.) Weddell Canadian woodnettle 3/1
URDI3 Urticastrum divaricatum (L.) Kuntze   0/1
LAMA9 Lappula marginata (Bieb.) Guerke margined stickseed 3/0
LAOC3 Lappula occidentalis (S. Wats.) Greene flatspine stickseed 3/0
LAOCC Lappula occidentalis (S. Wats.) Greene var. cupulata (Gray) Higgins flatspine stickseed    
LATE3 Lappula texana (Scheele) Britt.   1/1
LAOCO Lappula occidentalis (S. Wats.) Greene var. occidentalis flatspine stickseed    
LARE Lappula redowskii auct. non (Hornem.) Greene [misapplied]   2/0
LASQ Lappula squarrosa (Retz.) Dumort. European stickseed    
LALA11 Lappula lappula (L.) Karst.   0/1
LACO3 Lapsana communis L. common nipplewort 1/1
LARIX Larix P. Mill. larch 2/0
LADE2 Larix decidua P. Mill. European larch 1/0
LALA Larix laricina (Du Roi) K. Koch tamarack 7/3
LALY Larix lyallii Parl. subalpine larch 8/0
LAOC Larix occidentalis Nutt. western larch 15/0
LASI3 Larix sibirica Ledeb. Siberian larch 4/0
LATR2 Larrea tridentata (Sessé & Moc. ex DC.) Coville creosote bush 14/1
LATRT Larrea tridentata (Sessé & Moc. ex DC.) Coville var. tridentata creosote bush    
LADI2 Larrea divaricata auct. non Cav. [misapplied]   3/0
LADI3 Lasiacis divaricata (L.) A.S. Hitchc. smallcane 1/1
LASTH Lasthenia Cass. goldfields 1/0
LACA7 Lasthenia californica DC. ex Lindl. California goldfields 2/0
LACAC2 Lasthenia californica DC. ex Lindl. ssp. californica California goldfields    
LACH3 Lasthenia chrysostoma (Fisch. & C.A. Mey.) Greene   3/0
LACAM3 Lasthenia californica DC. ex Lindl. ssp. macrantha (Gray) R. Chan perennial goldfields    
LAMA6 Lasthenia macrantha (Gray) Greene   3/0
LACH2 Lasthenia chrysantha (Greene ex Gray) Greene alkalisink goldfields    
CRCH9 Crockeria chrysantha Greene ex Gray   1/0
LACO6 Lasthenia conjugens Greene Contra Costa goldfields 4/0
LAFE Lasthenia ferrisiae Ornduff Ferris' goldfields 2/0
LAFR4 Lasthenia fremontii (Torr. ex Gray) Greene Fremont's goldfields 1/0
LAGR10 Lasthenia gracilis (DC.) Greene needle goldfields 4/0
LAMI5 Lasthenia minor (DC.) Ornduff coastal goldfields 1/0
LATHY Lathyrus L. pea 1/0
LABRB Lathyrus brachycalyx Rydb. ssp. brachycalyx Bonneville pea    
LAOR2 Lathyrus ornatus Nutt.   0/1
LABRZ2 Lathyrus brachycalyx Rydb. ssp. zionis (C.L. Hitchc.) Welsh bush pea    
LAZI3 Lathyrus zionis C.L. Hitchc.   3/0
LACI Lathyrus cicera L. red pea 1/0
LAHI2 Lathyrus hirsutus L. Caley pea 1/0
LAHI4 Lathyrus hitchcockianus Barneby & Reveal Bullfrog Mountain pea 1/0
LAJA Lathyrus japonicus Willd. beach pea 3/0
LAJAM Lathyrus japonicus Willd. var. maritimus (L.) Kartesz & Gandhi beach pea    
LAMA3 Lathyrus maritimus Bigelow   0/1
LALA3 Lathyrus lanszwertii Kellogg Nevada pea 4/0
LALAB2 Lathyrus lanszwertii Kellogg var. brownii (Eastw.) Jepson Brown's pea 2/0
LALAL3 Lathyrus lanszwertii Kellogg var. leucanthus (Rydb.) Dorn Nevada pea    
LAAR6 Lathyrus arizonicus Britt.   1/0
LALE2 Lathyrus leucanthus Rydb.   3/0
LALA4 Lathyrus latifolius L. perennial pea 6/1
LALI2 Lathyrus littoralis (Nutt.) Endl. silky beach pea 2/0
LANEN Lathyrus nevadensis S. Wats. ssp. nevadensis Sierra pea 1/0
LAOC2 Lathyrus ochroleucus Hook. cream pea 0/1
LAOD Lathyrus odoratus L. sweetpea 1/0
LAPA4 Lathyrus palustris L. marsh pea 1/1
LAMY Lathyrus myrtifolius Muhl. ex Willd.   0/1
LAPA5 Lathyrus pauciflorus Fern. fewflower pea 3/0
LAPOP2 Lathyrus polymorphus Nutt. ssp. polymorphus var. polymorphus manystem pea    
LADE4 Lathyrus decaphyllus Pursh   0/1
LAPO3 Lathyrus polyphyllus Nutt. leafy pea 1/0
LAPR Lathyrus pratensis L. meadow pea 1/1
LAPU3 Lathyrus pusillus Ell. tiny pea 0/1
LARI Lathyrus rigidus White stiff pea 4/0
LASA2 Lathyrus sativus L. white pea 1/0
LASY Lathyrus sylvestris L. flat pea 3/0
LATI Lathyrus tingitanus L. Tangier pea 1/0
LATU Lathyrus tuberosus L. tuberous sweetpea 2/0
LAVE Lathyrus venosus Muhl. ex Willd. veiny pea 0/1
LAVE7 Lathyrus vernus (L.) Bernh. spring-vetch 1/0
LAVEB Lathyrus vestitus Nutt. ssp. bolanderi (S. Wats.) C.L. Hitchc. Bolander's pea    
LABO4 Lathyrus bolanderi S. Wats.   1/0
LAUNA Launaea Cass. launaea 1/0
LANO80 Laurus nobilis L. sweet bay 3/0
LAAN81 Lavandula angustifolia P. Mill. English lavender 2/0
LASP6 Lavandula spica L.   1/0
LAST9 Lavandula stoechas L. French lavender 1/0
LAAS Lavatera assurgentiflora Kellogg island mallow 1/0
LAASA Lavatera assurgentiflora Kellogg ssp. assurgentiflora island mallow 2/0
LAASG Lavatera assurgentiflora Kellogg ssp. glabra Philbrick southern island mallow 2/0
LACR Lavatera cretica L. Cornish mallow 3/0
LATH Lavatera thuringiaca L. tree lavatera 1/0
LACA4 Layia carnosa (Nutt.) Torr. & Gray beach tidytips 5/0
LACH Layia chrysanthemoides (DC.) Gray smooth tidytips 2/0
LAFR2 Layia fremontii (Torr. & Gray) Gray Fremont's tidytips 1/0
LAGL5 Layia glandulosa (Hook.) Hook. & Arn. whitedaisy tidytips 8/0
LAJO Layia jonesii Gray Jones' tidytips 2/0
LAMU2 Layia munzii Keck Munz's tidytips 4/0
LAPL Layia platyglossa (Fisch. & C.A. Mey.) Gray coastal tidytips 5/0
LEKR2 Leandra krugii (Cogn.) Judd & Skean Mt. Cerrote angleflower 1/0
LEAVE Leavenworthia Torr. gladecress 2/0
LEAU Leavenworthia aurea Torr. golden gladecress 1/0
LEEX Leavenworthia exigua Rollins Tennessee gladecress 1/0
LETO Leavenworthia torulosa Gray necklace gladecress 1/1
LEUN Leavenworthia uniflora (Michx.) Britt. Michaux's gladecress 1/1
LECAN4 Lecanora Ach. rim lichen 3/0
LEIN Lechea intermedia Leggett ex Britt. largepod pinweed 0/1
LEINJ Lechea intermedia Leggett ex Britt. var. juniperina (Bickn.) B.L. Robins. largepod pinweed    
LEJU Lechea juniperina Bickn.   0/1
LEMA Lechea maritima Leggett ex B.S.P. beach pinweed 0/1
LEMI Lechea minor L. thymeleaf pinweed 0/1
LEMU3 Lechea mucronata Raf. hairy pinweed    
LEVI Lechea villosa Ell.   0/1
LEPUP2 Lechea pulchella Raf. var. pulchella Leggett's pinweed    
LELE Lechea leggettii Britt. & Hollick   0/1
LERA Lechea racemulosa Michx. Illinois pinweed 0/1
LEST Lechea stricta Leggett ex Britt. prairie pinweed 0/1
LETE Lechea tenuifolia Michx. narrowleaf pinweed 0/1
LEGL Ledum glandulosum Nutt. western Labrador tea 7/1
LEGR Ledum groenlandicum Oeder bog Labrador tea 1/1
LEPAD Ledum palustre L. ssp. decumbens (Ait.) Hultén marsh Labrador tea 1/0
LEDE5 Ledum decumbens (Ait.) Lodd. ex Steud.   0/1
LEHE Leersia hexandra Sw. southern cutgrass 0/1
LELE2 Leersia lenticularis Michx. catchfly grass 0/1
HOLE5 Homalocenchrus lenticularis (Michx.) Kuntze   0/1
LEMO Leersia monandra Sw. bunch cutgrass 0/1
LEOR Leersia oryzoides (L.) Sw. rice cutgrass 6/2
HOOR3 Homalocenchrus oryzoides (L.) Pollich   0/1
LEVI2 Leersia virginica Willd. whitegrass 1/2
HOVI4 Homalocenchrus virginicus (Willd.) Britt.   0/1
LELI Legenere limosa (Greene) McVaugh false Venus' looking glass 3/0
LESP2 Legousia speculum-veneris (L.) Fisch. ex A. DC. European Venus' looking glass 1/0
LEBU Leiophyllum buxifolium (Berg.) Ell. sandmyrtle 1/0
DEBU2 Dendrium buxifolium (Berg.) Desv.   0/1
LEFL Leitneria floridana Chapman corkwood 3/1
LECA64 Lejeunea cavifolia (Ehrh.) Lindb. emend. H. Buch 3/0
LELA41 Lejeunea lamacerina (Steph.) Schiffn. 2/0
LEMNA Lemna L. duckweed 2/0
LEGI Lemna gibba L. swollen duckweed 1/1
LEMI3 Lemna minor L. common duckweed 1/2
LEMI6 Lemna minuta Kunth least duckweed    
LEMI10 Lemna minima Phil. ex Hegelm., non Thuill. ex Beauv.   0/1
LEPE Lemna perpusilla Torr. minute duckweed 1/2
LETR Lemna trisulca L. star duckweed 1/2
LEVA Lemna valdiviana Phil. valdivia duckweed 1/1
LECY5 Lemna cyclostasa (Ell.) C.H. Thompson   0/1
LEONO Leonotis (Pers.) Ait. f. lion's ear 1/0
LELE3 Leonotis leonurus (L.) R. Br. ex Ait. f. lion's ear 3/0
LENE Leonotis nepetifolia (L.) R. Br. ex Ait. f. Christmas candlestick 7/0
LEAUA Leontodon autumnalis L. ssp. autumnalis fall dandelion    
APAU2 Apargia autumnalis (L.) Hoffmann   0/1
LEHIH Leontodon hispidus L. ssp. hispidus bristly hawkbit    
APHI Apargia hispida (L.) Willd.   0/1
LETAT Leontodon taraxacoides (Vill.) Mérat ssp. taraxacoides lesser hawkbit    
APNU Apargia nudicaulis (L.) Britt.   0/1
LECA2 Leonurus cardiaca L. common motherwort 4/1
LESI Leonurus sibiricus L. honeyweed 1/1
LECA3 Lepechinia calycina (Benth.) Epling ex Munz woodbalm 1/0
LEFR Lepechinia fragrans (Greene) Epling island pitchersage 4/0
LEHA Lepechinia hastata (Gray) Epling pakaha 3/0
LEAU3 Lepidium austrinum Small southern pepperwort 1/0
LECA5 Lepidium campestre (L.) Ait. f. field pepperweed 2/1
LECR12 Lepidium crenatum (Greene) Rydb. alkali pepperweed 3/0
LEDA2 Lepidium davisii Rollins Davis' pepperweed 9/0
LEDE Lepidium densiflorum Schrad. common pepperweed 1/1
LEFL2 Lepidium flavum Torr. yellow pepperweed 4/0
LEFLF2 Lepidium flavum Torr. var. flavum yellow pepperweed 2/0
LEFR2 Lepidium fremontii S. Wats. desert pepperweed 7/0
LELA Lepidium lasiocarpum Nutt. shaggyfruit pepperweed 5/0
LELA2 Lepidium latifolium L. broadleaved pepperweed 1/0
LEMO2 Lepidium montanum Nutt. mountain pepperweed 13/0
LENA2 Lepidium nanum S. Wats. dwarf pepperweed 8/0
LENI Lepidium nitidum Nutt. shining pepperweed 1/0
LEOB Lepidium oblongum Small veiny pepperweed 1/0
LEOBI Lepidium oblongum Small var. insulare C.L. Hitchc. veiny pepperweed 2/0
LEPA17 Lepidium papilliferum (L.F. Hend.) A. Nelson & J.F. Macbr. Idaho pepperweed 7/0
LEPE2 Lepidium perfoliatum L. clasping pepperweed 1/0
LERU Lepidium ruderale L. roadside pepperweed 0/1
LESA2 Lepidium sativum L. gardencress pepperweed 1/1
LEVI3 Lepidium virginicum L. Virginia pepperweed 12/2
LERE17 Lepidozia reptans (L.) Dumort. 3/0
LEPRA Lepraria Ach. dust lichen 1/0
LEPY Leptarrhena pyrolifolia (D. Don) R. Br. ex Ser. fireleaf leptarrhena 2/0
LEPY70 Leptobryum pyriforme (Hedw.) Wils. leptobryum moss 3/0
LEPTO7 Leptocereus (Berger) Britt. & Rose leptocereus 1/0
LEQU Leptocereus quadricostatus (Bello) Britt. & Rose pitahaya 1/0
LECH Leptochloa chloridiformis (Hack. ex Stuck.) Parodi Argentine sprangletop 2/1
LEDU Leptochloa dubia (Kunth) Nees green sprangletop 4/1
LEFU21 Leptochloa fusca (L.) Kunth Malabar sprangletop 2/1
LEFUF Leptochloa fusca (L.) Kunth ssp. fascicularis (Lam.) N. Snow bearded sprangletop    
DIAC3 Diplachne acuminata Nash   0/1
DIFA4 Diplachne fascicularis (Lam.) Beauv.   0/1
DIMA10 Diplachne maritima Bickn.   0/1
LEFA Leptochloa fascicularis (Lam.) Gray   0/1
LEFUU Leptochloa fusca (L.) Kunth ssp. uninervia (J. Presl) N. Snow Mexican sprangletop    
LEUN2 Leptochloa uninervia (J. Presl) A.S. Hitchc. & Chase   2/1
LENE2 Leptochloa nealleyi Vasey Nealley's sprangletop 0/1
LEPAB Leptochloa panicea (Retz.) Ohwi ssp. brachiata (Steudl.) N. Snow mucronate sprangeltop    
LEFI Leptochloa filiformis (Lam.) Beauv.   0/2
LEPAM Leptochloa panicea (Retz.) Ohwi ssp. mucronata (Michx.) Nowack mucronate sprangletop    
LEAT Leptochloa attenuata (Nutt.) Steud.   0/1
LEPA3 Leptochloa panicoides (J. Presl) A.S. Hitchc. Amazon sprangletop 0/1
LESC Leptochloa scabra Nees rough sprangletop 0/1
LEVI4 Leptochloa virgata (L.) Beauv. Judd's grass 2/1
LEDO4 Leptochloa domingensis (Jacq.) Trin.   2/1
LEVI5 Leptochloa viscida (Scribn.) Beal sticky sprangletop 0/1
LEPTO2 Leptodactylon Hook. & Arn. pricklyphlox 2/0
LECA7 Leptodactylon californicum Hook. & Arn. California prickly phlox 5/0
LERI6 Leptodictyum riparium (Hedw.) Warnst. streamside leptodictyum moss    
AMRI4 Amblystegium riparium (Hedw.) Schimp. in B.S.G.   3/0
LESM2 Leptodon smithii (Hedw.) Web. & Mohr Smith's leptodon moss 6/0
LEPH11 Leptopus phyllanthoides (Nutt.) G.L. Webster Missouri maidenbush    
ANPH Andrachne phyllanthoides (Nutt.) Coult.   0/1
LEAUA3 Leptosiphon aureus (Nutt.) J.M. Porter & L.A. Johnson ssp. aureus golden linanthus    
LIAU Linanthus aureus (Nutt.) Greene   3/0
LEAUD Leptosiphon aureus (Nutt.) J.M. Porter & L.A. Johnson ssp. decorus (Gray) J.M. Porter & L.A. Johnson golden linanthus    
LIAUD Linanthus aureus (Nutt.) Greene ssp. decorus (Gray) Mason   3/0
LEBI8 Leptosiphon bicolor Nutt. true babystars    
LIBI Linanthus bicolor (Nutt.) Greene   2/0
LECIC2 Leptosiphon ciliatus (Benth.) Jepson ssp. ciliatus whiskerbrush    
LICI Linanthus ciliatus (Benth.) Greene   4/0
LECIN Leptosiphon ciliatus (Benth.) Jepson ssp. neglectus (Greene) J.M. Porter & L.A. Johnson whiskerbrush    
LICIN Linanthus ciliatus (Benth.) Greene var. neglectus (Greene) Jepson   1/0
LEGR23 Leptosiphon grandiflorus (Benth.) J.M. Porter & L.A. Johnson largeflower linanthus    
LIGR3 Linanthus grandiflorus (Benth.) Greene   2/0
LEMO19 Leptosiphon montanus (Greene) J.M. Porter & L.A. Johnson mustang clover    
LIMO Linanthus montanus (Greene) Greene   1/0
LENUN Leptosiphon nuttallii (Gray) J.M. Porter & L.A. Johnson ssp. nuttallii Nuttall's linanthus    
LINU4 Linanthastrum nuttallii (Gray) Ewan   2/0
LINU3 Linanthus nuttallii (Gray) Greene ex Milliken   5/0
LENUP Leptosiphon nuttallii (Gray) J.M. Porter & L.A. Johnson ssp. pubescens (Patterson) J.M. Porter & L.A. Johnson Nuttall's linanthus    
LINUP Linanthus nuttallii (Gray) Greene ex Milliken ssp. pubescens Patterson   4/0
LEPA50 Leptosiphon pachyphyllus (Patterson) J.M. Porter & L.A. Johnson Sierra linanthus    
LIPA10 Linanthus pachyphyllus Patterson   2/0
LEPA51 Leptosiphon parviflorus (Benth.) J.M. Porter & L.A. Johnson variable linanthus    
LIANL3 Linanthus androsaceus (Benth.) Greene ssp. luteus (Benth.) Mason   2/0
LIPA12 Linanthus parviflorus (Benth.) Greene   1/0
LESE17 Leptosiphon septentrionalis (H. Mason) J.M. Porter & L.A. Johnson northern linanthus 1/0
LESC2 Leptospermum scoparium J.R. & G. Forst. broom teatree 2/0
LERE Lepturus repens (G. Forst.) R. Br. Pacific Island thintail 2/0
LEHO7 Lepyrodiclis holosteoides (C.A. Mey.) Fenzl ex Fisch. & C.A. Mey. false jagged-ckickweed 1/0
LESA14 Lescuraea saxicola (Schimp. in B.S.G.) Milde lescuraea moss 3/0
LEPO14 Leskea polycarpa Hedw. leskea moss 5/0
LENE15 Leskeella nervosa (Brid.) Loeske leskeella 5/0
LESPE Lespedeza Michx. lespedeza 2/1
LEAC Lespedeza ×acuticarpa Mackenzie & Bush (pro sp.) [violacea × virginica] 0/1
LEAN Lespedeza angustifolia (Pursh) Ell. narrowleaf lespedeza 0/1
LEBI2 Lespedeza bicolor Turcz. shrub lespedeza 3/0
LEBR2 Lespedeza ×brittonii Bickn. (pro sp.) [procumbens × virginica] 0/1
LECA8 Lespedeza capitata Michx. roundhead lespedeza 3/1
LECU Lespedeza cuneata (Dum.-Cours.) G. Don sericea lespedeza 6/0
LECY80 Lespedeza cyrtobotrya Miq. leafy lespedeza 1/0
LEDA3 Lespedeza daurica (Laxm.) Schindl. Dahurian lespedeza 1/0
LEFO3 Lespedeza formosa (Vogel) Koehne Oriental lespedeza 1/0
LEFR5 Lespedeza frutescens (L.) Hornem. shrubby lespedeza 1/1
LEHI2 Lespedeza hirta (L.) Hornem. hairy lespedeza 3/1
LELE5 Lespedeza leptostachya Engelm. prairie lespedeza 1/1
LEMA6 Lespedeza ×manniana Mackenzie & Bush (pro sp.) [capitata × violacea] 0/1
LENUM2 Lespedeza nuttallii Darl. var. manniana (Mackenzie & Bush) Gleason   0/1
LENU Lespedeza ×nuttallii Darl. (pro sp.) [hirta × intermedia] 0/1
LEPR Lespedeza procumbens Michx. trailing lespedeza 5/1
LERE2 Lespedeza repens (L.) W. Bart. creeping lespedeza 6/1
LESI2 Lespedeza ×simulata Mackenzie & Bush (pro sp.) [capitata × virginica] 0/1
LEST5 Lespedeza stuevei Nutt. tall lespedeza 0/1
LETH4 Lespedeza thunbergii (DC.) Nakai Thunberg's lespedeza 5/0
LEVI6 Lespedeza violacea (L.) Pers. violet lespedeza 0/1
LEIN2 Lespedeza intermedia sensu Clewell, 1966   4/0
LEVI80 Lespedeza virgata (Thunb.) DC. wand lespedeza 1/0
LEVI7 Lespedeza virginica (L.) Britt. slender lespedeza 7/1
LESQU Lesquerella S. Wats. bladderpod 2/0
LEALS Lesquerella alpina (Nutt.) S. Wats. var. spathulata (Rydb.) Payson alpine bladderpod    
LESP4 Lesquerella spathulata Rydb.   0/1
LEAR2 Lesquerella arctica (Wormsk. ex Hornem.) S. Wats. arctic bladderpod 0/1
LEAR3 Lesquerella argyraea (Gray) S. Wats. silver bladderpod 2/0
LEAR4 Lesquerella arizonica S. Wats. Arizona bladderpod 4/0
LEAU5 Lesquerella aurea Woot. golden bladderpod 2/0
LECO10 Lesquerella congesta Rollins Dudley Bluffs bladderpod 1/0
LEDE2 Lesquerella densiflora (Gray) S. Wats. denseflower bladderpod 2/0
LEDE3 Lesquerella densipila Rollins Duck River bladderpod 1/0
LEEN Lesquerella engelmannii (Gray) S. Wats. Engelmann's bladderpod 2/0
LEFE Lesquerella fendleri (Gray) S. Wats. Fendler's bladderpod 12/0
LEGL2 Lesquerella globosa (Desv.) S. Wats. globe bladderpod 0/1
LEGO2 Lesquerella gooddingii Rollins & Shaw Goodding's bladderpod 4/0
LEGO Lesquerella gordonii (Gray) S. Wats. Gordon's bladderpod 6/0
LEGR2 Lesquerella gracilis (Hook.) S. Wats. spreading bladderpod 0/1
LEIN3 Lesquerella intermedia (S. Wats.) Heller mid bladderpod 2/0
LEKI Lesquerella kingii S. Wats. King bladderpod 1/0
LELU Lesquerella ludoviciana (Nutt.) S. Wats. foothill bladderpod 0/1
LEMA4 Lesquerella macrocarpa A. Nels. largefruit bladderpod 1/0
LEMC Lesquerella mcvaughiana Rollins McVaugh's bladderpod 6/0
LEOV Lesquerella ovalifolia Rydb. ex Britt. roundleaf bladderpod 0/1
LEPA48 Lesquerella palmeri S. Wats. [excluded] bladder pod 1/0
LEPA10 Lesquerella parviflora Rollins Piceance bladderpod 1/0
LEPU2 Lesquerella purpurea (Gray) S. Wats. rose bladderpod 6/0
LERE3 Lesquerella rectipes Woot. & Standl. straight bladderpod 2/0
LERU4 Lesquerella rubicundula Rollins tum bladderpod 2/0
LETU Lesquerella tumulosa (Barneby) Reveal   2/0
LESU Lesquerella subumbellata Rollins parasol bladderpod 1/0
LEVA2 Lesquerella valida Greene strong bladderpod 5/0
LELE10 Leucaena leucocephala (Lam.) de Wit white leadtree 7/1
LERE5 Leucaena retusa Benth. littleleaf leadtree 7/0
LELA10 Leucanthemum lacustre (Brot.) Samp. Portuguese daisy    
CHLA14 Chrysanthemum lacustre Brot.   1/0
LEMA8 Leucanthemum maximum (Ramond) DC. max chrysanthemum 1/0
CHMA12 Chrysanthemum maximum Ramond   1/0
LESU49 Leucanthemum ×superbum (Bergmans ex J.W. Ingram) Bergmans ex Kent. [maximum × lacustre] 3/0
LEVU Leucanthemum vulgare Lam. oxeye daisy 7/0
CHLE80 Chrysanthemum leucanthemum L.   7/1
LEGL19 Leucobryum glaucum (Hedw.) Ångstr. in Fries leucobryum moss 5/0
LEMO4 Leucocrinum montanum Nutt. ex Gray common starlily 13/1
LEBRA Leucodon brachypus Brid. var. andrewsianus Crum & Anderson Andrews' lecodon moss    
LESC9 Leucodon sciuroides auct. Amer.   5/0
LEAE Leucojum aestivum L. summer snowflake 4/0
LEVE3 Leucojum vernum L. spring snowflake 1/0
LEUCO3 Leucophyllum Bonpl. barometerbush 3/0
LEFR3 Leucophyllum frutescens (Berl.) I.M. Johnston Texas barometer bush 6/0
LEMI4 Leucophyllum minus Gray Big Bend barometerbush 1/0
LEZY Leucophyllum zygophyllum I.M. Johnst. cimmeron 2/0
LEGR7 Leucophysalis grandiflora (Hook.) Rydb. large false groundcherry 0/1
LENA3 Leucophysalis nana (Gray) Averett dwarf chamaesaracha 4/0
CHNA3 Chamaesaracha nana (Gray) Gray   1/0
LEKI2 Leucopoa kingii (S. Wats.) W.A. Weber spike fescue    
FECO5 Festuca confinis Vasey   0/1
FEKI2 Festuca kingii (S. Wats.) Cassidy   2/1
LECO46 Leucospermum cordifolium (Salisb. ex Knight) Fourc. red pincushion-protea 2/0
LEMU Leucospora multifida (Michx.) Nutt. narrowleaf paleseed 1/1
COMU4 Conobea multifida (Michx.) Benth.   0/1
LEUCO5 Leucothoe D. Don doghobble 2/0
LEAX Leucothoe axillaris (Lam.) D. Don coastal doghobble 6/2
LEDA Leucothoe davisiae Torr. ex Gray Sierra laurel 3/0
LEFO Leucothoe fontanesiana (Steud.) Sleumer highland doghobble 1/0
LECA14 Leucothoe catesbaei (Walt.) Gray   0/1
LEOF Levisticum officinale W.D.J. Koch garden lovage 1/0
HILE3 Hipposelinum levisticum (L.) Britt. & Rose   0/1
LEBR Lewisia brachycalyx Engelm. ex Gray shortsepal lewisia 3/0
LECO3 Lewisia columbiana (Howell ex A. Gray) B.L. Rob. Columbian lewisia 2/0
LECOW Lewisia columbiana (T.J. Howell ex Gray) B.L. Robins. var. wallowensis C.L. Hitchc. Wallowa lewisia 1/0
LECO5 Lewisia cotyledon (S. Wats.) B.L. Robins. Siskiyou lewisia 6/0
LECOC2 Lewisia cotyledon (S. Wats.) B.L. Robins. var. cotyledon Siskiyou lewisia 4/0
LECOH Lewisia cotyledon (S. Wats.) B.L. Robins. var. heckneri (Morton) Munz Heckner's lewisia 3/0
LEDI3 Lewisia disepala Rydb. Yosemite lewisia 1/0
LEKE Lewisia kelloggii K. Brandeg. Kellogg's lewisia 3/0
LELE8 Lewisia leeana (Porter) B.L. Robins. quill-leaf lewisia 9/0
LELO2 Lewisia longipetala (Piper) S. Clay Truckee lewisia 4/0
LEMA3 Lewisia maguirei A. Holmgren Maguire's lewisia 3/0
LENE5 Lewisia nevadensis (Gray) B.L. Robins. Nevada lewisia 7/0
ORNE2 Oreobroma nevadense (Gray) T.J. Howell   1/0
LEOP Lewisia oppositifolia (S. Wats.) B.L. Robins. oppositeleaf lewisia 1/0
LEPY2 Lewisia pygmaea (Gray) B.L. Robins. alpine lewisia 10/0
LERE7 Lewisia rediviva Pursh bitter root 19/0
LESE3 Lewisia serrata Heckard & Stebbins sawtooth lewisia 2/0
LETR2 Lewisia triphylla (S. Wats.) B.L. Robins. threeleaf lewisia 6/0
LEFO2 Leycesteria formosa Wallich Himalayan honeysuckle 2/0
LEAM Leymus ambiguus (Vasey & Scribn.) D.R. Dewey Colorado wildrye    
ELAM2 Elymus ambiguus Vasey & Scribn.   1/1
LEAN3 Leymus angustus (Trin.) Pilger [excluded] Altai wildrye 2/0
LEAR11 Leymus arenarius (L.) Hochst. sand ryegrass    
ELAR Elymus arenarius L.   1/1
LECI4 Leymus cinereus (Scribn. & Merr.) A. Löve basin wildrye 4/0
ELCI2 Elymus cinereus Scribn. & Merr.   2/1
LECO12 Leymus condensatus (J. Presl) A. Löve giant wildrye    
ELCO4 Elymus condensatus J. Presl   3/2
LEFL4 Leymus flavescens (Scribn. & J.G. Sm.) Pilger yellow wildrye 2/0
ELAR2 Elymus arenicola Scribn. & J.G. Sm.   0/1
ELFL2 Elymus flavescens Scribn. & J.G. Sm.   0/1
LEIN6 Leymus innovatus (Beal) Pilger downy ryegrass    
ELIN4 Elymus innovatus Beal   0/1
LEMOM2 Leymus mollis (Trin.) Pilger ssp. mollis American dunegrass    
ELMO9 Elymus mollis Trin.   0/1
LEPA12 Leymus pacificus (Gould) D.R. Dewey Pacific wildrye    
ELPA7 Elymus pacificus Gould   0/1
LERA5 Leymus racemosus (Lam.) Tzvelev mammoth wildrye    
ELGI Elymus giganteus Vahl   2/0
LERAS Leymus racemosus (Lam.) Tzvelev ssp. sabulosus (Bieb.) Tzvelev [excluded] mammoth wildrye    
ELSA5 Elymus sabulosus Bieb. [excluded]   2/0
LESAS Leymus salinus (M.E. Jones) A. Löve ssp. salinus saline wildrye    
ELSA Elymus salinus M.E. Jones   0/1
LESI5 Leymus simplex (Scribn. & Williams) D.R. Dewey alkali wildrye    
ELSI2 Elymus simplex Scribn. & Williams   0/1
LETR5 Leymus triticoides (Buckl.) Pilger beardless wildrye    
ELTR3 Elymus triticoides Buckl.   2/1
LEVA3 Leymus ×vancouverensis (Vasey) Pilger (pro sp.) [mollis × triticoides]    
ELVA Elymus vancouverensis Vasey   0/1
LIATR Liatris Gaertn. ex Schreb. blazing star 3/0
LIAC Liatris acidota Engelm. & Gray sharp blazing star 1/0
LAAC2 Lacinaria acidota (Engelm. & Gray) Kuntze   0/1
LIAS Liatris aspera Michx. tall blazing star 9/0
LIBR Liatris bracteata Gaiser bracted blazing star 1/0
LICY Liatris cylindracea Michx. Ontario blazing star 1/0
LACY3 Lacinaria cylindracea (Michx.) Kuntze   0/1
LIEL Liatris elegans (Walt.) Michx. pinkscale blazing star 3/0
LIELE Liatris elegans (Walt.) Michx. var. elegans pinkscale blazing star    
LAEL Lacinaria elegans (Walt.) Kuntze   0/1
LILI Liatris ligulistylis (A. Nels.) K. Schum. Rocky Mountain blazing star 4/0
LIMU Liatris mucronata DC. cusp blazing star 1/0
LIPI7 Liatris pilosa (Ait.) Willd. shaggy blazing star 1/0
LIPIP Liatris pilosa (Ait.) Willd. var. pilosa shaggy blazing star    
LAGR7 Lacinaria graminifolia (Willd.) Kuntze   0/1
LAPI Lacinaria pilosa (Ait.) Heller   0/1
LIGR10 Liatris graminifolia Willd.   7/0
LIPU Liatris punctata Hook. dotted blazing star 5/0
LIPUP Liatris punctata Hook. var. punctata dotted blazing star    
LAPU8 Lacinaria punctata (Hook.) Kuntze   0/1
LIPY Liatris pycnostachya Michx. prairie blazing star 9/1
LIPYP Liatris pycnostachya Michx. var. pycnostachya prairie blazing star    
LAPY Lacinaria pycnostachya (Michx.) Kuntze   0/1
LISC2 Liatris scariosa (L.) Willd. devil's bite 1/0
LISCS3 Liatris scariosa (L.) Willd. var. scariosa devil's bite    
LASC5 Lacinaria scariosa (L.) Hill   0/1
LISP Liatris spicata (L.) Willd. dense blazing star 5/0
LISPR Liatris spicata (L.) Willd. var. resinosa (Nutt.) Gaiser dense blazing star 1/0
LISPS Liatris spicata (L.) Willd. var. spicata dense blazing star 1/0
LASP5 Lacinaria spicata (L.) Kuntze   0/1
LISQ Liatris squarrosa (L.) Michx. scaly blazing star 2/0
LISQS Liatris squarrosa (L.) Michx. var. squarrosa scaly blazing star    
LASQ2 Lacinaria squarrosa (L.) Hill   0/1
LISQ2 Liatris squarrulosa Michx. Appalachian blazing star 3/0
LITE Liatris tenuis Shinners Gulf blazing star 1/0
LIVI8 Liatris virgata Nutt. wand blazing star    
LASM Lacinaria smallii Britt.   0/1
LIMI5 Licania michauxii Prance gopher apple 1/0
LIPA9 Licaria parvifolia (Lam.) Kosterm. Puerto Rico cinnamon 2/0
LITR Licaria triandra (Sw.) Kosterm. pepperleaf sweetwood 1/0
MITR6 Misanteca triandra (Sw.) Mez   1/0
LICA16 Ligusticum canadense (L.) Britt. Canadian licorice-root 1/1
LICA2 Ligusticum canbyi (J.M. Coult. & Rose) J.M. Coult. & Rose Canby's licorice-root 2/0
LIGR Ligusticum grayi Coult. & Rose Gray's licorice-root 7/0
LIPO Ligusticum porteri Coult. & Rose Porter's licorice-root 3/0
LISC3 Ligusticum scoticum L. Scottish licorice-root 1/1
LIGUS2 Ligustrum L. privet 1/0
LIJA Ligustrum japonicum Thunb. Japanese privet 3/0
LILU2 Ligustrum lucidum Ait. f. glossy privet 3/0
LISI Ligustrum sinense Lour. Chinese privet 14/1
LIVU Ligustrum vulgare L. European privet 2/2
LISC4 Lilaea scilloides (Poir.) Hauman awl-leaf lilaea 3/0
LICH Lilaeopsis chinensis (L.) Kuntze eastern grasswort    
LILI7 Lilaeopsis lineata (Michx.) Greene   0/1
LIBO Lilium bolanderi S. Wats. Bolander's lily 6/0
LIBU Lilium bulbiferum L. orange lily 1/0
LICA3 Lilium canadense L. Canada lily 9/1
LICA4 Lilium catesbaei Walt. pine lily 4/1
LICO Lilium columbianum hort. ex Baker Columbia lily 12/0
LIGR2 Lilium grayi S. Wats. Gray's lily 5/1
LIHE6 Lilium henryi Baker Henry's lily 2/0
LIHU Lilium humboldtii Roezl & Leichtl. ex Duchartre Humboldt lily 3/0
LIHUO2 Lilium humboldtii Roezl & Leichtl. ex Duchartre ssp. ocellatum (Kellogg) Thorne Humboldt's lily 2/0
LIKE Lilium kelleyanum J.G. Lemmon Kelley's lily 12/0
LIKE2 Lilium kelloggii Purdy Kellogg's lily 8/0
LILA8 Lilium lancifolium Thunb. tiger lily 1/0
LITI Lilium tigrinum Ker-Gawl.   2/1
LIMA Lilium maritimum Kellogg coast lily 1/0
LIMI Lilium michauxii Poir. Carolina lily 3/0
LICA25 Lilium carolinianum Michx., non Bosc ex Lam.   0/1
LIMI9 Lilium michiganense Farw. Michigan lily 2/0
LIOC2 Lilium occidentale Purdy western lily 3/0
LIPA Lilium pardalinum Kellogg leopard lily 12/0
LIPAS Lilium pardalinum Kellogg ssp. shastense (Eastw.) Skinner Shasta lily 2/0
LIPAV Lilium pardalinum Kellogg ssp. vollmeri (Eastw.) Skinner Vollmer's lily 3/0
LIPAW2 Lilium pardalinum Kellogg ssp. wigginsii (Beane & Vollmer) Skinner, comb. nov. ined. Wiggins' lily 5/0
LIWI Lilium wigginsii Beane & Vollmer   3/0
LIPA2 Lilium parryi S. Wats. lemon lily 1/0
LIPA3 Lilium parvum Kellogg Sierra tiger lily 6/0
LIPH Lilium philadelphicum L. wood lily 9/1
LIPHA Lilium philadelphicum L. var. andinum (Nutt.) Ker-Gawl. wood lily    
LIUM2 Lilium umbellatum Pursh   0/1
LIPH4 Lilium philippinense Baker Philippine lily 2/0
LIRE6 Lilium regale E.H. Wilson regal lily 5/0
LIRU Lilium rubescens S. Wats. redwood lily 4/0
LISU Lilium superbum L. turk's-cap lily 7/1
LIWA Lilium washingtonianum Kellogg Washington lily 6/0
LIWAP2 Lilium washingtonianum Kellogg ssp. purpurascens (Stearn) M. W. Skinner Cascade lily    
LIWAP Lilium washingtonianum Kellogg var. purpurascens Stearn   4/0
LIWAW2 Lilium washingtonianum Kellogg ssp. washingtonianum washington lily    
LIWAM Lilium washingtonianum Kellogg var. minus Purdy   2/0
LIDO2 Limnanthes douglasii R. Br. Douglas' meadowfoam 2/0
LIDON2 Limnanthes douglasii R. Br. ssp. nivea (C.T. Mason) C.T. Mason Douglas' meadowfoam 2/0
LIDOR2 Limnanthes douglasii R. Br. ssp. rosea (Hartw. ex Benth.) C.T. Mason Douglas' meadowfoam 1/0
LIDOS2 Limnanthes douglasii R. Br. ssp. sulphurea (C.T. Mason) C.T. Mason Douglas' meadowfoam 4/0
LIVI3 Limnanthes vinculans Ornduff Sebastopol meadowfoam 2/0
LILA7 Limnobium laevigatum (Humb. & Bonpl. ex Willd.) Heine West Indian spongeplant 2/0
LISP2 Limnobium spongia (Bosc) L.C. Rich. ex Steud. American spongeplant 1/1
LIFL5 Limnocharis flava (L.) Buch. [excluded] yellow velvetleaf 3/0
LIAR Limnodea arkansana (Nutt.) L.H. Dewey Ozark grass 3/1
LIPI2 Limnosciadium pinnatum (DC.) Mathias & Constance tansy dogshade 1/0
CYPI6 Cynosciadium pinnatum DC.   0/1
LIPU2 Limnosciadium pumilum (Engelm. & Gray) Mathias & Constance prairie dogshade 1/0
LICA17 Limonium carolinianum (Walt.) Britt. Carolina sealavender 1/1
LIAC2 Limosella acaulis Sessé & Moc. Owyhee mudwort 1/0
LIAQ Limosella aquatica L. water mudwort 1/2
LIRE13 Limprichtia revolvens (Sw.) Loeske limprichtia moss    
DRRE70 Drepanocladus revolvens (Sw.) Warnst.   4/0
LICA36 Linanthus caespitosus (Nutt.) J.M. Porter & L.A. Johnson mat prickly phlox    
LECA6 Leptodactylon caespitosum Nutt.   3/1
LICA37 Linanthus campanulatus (Gray) J.M. Porter & L.A. Johnson bellshape gilia    
GICA2 Gilia campanulata Gray   2/0
LIDE2 Linanthus demissus (Gray) Greene desertsnow 2/0
LIDI Linanthus dianthiflorus (Benth.) Greene fringed linanthus 3/0
LIDI2 Linanthus dichotomus Benth. eveningsnow 4/0
LIGL6 Linanthus glabrum (R. Patt. & Yoder-Will.) J.M. Porter & L.A. Johnson smooth prickly phlox 6/0
LIKI Linanthus killipii Mason Baldwin Lake linanthus 6/0
LIPA4 Linanthus parryae (Gray) Greene sandblossoms 5/0
LIPU11 Linanthus pungens (Torr.) J.M. Porter & L.A. Johnson granite prickly phlox 1/0
LEPU Leptodactylon pungens (Torr.) Torr. ex Nutt.   9/0
LIDA Linaria dalmatica (L.) P. Mill. Dalmatian toadflax 4/0
LIGE Linaria genistifolia (L.) P. Mill. broomleaf toadflax 6/0
LIMA3 Linaria maroccana Hook. f. Moroccan toadflax 1/0
LIRE3 Linaria repens (L.) P. Mill. striped toadflax 0/1
LISU3 Linaria supina (L.) Chaz. lesser butter and eggs 0/1
LIVU2 Linaria vulgaris P. Mill. butter and eggs 8/0
LILI6 Linaria linaria (L.) Karst.   0/1
LINDE2 Lindera Thunb. spicebush 0/2
LIBE3 Lindera benzoin (L.) Blume northern spicebush 6/1
LIBEB Lindera benzoin (L.) Blume var. benzoin northern spicebush    
BEAE Benzoin aestivale (L.) Nees   0/1
LIME7 Lindera melissifolia (Walt.) Blume southern spicebush 1/1
BEME Benzoin melissifolium (Walt.) Nees   0/1
LIDU Lindernia dubia (L.) Pennell yellowseed false pimpernel 0/2
LIDUD Lindernia dubia (L.) Pennell var. dubia yellowseed false pimpernel    
ILAT3 Ilysanthes attenuata (Spreng.) Small   0/1
LIGR8 Lindernia grandiflora Nutt. savannah false pimpernel 1/0
LITE3 Lindheimera texana Gray & Engelm. Texas yellowstar 5/0
LIBO3 Linnaea borealis L. twinflower 17/0
LIBOA Linnaea borealis L. ssp. americana (Forbes) Hultén ex Clausen twinflower    
LIAM5 Linnaea americana Forbes   0/1
LIBOL2 Linnaea borealis L. ssp. longiflora (Torr.) Hultén longtube twinflower 2/0
LIMO10 Linospadix monostachya (Mart.) H. Wendl. walking-stick palm 2/0
LIAL2 Linum alatum (Small) Winkl. winged flax 1/0
LIAR3 Linum aristatum Engelm. bristle flax 5/0
MEAR9 Mesynium aristatum (Engelm.) W.A. Weber   3/0
LIBE2 Linum berlandieri Hook. Berlandier's yellow flax 1/0
LIBEB2 Linum berlandieri Hook. var. berlandieri Berlandier's yellow flax    
CABE10 Cathartolinum berlandieri (Hook.) Small   0/1
LIRIB Linum rigidum Pursh var. berlandieri (Hook.) Torr. & Gray   2/0
LIBI5 Linum bienne P. Mill. pale flax 1/0
LICA9 Linum catharticum L. fairy flax 1/0
CACA55 Cathartolinum catharticum (L.) Small   0/1
LIFLF2 Linum floridanum (Planch.) Trel. var. floridanum Florida yellow flax    
CAFL29 Cathartolinum floridanum (Planch.) Small   0/1
LIGR4 Linum grandiflorum Desf. flowering flax 2/0
LIKI2 Linum kingii S. Wats. King's flax 3/0
LILE3 Linum lewisii Pursh Lewis flax 6/1
LILEA Linum lewisii Pursh var. alpicola Jepson prairie flax 3/0
LILEL2 Linum lewisii Pursh var. lewisii prairie flax 3/0
ADLE Adenolinum lewisii (Pursh) A.& D. Löve   2/0
LIPEL3 Linum perenne L. ssp. lewisii (Pursh) Hultén   2/0
LIPEL2 Linum perenne L. var. lewisii (Pursh) Eat. & J. Wright   2/0
LIME2 Linum medium (Planch.) Britt. stiff yellow flax 1/0
LIMEM Linum medium (Planch.) Britt. var. medium stiff yellow flax    
CAME26 Cathartolinum medium (Planch.) Small   0/1
LIMET Linum medium (Planch.) Britt. var. texanum (Planch.) Fern. stiff yellow flax 2/0
LINA2 Linum narbonense L. flax 2/0
LINE Linum neomexicanum Greene New Mexico yellow flax 1/0
LIPE2 Linum perenne L. blue flax 2/0
LIPU4 Linum puberulum (Engelm.) Heller plains flax    
MEPU9 Mesynium puberulum (Engelm.) W.A. Weber   2/0
LIRI Linum rigidum Pursh stiffstem flax 1/0
LIRIR Linum rigidum Pursh var. rigidum stiffstem flax    
CARI10 Cathartolinum rigidum (Pursh) Small   0/1
LIRU2 Linum rupestre (Gray) Engelm. ex Gray rock flax 1/0
LIST Linum striatum Walt. ridged yellow flax 2/1
CAST31 Cathartolinum striatum (Walt.) Small   0/1
LISU4 Linum sulcatum Riddell grooved flax 1/0
LISUS Linum sulcatum Riddell var. sulcatum grooved flax    
CASU28 Cathartolinum sulcatum (Riddell) Small   0/1
LIUS Linum usitatissimum L. common flax 2/1
LIVE2 Linum vernale Woot. Chihuahuan flax 2/0
LIVI Linum virginianum L. woodland flax 2/0
CAVI15 Cathartolinum virginianum (L.) Reichenb.   0/1
LILI3 Liparis liliifolia (L.) L.C. Rich. ex Ker-Gawl. brown widelip orchid 5/1
LILO Liparis loeselii (L.) L.C. Rich. yellow widelip orchid 5/1
LIAR6 Lipocarpha aristulata (Coville) G. Tucker awned halfchaff sedge    
HEAR7 Hemicarpha aristulata (Coville) Smyth   0/1
LIMA4 Lipocarpha maculata (Michx.) Torr. American halfchaff sedge 0/1
LIMI12 Lipocarpha micrantha (Vahl) G. Tucker smallflower halfchaff sedge 0/1
HEMI5 Hemicarpha micrantha (Vahl) Pax   1/1
LIQUI Liquidambar L. sweetgum 2/2
LIST2 Liquidambar styraciflua L. sweetgum 15/1
LIRIO Liriodendron L. tuliptree 0/2
LICH6 Liriodendron chinense (Hemsl.) Sarg. Chinese tuliptree 3/0
LITU Liriodendron tulipifera L. tuliptree 23/2
LIMU6 Liriope muscari (Dcne.) Bailey big blue lilyturf 2/0
LISTE Listera R. Br. ex Ait. f. twayblade 1/0
LIAU2 Listera auriculata Wieg. auricled twayblade    
OPAU5 Ophrys auriculata (Wieg.) House   0/1
LIAU3 Listera australis Lindl. southern twayblade 3/0
OPAU6 Ophrys australis (Lindl.) House   0/1
LICA10 Listera caurina Piper northwestern twayblade 3/0
LICO5 Listera convallarioides (Sw.) Nutt. ex Ell. broadlipped twayblade 1/1
OPCO8 Ophrys convallarioides (Sw.) W. Wight   0/1
LICO6 Listera cordata (L.) R. Br. heartleaf twayblade 1/0
LICOC2 Listera cordata (L.) R. Br. ex Ait. f. var. cordata heartleaf twayblade    
OPCO9 Ophrys cordata L.   0/1
LISM Listera smallii Wieg. kidneyleaf twayblade    
OPSM Ophrys smallii (Wieg.) House   0/1
LITHA Lithachne Beauv. diente de perro 3/0
LIPA7 Lithachne pauciflora (Sw.) Beauv. ex Poir. diente de perro 1/0
LITHO Lithocarpus Blume tanoak 0/1
LIDE3 Lithocarpus densiflorus (Hook. & Arn.) Rehd. tanoak 10/1
LIDED2 Lithocarpus densiflorus (Hook. & Arn.) Rehd. var. densiflorus tanoak 5/0
LITHO2 Lithophragma (Nutt.) Torr. & A. Gray woodland-star 1/0
LIAF Lithophragma affine Gray San Francisco woodland-star 3/0
LIBO5 Lithophragma bolanderi Gray Bolander's woodland-star 2/0
LIGL2 Lithophragma glabrum Nutt. bulbous woodland-star 10/0
LIPA5 Lithophragma parviflorum (Hook.) Nutt. ex Torr. & Gray smallflower woodland-star 6/0
LIPAP3 Lithophragma parviflorum (Hook.) Nutt. ex Torr. & Gray var. parviflorum smallflower woodland-star 1/0
LITE4 Lithophragma tenellum Nutt. slender woodland-star 2/0
LITHO3 Lithospermum L. stoneseed 1/0
LICA11 Lithospermum californicum Gray California stoneseed 2/0
LICA12 Lithospermum canescens (Michx.) Lehm. hoary puccoon 7/1
LICA13 Lithospermum caroliniense (Walt. ex J.F. Gmel.) MacM. Carolina puccoon 7/1
LICAC9 Lithospermum caroliniense (Walt. ex J.F. Gmel.) MacM. var. croceum (Fern.) Cronq. Carolina puccoon 1/0
LIIN2 Lithospermum incisum Lehm. narrowleaf stoneseed 13/0
LILI8 Lithospermum linearifolium Goldie   0/1
LILA2 Lithospermum latifolium Michx. American stoneseed 1/1
LIMU3 Lithospermum multiflorum Torr. ex Gray manyflowered stoneseed 4/0
LIOF Lithospermum officinale L. European stoneseed 1/1
LIRU4 Lithospermum ruderale Dougl. ex Lehm. western stoneseed 9/0
LIPI6 Lithospermum pilosum Nutt.   0/1
LIAE Litsea aestivalis (L.) Fern. pondspice    
GLGE Glabraria geniculata (Marsh.) Britt.   0/1
LIUN Littorella uniflora (L.) Aschers. American shoreweed 0/1
LICH3 Livistona chinensis (Jacq.) R. Br. ex Mart. fountain palm 2/0
LLSE Lloydia serotina (L.) Reichenb. common alplily 4/0
LOBEL Lobelia L. lobelia 5/0
LOAM4 Lobelia amoena Michx. southern lobelia 0/1
LOAP Lobelia appendiculata A. DC. pale lobelia 1/0
LOAPG Lobelia appendiculata A. DC. var. gattingeri (Gray) McVaugh Gattinger's lobelia 1/0
LOBE3 Lobelia berlandieri A. DC. Berlandier's lobelia 1/0
LOBO Lobelia boykinii Torr. & Gray ex A. DC. Boykin's lobelia 2/0
LOBR3 Lobelia brevifolia Nutt. ex A. DC. shortleaf lobelia 1/0
LOCA Lobelia canbyi Gray Canby's lobelia 1/1
LOCA2 Lobelia cardinalis L. cardinalflower 12/2
LODO Lobelia dortmanna L. Dortmann's cardinalflower 0/1
LOEL Lobelia elongata Small longleaf lobelia 0/1
LOER Lobelia erinus L. edging lobelia 3/0
LOFL2 Lobelia flaccidifolia Small foldear lobelia 1/0
LOGL Lobelia glandulosa Walt. glade lobelia 1/1
LOIN Lobelia inflata L. Indian-tobacco 2/1
LOKA Lobelia kalmii L. Ontario lobelia 0/1
LOLA Lobelia laxiflora Kunth Sierra Madre lobelia 2/0
LONU Lobelia nuttallii J.A. Schultes Nuttall's lobelia 1/1
LOPA3 Lobelia paludosa Nutt. white lobelia 3/1
LOPO Lobelia portoricensis (Vatke) Urban tibey tupa 1/0
LOPU Lobelia puberula Michx. downy lobelia 10/2
LOSI Lobelia siphilitica L. great blue lobelia 8/2
LOSP Lobelia spicata Lam. palespike lobelia 4/1
LOSPL Lobelia spicata Lam. var. leptostachys (A. DC.) Mackenzie & Bush palespike lobelia    
LOLE3 Lobelia leptostachys A. DC.   0/1
LOBIV Lobivia Britton & Rose lobivia 1/0
LOCA18 Lobivia caespitosa (J.A. Purpus) Britton & Rose 1/0
LOCO20 Lobivia corbula (Herrera) Britton & Rose 1/0
LOFA2 Lobivia famatinensis (Speg.) Britton & Rose 1/0
LOLA10 Lobivia lateritia (Guerke) Britton & Rose 1/0
LOMA Lobularia maritima (L.) Desv. sweet alyssum 1/0
KOMA2 Koniga maritima (L.) R. Br.   0/1
LOMA8 Lodoicea maldivica (J. F. Gmelin) Pers. double coconut 3/0
LOSQS Loeflingia squarrosa Nutt. ssp. squarrosa spreading pygmyleaf    
LOTE Loeflingia texana Hook.   0/1
LOMA10 Loeseliastrum matthewsii (Gray) Timbrook desert calico 8/0
LAMA5 Langloisia matthewsii (Gray) Greene   2/0
LOSC6 Loeseliastrum schottii (Torr.) Timbrook Schott's calico 6/0
LOBR7 Loeskeobryum brevirostre (Brid.) Fleisch. in Broth. loeskeobryum moss    
HYBR9 Hylocomium brevirostre (Brid.) Schimp. in B.S.G.   4/0
LOAR12 Logfia arizonica (Gray) Holub Arizona cottonrose    
FIAR Filago arizonica Gray   1/0
LOPR Loiseleuria procumbens (L.) Desv. alpine azalea 4/0
CHPR8 Chamaecistus procumbens (L.) Kuntze   0/1
LOLIU Lolium L. ryegrass 1/0
LOPE Lolium perenne L. perennial ryegrass 3/2
LOPEM2 Lolium perenne L. ssp. multiflorum (Lam.) Husnot Italian ryegrass 1/0
LOMU Lolium multiflorum Lam.   1/2
LOPE2 Lolium persicum Boiss. & Hohen. ex Boiss. Persian ryegrass 1/0
LORI Lolium rigidum Gaudin Wimmera ryegrass 3/0
LOLO2 Lolium loliaceum (Bory & Chaubard) Hand.-Maz.   1/0
LOST Lolium strictum auct. non J. Presl   1/0
LOSU Lolium subulatum Vis.   2/1
LOTE2 Lolium temulentum L. Darnel ryegrass 1/2
LOTET Lolium temulentum L. ssp. temulentum Darnel ryegrass    
LOTEL Lolium temulentum L. var. leptochaeton A. Braun   2/0
LOMAT Lomatium Raf. desertparsley 3/0
LOAU5 Lomatium austiniae (Coult. & Rose) Coult. & Rose Austin desertparsley 2/0
LOBIL Lomatium bicolor (S. Wats.) Coult. & Rose var. leptocarpum (Torr. & Gray) Schlessman Wasatch desertparsley 4/0
LOCA3 Lomatium californicum (Nutt.) Mathias & Constance California lomatium 1/0
LOCA4 Lomatium canbyi (Coult. & Rose) Coult. & Rose Canby's biscuitroot 2/0
LOCA5 Lomatium caruifolium (Hook. & Arn.) Coult. & Rose alkali desertparsley 1/0
LOCO3 Lomatium congdonii Coult. & Rose Mariposa desertparsley 4/0
LODA Lomatium dasycarpum (Torr. & Gray) Coult. & Rose woollyfruit desertparsley 3/0
LODI Lomatium dissectum (Nutt.) Mathias & Constance fernleaf biscuitroot 7/0
LODIM Lomatium dissectum (Nutt.) Mathias & Constance var. multifidum (Nutt.) Mathias & Constance carrotleaf biscuitroot    
LEMU5 Leptotaenia multifida Nutt.   1/0
LODO2 Lomatium donnellii (Coult. & Rose) Coult. & Rose Donnell's biscuitroot 8/0
LOPL Lomatium plummerae (Coult. & Rose) Coult. & Rose   2/0
LOFOD Lomatium foeniculaceum (Nutt.) Coult. & Rose ssp. daucifolium (Torr. & Gray) Theobald desert biscuitroot    
CODA4 Cogswellia daucifolia (Torr. & Gray) M.E. Jones   0/1
LOFOF2 Lomatium foeniculaceum (Nutt.) Coult. & Rose ssp. foeniculaceum desert biscuitroot    
COFO5 Cogswellia foeniculacea (Nutt.) Coult. & Rose   0/1
LOFOM Lomatium foeniculaceum (Nutt.) Coult. & Rose ssp. macdougalii (Coult. & Rose) Theobald Macdougal's biscuitroot    
LOMA9 Lomatium macdougalii Coult. & Rose   1/0
LOGR Lomatium grayi (Coult. & Rose) Coult. & Rose Gray's biscuitroot 5/0
LOMA3 Lomatium macrocarpum (Nutt. ex Torr. & Gray) Coult. & Rose bigseed biscuitroot 2/0
LOMA5 Lomatium martindalei (J.M. Coult. & Rose) J.M. Coult. & Rose cascade desertparsley 2/0
LOMO Lomatium mohavense (Coult. & Rose) Coult. & Rose Mojave desertparsley 2/0
LONE Lomatium nevadense (S. Wats.) Coult. & Rose Nevada biscuitroot 4/0
LONEN Lomatium nevadense (S. Wats.) Coult. & Rose var. nevadense Nevada biscuitroot 2/0
LONU2 Lomatium nudicaule (Pursh) Coult. & Rose barestem biscuitroot 3/0
LONU3 Lomatium nuttallii (Gray) J.F. Macbr. Nuttall's biscuitroot    
CYNU5 Cynomarathrum nuttallii (Gray) Coult. & Rose   0/1
LOOR Lomatium orientale Coult. & Rose Northern Idaho biscuitroot    
COOR8 Cogswellia orientalis (Coult. & Rose) M.E. Jones   0/1
LOPA Lomatium parryi (S. Wats.) J.F. Macbr. Utah desertparsley 4/0
LOPA2 Lomatium parvifolium (Hook. & Arn.) Jepson coastal biscuitroot 1/0
LOTR2 Lomatium triternatum (Pursh) Coult. & Rose nineleaf biscuitroot 2/0
LOTRM Lomatium triternatum (Pursh) Coult. & Rose var. macrocarpum (Coult. & Rose) Mathias nineleaf biscuitroot 2/0
LOTRT Lomatium triternatum (Pursh) Coult. & Rose var. triternatum nineleaf biscuitroot 1/0
LOUT Lomatium utriculatum (Nutt. ex Torr. & Gray) Coult. & Rose common lomatium 3/0
LORO Lomatogonium rotatum (L.) Fries ex Fern. marsh felwort 1/1
PLRO3 Pleurogyne rotata (L.) Griseb.   0/1
LOHE7 Lonchocarpus heptaphyllus (Poir.) DC. broadleaf lancepod 1/0
LONIC Lonicera L. honeysuckle 6/1
LOAL Lonicera albiflora Torr. & Gray western white honeysuckle 4/0
LOCA6 Lonicera caerulea L. sweetberry honeysuckle 1/1
LOCA7 Lonicera canadensis Bartr. ex Marsh. American fly honeysuckle 1/1
LOCA8 Lonicera caprifolium L. Italian woodbine 0/1
LOCI3 Lonicera ciliosa (Pursh) Poir. ex DC. orange honeysuckle 4/0
LOCO5 Lonicera conjugialis Kellogg purpleflower honeysuckle 1/0
LODI2 Lonicera dioica L. limber honeysuckle 2/1
LOGL6 Lonicera glaucescens (Rydb.) Rydb.   0/1
LOET Lonicera etrusca Santi Etruscan honeysuckle 1/0
LOFL Lonicera flava Sims yellow honeysuckle 1/1
LOFR Lonicera fragrantissima Lindl. & Paxton sweet breath of spring 1/0
LOHI Lonicera hirsuta Eat. hairy honeysuckle 0/1
LOHI2 Lonicera hispidula (Lindl.) Dougl. ex Torr. & Gray pink honeysuckle 3/0
LOIN4 Lonicera interrupta Benth. chaparral honeysuckle 1/0
LOIN5 Lonicera involucrata Banks ex Spreng. twinberry honeysuckle 9/1
LOINI Lonicera involucrata (Richards.) Banks ex Spreng. var. involucrata twinberry honeysuckle    
DIIN5 Distegia involucrata (Banks ex Spreng.) Cockerell   1/0
LOJA Lonicera japonica Thunb. Japanese honeysuckle 19/2
LOMA6 Lonicera maackii (Rupr.) Herder Amur honeysuckle 4/0
LOMO2 Lonicera morrowii Gray Morrow's honeysuckle 2/0
LOOB Lonicera oblongifolia (Goldie) Hook. swamp fly honeysuckle 0/1
LOPE4 Lonicera periclymenum L. European honeysuckle 3/0
LORE5 Lonicera reticulata Raf. grape honeysuckle    
LOSU5 Lonicera sullivantii Gray   0/1
LOSE Lonicera sempervirens L. trumpet honeysuckle 11/2
LOSU2 Lonicera subspicata Hook. & Arn. southern honeysuckle 1/0
LOTA Lonicera tatarica L. Tatarian honeysuckle 2/2
LOVI Lonicera villosa (Michx.) J.A. Schultes mountain fly honeysuckle 0/1
LOXY Lonicera xylosteum L. dwarf honeysuckle 0/1
LOAU Lophiola aurea Ker-Gawl. goldencrest    
LOAM3 Lophiola americana (Pursh) Wood   5/1
LOBI4 Lophocolea bidentata (L.) Dumort. 2/0
LOHE9 Lophocolea heterophylla (Schrad.) Dumort. 4/0
LOMI7 Lophocolea minor Nees 2/0
LOPHO2 Lophophora Coult. lophophora 1/0
LOWI Lophophora williamsii (Lem. ex Salm-Dyck) Coult. peyote 2/0
LOCO9 Lophostemon confertus (R. Br.) P.G. Wilson & Waterhouse vinegartree 1/1
LOAS3 Lophozia ascendens (Warnst.) R. M. Schust. 4/0
LOBI5 Lophozia bicrenata (Schmidel ex Hoffm.) Dumort. 3/0
LOGR11 Lophozia grandiretis (Lindb. ex Kaal.) Schiffn. 1/0
LOIN11 Lophozia incisa (Schrad.) Dumort. 5/0
LOLO4 Lophozia longidens (Lindb.) Macoun 1/0
LOOB4 Lophozia obtusa (Lindb.) A. Evans 2/0
LOSU9 Lophozia sudetica (Nees ex Huebener) Grolle 2/0
LOVE4 Lophozia ventricosa (Dicks.) Dumort. 4/0
LOWE3 Lophozia wenzelii (Nees) Steph. 3/0
LORAN Loranthus L. mulberry mistletoe 1/0
LOBA5 Lotononis bainesii Baker lotononis 1/0
LOAB Lotus aboriginus Jepson rosy bird's-foot trefoil 1/0
LOAN2 Lotus angustissimus L. slender bird's-foot trefoil 1/0
LOARA2 Lotus argophyllus (Gray) Greene var. argenteus Dunkle silver bird's-foot trefoil 4/0
LOCO6 Lotus corniculatus L. bird's-foot trefoil 6/2
LOCR Lotus crassifolius (Benth.) Greene big deervetch 1/0
LODED Lotus dendroideus (Greene) Greene var. dendroideus island broom 2/0
LODEV Lotus dendroideus (Greene) Greene var. veatchii (Greene) Isely Veatch's island broom 2/0
LODE Lotus denticulatus (E. Drew) Greene riverbar bird's-foot trefoil 1/0
LOFO2 Lotus formosissimus Greene seaside bird's-foot trefoil 1/0
LOGL10 Lotus glaber P. Mill. narrow-leaf bird's-foot trefoil    
LOCOT Lotus corniculatus L. var. tenuifolius L.   1/0
LOTE4 Lotus tenuis Waldst. & Kit. ex Willd.   1/0
LOGR3 Lotus grandiflorus (Benth.) Greene chaparral bird's-foot trefoil 1/0
LOGR4 Lotus greenei Ottley ex Kearney & Peebles Greene's bird's-foot trefoil 4/0
LOHA2 Lotus hamatus Greene San Diego bird's-foot trefoil 1/0
LOHEO Lotus heermannii (Dur. & Hilg.) Greene var. orbicularis (Gray) Isely Heermann's bird's-foot trefoil 3/0
LOHU2 Lotus humistratus Greene foothill deervetch 1/0
LOJUB Lotus junceus (Benth.) Greene var. biolettii (Greene) Ottley Biolett's rush broom 3/0
LOMI Lotus micranthus Benth. desert deervetch 2/0
LONE4 Lotus nevadensis (S. Wats.) Greene Nevada bird's-foot trefoil 4/0
LONED Lotus nevadensis (S. Wats.) Greene var. douglasii (Greene) Ottley Douglas' bird's-foot trefoil 1/0
LODO6 Lotus douglasii Greene   1/0
LOOB2 Lotus oblongifolius (Benth.) Greene streambank bird's-foot trefoil 3/0
LOPE80 Lotus pedunculatus Cav. big trefoil 1/0
LOUL Lotus uliginosus Schkuhr   1/0
LOPI2 Lotus pinnatus Hook. meadow bird's-foot trefoil 2/0
LOPL2 Lotus plebeius (Brandeg.) Barneby New Mexico bird's-foot trefoil 3/0
LONE3 Lotus neomexicanus Greene   1/0
LORI3 Lotus rigidus (Benth.) Greene shrubby deervetch 2/0
LOSA Lotus salsuginosus Greene coastal bird's-foot trefoil 3/0
LOSC2 Lotus scoparius (Nutt.) Ottley common deerweed 4/0
LOST3 Lotus stipularis (Benth.) Greene balsam bird's-foot trefoil 1/0
LOST4 Lotus strigosus (Nutt.) Greene strigose bird's-foot trefoil 4/0
LOUNH Lotus unifoliolatus (Hook.) Benth. var. helleri (Britt.) Kartesz & Gandhi Heller's bird's-foot trefoil    
LOHE3 Lotus helleri Britt.   1/0
LOUNU Lotus unifoliolatus (Hook.) Benth. var. unifoliolatus American bird's-foot trefoil    
HOAM Hosackia americana (Nutt.) Piper   0/1
LOAM5 Lotus americanus (Nutt.) Bisch., non Vell.   1/0
LOSE4 Lotus sericeus Pursh, non Moench   1/0
LOWR2 Lotus wrangelianus Fisch. & C.A. Mey. Chilean bird's-foot trefoil 3/0
LOSU3 Lotus subpinnatus auct. non Lag. [misapplied]   1/0
LOWR Lotus wrightii (Gray) Greene Wright's deervetch 5/0
LUIN6 Luculia intermedia Hutchinson Yunnan luculia 3/0
LUAL Ludwigia alata Ell. winged primrose-willow 0/1
LUAL2 Ludwigia alternifolia L. seedbox 10/2
LUAR8 Ludwigia arcuata Walt. piedmont primrose-willow    
LUAR15 Ludwigiantha arcuata (Walt.) Small   0/1
LUBO Ludwigia bonariensis (M. Micheli) Hara Carolina primrose-willow 1/0
LUBR Ludwigia brevipes (B.H. Long ex Britt., A. Braun & Small) Eames Long Beach primrose-willow    
LUBR8 Ludwigiantha brevipes B.H. Long ex Britt., A. Braun & Small   0/1
LUDE4 Ludwigia decurrens Walt. wingleaf primrose-willow 4/1
JUDE5 Jussiaea decurrens (Walt.) DC.   2/1
LUGL Ludwigia glandulosa Walt. cylindricfruit primrose-willow 0/1
LUGRG2 Ludwigia grandiflora (M. Micheli) Greuter & Burdet ssp. grandiflora large-flower primrose-willow    
LUUR Ludwigia uruguayensis (Camb.) Hara   1/0
LUHI Ludwigia hirtella Raf. spindleroot 2/1
LULE4 Ludwigia leptocarpa (Nutt.) Hara anglestem primrose-willow 1/0
LULI Ludwigia linearis Walt. narrowleaf primrose-willow 3/2
LUMA4 Ludwigia maritima Harper seaside primrose-willow 1/0
LUOC Ludwigia octovalvis (Jacq.) Raven Mexican primrose-willow 2/0
LUPA Ludwigia palustris (L.) Ell. marsh seedbox 3/1
ISPA4 Isnardia palustris L., non Jussiaea palustris G.F.W. Mey.   0/1
LUPE5 Ludwigia peploides (Kunth) Raven floating primrose-willow 1/1
LUPEG2 Ludwigia peploides (Kunth) Raven ssp. glabrescens (Kuntze) Raven floating primrose-willow    
JUDI4 Jussiaea diffusa auct. non Forssk. [misapplied]   0/1
JURE6 Jussiaea repens L.   5/0
LUPE6 Ludwigia peruviana (L.) Hara Peruvian primrose-willow 1/0
LUPI Ludwigia pilosa Walt. hairy primrose-willow 2/0
LUPO Ludwigia polycarpa Short & Peter manyfruit primrose-willow 0/1
LURE2 Ludwigia repens J.R. Forst. creeping primrose-willow 1/1
LUSP Ludwigia sphaerocarpa Ell. globefruit primrose-willow 0/1
LUPE Luetkea pectinata (Pursh) Kuntze partridgefoot 8/0
LUAE Luffa aegyptiaca P. Mill. sponge gourd 4/0
LUHY Luina hypoleuca Benth. littleleaf silverback 1/0
LUAN Lunaria annua L. annual honesty 3/1
LURE Lunaria rediviva L. perennial honesty 0/1
LUNUL Lunularia Adans. 1/0
LUCR5 Lunularia cruciata (L.) Dumort. 1/0
LUPIN Lupinus L. lupine 8/1
LUAD Lupinus adsurgens E. Drew Drew's silky lupine 2/0
LUAF Lupinus affinis J.G. Agardh fleshy lupine 1/0
LUAL3 Lupinus albicaulis Dougl. ex Hook. sicklekeel lupine 3/0
LUAL4 Lupinus albifrons Benth. ex Lindl. silver lupine 6/0
LUALA2 Lupinus albifrons Benth. ex Lindl. var. albifrons silver lupine 4/0
LUALD Lupinus albifrons Benth. ex Lindl. var. douglasii (J.G. Agardh) C.P. Sm. Douglas' silver lupine 1/0
LUAL22 Lupinus albus L. white lupine 1/0
LUAN2 Lupinus andersonii S. Wats. Anderson's lupine 2/0
LUAN4 Lupinus angustifolius L. narrowleaf lupine 1/0
LUAR Lupinus arboreus Sims yellow bush lupine 6/0
LUAR6 Lupinus arbustus Dougl. ex Lindl. longspur lupine 7/0
LUARS Lupinus arbustus Dougl. ex Lindl. ssp. silvicola (Heller) D. Dunn longspur lupine 1/0
LUARS2 Lupinus arcticus S. Wats. ssp. subalpinus (Piper & B.L. Robins.) D. Dunn subalpine lupine 2/0
LUAR3 Lupinus argenteus Pursh silvery lupine 8/0
LUARA11 Lupinus argenteus Pursh ssp. argenteus var. argenteus silvery lupine    
LUDE10 Lupinus decumbens Torr.   0/1
LUARR Lupinus argenteus Pursh ssp. rubricaulis (Greene) Hess & D. Dunn silvery lupine 1/0
LUAR4 Lupinus arizonicus (S. Wats.) S. Wats. Arizona lupine 6/0
LUBE Lupinus benthamii Heller spider lupine 2/0
LUBI Lupinus bicolor Lindl. miniature lupine 1/0
LUBIB Lupinus bicolor Lindl. ssp. bicolor miniature lupine    
LUHI5 Lupinus hirsutulus Greene   2/0
LUBR2 Lupinus brevicaulis S. Wats. shortstem lupine 4/0
LUBR3 Lupinus breweri Gray Brewer's lupine 8/0
LUBRB2 Lupinus breweri Gray var. breweri Brewer's lupine 2/0
LUBRB Lupinus breweri Gray var. bryoides C.P. Sm. matted lupine 3/0
LUBU2 Lupinus burkei S. Wats. largeleaf lupine 1/0
LUBUB Lupinus burkei S. Wats. ssp. burkei largeleaf lupine 2/0
LUCA Lupinus caudatus Kellogg tailcup lupine 5/0
LUCAC3 Lupinus caudatus Kellogg ssp. caudatus tailcup lupine 8/0
LUCH Lupinus chamissonis Eschsch. chamisso bush lupine 4/0
LUCI Lupinus citrinus Kellogg orangeflower lupine 2/0
LUCO Lupinus concinnus J.G. Agardh bajada lupine 13/0
LUCO2 Lupinus confertus Kellogg crowded lupine 6/0
LUDE2 Lupinus densiflorus Benth. whitewhorl lupine 2/0
LUDI2 Lupinus diffusus Nutt. Oak Ridge lupine 3/0
LUDU Lupinus duranii Eastw. Mono Lake lupine 4/0
LUEL4 Lupinus elegans Kunth elegant lupine 1/0
LUEX Lupinus excubitus M.E. Jones grape soda lupine 3/0
LUFL Lupinus flavoculatus Heller yelloweyes 5/0
LUFOR Lupinus formosus Greene var. robustus C.P. Sm. summer lupine 1/0
LUGR2 Lupinus grayi (S. Wats.) S. Wats. Sierra lupine 2/0
LUHA Lupinus havardii S. Wats. Big Bend bluebonnet 4/0
LUHI2 Lupinus hillii Greene Hill's lupine 3/0
LUHI3 Lupinus hirsutissimus Benth. stinging annual lupine 3/0
LUHO Lupinus holmgrenianus C.P. Sm. Holmgren's lupine 3/0
LUHY7 Lupinus hybridus Lem. hybrid lupine 1/0
LUKI Lupinus kingii S. Wats. King's lupine 3/0
LULA Lupinus lapidicola Heller Heller's dwarf lupine 1/0
LULA4 Lupinus latifolius Lindl. ex J.G. Agardh broadleaf lupine 2/0
LULAL3 Lupinus latifolius Lindl. ex J.G. Agardh ssp. latifolius broadleaf lupine 1/0
LULAL2 Lupinus latifolius Lindl. ex J.G. Agardh ssp. longipes (Greene) Kenney & D. Dunn broadleaf lupine 3/0
LULE3 Lupinus leucophyllus Dougl. ex Lindl. velvet lupine 1/0
LULI2 Lupinus littoralis Dougl. seashore lupine 1/0
LULU2 Lupinus luteolus Kellogg pale yellow lupine 4/0
LULU80 Lupinus luteus L. European yellow lupine 1/0
LULY Lupinus lyallii Gray dwarf mountain lupine 1/0
LUMA2 Lupinus malacophyllus Greene jawleaf lupine 4/0
LUME Lupinus meionanthus Gray Lake Tahoe lupine 4/0
LUMU8 Lupinus mutabilis Sweet tarwi 1/0
LUNA3 Lupinus nanus Dougl. ex Benth. sky lupine 5/0
LUNE2 Lupinus neomexicanus Greene New Mexico lupine 3/0
LUNE Lupinus nevadensis Heller Nevada lupine 4/0
LUNO Lupinus nootkatensis Donn ex Sims Nootka lupine 2/0
LUOB Lupinus obtusilobus Heller bluntlobe lupine 2/0
LUON Lupinus onustus S. Wats. Plumas lupine 1/0
LUOR2 Lupinus ornatus Dougl. ex Lindl. ornate lupine 1/0
LUPE3 Lupinus perennis L. sundial lupine 4/1
LUPL Lupinus plattensis S. Wats. Nebraska lupine 1/1
LUPO3 Lupinus polycarpus Greene smallflower lupine 2/0
LUPO2 Lupinus polyphyllus Lindl. bigleaf lupine 7/0
LUPOG2 Lupinus polyphyllus Lindl. ssp. polyphyllus var. grandifolius (Lindl. ex J.G. Agardh) Torr. & Gray bigleaf lupine 1/0
LUPOP4 Lupinus polyphyllus Lindl. ssp. polyphyllus var. polyphyllus bigleaf lupine 1/0
LUPOS Lupinus polyphyllus Lindl. ssp. superbus (Heller) Munz bigleaf lupine 3/0
LUPU Lupinus pusillus Pursh rusty lupine 5/1
LUPUI2 Lupinus pusillus Pursh ssp. intermontanus (Heller) D. Dunn Intermountain lupine 2/0
LURI Lupinus rivularis Dougl. ex Lindl. riverbank lupine 1/0
LUSA2 Lupinus saxosus T.J. Howell rock lupine 3/0
LUSEL2 Lupinus sellulus Kellogg ssp. sellulus var. lobbii (Gray ex S. Wats.) Cox Donner Lake lupine 5/0
LUSES3 Lupinus sellulus Kellogg ssp. sellulus var. sellulus Donner Lake lupine 4/0
LUSE4 Lupinus sericeus Pursh silky lupine 3/0
LUSEF2 Lupinus sericeus Pursh ssp. sericeus var. flexuosus (Lindl. ex J.G. Agardh) C.P. Sm. silky lupine 1/0
LUSH Lupinus shockleyi S. Wats. purple desert lupine 6/0
LUSP2 Lupinus sparsiflorus Benth. Mojave lupine 5/0
LUSP3 Lupinus spectabilis Hoover shaggyhair lupine 1/0
LUST2 Lupinus stiversii Kellogg harlequin annual lupine 4/0
LUSU Lupinus subcarnosus Hook. Texas bluebonnet 4/0
LUSUS Lupinus subvexus C.P. Sm. var. subvexus valley lupine 4/0
LUMI9 Lupinus microcarpus Sims   1/0
LUSU3 Lupinus succulentus Dougl. ex K. Koch hollowleaf annual lupine 9/0
LUTE Lupinus texensis Hook. Texas lupine 4/0
LUVI Lupinus villosus Willd. lady lupine 2/0
LUBA2 Luziola bahiensis (Steud.) A.S. Hitchc. Brazilian watergrass 0/1
LUFL2 Luziola fluitans (Michx.) Terrell & H. Robins. southern watergrass    
HYCA2 Hydrochloa caroliniensis Beauv.   1/1
LUPE4 Luziola peruviana Juss. ex J.F. Gmel. Peruvian watergrass 2/1
LUAC Luzula acuminata Raf. hairy woodrush 1/0
LUACC2 Luzula acuminata Raf. ssp. carolinae (S. Wats.) Z. Kaplan Carolina woodrush    
JUCA11 Juncoides carolinae (S. Wats.) Kuntze   0/1
LUARA8 Luzula arctica Blytt ssp. arctica arctic woodrush    
JUAR5 Juncoides arcticum (Blytt) Coville   0/1
JUHY2 Juncoides hyperboreum (R. Br.) Sheldon p.p.   0/1
LUCA2 Luzula campestris (L.) DC. field woodrush    
JUCA12 Juncoides campestre (L.) Kuntze   0/1
LUDI Luzula divaricata S. Wats. forked woodrush 2/0
LUEC Luzula echinata (Small) F.J. Herm. hedgehog woodrush 1/0
LUGLH Luzula glabrata (Hoppe ex Rostk.) Desv. var. hitchcockii (Hämet-Ahti) Dorn Hitchcock's smooth woodrush 2/0
LULU3 Luzula luzuloides (Lam.) Dandy & Wilmott oakforest woodrush    
JUNE3 Juncoides nemorosum (Pollard) Kuntze   0/1
LUMU2 Luzula multiflora (Ehrh.) Lej. common woodrush 1/0
LUPA4 Luzula parviflora (Ehrh.) Desv. smallflowered woodrush 2/0
JUPA4 Juncoides parviflorum (Ehrh.) Coville   0/1
LUPI2 Luzula piperi (Coville) M.E. Jones Piper's woodrush 2/0
LUSP4 Luzula spicata (L.) DC. spiked woodrush 1/0
JUSP2 Juncoides spicatum (L.) Kuntze   0/1
LYCH3 Lychnis chalcedonica L. maltesecross 4/1
LYCO Lychnis coronaria (L.) Desr. rose campion 3/1
LYFL3 Lychnis flos-cuculi L. ragged robin 0/1
LYVI2 Lychnis viscaria L. clammy campion 1/0
LYAN Lycium andersonii Gray water jacket 3/0
LYBA4 Lycium barbarum L. matrimony vine 3/0
LYHA Lycium halimifolium P. Mill.   0/2
LYCA2 Lycium carolinianum Walt. Carolina desert-thorn 3/1
LYCO2 Lycium cooperi Gray peach thorn 2/0
LYPA Lycium pallidum Miers pale desert-thorn 7/0
LYPA2 Lycium parishii Gray Parish's desert-thorn 2/0
LYSH Lycium shockleyi Gray Shockley's desert-thorn 4/0
LYAL5 Lycopodiella alopecuroides (L.) Cranfill foxtail clubmoss    
LYAL2 Lycopodium alopecuroides L.   1/1
LYAP4 Lycopodiella appressa (Chapman) Cranfill southern bog clubmoss    
LYAD3 Lycopodium adpressum (Chapman) Lloyd & Underwood   0/1
LYCAC Lycopodiella caroliniana (L.) Pichi Sermolli var. caroliniana slender clubmoss    
LYCA3 Lycopodium carolinianum L.   0/1
LYCEC Lycopodiella cernua (L.) Pichi Sermolli var. cernua staghorn clubmoss 2/0
LYIN2 Lycopodiella inundata (L.) Holub inundated clubmoss 1/0
LYIN Lycopodium inundatum L.   0/1
LYCOP2 Lycopodium L. clubmoss 1/0
LYAL3 Lycopodium alpinum L. alpine clubmoss 2/1
LYAN2 Lycopodium annotinum L. stiff clubmoss 1/2
LYCL Lycopodium clavatum L. running clubmoss 1/1
LYCO3 Lycopodium complanatum L. groundcedar 0/1
LYDE Lycopodium dendroideum Michx. tree groundpine 2/0
LYDI3 Lycopodium digitatum Dill. ex A. Braun fan clubmoss 1/0
LYFL5 Lycopodium flabelliforme (Fern.) Blanch.   1/0
LYOB Lycopodium obscurum L. rare clubmoss 3/1
LYSA Lycopodium sabinifolium Willd. savinleaf groundpine 0/1
LYSI Lycopodium sitchense Rupr. Sitka clubmoss 1/1
LYTR Lycopodium tristachyum Pursh deeproot clubmoss 0/1
LYAM Lycopus americanus Muhl. ex W. Bart. American water horehound 4/2
LYAM2 Lycopus amplectens Raf. clasping water horehound    
LYSE4 Lycopus sessilifolius Gray   0/1
LYAS Lycopus asper Greene rough bugleweed 2/2
LYEU Lycopus europaeus L. gypsywort 0/1
LYRU Lycopus rubellus Moench taperleaf water horehound 2/2
LYUN Lycopus uniflorus Michx. northern bugleweed 2/2
LYVI4 Lycopus virginicus L. Virginia water horehound 3/2
LYSQ Lycoris squamigera Maxim. resurrection lily 1/0
LYPH Lycurus phleoides Kunth common wolfstail 4/1
LYSP3 Lygeum spartum Loefl. ex L. lygeum 3/0
LYGOD Lygodesmia D. Don skeletonplant 1/0
LYAR2 Lygodesmia arizonica S. Tomb Arizona skeletonplant 3/0
LYGR Lygodesmia grandiflora (Nutt.) Torr. & Gray largeflower skeletonplant 10/0
LYJU Lygodesmia juncea (Pursh) D. Don ex Hook. rush skeletonplant 0/1
LYTE Lygodesmia texana (Torr. & Gray) Greene Texas skeletonplant 3/0
LYJA Lygodium japonicum (Thunb. ex Murr.) Sw. Japanese climbing fern 2/1
LYPA3 Lygodium palmatum (Bernh.) Sw. American climbing fern 2/1
LYFE Lyonia ferruginea (Walt.) Nutt. rusty staggerbush 3/1
LYLI Lyonia ligustrina (L.) DC. maleberry 4/1
LYLIL Lyonia ligustrina (L.) DC. var. ligustrina maleberry    
XOLI Xolisma ligustrina (L.) Britt.   0/1
LYLU3 Lyonia lucida (Lam.) K. Koch fetterbush lyonia 12/1
NENI2 Neopieris nitida (Bartr. ex Marsh.) Britt.   0/1
LYMA2 Lyonia mariana (L.) D. Don piedmont staggerbush 2/1
NEMA4 Neopieris mariana (L.) Britt.   0/1
LYFL2 Lyonothamnus floribundus Gray Catalina ironwood 6/0
LYFLA Lyonothamnus floribundus Gray ssp. aspleniifolius (Greene) Raven Catalina ironwood 7/0
LYFLA3 Lyonothamnus floribundus Gray var. aspleniifolius (Greene) Brandeg.   3/0
LYFLF Lyonothamnus floribundus Gray ssp. floribundus Catalina ironwood 2/0
LYCO4 Lyrocarpa coulteri Hook. & Harvey ex Harvey Coulter's lyrepod 3/0
LYAM3 Lysichiton americanus Hultén & St. John American skunkcabbage 6/0
LYSA5 Lysiloma sabicu Benth. horseflesh mahogany 1/0
LYWA Lysiloma watsonii Rose littleleaf false tamarind 1/0
LYCI Lysimachia ciliata L. fringed loosestrife 8/1
STCI8 Steironema ciliatum (L.) Baudo   0/1
LYJA2 Lysimachia japonica Thunb. Japanese yellow loosestrife 2/0
LYLA Lysimachia lanceolata Walt. lanceleaf loosestrife 2/0
STLA13 Steironema lanceolatum (Walt.) Gray   0/1
LYNU Lysimachia nummularia L. creeping jenny 3/2
LYPU2 Lysimachia punctata L. large yellow loosestrife 0/1
LYQU Lysimachia quadriflora Sims fourflower yellow loosestrife 0/1
STQU Steironema quadriflorum (Sims) A.S. Hitchc.   0/1
LYQU2 Lysimachia quadrifolia L. whorled yellow loosestrife 4/2
LYRA3 Lysimachia radicans Hook. trailing yellow loosestrife    
STRA Steironema radicans (Hook.) Gray   0/1
LYTE2 Lysimachia terrestris (L.) B.S.P. earth loosestrife 2/1
LYTH2 Lysimachia thyrsiflora L. tufted loosestrife 2/1
NATH Naumburgia thyrsiflora (L.) Duby   0/1
LYTO2 Lysimachia tonsa (Wood) Wood ex Pax & R. Knuth southern yellow loosestrife    
STIN6 Steironema intermedium Kearney   0/1
LYVU Lysimachia vulgaris L. garden yellow loosestrife 0/1
LYAL4 Lythrum alatum Pursh winged lythrum 4/1
LYALL Lythrum alatum Pursh var. lanceolatum (Ell.) Torr. & Gray ex Rothrock winged lythrum 1/0
LYCA4 Lythrum californicum Torr. & Gray California loosestrife 3/0
LYHY3 Lythrum hyssopifolium L. hyssop loosestrife    
LYHY2 Lythrum hyssopifolia L. [orthographic variant]   0/1
LYLI2 Lythrum lineare L. wand lythrum 2/2
LYSA2 Lythrum salicaria L. purple loosestrife 8/2
LYVI3 Lythrum virgatum L. European wand loosestrife 1/0
MAAM9 Maackia amurensis Rupr. & Maxim. Amur maackia 1/0
MAIN8 Macadamia integrifolia Maiden & Betche macadamia nut 2/0
MATA3 Macaranga tanarius (L.) Muell.-Arg. parasol leaf tree 1/0
MACA Macbridea caroliniana (Walt.) Blake Carolina birds-in-a-nest 1/0
MAUN3 Macfadyena unguis-cati (L.) A.H. Gentry catclawvine 7/0
MACHA Machaeranthera Nees tansyaster 2/0
MAAS2 Machaeranthera asteroides (Torr.) Greene fall tansyaster 2/0
MABI Machaeranthera bigelovii (Gray) Greene Bigelow's tansyaster 3/0
MABL2 Machaeranthera blephariphylla (Gray) Shinners Texas tansyaster 1/0
ASGY2 Aster gymnocephalus auct. non (DC.) Gray [misapplied]   1/0
MACA2 Machaeranthera canescens (Pursh) Gray hoary tansyaster 5/0
MACAL Machaeranthera canescens (Pursh) Gray ssp. canescens var. leucanthemifolia (Greene) Welsh whiteflower tansyaster 1/0
MACAS2 Machaeranthera canescens (Pursh) Gray ssp. canescens var. sessiliflora (Nutt.) B.L. Turner hoary tansyaster    
MASE2 Machaeranthera sessiliflora (Nutt.) Greene   0/1
MACAS3 Machaeranthera canescens (Pursh) Gray ssp. canescens var. shastensis (Gray) B.L. Turner Shasta tansyaster 2/0
MACAA2 Machaeranthera canescens (Pursh) Gray ssp. glabra (Gray) B.L. Turner var. aristata (Eastw.) B.L. Turner hoary tansyaster    
ASCI8 Aster cichoriaceus (Greene) Blake   1/0
MACAG2 Machaeranthera canescens (Pursh) Gray ssp. glabra (Gray) B.L. Turner var. glabra Gray hoary tansyaster    
MALI4 Machaeranthera linearis Greene   3/0
MAGR10 Machaeranthera gracilis (Nutt.) Shinners slender goldenweed    
HAGR11 Haplopappus gracilis (Nutt.) Gray   4/0
MAGR2 Machaeranthera grindelioides (Nutt.) Shinners rayless tansyaster 4/0
MAGRD Machaeranthera grindelioides (Nutt.) Shinners var. depressa (Maguire) Cronq. & Keck rayless tansyaster 4/0
MAGRG Machaeranthera grindelioides (Nutt.) Shinners var. grindelioides rayless tansyaster    
SIGR12 Sideranthus grindelioides (Nutt.) Britt.   0/1
MAPI Machaeranthera pinnatifida (Hook.) Shinners lacy tansyaster 6/0
MAPIP4 Machaeranthera pinnatifida (Hook.) Shinners ssp. pinnatifida var. pinnatifida lacy tansyaster    
HASPA Haplopappus spinulosus (Pursh) DC. ssp. australis (Greene) Hall   1/0
MAAU4 Machaeranthera australis (Greene) Shinners   1/0
SISP4 Sideranthus spinulosus (Pursh) Sweet ex Rydb.   0/1
MATA2 Machaeranthera tanacetifolia (Kunth) Nees tanseyleaf tansyaster 3/1
MACO10 Macleaya cordata (Willd.) R. Br. plume poppy 1/0
MAPO Maclura pomifera (Raf.) Schneid. osage orange 12/2
TOPO2 Toxylon pomiferum Raf. ex Sarg.   0/1
MAVI Macromeria viridiflora DC. giant-trumpets 2/0
MAAT80 Macroptilium atropurpureum (Moc. & Sessé ex DC.) Urban purple bushbean 2/0
MAGI2 Macroptilium gibbosifolium (Ortega) A. Delgado variableleaf bushbean 1/0
MAHE6 Macroptilium heterophyllum (Willd.) Maréchal & Baudet   1/0
MALA9 Macroptilium lathyroides (L.) Urban wild bushbean 3/0
MALAM Macrosiphonia lanuginosa (Mart. & Gal.) Hemsl. var. macrosiphon (Torr.) Henrickson, comb. nov. ined. plateau rocktrumpet    
MAMA14 Macrosiphonia macrosiphon (Torr.) Heller   1/0
MAAX2 Macrotyloma axillare (E. Meyer) Verdc. perennial horsegram 1/0
MAUN4 Macrotyloma uniflorum (Lam.) Verdc. horsegram 1/0
MACRO8 Macrozamia Miq. macrozamia 1/0
MACO33 Macrozamia communis L.A.S. Johnson burrawong 1/0
MAEL Madia elegans D. Don ex Lindl. common madia 1/0
MAEX Madia exigua (Sm.) Gray small tarweed 2/0
MAGL2 Madia glomerata Hook. mountain tarweed 1/0
MAMA Madia madioides (Nutt.) Greene woodland madia 2/0
MASA Madia sativa Molina coast tarweed 1/0
MAGNO Magnolia L. magnolia 2/1
MAAC Magnolia acuminata (L.) L. cucumber-tree 6/1
MAAS Magnolia ashei Weatherby Ashe's magnolia 3/0
MADE6 Magnolia dealbata Zucc. cloudforest magnolia 2/0
MADE7 Magnolia denudata Desr. lilytree 5/0
MAFR Magnolia fraseri Walt. mountain magnolia 1/2
MAGR4 Magnolia grandiflora L. southern magnolia 14/1
MAMA2 Magnolia macrophylla Michx. bigleaf magnolia 6/1
MAPO2 Magnolia portoricensis Bello Puerto Rico magnolia 1/0
MASO9 Magnolia ×soulangiana Soul.-Bod. [denudata × liliifolia] Chinese magnolia 2/0
MASP Magnolia splendens Urban laurel magnolia 1/0
MAST6 Magnolia stellata (Sieb. & Zucc.) Maxim. star magnolia 2/0
MATR Magnolia tripetala (L.) L. umbrella-tree 6/1
MAVI2 Magnolia virginiana L. sweetbay 12/2
MAHON Mahonia Nutt. barberry 3/0
MAAQ2 Mahonia aquifolium (Pursh) Nutt. hollyleaved barberry 6/0
BEAQ Berberis aquifolium Pursh   1/1
MAPI3 Mahonia piperiana Abrams   1/0
ODAQ Odostemon aquifolium (Pursh) Rydb.   0/1
MABE2 Mahonia bealei (Fortune) Carrière Beale's barberry 1/0
MADI11 Mahonia dictyota (Jepson) Fedde shining netvein barberry 1/0
BEDI Berberis dictyota Jepson   1/0
MAFR3 Mahonia fremontii (Torr.) Fedde Fremont's mahonia 7/0
BEFR Berberis fremontii Torr.   5/0
MAHA4 Mahonia haematocarpa (Woot.) Fedde red barberry    
BEHA Berberis haematocarpa Woot.   1/0
MALO8 Mahonia lomariifolia Takeda Chinese hollygrape 4/0
MANE2 Mahonia nervosa (Pursh) Nutt. Cascade barberry    
BENE2 Berberis nervosa Pursh   5/0
MANE3 Mahonia nevinii (Gray) Fedde Nevin's barberry 6/0
BENE Berberis nevinii Gray   1/0
MAPI2 Mahonia pinnata (Lag.) Fedde wavyleaf barberry 2/0
MAPII Mahonia pinnata (Lag.) Fedde ssp. insularis (Munz) J.B. Roof island barberry 1/0
BEPII Berberis pinnata Lag. ssp. insularis Munz   5/0
MARE11 Mahonia repens (Lindl.) G. Don creeping barberry 8/0
BERE Berberis repens Lindl.   7/0
MAAM5 Mahonia amplectens Eastw.   3/0
MASI13 Mahonia siamensis Takeda Siam hollygrape 4/0
MATR3 Mahonia trifoliolata (Moric.) Fedde algerita 1/0
BETR5 Berberis trifoliolata Moric.   2/0
MAIAN Maianthemum G.H. Weber ex Wiggers mayflower 1/0
MACA4 Maianthemum canadense Desf. Canada mayflower 5/0
UNCA Unifolium canadense (Desf.) Greene   0/1
MADI Maianthemum dilatatum (Wood) A. Nels. & J.F. Macbr. false lily of the valley 5/0
MARA7 Maianthemum racemosum (L.) Link feathery false lily of the valley 4/1
MARAA Maianthemum racemosum (L.) Link ssp. amplexicaule (Nutt.) LaFrankie feathery false lily of the valley    
MAAM6 Maianthemum amplexicaule (Nutt.) W.A. Weber   1/0
SMRAA Smilacina racemosa (L.) Desf. var. amplexicaulis (Nutt.) S. Wats.   1/0
MARAR Maianthemum racemosum (L.) Link ssp. racemosum feathery false lily of the valley 4/0
SMRA Smilacina racemosa (L.) Desf.   14/0
VARA3 Vagnera racemosa (L.) Morong   0/1
MAST4 Maianthemum stellatum (L.) Link starry false lily of the valley 7/0
SMST Smilacina stellata (L.) Desf.   4/0
SMSTS Smilacina stellata (L.) Desf. var. sessilifolia (Nutt. ex Baker) G. Henderson   1/0
VAST4 Vagnera stellata (L.) Morong   0/1
MATR4 Maianthemum trifolium (L.) Sloboda threeleaf false lily of the valley    
VATR2 Vagnera trifolia (L.) Morong   0/1
MALAC Malachra L. leafbract 1/0
MAAL4 Malachra alceifolia Jacq. yellow leafbract 1/0
MACL Malacothamnus clementinus (Munz & Johnston) Kearney San Clemente Island bushmallow 3/0
MADE Malacothamnus densiflorus (S. Wats.) Greene yellowstem bushmallow 2/0
MAFA Malacothamnus fasciculatus (Nutt. ex Torr. & Gray) Greene Mendocino bushmallow 2/0
MAFAC Malacothamnus fasciculatus (Nutt. ex Torr. & Gray) Greene ssp. catalinensis (Eastw.) Thorne   2/0
MAFAN2 Malacothamnus fasciculatus (Nutt. ex Torr. & Gray) Greene var. nuttallii (Abrams) Kearney   1/0
MAHA2 Malacothamnus hallii (Eastw.) Kearney   1/0
MALAC3 Malacothrix DC. desertdandelion 1/0
MACA6 Malacothrix californica DC. California desertdandelion 1/0
MAFE Malacothrix fendleri Gray Fendler's desertdandelion 1/0
MAFL Malacothrix floccifera (DC.) Blake woolly desertdandelion 2/0
MAGL3 Malacothrix glabrata (Gray ex D.C. Eat.) Gray smooth desertdandelion 9/0
MAIN Malacothrix incana (Nutt.) Torr. & Gray dunedelion 2/0
MASA2 Malacothrix saxatilis (Nutt.) Torr. & Gray cliff desertdandelion 3/0
MASAI Malacothrix saxatilis (Nutt.) Torr. & Gray var. implicata (Eastw.) Hall cliff desertdandelion 2/0
MASO Malacothrix sonchoides (Nutt.) Torr. & Gray sowthistle desertdandelion 8/1
MABR5 Malaxis brachypoda (Gray) Fern. white adder's-mouth orchid 1/0
MAMOB Malaxis monophyllos (L.) Sw. var. brachypoda (Gray) F. Morris & Eames   0/1
MASO8 Malaxis soulei L.O. Williams Chiricahua adder's-mouth orchid 2/0
MAUN Malaxis unifolia Michx. green adder's-mouth orchid 1/1
MAAF Malcolmia africana (L.) Ait. f. African mustard 8/0
MALA6 Malosma laurina (Nutt.) Nutt. ex Abrams laurel sumac    
RHLA4 Rhus laurina Nutt.   1/0
MACO11 Malpighia coccigera L. Singapore holly 1/0
MALI2 Malpighia linearis Jacq. bastard cherry 1/0
MAWO Malpighia woodburyana Vivaldi Woodbury's stingingbush 2/0
MALUS Malus P. Mill. apple 6/1
MAAN3 Malus angustifolia (Ait.) Michx. southern crabapple 2/0
MABA Malus baccata (L.) Borkh. Siberian crabapple 5/1
MACO5 Malus coronaria (L.) P. Mill. sweet crabapple 2/2
MAGL11 Malus glaucescens Rehd.   0/1
MAFL80 Malus floribunda Sieb. ex Van Houtte Japanese flowering crabapple 1/0
MAFU Malus fusca (Raf.) Schneid. Oregon crabapple 3/0
MAIO Malus ioensis (Wood) Britt. prairie crabapple 1/1
MAPU Malus pumila P. Mill. paradise apple 6/0
MASY2 Malus sylvestris P. Mill. European crabapple 1/0
MAMA21 Malus malus (L.) Britt.   0/1
MATO6 Malus toringo (Sieb.) Sieb. ex de Vriese toringa crabapple    
MASI80 Malus sieboldii (Regel) Rehd.   1/0
MAZU2 Malus zumi (Matsumura) Rehd. toringa crabapple 1/0
MAAL Malva alcea L. vervain mallow 0/1
MAMO2 Malva moschata L. musk mallow 1/1
MANE Malva neglecta Wallr. common mallow 5/0
MARO Malva rotundifolia auct. non L. [misapplied]   2/0
MAPA5 Malva parviflora L. cheeseweed mallow 2/0
MAPU5 Malva pusilla Sm. low mallow    
MARO11 Malva rotundifolia L.   0/1
MASY Malva sylvestris L. high mallow 5/1
MAVE Malva verticillata L. cluster mallow 0/1
MACR Malva crispa (L.) L.   1/0
MAAM Malvastrum americanum (L.) Torr. Indian Valley false mallow 1/0
MASP7 Malvastrum spicatum auct. non (L.) Gray [misapplied]   1/0
MAHI Malvastrum hispidum (Pursh) Hochr. hispid false mallow 1/0
MAAN13 Malvastrum angustum Gray   1/1
MALVA3 Malvaviscus Fabr. wax mallow 2/0
MAAR14 Malvaviscus arboreus Dill. ex Cav. wax mallow 1/0
MAARD Malvaviscus arboreus Dill. ex Cav. var. drummondii (Torr. & Gray) Schery wax mallow 4/0
MADR Malvaviscus drummondii Torr. & Gray   2/0
MALE2 Malvella lepidota (Gray) Fryxell scurfymallow    
SILE6 Sida lepidota Gray   1/0
MALE3 Malvella leprosa (Ortega) Krapov. alkali mallow    
SIHE8 Sida hederacea (Dougl. ex Hook.) Torr. ex Gray   0/1
MASA3 Malvella sagittifolia (Gray) Fryxell arrowleaf mallow    
SISA8 Sida sagittifolia (Gray) Rydb.   2/0
MAAM2 Mammea americana L. mammee apple 1/0
MAMMI Mammillaria Haw. globe cactus 2/0
MADI3 Mammillaria dioica K. Brandeg. strawberry cactus 1/0
MAGR9 Mammillaria grahamii Engelm. Graham's nipple cactus 1/0
MAGRG4 Mammillaria grahamii Engelm. var. grahamii Engelm. [superfluous autonym]   1/0
MAMI2 Mammillaria microcarpa Engelm.   1/0
MAHE2 Mammillaria heyderi Muehlenpfordt little nipple cactus 4/0
MALA2 Mammillaria lasiacantha Engelm. lacespine nipple cactus 2/0
MAMA38 Mammillaria matudae Bravo 1/0
MANI3 Mammillaria nivosa Link ex N.E. Pfeiffer woolly nipple cactus 7/0
MAPA26 Mammillaria painteri Rose 1/0
MANFR Manfreda Salisb. tuberose 1/0
MAMA7 Manfreda maculosa (Hook.) Rose spice lily 1/0
MAVI5 Manfreda virginica (L.) Salisb. ex Rose false aloe 3/1
AGVI6 Agave virginica L.   4/0
MAIN3 Mangifera indica L. mango 5/0
MAES Manihot esculenta Crantz cassava 5/0
MAGL5 Manihot glaziovii Müll. Arg. ceara rubbertree 1/0
MAWA Manihot walkerae Croizat Walker's manihot 1/0
MAZA Manilkara zapota (L.) P. Royen sapodilla    
ACZA2 Achras zapota L.   3/0
MAFR10 Mannia fragrans (Balb.) Frye & L. Clark 2/0
MAFA3 Marah fabaceus (Naud.) Naud. ex Greene California manroot 4/0
MAFAA Marah fabaceus (Naud.) Naud. ex Greene var. agrestis (Greene) Stocking California manroot 3/0
MARE3 Marcgravia rectiflora Triana & Planch. bejuco de lira 3/0
MASI2 Marcgravia sintenisii Urban shingleplant 2/0
MAPA25 Marchantia paleacea Bertol. 5/0
MAPO16 Marchantia polymorpha L. 4/0
MANO Margaritaria nobilis L. f. bastard hogberry 1/0
MACA8 Marina calycosa (Gray) Barneby San Pedro false prairie-clover 1/0
MAPA7 Marina parryi (Torr. & Gray) Barneby Parry's false prairie-clover 1/0
DAPA5 Dalea parryi Torr. & Gray   1/0
MARKH Markhamia Seem. Ex Baill. markhamia 3/0
MALU4 Markhamia lutea (Benth.) K. Schum. siala 1/0
MAHI7 Markhamia hildebrantii (Baker) Sprague   1/0
MASI3 Marlierea sintenisii Kiaersk. beruquillo 1/0
MAVU Marrubium vulgare L. horehound 4/1
MACA7 Marshallia caespitosa Nutt. ex DC. puffballs 4/1
MAGR6 Marshallia graminifolia (Walt.) Small grassleaf Barbara's buttons 3/0
MAGR7 Marshallia grandiflora Beadle & F.E. Boynt. Monongahela Barbara's buttons 0/1
MAMO3 Marshallia mohrii Beadle & F.E. Boynt. Mohr's Barbara's buttons 2/0
MATR2 Marshallia trinervia (Walt.) Trel. broadleaf Barbara's buttons 0/1
MAAN14 Marsilea ancylopoda A. Braun tropical waterclover 1/0
MAPO4 Marsilea polycarpa Hook. & Grev. Guayanan waterclover 2/0
MAQU Marsilea quadrifolia L. European waterclover 0/1
MAVE2 Marsilea vestita Hook. & Grev. hairy waterclover 1/2
MAMU5 Marsilea mucronata A. Braun   1/0
MAAD Marsupella adusta (Nees) Spruce 1/0
MACO31 Marsupella commutata (Limpr.) Bernet 2/0
MAEM4 Marsupella emarginata (Ehrh.) Dumort. 3/0
MASP11 Marsupella sphacelata (Gieseke) Dumort. 3/0
MABA3 Matelea baldwyniana (Sweet) Woods. Baldwin's milkvine    
VIBA3 Vincetoxicum baldwynianum (Sweet) Britt.   0/1
MACA9 Matelea carolinensis (Jacq.) Woods. maroon Carolina milkvine 1/0
VICA9 Vincetoxicum carolinense (Jacq.) Britt.   0/1
VIHI4 Vincetoxicum hirsutum (Michx.) Britt.   0/1
MADE3 Matelea decipiens (Alexander) Woods. oldfield milkvine 4/0
MAGO Matelea gonocarpos (Walt.) Shinners angularfruit milkvine 4/0
VIGO Vincetoxicum gonocarpos Walt.   0/1
VISU4 Vincetoxicum suberosum auct. non (L.) Britt. [misapplied]   0/1
MAOB2 Matelea obliqua (Jacq.) Woods. climbing milkvine    
GOSH2 Gonolobus shortii Gray   1/0
VIOB2 Vincetoxicum obliquum (Jacq.) Britt.   0/1
VISH3 Vincetoxicum shortii (Gray) Britt.   0/1
MAQU2 Matelea quirosii (Standl.) Woodson arborescente rattan 2/0
MARE4 Matelea reticulata (Engelm. ex Gray) Woods. netted milkvine 1/0
MATR9 Matelea trianae (Dcne. ex Trin.) Spellman rattan 1/0
MADI6 Matricaria discoidea DC. disc mayweed    
MAMA11 Matricaria matricarioides auct. non (Less.) Porter [misapplied]   0/1
MARE6 Matricaria recutita L. German chamomile    
MACH2 Matricaria chamomilla L. 1755 & 1763, non 1753   0/1
MAST Matteuccia struthiopteris (L.) Todaro ostrich fern 1/2
MAIN4 Matthiola incana (L.) Ait. f. tenweeks stock 4/0
MALO3 Matthiola longipetala (Vent.) DC. night scented stock    
MABI3 Matthiola bicornis (Sibthorp & Sm.) DC.   1/0
MAAN9 Maurandella antirrhiniflora (Humb. & Bonpl. ex Willd.) Rothm. roving sailor 3/0
MAAN6 Maurandya antirrhiniflora Humb. & Bonpl. ex Willd.   3/0
MAFL2 Mayaca fluviatilis Aubl. stream bogmoss 2/0
MAAU2 Mayaca aubletii Michx.   0/1
MACY2 Maytenus cymosa Krug & Urban Caribbean mayten 2/0
MAEL3 Maytenus elongata (Urban) Britt. Puerto Rico mayten 1/0
MAPU7 Mazus pumilus (Burm. f.) Steenis Japanese mazus 2/0
MEAC Mecardonia acuminata (Walt.) Small axilflower 5/2
MELA7 Mecranium latifolium (Cogn.) Skean camasey almendre 1/0
MEVI Medeola virginiana L. Indian cucumber 3/1
MEDIC Medicago L. alfalfa 1/0
MEAR Medicago arabica (L.) Huds. spotted medick 1/1
MELA5 Medicago laciniata (L.) P. Mill. cutleaf medick 1/0
MELI5 Medicago littoralis Rhode ex Loisel. water medick 1/0
MELU Medicago lupulina L. black medick 7/2
MEMI Medicago minima (L.) L. burr medick 1/0
MEMO5 Medicago monspeliaca (L.) Trautv. hairy medick    
TRMO7 Trigonella monspeliaca L.   1/0
MEPO3 Medicago polymorpha L. burclover 3/0
MEAP3 Medicago apiculata auct. non Willd. [misapplied]   1/0
MEHI Medicago hispida Gaertn.   0/1
MEHIA Medicago hispida Gaertn. var. apiculata (Willd.) Urban   1/0
MEHIC Medicago hispida Gaertn. var. confinis (W.D.J. Koch) Burnat   1/0
MEPOB Medicago polymorpha L. var. brevispina (Benth.) Heyn   1/0
MEPOV Medicago polymorpha L. var. vulgaris (Benth.) Shinners   1/0
MEPR Medicago praecox DC. Mediterranean medick 1/0
MERI3 Medicago rigidula (L.) All. Tifton burclover 1/0
MERU3 Medicago rugosa Desr. wrinkled medick 1/0
MESA Medicago sativa L. alfalfa 3/1
MESAF Medicago sativa L. ssp. falcata (L.) Arcang. yellow alfalfa    
MEFA Medicago falcata L.   1/0
MESAS Medicago sativa L. ssp. sativa alfalfa 1/0
MESAV8 Medicago sativa L. ssp. varia (Martyn) Arcang.   1/0
MESC6 Medicago scutellata (L.) P. Mill. snail medick 1/0
METR10 Medicago truncatula Gaertner barrelclover 1/0
METR11 Medicago tribuloides Desr. ex Lam.   1/0
METU Medicago turbinata (L.) All. southern medick 1/0
MECO Meehania cordata (Nutt.) Britt. Meehan's mint 3/1
METR70 Meesia triquetra (Richt.) Ångstr. meesia moss 5/0
MEUL70 Meesia uliginosa Hedw. meesia moss 3/0
MEER6 Megaskepasma erythrochlamys Lindau Brazilian red-cloak 2/0
MEVE6 Megaspora verrucosa (Ach.) Hafellner & V. Wirth megaspora lichen 1/0
MEDI11 Melaleuca diosmifolia Andrews dotted melaleuca    
MEDI9 Melaleuca diosmatifolia Andrews [orthographic variant]   3/0
MEIN17 Melaleuca incana R.Br. gray honeymyrtle 2/0
MELA14 Melaleuca lateritia A. Dietr. robin redbreast bush 2/0
MELI7 Melaleuca linariifolia Sm. cajeput tree 3/0
MEQU Melaleuca quinquenervia (Cav.) S.F. Blake punktree    
MELE Melaleuca leucadendron auct. non (L.) L., orth. var.   2/0
MEST11 Melaleuca styphelioides Sm. prickly-leaf teatree 1/0
METH2 Melaleuca thymifolia Sm. thymeleaf melaleuca 2/0
MECI Melampodium cinereum DC. hoary blackfoot 1/0
MELE2 Melampodium leucanthum Torr. & Gray plains blackfoot 6/1
MELI2 Melampyrum lineare Desr. narrowleaf cowwheat 4/1
MELIL2 Melampyrum lineare Desr. var. latifolium Bart. narrowleaf cowwheat    
MELA6 Melampyrum latifolium (Bart.) Muhl. ex Britt.   0/1
MEASA Melanthera aspera (Jacq.) Steud. ex Small var. aspera yerba de cabra 1/0
MECA9 Melastoma candidum D. Don Asian melastome 1/0
MESA3 Melastoma sanguineum Sims red melastome 1/0
MELIA Melia L. melia 0/1
MEAZ Melia azedarach L. Chinaberrytree 4/1
MEAL Melica altissima L. Siberian melicgrass 2/0
MEAR3 Melica aristata Thurb. ex Boland. bearded melicgrass 0/1
MEBU Melica bulbosa Geyer ex Porter & Coult. oniongrass 3/1
MEIN Melica inflata (Boland.) Vasey   0/1
MECA2 Melica californica Scribn. California melicgrass 1/1
MEFR Melica frutescens Scribn. woody melicgrass 0/1
MEFU Melica fugax Boland. little oniongrass 0/1
MEGE Melica geyeri Munro ex Boland. Geyer's oniongrass 0/1
MEHA2 Melica harfordii Boland. Harford's oniongrass 0/1
MEIM Melica imperfecta Trin. smallflower melicgrass 0/1
MEMO Melica montezumae Piper Montezuma melicgrass 0/1
MEMU Melica mutica Walt. twoflower melicgrass 3/2
MENI Melica nitens (Scribn.) Nutt. ex Piper threeflower melicgrass 0/2
MEPO Melica porteri Scribn. Porter's melicgrass 1/2
MESM Melica smithii (Porter ex Gray) Vasey Smith's melicgrass 0/1
AVSM Avena smithii Porter ex Gray   0/1
MESP Melica spectabilis Scribn. purple oniongrass 0/1
MEST Melica stricta Boland. rock melicgrass 4/1
MESU Melica subulata (Griseb.) Scribn. Alaska oniongrass 0/1
METO Melica torreyana Scribn. Torrey's melicgrass 0/1
MEAL3 Melilotus altissimus Thuill. tall yellow sweetclover    
MEAL13 Melilotus altissima Thuill. [orthographic variant]   1/0
MEIN2 Melilotus indicus (L.) All. annual yellow sweetclover    
MEIN14 Melilotus indica (L.) All. [orthographic variant]   2/0
MEOF Melilotus officinalis (L.) Lam. yellow sweetclover 8/2
MEAL12 Melilotus alba Medikus [orthographic variant]   7/2
MEAL2 Melilotus albus Medik.   2/0
MESU12 Melilotus suaveolens Ledeb. sweetclover 1/0
MEMI2 Melinis minutiflora Beauv. molassesgrass 1/1
MERE9 Melinis repens (Willd.) Zizka rose Natal grass    
RHRE2 Rhynchelytrum repens (Willd.) C.E. Hubbard   1/0
RHRO2 Rhynchelytrum roseum (Nees) Stapf & C.E. Hubbard ex Bews   1/1
TRRE8 Tricholaena repens (Willd.) Hitchc.   1/0
TRRO7 Tricholaena rosea Nees   1/0
MEOF2 Melissa officinalis L. common balm 4/1
MELOC2 Melocactus Link & Otto melocactus 1/0
MEIN7 Melocactus intortus (P. Mill.) Urban Turk's cap 9/0
MECO4 Melochia corchorifolia L. chocolateweed 1/0
MEPE3 Melothria pendula L. Guadeloupe cucumber 2/1
MEPEP Melothria pendula L. var. pendula Guadeloupe cucumber 2/0
MECA3 Menispermum canadense L. common moonseed 2/2
MENOD Menodora Bonpl. menodora 0/1
MESC Menodora scabra Gray rough menodora 5/0
MESP2 Menodora spinescens Gray spiny menodora 9/0
MEAQ Mentha aquatica L. water mint 1/1
MECI2 Mentha citrata Ehrh.   0/1
MEPIC2 Mentha piperita L. ssp. citrata (Ehrh.) Briq.   0/1
MEAR4 Mentha arvensis L. wild mint 7/2
MECA7 Mentha canadensis L.   0/1
MEGE2 Mentha gentilis L.   0/1
MEGR2 Mentha ×gracilis Sole (pro sp.) [arvensis × spicata] gingermint    
MECA4 Mentha cardiaca (S.F. Gray) Gerarde ex Baker   0/1
MEPI Mentha ×piperita L. (pro sp.) [aquatica × spicata] peppermint 2/1
MECR6 Mentha crispa L.   0/1
MESP3 Mentha spicata L. spearmint 5/2
MELO8 Mentha longifolia auct. non (L.) Huds. [misapplied]   1/0
MESU5 Mentha suaveolens Ehrh. apple mint    
MERO Mentha rotundifolia auct. non (L.) Huds. [misapplied]   1/1
MEVI6 Mentha ×villosa Huds. (pro sp.) [spicata × suaveolens]    
MEAL4 Mentha alopecuroides Hull   0/1
MEAL6 Mentzelia albicaulis (Dougl. ex Hook.) Dougl. ex Torr. & Gray whitestem blazingstar 14/1
MEAS2 Mentzelia asperula Woot. & Standl. Organ Mountain blazingstar 2/0
MEDE2 Mentzelia decapetala (Pursh ex Sims) Urban & Gilg ex Gilg tenpetal blazingstar 2/0
NUDE Nuttallia decapetala (Pursh ex Sims) Greene   0/1
MEDI Mentzelia dispersa S. Wats. bushy blazingstar 4/0
MEHU Mentzelia humilis (Gray) J. Darl. gypsum blazingstar 1/0
MEIN5 Mentzelia involucrata S. Wats. whitebract blazingstar 3/0
MELA2 Mentzelia laevicaulis (Dougl. ex Hook.) Torr. & Gray smoothstem blazingstar 11/0
MELAL3 Mentzelia laevicaulis (Dougl. ex Hook.) Torr. & Gray var. laevicaulis smoothstem blazingstar 10/0
MELE3 Mentzelia leucophylla Brandeg. Ash Meadows blazingstar 7/0
MELI4 Mentzelia lindleyi Torr. & Gray Lindley's blazingstar 3/0
MEMI3 Mentzelia micrantha (Hook. & Arn.) Torr. & Gray San Luis blazingstar 2/0
MEMU3 Mentzelia multiflora (Nutt.) Gray Adonis blazingstar 8/0
MENI2 Mentzelia nitens Greene shining blazingstar 2/0
MENU Mentzelia nuda (Pursh) Torr. & Gray bractless blazingstar 1/0
MENUN Mentzelia nuda (Pursh) Torr. & Gray var. nuda bractless blazingstar    
NUNU Nuttallia nuda (Pursh) Greene   0/1
MENUS Mentzelia nuda (Pursh) Torr. & Gray var. stricta (Osterhout) Harrington bractless blazingstar    
NUST Nuttallia stricta (Osterhout) Greene   0/1
MEOB3 Mentzelia obscura H.J. Thompson & Roberts Pacific blazingstar 2/0
MEOL Mentzelia oligosperma Nutt. ex Sims chickenthief 2/1
MEOR3 Mentzelia oreophila J. Darl. Argus blazingstar 2/0
MEPA5 Mentzelia packardiae Glad. Packard's blazingstar 1/0
MEPU3 Mentzelia pumila Nutt. ex Torr. & Gray dwarf mentzelia 2/0
METI Mentzelia tiehmii N.H. Holmgren & P.K. Holmgren Tiehm's blazing star 1/0
METO2 Mentzelia torreyi Gray Torrey's blazingstar 5/0
METR3 Menyanthes trifoliata L. buckbean 10/2
MEFE Menziesia ferruginea Sm. rusty menziesia 6/0
MEGL2 Menziesia glabella Gray   0/1
MEPI2 Menziesia pilosa (Michx. ex Lam.) Juss. ex Pers. minniebush 1/1
MEAN Mercurialis annua L. annual mercury 1/1
MEAE Merremia aegyptia (L.) Urban hairy woodrose 2/0
MECI5 Merremia cissoides (Lam.) Hallier f. roadside woodrose 1/0
MEDI2 Merremia dissecta (Jacq.) Hallier f. noyau vine 4/0
MEQU2 Merremia quinquefolia (L.) Hallier f. rock rosemary 2/0
METU2 Merremia tuberosa (L.) Rendle Spanish arborvine 3/0
MEUM Merremia umbellata (L.) Hallier f. hogvine 4/0
MERTE Mertensia Roth bluebells 1/0
MEBR Mertensia brevistyla S. Wats. shortstyle bluebells 4/0
MECI3 Mertensia ciliata (James ex Torr.) G. Don tall fringed bluebells 7/1
MECIC2 Mertensia ciliata (James ex Torr.) G. Don var. ciliata tall fringed bluebells 2/0
MEFR2 Mertensia franciscana Heller Franciscan bluebells 3/0
MELA3 Mertensia lanceolata (Pursh) DC. prairie bluebells 2/1
MELO4 Mertensia longiflora Greene small bluebells 1/0
MEMAM Mertensia maritima (L.) S.F. Gray var. maritima oysterleaf    
PNMA Pneumaria maritima (L.) Hill   0/1
MEOB Mertensia oblongifolia (Nutt.) G. Don oblongleaf bluebells 4/0
MEOBN Mertensia oblongifolia (Nutt.) G. Don var. nevadensis (A. Nels.) L.O. Williams   2/0
MEVI4 Mertensia viridis (A. Nels.) A. Nels.   2/0
MEPA Mertensia paniculata (Ait.) G. Don tall bluebells 0/1
MEPAB Mertensia paniculata (Ait.) G. Don var. borealis (J.F. Macbr.) L.O. Williams northern bluebells 2/0
MEVI3 Mertensia virginica (L.) Pers. ex Link Virginia bluebells 8/2
MESEM Mesembryanthemum L. iceplant 5/0
MECR3 Mesembryanthemum crystallinum L. common iceplant 6/0
MENO2 Mesembryanthemum nodiflorum L. slenderleaf iceplant 2/0
MEGE4 Mespilus germanica L. medlar 1/0
MEME8 Metaneckera menziesii (Hook. in Drumm.) Steere Menzies' metaneckera moss 6/0
MEJA Metaplexis japonica (Thunb.) Makino rough potato 2/0
METAS2 Metasequoia Miki ex Hu & W. C. Cheng dawn redwood 3/0
MEGL8 Metasequoia glyptostroboides Hu & W. C. Cheng dawn redwood 2/0
MEPOP2 Metrosideros polymorpha Gaud. var. polymorpha 'ohi'a lehua    
MECOP Metrosideros collina (J.R. & G. Forst.) Gray ssp. polymorpha (Gaud.) Rock   3/0
MESA7 Metroxylon sagu Rottb. sago palm 2/0
MECO19 Metzgeria conjugata Lindb. 4/0
MEFU4 Metzgeria furcata (L.) Dumort. 3/0
METE11 Metzgeria temperata Kuwah. 2/0
MIMI Mibora minima (L.) Desv. early sandgrass 3/0
MIDO4 Michelia doltsopa Buch.-Ham. ex DC. sweet michelia 3/0
MIFO Miconia foveolata Cogn. Puerto Rico johnnyberry 1/0
MILA8 Miconia laevigata (L.) D. Don smooth johnnyberry 1/0
MIMI3 Miconia mirabilis (Aubl.) L.O. Williams camasey cuatrocanales 1/0
MIPA7 Miconia pachyphylla Cogn. camasey racimoso 1/0
MIRA2 Miconia racemosa (Aubl.) DC. camasey felpa 2/0
MISI2 Miconia sintenisii Cogn. mountain johnnyberry 2/0
MITH Miconia thomasiana DC. camasey tomaso 3/0
MIMI6 Micranthemum micranthemoides (Nutt.) Wettst. Nuttall's mudflower 0/1
MIUM Micranthemum umbrosum (J.F. Gmel.) Blake shade mudflower 1/0
MIKU Microchloa kunthii Desv. Kunth's smallgrass 0/1
MIST Microlaena stipoides (Labill.) R. Br. weeping grass 2/0
MIBO Microseris borealis (Bong.) Schultz-Bip. apargidium 2/0
MILI5 Microseris lindleyi (DC.) Gray Lindley's silverpuffs    
MILI Microseris linearifolia (Nutt.) Schultz-Bip.   3/0
MINU Microseris nutans (Hook.) Schultz-Bip. nodding microceris 1/0
MIVI Microstegium vimineum (Trin.) A. Camus Nepalese browntop 4/2
EUVI3 Eulalia viminea (Trin.) Kuntze   2/0
MIGR Microsteris gracilis (Hook.) Greene slender phlox 3/0
MIGRG4 Microsteris gracilis (Hook.) Greene var. gracilis slender phlox    
PHGR16 Phlox gracilis (Hook.) Greene   2/0
PHGRG Phlox gracilis (Hook.) Greene ssp. gracilis (Hook.) Greene [superfluous autonym]   3/0
MIGRH Microsteris gracilis (Hook.) Greene var. humilior (Hook.) Cronq. slender phlox 4/0
MIMI17 Microsteris micrantha (Kellogg) Greene   0/1
PHGRH Phlox gracilis (Hook.) Greene ssp. humilis (Greene) Mason   2/0
MIPE8 Microthlaspi perfoliatum (L.) F.K. Mey. claspleaf pennycress    
THPE Thlaspi perfoliatum L.   0/1
MIMIE Mielichhoferia mielichhoferiana (Funck in Hook.) Loeske var. elongata (Hoppe & Hornsch. ex Hook.) Wijk & Marg. Mielichhofer's copper moss    
MIEL5 Mielichhoferia elongata (Hoppe & Hornsch. ex Hook.) Nees & Hornsch   7/0
MISC Mikania scandens (L.) Willd. climbing hempvine 9/2
MIEF Milium effusum L. American milletgrass 4/2
MILTO Miltonia Lindl. pansy orchid 1/0
MIPI5 Mimetanthe pilosa (Benth.) Greene false monkeyflower 1/0
MIPI8 Mimulus pilosus (Benth.) S. Wats.   3/0
MIAC3 Mimosa aculeaticarpa Ortega catclaw mimosa 1/0
MIACB Mimosa aculeaticarpa Ortega var. biuncifera (Benth.) Barneby catclaw mimosa    
MIBI3 Mimosa biuncifera Benth.   1/0
MIAR4 Mimosa arenosa (Willd.) Poir. elegant mimosa 1/0
MIBO2 Mimosa borealis Gray fragrant mimosa 2/0
MICA9 Mimosa casta L. graceful mimosa 1/0
MICE Mimosa ceratonia L. black ambret 2/0
MIDI8 Mimosa diplotricha C. Wright ex Sauvalle giant false sensitive plant 1/0
MIDIL Mimosa distachya Cav. var. laxiflora (Benth.) Barneby Arizona mimosa    
MILA2 Mimosa laxiflora Benth.   1/0
MIDY Mimosa dysocarpa Benth. velvetpod mimosa 1/0
MIEM Mimosa emoryana Benth. Emory's mimosa 1/0
MIMA Mimosa malacophylla Gray softleaf mimosa 1/0
MIMI22 Mimosa microphylla Dry. littleleaf sensitive-briar 2/0
MOMI3 Morongia microphylla (Dry.) Britt.   0/1
MOUN4 Morongia uncinata (Willd.) Britt.   0/1
SCUN Schrankia uncinata Willd.   2/0
MIPE2 Mimosa pellita Kunth ex Willd. lollipop mimosa    
MIPI Mimosa pigra auct. non L. [misapplied]   1/0
MIPU8 Mimosa pudica L. shameplant 3/0
MIQUL2 Mimosa quadrivalvis L. var. ?leptocarpa (DC.) Barneby fourvalve mimosa    
SCLE3 Schrankia leptocarpa DC.   1/0
MIST2 Mimosa strigillosa Torr. & Gray powderpuff 2/0
MIMUL Mimulus L. monkeyflower 10/0
MIAL2 Mimulus alatus Ait. sharpwing monkeyflower 4/2
MIAL3 Mimulus alsinoides Douglas ex Benth. wingstem monkeyflower 1/0
MIAN Mimulus androsaceus Curran ex Greene rockjasmine monkeyflower 1/0
MIAR Mimulus arenarius A.L. Grant sandloving monkeyflower 2/0
MIBI4 Mimulus bicolor Hartw. ex Benth. yellow and white monkeyflower 1/0
MIBI6 Mimulus bigelovii (Gray) Gray Bigelow's monkeyflower 3/0
MIBIB2 Mimulus bigelovii (Gray) Gray var. bigelovii Bigelow's monkeyflower 3/0
MIBO3 Mimulus bolanderi Gray Bolander's monkeyflower 1/0
MIBR3 Mimulus breviflorus Piper shortflower monkeyflower 1/0
MIBR5 Mimulus breweri (Greene) Coville Brewer's monkeyflower 7/0
MICA3 Mimulus cardinalis Dougl. ex Benth. scarlet monkeyflower 8/1
MICO2 Mimulus congdonii B.L. Robins. Congdon's monkeyflower 2/0
MICU2 Mimulus cusickii (Greene) Rattan Cusick's monkeyflower 6/0
MIDO2 Mimulus douglasii (Benth.) Gray brownies 2/0
MIEA Mimulus eastwoodiae Rydb. Eastwood's monkeyflower 4/0
MIFL2 Mimulus floribundus Lindl. manyflowered monkeyflower 5/0
MIFR2 Mimulus fremontii (Benth.) Gray Fremont's monkeyflower 6/0
MIGLJ Mimulus glabratus Kunth var. jamesii (Torr. & Gray ex Benth.) Gray James' monkeyflower    
MIGE3 Mimulus geyeri Torr.   0/1
MIGU Mimulus guttatus DC. seep monkeyflower 20/1
MILA13 Mimulus langsdorfii Donn ex Greene   0/1
MIJE Mimulus jepsonii A.L. Grant Jepson's monkeyflower 2/0
MIJO Mimulus johnstonii A.L. Grant Johnston's monkeyflower 2/0
MIKE Mimulus kelloggii (Curran ex Greene) Curran ex Gray Kellogg's monkeyflower 6/0
MILA4 Mimulus latidens (Gray) Greene broadtooth monkeyflower 2/0
MILE2 Mimulus lewisii Pursh purple monkeyflower 11/0
MIME Mimulus mephiticus Greene foul odor monkeyflower 4/0
MIMO3 Mimulus moschatus Dougl. ex Lindl. muskflower 6/1
MIMOM2 Mimulus moschatus Dougl. ex Lindl. var. moschatus muskflower 2/0
MINA Mimulus nanus Hook. & Arn. dwarf purple monkeyflower 6/0
MIOV2 Mimulus ovatus (Gray) N. Holmgren eggleaf monkeyflower 2/0
MIPR Mimulus primuloides Benth. primrose monkeyflower 5/1
MIPY Mimulus pygmaeus A.L. Grant Egg Lake monkeyflower 1/0
MIRI Mimulus ringens L. Allegheny monkeyflower 2/1
MIRIR Mimulus ringens L. var. ringens Allegheny monkeyflower 3/0
MIRU Mimulus rubellus Gray little redstem monkeyflower 3/0
MIRU2 Mimulus rupicola Coville & A.L. Grant Death Valley monkeyflower 3/0
MISU2 Mimulus suksdorfii Gray Suksdorf's monkeyflower 5/1
MITI Mimulus tilingii Regel Tiling's monkeyflower 7/0
MITO Mimulus torreyi Gray Torrey's monkeyflower 3/0
MITR3 Mimulus tricolor Hartw. ex Lindl. tricolor monkeyflower 3/0
MIAR3 Minuartia arctica (Stev. ex Ser.) Graebn. arctic stitchwort    
ARAR20 Arenaria arctica Stev. ex Ser.   0/1
MIBI9 Minuartia biflora (L.) Schinz & Thellung mountain stitchwort    
ARSA7 Arenaria sajanensis Willd. ex Schlecht.   0/1
MICA7 Minuartia californica (Gray) Mattf. California sandwort    
ARCA29 Arenaria californica (Gray) Brewer   2/0
MICA8 Minuartia caroliniana (Walt.) Mattf. pine barren stitchwort    
ARCA31 Arenaria caroliniana Walt.   1/1
MIDA Minuartia dawsonensis (Britt.) House rock stitchwort    
ARLI8 Arenaria litorea Fern.   0/1
MIGR7 Minuartia groenlandica (Retz.) Ostenf. Greenland stitchwort    
ARGR9 Arenaria groenlandica (Retz.) Spreng.   1/1
MIMA3 Minuartia macrantha (Rydb.) House House's stitchwort    
ALMA14 Alsinanthe macrantha (Rydb.) W.A. Weber   2/0
MIMIM Minuartia michauxii (Fenzl) Farw. var. michauxii Michaux's stitchwort    
ARST8 Arenaria stricta Michx.   0/1
MIMIT Minuartia michauxii (Fenzl) Farw. var. texana (B.L. Robins.) Mattf. Texas stitchwort    
ARTE8 Arenaria texana (B.L. Robins.) Britt.   0/1
MINUF Minuartia nuttallii (Pax) Briq. ssp. fragilis (Maguire & A. Holmgren) McNeill brittle sandwort 2/0
MIOB2 Minuartia obtusiloba (Rydb.) House twinflower sandwort 2/0
LIOB4 Lidia obtusiloba (Rydb.) A.& D. Löve   2/0
MIPA6 Minuartia patula (Michx.) Mattf. pitcher's stitchwort 2/0
ARPA27 Arenaria patula Michx.   1/1
MIRU3 Minuartia rubella (Wahlenb.) Hiern. beautiful sandwort    
TRRU3 Tryphane rubella (Wahlenb.) Reichenb.   3/0
MIUN Minuartia uniflora (Walt.) Mattf. oneflower stitchwort    
ARUN3 Arenaria uniflora (Walt.) Muhl.   1/0
MIRAB Mirabilis L. four o'clock 1/0
MIAL4 Mirabilis albida (Walt.) Heimerl white four o'clock 5/0
ALAL5 Allionia albida Walt.   0/1
MIAL5 Mirabilis alipes (S. Wats.) Pilz winged four o'clock 10/0
MICO7 Mirabilis coccinea (Torr.) Benth. & Hook. f. scarlet four o'clock 1/0
MICO15 Mirabilis comata (Small) Standl. hairy-tuft four o'clock    
OXCO6 Oxybaphus comatus (Small) Weatherby   1/0
MIGL3 Mirabilis glabra (S. Wats.) Standl. smooth four o'clock    
ALCA13 Allionia carletonii Standl.   0/1
MIHI Mirabilis hirsuta (Pursh) MacM. hairy four o'clock    
ALHI3 Allionia hirsuta Pursh   0/1
MIJA Mirabilis jalapa L. marvel of Peru 6/0
MILAL3 Mirabilis laevis (Benth.) Curran var. laevis desert wishbone-bush    
MICA6 Mirabilis californica Gray   5/0
MILAV Mirabilis laevis (Benth.) Curran var. villosa (Kellogg) Spellenberg wishbone-bush    
MIBI8 Mirabilis bigelovii Gray   6/0
MIBIB Mirabilis bigelovii Gray var. bigelovii Gray [superfluous autonym]   2/0
MILI3 Mirabilis linearis (Pursh) Heimerl narrowleaf four o'clock 1/0
ALLI3 Allionia linearis Pursh   0/1
OXLI Oxybaphus linearis (Pursh) B.L. Robins.   3/0
MILO2 Mirabilis longiflora L. sweet four o'clock 3/0
MIME8 Mirabilis melanotricha (Standl.) Spellenberg 1/0
MIMU Mirabilis multiflora (Torr.) Gray Colorado four o'clock 25/0
MIMUP Mirabilis multiflora (Torr.) Gray var. pubescens S. Wats. Colorado four o'clock 1/0
MIFR5 Mirabilis froebelii (Behr) Greene   2/0
MINY Mirabilis nyctaginea (Michx.) MacM. heartleaf four o'clock 1/0
ALNY Allionia nyctaginea Michx.   0/1
MIOX Mirabilis oxybaphoides (Gray) Gray smooth spreading four o'clock 3/0
MIFL3 Miscanthus floridulus (Labill.) Warb. ex K. Schum. & Lauterb. Pacific Island silvergrass 1/0
MISA Miscanthus sacchariflorus (Maxim.) Franch. Amur silvergrass 2/0
MISI Miscanthus sinensis Anderss. Chinese silvergrass 5/2
MIBR12 Misodendrum brachystachyum DC. 2/0
MIOR Misopates orontium (L.) Raf. linearleaf snapdragon    
ANOR2 Antirrhinum orontium L.   0/1
MIRE Mitchella repens L. partridgeberry 7/3
MIBR6 Mitella breweri Gray Brewer's miterwort 4/0
MIDI3 Mitella diphylla L. twoleaf miterwort 3/1
MINU3 Mitella nuda L. naked miterwort 0/1
MIPE Mitella pentandra Hook. fivestamen miterwort 5/1
MITRT Mitella trifida Graham var. trifida threeparted miterwort 1/0
MIPE3 Mitreola petiolata (J.F. Gmel.) Torr. & Gray lax hornpod    
CYMI Cynoctonum mitreola (L.) Britt.   0/1
MNAM Mnium ambiguum H. Müll. ambiguous calcareous moss 4/0
MNHO Mnium hornum Hedw. horn calcareous moss 6/0
MNMA70 Mnium marginatum (With.) Brid. ex P. Beauv. olivegreen calcareous moss 2/0
MNSP70 Mnium spinosum (Voit) Schwaegr. spinosum calcareous moss 6/0
MNSP2 Mnium spinulosum Bruch & Schimp. in B.S.G. largetooth calcareous moss 4/0
MNST Mnium stellare Hedw. stellar calcareous moss 5/0
MNTH70 Mnium thomsonii Schimp. Thomson's calcareous moss 4/0
MOCA Modiola caroliniana (L.) G. Don Carolina bristlemallow 3/1
MOLA6 Moehringia lateriflora (L.) Fenzl bluntleaf sandwort 1/1
MOMA3 Moehringia macrophylla (Hook.) Fenzl largeleaf sandwort 2/1
MOBL Moerckia blyttii (Moerch) Brockm. 2/0
MOBR Mohavea breviflora Coville golden desert-snapdragon 1/0
MOCO Mohavea confertiflora (A. DC.) Heller ghost flower 2/0
MOCA2 Molinia caerulea (L.) Moench purple moorgrass 3/1
AICA2 Aira caerulea L.   0/1
MONU2 Mollugo nudicaulis Lam. nakedstem carpetweed 1/0
MOVE Mollugo verticillata L. green carpetweed 3/2
MOCH2 Momordica charantia L. balsampear 7/0
MOLI Monanthochloe littoralis Engelm. shoregrass 1/1
MONAR Monarda L. beebalm 1/0
MOBR2 Monarda bradburiana Beck eastern beebalm 1/1
MOFI2 Monarda fistulosa Sims   1/0
MOCI Monarda citriodora Cerv. ex Lag. lemon beebalm 2/0
MOCIA Monarda citriodora Cerv. ex Lag. ssp. austromontana (Epling) Scora lemon beebalm    
MOAU2 Monarda austromontana Epling   1/0
MOCIC2 Monarda citriodora Cerv. ex Lag. ssp. citriodora var. citriodora lemon beebalm    
MODI7 Monarda dispersa Small   0/1
MOCL Monarda clinopodia L. white bergamot 2/1
MODI Monarda didyma L. scarlet beebalm 3/1
MOFI Monarda fistulosa L. wild bergamot 8/2
MOFIM2 Monarda fistulosa L. ssp. fistulosa var. menthifolia (Graham) Fern. mintleaf bergamot    
MOME3 Monarda menthifolia Graham   4/0
MOFIM3 Monarda fistulosa L. ssp. fistulosa var. mollis (L.) Benth. wild bergamot    
MOMO2 Monarda mollis L.   0/1
MOLI2 Monarda lindheimeri Engelm. & Gray ex Gray Lindheimer's beebalm 1/0
MOME Monarda media Willd. purple bergamot 0/1
MOPE Monarda pectinata Nutt. pony beebalm 0/1
MOPU Monarda punctata L. spotted beebalm 7/1
MOPUO Monarda punctata L. ssp. punctata var. occidentalis (Epling) Palmer & Steyermark spotted beebalm    
MOPUO2 Monarda punctata L. ssp. occidentalis Epling   1/0
MORU Monarda russeliana Nutt. ex Sims redpurple beebalm 1/0
MOGL Monardella glauca Greene pale monardella 2/0
MOODG3 Monardella odoratissima Benth. var. glauca (Greene) H. St. John   1/0
MOLA2 Monardella lanceolata Gray mustang monardella 1/0
MOLI3 Monardella linoides Gray flaxleaf monardella 2/0
MOMA Monardella macrantha Gray red monardella 5/0
MOOD Monardella odoratissima Benth. mountain monardella 9/0
MOPU2 Monardella purpurea T.J. Howell serpentine monardella 2/0
MOUN Monardella undulata Benth. curlyleaf monardella 2/0
MOVI2 Monardella villosa Benth. coyote mint 1/0
MOUN2 Moneses uniflora (L.) Gray single delight 3/1
MOHA2 Monochoria hastata (L.) Solms [excluded] arrowleaf falsepickerelweed 1/0
MOVA Monochoria vaginalis (Burm. f.) K. Presl ex Kunth heartshape false pickerelweed 1/0
MOMY Monodora myristica (Gaertner) Dunal calabash nutmeg 1/0
MONU Monolepis nuttalliana (J.A. Schultes) Greene Nuttall's povertyweed 5/2
MOLA3 Monolopia lanceolata Nutt. common monolopia 2/0
MOBE Monoptilon bellidiforme Torr. & Gray ex Gray daisy desertstar 1/0
MOBE2 Monoptilon bellioides (Gray) Hall Mojave desertstar 5/0
MOHY3 Monotropa hypopithys L. pinesap 10/0
HYAM5 Hypopitys americana (DC.) Small   0/1
HYLA9 Hypopitys lanuginosa (Michx.) Nutt.   0/1
MOUN3 Monotropa uniflora L. Indianpipe 17/1
MOOD2 Monotropsis odorata Schwein. ex Ell. pygmypipes 0/1
MOSQ Monroa squarrosa (Nutt.) Torr. false buffalograss 0/2
MOAD Monstera adansonii Schott Adanson's monstera 2/0
MODE Monstera deliciosa Liebm. tarovine 4/0
MOHI Montanoa hibiscifolia (Benth.) Standl. treedaisy 1/0
MOCH Montia chamissoi (Ledeb. ex Spreng.) Greene water minerslettuce 6/1
CRCH10 Crunocallis chamissoi (Ledeb. ex Spreng.) Rydb.   0/1
MOFO Montia fontana L. annual water minerslettuce 4/1
MOLI4 Montia linearis (Dougl. ex Hook.) Greene narrowleaf minerslettuce 1/0
MOPAP Montia parvifolia (Moc. ex DC.) Greene ssp. parvifolia littleleaf minerslettuce 1/0
MOAR3 Montrichardia arborescens (L.) Schott yautia madera 3/0
MOCA6 Morella californica (Cham.) Wilbur California wax myrtle    
MYCA13 Myrica californica Cham.   2/0
MOCA7 Morella caroliniensis (P. Mill.) Small southern bayberry 1/1
MYCA4 Myrica caroliniensis P. Mill.   0/1
MYHE Myrica heterophylla Raf.   1/0
MOCE2 Morella cerifera (L.) Small wax myrtle 4/1
MYCE Myrica cerifera L.   2/1
MOHO3 Morella holdridgeana (Lundell) Kartesz Palo de cera 1/0
MOIN Morella inodora (Bartr.) Small scentless bayberry 0/1
MOPE6 Morella pensylvanica (Mirbel) Kartesz, comb. nov. ined. northern bayberry 1/0
MOCI3 Morinda citrifolia L. Indian mulberry 3/0
MOOL Moringa oleifera Lam. horseradishtree 1/0
MOAM Morisonia americana L. ratapple 4/0
MOOD3 Morrenia odorata (Hook. & Arn.) Lindl. latexplant 1/0
MOUT Mortonia utahensis (Coville ex Gray) A. Nels. Utah mortonia 2/0
MORUS Morus L. mulberry 2/1
MOAL Morus alba L. white mulberry 3/1
MOALT Morus alba L. var. tatarica (L.) Ser.   3/0
MORU2 Morus rubra L. red mulberry 9/2
MOHE Mouriri helleri Britt. mameyuelo 3/0
MUPR Mucuna pruriens (L.) DC. cowitch 3/0
MUUR Mucuna urens (L.) Medik. oxeye bean 2/0
MUAN Muhlenbergia andina (Nutt.) A.S. Hitchc. foxtail muhly 0/1
MUCO4 Muhlenbergia comata (Thurb.) Thurb. ex Benth.   0/1
MUAP Muhlenbergia appressa C.O. Goodding Devils Canyon muhly 0/1
MUAR Muhlenbergia arenacea (Buckl.) A.S. Hitchc. ear muhly 0/1
MUAR2 Muhlenbergia arenicola Buckl. sand muhly 0/1
MUAR3 Muhlenbergia arizonica Scribn. Arizona muhly 0/1
MUAR4 Muhlenbergia arsenei A.S. Hitchc. Navajo muhly 0/1
MUAS Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi scratchgrass 3/1
SPAS3 Sporobolus asperifolius (Nees & Meyen ex Trin.) Nees   0/1
MUBR2 Muhlenbergia brevis C.O. Goodding short muhly 0/1
MUBU Muhlenbergia bushii Pohl nodding muhly    
MUBR4 Muhlenbergia brachyphylla Bush   0/1
MUCA Muhlenbergia californica Vasey California muhly 1/1
MUCA2 Muhlenbergia capillaris (Lam.) Trin. hairawn muhly 1/2
MUCU Muhlenbergia curtifolia Scribn. Utah muhly 0/1
MUCU2 Muhlenbergia ×curtisetosa (Scribn.) Bush (pro sp.) [frondosa × schreberi] 0/1
MUCU3 Muhlenbergia cuspidata (Torr. ex Hook.) Rydb. plains muhly 0/2
MUBR3 Muhlenbergia brevifolia (Nutt.) M.E. Jones   0/1
MUDE Muhlenbergia depauperata Scribn. sixweeks muhly 0/1
MUDU Muhlenbergia dubia Fourn. ex Hemsl. pine muhly 0/1
MUDU3 Muhlenbergia dumosa Scribn. ex Vasey bamboo muhly 0/1
MUEL2 Muhlenbergia elongata Scribn. ex Beal sycamore muhly    
MUXE Muhlenbergia xerophila C.O. Goodding   0/1
MUEL Muhlenbergia eludens C.G. Reeder gravelbar muhly 0/1
MUEM Muhlenbergia emersleyi Vasey bullgrass 3/1
MUEX Muhlenbergia expansa (Poir.) Trin. cutover muhly 0/1
MUFI Muhlenbergia filiculmis Vasey slimstem muhly 0/1
MUFI2 Muhlenbergia filiformis (Thurb. ex S. Wats.) Rydb. pullup muhly 1/1
MUSI2 Muhlenbergia simplex (Scribn.) Rydb.   0/1
MUFR Muhlenbergia fragilis Swallen delicate muhly 1/1
MUFR2 Muhlenbergia frondosa (Poir.) Fern. wirestem muhly 0/1
MUGL Muhlenbergia glabriflora Scribn. inland muhly 1/1
MUGL2 Muhlenbergia glauca (Nees) B.D. Jackson desert muhly 0/1
MUGL3 Muhlenbergia glomerata (Willd.) Trin. spiked muhly 1/1
MUIN Muhlenbergia ×involuta Swallen (pro sp.) [lindheimeri × reverchonii] 0/1
MUJO Muhlenbergia jonesii (Vasey) A.S. Hitchc. Modoc muhly 0/1
MULI Muhlenbergia lindheimeri A.S. Hitchc. Lindheimer's muhly 0/1
MULO Muhlenbergia longiligula A.S. Hitchc. longtongue muhly 1/1
MUMA4 Muhlenbergia macroura (Kunth) Hitchc. muhly 1/0
MUME2 Muhlenbergia mexicana (L.) Trin. Mexican muhly 1/3
MUAM Muhlenbergia ambigua Torr.   0/1
MUFO Muhlenbergia foliosa (Roem. & Schult.) Trin.   1/0
MUMI Muhlenbergia microsperma (DC.) Trin. littleseed muhly 1/1
MUMI2 Muhlenbergia minutissima (Steud.) Swallen annual muhly 0/1
SPCO11 Sporobolus confusus auct. non (Fourn.) Vasey [misapplied]   0/1
MUMO Muhlenbergia montana (Nutt.) A.S. Hitchc. mountain muhly 1/1
MUPA5 Muhlenbergia palmeri Vasey southwestern muhly    
MUDU2 Muhlenbergia dubioides C.O. Goodding   0/1
MUPA2 Muhlenbergia pauciflora Buckl. New Mexico muhly 2/1
MUPE Muhlenbergia pectinata C.O. Goodding combtop muhly 0/1
MUPE3 Muhlenbergia peruviana (Beauv.) Steud. Peruvian muhly    
MUPU Muhlenbergia pulcherrima Scribn. ex Beal   0/1
MUPO Muhlenbergia polycaulis Scribn. cliff muhly 1/1
MUPO2 Muhlenbergia porteri Scribn. ex Beal bush muhly 7/1
MUPU2 Muhlenbergia pungens Thurb. sandhill muhly 3/2
MURA Muhlenbergia racemosa (Michx.) B.S.P. marsh muhly 2/3
MURA4 Muhlenbergia ramulosa (Kunth) Swallen green muhly    
MUWO Muhlenbergia wolfii (Vasey) Rydb.   0/1
MURE Muhlenbergia repens (J. Presl) A.S. Hitchc. creeping muhly 0/1
MURE2 Muhlenbergia reverchonii Vasey & Scribn. seep muhly 0/1
MURI Muhlenbergia richardsonis (Trin.) Rydb. mat muhly 1/1
MURI2 Muhlenbergia rigens (Benth.) A.S. Hitchc. deergrass 4/1
MUMA3 Muhlenbergia marshii I.M. Johnston   0/1
MUMU2 Muhlenbergia mundula I.M. Johnston   0/1
MURI3 Muhlenbergia rigida (Kunth) Trin. purple muhly 0/1
MUME Muhlenbergia metcalfei M.E. Jones   1/1
MUSC Muhlenbergia schreberi J.F. Gmel. nimblewill 4/3
MUPA6 Muhlenbergia palustris Scribn.   0/1
MUSE Muhlenbergia setifolia Vasey curlyleaf muhly 0/1
MUSI Muhlenbergia sinuosa Swallen marshland muhly 0/1
MUSO Muhlenbergia sobolifera (Muhl. ex Willd.) Trin. rock muhly 0/2
MUSOS Muhlenbergia sobolifera (Muhl. ex Willd.) Trin. var. setigera Scribn.   0/1
MUSP4 Muhlenbergia spiciformis Trin. longawn muhly    
MUPA Muhlenbergia parviglumis Vasey   0/1
MUST Muhlenbergia straminea A.S. Hitchc. screwleaf muhly    
MUVI2 Muhlenbergia virescens auct. non (Kunth) Kunth [misapplied]   0/1
MUSY Muhlenbergia sylvatica Torr. ex Gray woodland muhly 1/1
MUUM Muhlenbergia umbrosa Scribn.   0/1
MUTE Muhlenbergia tenuiflora (Willd.) B.S.P. slimflower muhly 0/2
MUTE4 Muhlenbergia tenuifolia (Kunth) Trin. slender muhly    
MUMO2 Muhlenbergia monticola Buckl.   0/1
MUTE2 Muhlenbergia texana Buckl. Texas muhly 0/1
MUTH Muhlenbergia thurberi Rydb. Thurber's muhly 0/1
MUTO Muhlenbergia torreyana (J.A. Schultes) A.S. Hitchc. New Jersey muhly 3/1
SPTO7 Sporobolus torreyanus (J.A. Schultes) Nash   0/1
MUTO2 Muhlenbergia torreyi (Kunth) A.S. Hitchc. ex Bush ring muhly 1/1
MUGR Muhlenbergia gracillima Torr.   0/1
MUUN Muhlenbergia uniflora (Muhl.) Fern. bog muhly 1/1
SPUN2 Sporobolus uniflorus (Muhl.) Scribn. & Merr.   0/1
MUUT Muhlenbergia utilis (Torr.) A.S. Hitchc. aparejograss 0/1
MUVIV Muhlenbergia villiflora A.S. Hitchc. var. villosa (Swallen) C.W. Morden hairy muhly    
MUVI Muhlenbergia villosa Swallen   0/1
MUWR Muhlenbergia wrightii Vasey ex Coult. spike muhly 0/1
MUCL Muilla clevelandii (S. Wats.) Hoover San Diego goldenstar 1/0
BLCL2 Bloomeria clevelandii S. Wats.   2/0
MUTR Muilla transmontana Greene inland muilla 2/0
MUCA4 Muntingia calabura L. strawberrytree 3/0
MUKE Murdannia keisak (Hassk.) Hand.-Maz. wartremoving herb 2/1
ANKE3 Aneilema keisak Hassk.   2/0
MUNU Murdannia nudiflora (L.) Brenan nakedstem dewflower    
CONU7 Commelina nudiflora L.   0/1
MUSI3 Murdannia simplex (Vahl) Brenan 1/0
MUEX2 Murraya exotica L. Chinese box 1/0
MUSA2 Musa L. banana 8/0
MUBA Musa balbisiana Colla banana 1/0
MUPA3 Musa ×paradisiaca L. (pro sp.) [acuminata × balbisiana] French plantain 2/0
MUBO Muscari botryoides (L.) P. Mill. common grape hyacinth 5/1
MUCO2 Muscari comosum (L.) P. Mill. tassel grape hyacinth 1/0
MUNE Muscari neglectum Guss. ex Ten. starch grape hyacinth 1/0
MURA2 Muscari racemosum (L.) Lam. & DC.   0/1
MUDI Musineon divaricatum (Pursh) Raf. leafy wildparsley 0/1
MUTE3 Musineon tenuifolium (Nutt. ex Torr. & Gray) Coult. & Rose slender wildparsley 0/1
MUSSA Mussaenda L. 1/0
MYPE Myagrum perfoliatum L. bird's-eye cress 0/1
MYAN2 Mylia anomala (Hook.) Gray 6/0
MYTA Mylia taylorii (Hook.) Gray 2/0
MYHO4 Myosotidium hortensia (Decne.) Baill. giant forget-me-not 3/0
MYOSO Myosotis L. forget-me-not 2/0
MYAR Myosotis arvensis (L.) Hill field forget-me-not 0/1
MYDI Myosotis discolor Pers. changing forget-me-not 4/0
MYVE5 Myosotis versicolor (Pers.) Sm.   0/1
MYLA Myosotis laxa Lehm. bay forget-me-not 0/1
MYMA Myosotis macrosperma Engelm. largeseed forget-me-not 1/1
MYSC Myosotis scorpioides L. true forget-me-not 6/2
MYST2 Myosotis stricta Link ex Roemer & J.A. Schultes strict forget-me-not 1/0
MYMI Myosotis micrantha auct. non Pallas ex Lehm. [misapplied]   0/1
MYSY Myosotis sylvatica Ehrh. woodland forget-me-not 2/0
MYVE Myosotis verna Nutt. spring forget-me-not 1/0
MYVI2 Myosotis virginica auct. non (L.) B.S.P. [misapplied]   0/1
MYAQ Myosoton aquaticum (L.) Moench giantchickweed    
ALAQ Alsine aquatica (L.) Britt.   0/1
MYAP Myosurus apetalus C. Gay bristly mousetail 6/0
MYAPB Myosurus apetalus C. Gay var. borealis Whittemore bristly mousetail    
MYAR3 Myosurus aristatus auct. non Benth. [misapplied]   1/1
MYMI2 Myosurus minimus L. tiny mousetail 5/2
MYCI Myrcia citrifolia (Aubl.) Urban red rodwood 2/0
MYMA5 Myrcia maricaensis Alain maricao rodwood 1/0
MYSP Myrcia splendens (Sw.) DC. punchberry 1/0
MYFL Myrciaria floribunda (West ex Willd.) Berg guavaberry 1/0
MYRIC Myrica L. sweetgale 0/2
MYGA Myrica gale L. sweetgale 1/1
GAPA8 Gale palustris Chev.   2/0
MYAL3 Myriophyllum alterniflorum DC. alternateflower watermilfoil 0/1
MYAQ2 Myriophyllum aquaticum (Vell.) Verdc. parrot feather watermilfoil 0/1
MYBR Myriophyllum brasiliense Camb.   1/0
MYFA2 Myriophyllum farwellii Morong Farwell's watermilfoil 0/1
MYHE2 Myriophyllum heterophyllum Michx. twoleaf watermilfoil 1/2
MYHU Myriophyllum humile (Raf.) Morong low watermilfoil 0/1
MYPI Myriophyllum pinnatum (Walt.) B.S.P. cutleaf watermilfoil 0/1
MYSI Myriophyllum sibiricum Komarov shortspike watermilfoil    
MYEX Myriophyllum exalbescens Fern.   1/0
MYSP2 Myriophyllum spicatum L. Eurasian watermilfoil 1/2
MYTE Myriophyllum tenellum Bigelow slender watermilfoil 0/1
MYVE3 Myriophyllum verticillatum L. whorl-leaf watermilfoil 1/2
MYFR2 Myrospermum frutescens Jacq. cercipo 1/0
MYBA3 Myroxylon balsamum (L.) Harms balsam of Tolu 1/0
MYBAP Myroxylon balsamum (L.) Harms var. pereirae (Royle) Harms balsam of Peru 1/0
MYOD Myrrhis odorata (L.) Scop. anise 1/0
MYCO9 Myrtus communis L. myrtle 2/0
MYJU70 Myurella julacea (Schwaegr.) Schimp. in B.S.G. myurella moss 2/0
MYTE3 Myurella tenerrima (Brid.) Lindb. myurella moss 1/0
NAFL Najas flexilis (Willd.) Rostk. & Schmidt nodding waternymph 2/2
NAGR Najas gracillima (A. Braun ex Engelm.) Magnus slender waternymph 0/1
NAGU Najas guadalupensis (Spreng.) Magnus southern waternymph 1/1
NAMA Najas marina L. spiny naiad 1/1
NAMI Najas minor All. brittle waternymph 1/1
NAAR Nama aretioides (Hook. & Arn.) Brand ground nama 3/0
NACA3 Nama californicum (Gray) Bacon California fiddleleaf 1/0
NACA Nama carnosum (Woot.) C.L. Hitchc. sand fiddleleaf 2/0
NADE Nama demissum Gray purplemat 8/0
NADE2 Nama densum J.G. Lemmon leafy nama 1/0
NAHA Nama havardii Gray Havard's fiddleleaf 1/0
NAHI Nama hispidum Gray bristly nama 12/0
NALO Nama lobbii Gray Lobb's fiddleleaf 3/1
NARE Nama retrorsum J.T. Howell betatakin fiddleleaf 2/0
NARO Nama rothrockii Gray Rothrock's fiddleleaf 2/0
NAST Nama stenocarpum Gray mud fiddleleaf 2/0
NAXY Nama xylopodum (Woot. & Standl.) C.L. Hitchc. yellowseed fiddleleaf 1/0
NADO Nandina domestica Thunb. sacred bamboo 2/0
NADI2 Napaea dioica L. glademallow 1/1
NARCI Narcissus L. daffodil 8/0
NABU Narcissus bulbocodium L. petticoat daffodil 3/0
NAJO Narcissus jonquilla L. jonquil 2/0
NAPO Narcissus poeticus L. poet's narcissus 1/0
NAPS Narcissus pseudonarcissus L. daffodil 3/1
NACO5 Nardia compressa (Hook.) Gray 1/0
NAIN5 Nardia insecta Lindb. 1/0
NASC2 Nardia scalaris Gray 3/0
NAST3 Nardus stricta L. matgrass 1/1
NAAM Narthecium americanum Ker-Gawl. yellow asphodel 3/0
ABAM4 Abama americana (Ker-Gawl.) Morong   0/1
NACA2 Narthecium californicum Baker California bog asphodel 2/0
NACE Nassella cernua (Stebbins & R.M. Love) Barkworth nodding needlegrass    
STCE Stipa cernua Stebbins & R.M. Love   0/1
NALE2 Nassella lepida (A.S. Hitchc.) Barkworth foothill needlegrass    
STLE3 Stipa lepida A.S. Hitchc.   0/1
NALE3 Nassella leucotricha (Trin. & Rupr.) Pohl Texas wintergrass    
STLE5 Stipa leucotricha Trin. & Rupr.   2/1
NANE Nassella neesiana (Trin. & Rupr.) Barkworth Uruguayan needlegrass    
STNE Stipa neesiana Trin. & Rupr.   1/0
NAPU4 Nassella pulchra (A.S. Hitchc.) Barkworth purple needlegrass 1/0
STPU2 Stipa pulchra A.S. Hitchc.   1/1
NATE3 Nassella tenuissima (Trin.) Barkworth finestem needlegrass    
STTE4 Stipa tenuissima Trin.   0/1
NATR3 Nassella trichotoma Hackel ex Arech. serrated tussock 1/0
NAVI4 Nassella viridula (Trin.) Barkworth green needlegrass    
STVI4 Stipa viridula Trin.   1/2
NAOF Nasturtium officinale Ait. f. watercress 4/0
RONA2 Rorippa nasturtium-aquaticum (L.) Hayek   1/1
SINA4 Sisymbrium nasturtium-aquaticum L.   0/1
NABR Navarretia breweri (Gray) Greene Brewer's navarretia 6/0
NACA6 Navarretia capillaris (Kellogg) Kuntze miniature gilia    
GICA4 Gilia capillaris Kellogg   1/0
NAFO Navarretia fossalis Moran vernalpool pincushionplant 1/0
NAHA2 Navarretia hamata Greene hooked pincushionplant 2/0
NAIN2 Navarretia intertexta (Benth.) Hook. needleleaf navarretia 2/0
NALEM Navarretia leucocephala Benth. ssp. minima (Nutt.) Day least navarretia 2/0
NAMI3 Navarretia minima Nutt.   1/1
NANIN Navarretia nigelliformis Greene ssp. nigelliformis adobe navarretia 1/0
NAPR2 Navarretia prostrata (Gray) Greene prostrate pincushionplant 3/0
NASIS Navarretia sinistra (M.E. Jones) L.A. Johnson ssp. sinistra Alva Day's gilia    
GISI2 Gilia sinistra M.E. Jones   3/0
NECO8 Neckera complanata (Hedw.) Hüb. neckera moss 4/0
NEPE4 Neckera pennata Hedw. neckera moss 4/0
NECO Nectandra coriacea (Sw.) Griseb. lancewood 6/0
NEPA4 Nectandra patens (Sw.) Griseb. capberry 1/0
NEBU Neea buxifolia (Hook. f.) Heimerl saltwood 1/0
NERE3 Neeragrostis reptans (Michx.) Nicora creeping lovegrass    
ERRE2 Eragrostis reptans (Michx.) Nees   0/1
ERWE3 Eragrostis weigeltiana (Reichenb. ex Trin.) Bush   0/1
NELUM Nelumbo Adans. lotus 1/0
NELU Nelumbo lutea Willd. American lotus 9/2
NENU2 Nelumbo nucifera Gaertn. sacred lotus 5/0
NENE3 Nelumbium nelumbo (L.) Druce   0/1
NEGR Nemacladus gracilis Eastw. slender threadplant 1/0
NEGE Nemastylis geminiflora Nutt. prairie pleatleaf 8/0
NEAC2 Nemastylis acuta Herbert   0/1
NEMES2 Nemesia Vent. nemesia 4/0
NEAP Nemophila aphylla (L.) Brummitt smallflower baby blue eyes    
NEMI2 Nemophila microcalyx (Nutt.) Fisch. & C.A. Mey.   0/1
NEMA Nemophila maculata Benth. ex Lindl. fivespot 1/0
NEME Nemophila menziesii Hook. & Arn. baby blue eyes 6/0
NEMEA Nemophila menziesii Hook. & Arn. var. atomaria (Fisch. & C.A. Mey.) Chandler baby blue eyes 2/0
NEMEM Nemophila menziesii Hook. & Arn. var. menziesii baby blue eyes 1/0
NEPH Nemophila phacelioides Nutt. largeflower baby blue eyes 4/0
NESP Nemophila spatulata Coville Sierra baby blue eyes 2/0
NEAQ2 Neobeckia aquatica (Eat.) Greene lakecress 0/1
NEFI Neogaerrhinum filipes (Gray) Rothm. Filipes snapdragon    
ASFI4 Asarina filipes (Gray) Pennell   1/0
NEOMA Neomarica Sprague neomarica 1/0
NEBR5 Neomarica brachypus (Baker) Sprague 1/0
NEWI2 Neonotonia wightii (Wight & Arn.) Lackey perennial soybean 2/0
NEORE Neoregelia L.B. Sm. neoregelia 1/0
NEVO Neorudolphia volubilis (Willd.) Britt. bejuco de alambre 2/0
NECO2 Neostapfia colusana (Burtt-Davy) Burtt-Davy Colusagrass 0/1
NEHU2 Neotorularia humilis (C.A. Mey.) Hedge & J. Léonard low northern-rockcress    
ARNO5 Arabidopsis novae-angliae (Rydb.) Britt.   0/1
BRHU Braya humilis (C.A. Mey.) B.L. Robins.   2/0
NEPEN Nepenthes L. 1/0
NECA2 Nepeta cataria L. catnip 5/1
NERA2 Nepeta racemosa Lam. raceme catnip 1/0
NEPHR Nephrolepis Schott swordfern 1/0
NECR2 Nephrophyllidium crista-galli (Menzies ex Hook.) Gilg deercabbage 2/0
NEAQ Nepsera aquatica (Aubl.) Naud. altea 1/0
NELU2 Neptunia lutea (Leavenworth) Benth. yellow puff 3/1
NEPL Neptunia plena (L.) Benth. water dead and awake 2/0
NEPR2 Neptunia prostrata (Lam.) Baill. garden puff    
NEOL2 Neptunia oleracea Lour.   1/0
NEBO Nerine bowdenii W. Watson 1/0
NECA3 Nerisyrenia camporum (Gray) Greene bicolor fanmustard 6/0
GRCA2 Greggia camporum Gray   1/0
NELI Nerisyrenia linearifolia (S. Wats.) Greene White Sands fanmustard 4/0
NEOL Nerium oleander L. oleander 14/0
NEPA3 Neslia paniculata (L.) Desv. ballmustard 1/1
NEUM Nestronia umbellula Raf. leechbrush 0/1
NEAL Neviusia alabamensis Gray Alabama snow-wreath 2/0
NECL Neviusia cliftonii Shevock, Ertter & Taylor Shasta snow-wreath 1/0
NEYRA Neyraudia Hook. f. neyraudia 2/0
NERE Neyraudia reynaudiana (Kunth) Keng ex A.S. Hitchc. silkreed 0/1
NIPH Nicandra physalodes (L.) Gaertn. apple of Peru 2/0
PHPH3 Physalodes physalodes (L.) Britt.   0/1
NIOC Nicolletia occidentalis Gray Mojave hole-in-the-sand plant 6/0
NICOT Nicotiana L. tobacco 3/0
NIAT Nicotiana attenuata Torr. ex S. Wats. coyote tobacco 7/0
NIGL Nicotiana glauca Graham tree tobacco 3/0
NILO Nicotiana longiflora Cav. longflower tobacco 0/1
NIOB Nicotiana obtusifolia Mertens & Galeotti desert tobacco 2/0
NIOBO Nicotiana obtusifolia Mertens & Galeotti var. obtusifolia desert tobacco 2/0
NITR Nicotiana trigonophylla Dunal   2/0
NIRU Nicotiana rustica L. Aztec tobacco 1/1
NITA Nicotiana tabacum L. cultivated tobacco 3/0
NIERE Nierembergia Ruiz & Pavón cupflower 1/0
NIDA Nigella damascena L. devil in the bush 2/0
NIPL Nissolia platycalyx S. Wats. broadsepal yellowhood 1/0
NISC Nissolia schottii (Torr.) Gray Schott's yellowhood 1/0
NIMO Nitrophila mohavensis Munz & Roos Amargosa niterwort 5/0
NIOC2 Nitrophila occidentalis (Moq.) S. Wats. boraxweed 3/1
NOMO2 Noccaea montana (L.) F.K. Mey. alpine pennycress 3/0
NOMOF Noccaea montana (L.) F.K. Mey. var. fendleri (Gray) Kartesz, comb. nov. ined. Fendler's pennycress    
THFE3 Thlaspi fendleri Gray   3/0
THMOF Thlaspi montanum L. var. fendleri (Gray) P. Holmgren   7/0
NOMOM Noccaea montana (L.) F.K. Mey. var. montana alpine pennycress    
THGL2 Thlaspi glaucum (A. Nelson) A. Nelson   1/0
NOER Nolina erumpens (Torr.) S. Wats. foothill beargrass 2/0
NOIN Nolina interrata Gentry Dehesa beargrass 1/0
NOMI Nolina microcarpa S. Wats. sacahuista 6/0
NOPA Nolina parryi S. Wats. Parry's beargrass 3/0
NOTE Nolina texana S. Wats. Texas sacahuista 2/0
NOAL2 Nothocalais alpestris (Gray) Chambers alpine lake prairie-dandelion 6/0
NOCU Nothocalais cuspidata (Pursh) Greene sharppoint prairie-dandelion    
AGCU2 Agoseris cuspidata (Pursh) Raf.   0/1
NOTR2 Nothocalais troximoides (Gray) Greene weevil prairie-dandelion 1/0
NONE3 Nothochelone nemorosa (Dougl. ex Lindl.) Straw woodland beardtongue 5/0
NODO Nothofagus dombeyi (Mirb.) Blume coigue 3/0
NOOB Nothofagus obliqua (Birb.) Blume roble beech 2/0
NOGR Notholaena grayi Davenport Gray's cloak fern 2/0
NOGR2 Notholaena greggii (Mett. ex Kuhn) Maxon Gregg's cloak fern 3/0
NOLE Notholaena lemmonii D.C. Eat. Lemmon's cloak fern 1/0
NOST Notholaena standleyi Maxon star cloak fern 5/0
NOBI2 Nothoscordum bivalve (L.) Britt. crowpoison 6/1
ALBI3 Allium bivalve (L.) Kuntze   2/0
NOBO Nothoscordum borbonicum Kunth fragrant false garlic 1/0
NOTOC Notocactus (K.M. Schumann) Backeb. & F.M. Knuth notocactus 3/0
NOOR Notothylas orbicularis (Schwein.) Sull. round notothylas 4/0
NOCU3 Nowellia curvifolia (Dicks.) Mitt. 4/0
NULU Nuphar lutea (L.) Sm. yellow pond-lily 4/1
NULUA Nuphar lutea (L.) Sm. ssp. advena (Ait.) Kartesz & Gandhi yellow pond-lily 1/0
NUAD2 Nuphar advena (Ait.) Ait. f.   1/0
NYAD Nymphaea advena Ait.   0/1
NYMA Nymphaea macrophylla Small   0/1
NULUP Nuphar lutea (L.) Sm. ssp. polysepala (Engelm.) E.O. Beal Rocky Mountain pond-lily 5/0
NULUS Nuphar lutea (L.) Sm. ssp. sagittifolia (Walt.) E.O. Beal yellow pond-lily    
NYSA Nymphaea sagittifolia Walt.   0/1
NUCA Nuttallanthus canadensis (L.) D.A. Sutton Canada toadflax 3/0
LICA6 Linaria canadensis (L.) Chaz.   4/1
NUTE Nuttallanthus texanus (Scheele) D.A. Sutton Texas toadflax 2/0
LITE5 Linaria texana Scheele   1/0
NYCA Nyctaginia capitata Choisy devil's bouquet 6/0
NYMPH Nymphaea L. waterlily 19/0
NYCA3 Nymphaea caerulea Savigny Egyptian lotus 16/0
NYCA2 Nymphaea capensis Thunb. Cape blue waterlily 1/0
NYEL Nymphaea elegans Hook. tropical royalblue waterlily 1/0
NYLO Nymphaea lotus L. white Egyptian lotus 1/0
NYME Nymphaea mexicana Zucc. yellow waterlily 2/0
NYOD Nymphaea odorata Ait. American white waterlily 10/1
NYODO Nymphaea odorata Ait. ssp. odorata American white waterlily    
CAOD4 Castalia odorata (Ait.) Wood   0/1
NYODT Nymphaea odorata Ait. ssp. tuberosa (Paine) Wiersma & Hellquist American white waterlily    
CATU7 Castalia tuberosa (Paine) Greene   0/1
NYTU Nymphaea tuberosa Paine   1/0
NYTE Nymphaea tetragona Georgi pygmy waterlily 1/0
CATE17 Castalia tetragona (Georgi) Lawson   0/1
NYAQ Nymphoides aquatica (J.F. Gmel.) Kuntze big floatingheart 1/1
NYCO Nymphoides cordata (Ell.) Fern. little floatingheart 3/0
NYLA Nymphoides lacunosa (Vent.) Kuntze   0/1
NYPE Nymphoides peltata (Gmel.) Kuntze yellow floatingheart 1/0
NYNY Nymphoides nymphaeoides (L.) Britt.   0/1
NYFR2 Nypa fruticans Wurmb nipa palm 3/0
NYSSA Nyssa L. tupelo 5/2
NYAQ2 Nyssa aquatica L. water tupelo 5/2
NYBI Nyssa biflora Walt. swamp tupelo 1/1
NYSYB Nyssa sylvatica Marsh. var. biflora (Walter) Sarg.   2/0
NYOG Nyssa ogeche Bartr. ex Marsh. Ogeechee tupelo 4/0
NYSY Nyssa sylvatica Marsh. blackgum 10/3
OBVI Obolaria virginica L. Virginia pennywort 2/1
OCHNA Ochna L. ochna 1/0
OCPY Ochroma pyramidale (Cav. ex Lam.) Urban West Indian balsa 4/0
OCEL Ochrosia elliptica Labill. elliptic yellowwood 1/0
OCBA Ocimum basilicum L. sweet basil 4/0
OCCA5 Ocimum campechianum P. Mill. least basil 1/0
OCGR Ocimum gratissimum L. African basil 2/0
OCAC Oclemena acuminata (Michx.) Greene whorled wood aster    
ASAC6 Aster acuminatus Michx.   0/1
OCNE2 Oclemena nemoralis (Ait.) Greene bog aster    
ASNE Aster nemoralis Ait.   1/1
OCRE2 Oclemena reticulata (Pursh) Nesom pine barren whitetop aster 1/0
OCLE Ocotea leucoxylon (Sw.) De Laness. loblolly sweetwood 2/0
OCSP Ocotea spathulata Mez nemoca cimarrona 2/0
OCWR Ocotea wrightii (Meisn.) Mez Wright's laurel canelon 1/0
ODVES Odontites vernus (Bellardi) Dumort. ssp. serotinus (Syme) Corb. red bartsia    
ODSE Odontites serotinus Dumort.   0/1
ODTR Odontoglossum triumphans Rchb. F. & Warsz. 1/0
ODTU Odontonema tubiforme (Bertol.) Kuntze firespike 1/0
ODST Odontonema strictum (Nees) Kuntze   1/0
ODDE3 Odontoschisma denudatum (Mart.) Dumort. 3/0
ODSP Odontoschisma sphagni (Dicks.) Dumort. 3/0
ODHA Odontostomum hartwegii Torr. Hartweg's doll's-lily 3/0
OEMLE Oemleria Reichenb. oemleria 1/1
OECE Oemleria cerasiformis (Torr. & Gray ex Hook. & Arn.) Landon Indian plum 1/0
OSCE2 Osmaronia cerasiformis (Torr. & Gray ex Hook. & Arn.) Greene   4/1
OESA Oenanthe sarmentosa C. Presl ex DC. water parsely 1/0
OENOT Oenothera L. evening-primrose 10/0
OEAL Oenothera albicaulis Pursh whitest evening-primrose 14/0
ANAL8 Anogra albicaulis (Pursh) Britt.   0/1
OEAR Oenothera argillicola Mackenzie shale barren evening-primrose 0/1
OEBI Oenothera biennis L. common evening-primrose 15/2
OEMU2 Oenothera muricata L.   0/1
OEBR Oenothera brachycarpa Gray shortfruit evening-primrose 1/0
LABR3 Lavauxia brachycarpa (Gray) Britt.   0/1
OECA10 Oenothera caespitosa Nutt. tufted evening-primrose 17/0
OECAC2 Oenothera caespitosa Nutt. ssp. caespitosa tufted evening-primrose    
OECEC2 Oenothera cespitosa Nutt. ssp. cespitosa Nutt. [orthographic variant]   2/0
PACE2 Pachylophis cespitosus (Nutt.) Raimann [orthographic variant]   0/1
OECAM4 Oenothera caespitosa Nutt. ssp. marginata (Nutt. ex Hook. & Arn.) Munz tufted evening-primrose    
OECEM4 Oenothera cespitosa Nutt. ssp. marginata (Nutt. ex Hook. & Arn.) Munz [orthographic variant]   2/0
OECA2 Oenothera californica (S. Wats.) S. Wats. California evening-primrose 2/0
OECAA2 Oenothera californica (S. Wats.) S. Wats. ssp. avita W. Klein California evening-primrose 5/0
OECAE2 Oenothera californica (S. Wats.) S. Wats. ssp. eurekensis (Munz & Roos) W. Klein Eureka Dunes evening-primrose 4/0
OECA3 Oenothera canescens Torr. & Frém. spotted evening-primrose    
GACA7 Gaurella canescens (Torr. & Frém.) A. Nels.   0/1
OECA5 Oenothera cavernae Munz cavedwelling evening-primrose 2/0
OECO2 Oenothera coronopifolia Torr. & Gray crownleaf evening-primrose 2/0
ANCO7 Anogra coronopifolia (Torr. & Gray) Britt.   0/1
OEDE2 Oenothera deltoides Torr. & Frém. birdcage evening-primrose 11/0
OEDEA Oenothera deltoides Torr. & Frém. ssp. ambigua (S. Wats.) W. Klein birdcage evening-primrose 1/0
OEDED4 Oenothera deltoides Torr. & Frém. ssp. deltoides birdcage evening-primrose 2/0
OEDEH Oenothera deltoides Torr. & Frém. ssp. howellii (Munz) W. Klein Antioch Dunes evening-primrose 5/0
OEDEH2 Oenothera deltoides Torr. & Frém. var. howellii Munz   3/0
OEDR Oenothera drummondii Hook. beach evening-primrose 5/0
OEEL Oenothera elata Kunth Hooker's evening-primrose 4/1
OEELH Oenothera elata Kunth ssp. hirsutissima (Gray ex S. Wats.) W. Dietr. Hooker's evening-primrose    
OEHOA2 Oenothera hookeri Torr. & Gray var. angustifolia R.R. Gates   2/0
OEFL Oenothera flava (A. Nels.) Garrett yellow evening-primrose 2/1
OEFLF Oenothera flava (A. Nels.) Garrett ssp. flava yellow evening-primrose 3/0
OEFLT Oenothera flava (A. Nels.) Garrett ssp. taraxacoides (Woot. & Standl.) W.L. Wagner yellow evening-primrose 1/0
OEFR Oenothera fruticosa L. narrowleaf evening-primrose 8/1
OEFRF Oenothera fruticosa L. ssp. fruticosa narrowleaf evening-primrose    
KNAL Kneiffia allenii (Britt.) Small   0/1
KNFR Kneiffia fruticosa (L.) Raimann   0/1
KNLI Kneiffia linearis (Michx.) Spach   0/1
KNLO Kneiffia longipedicellata Small   0/1
OEFRG Oenothera fruticosa L. ssp. glauca (Michx.) Straley narrowleaf evening-primrose    
KNGL Kneiffia glauca (Michx.) Spach   0/1
OETE4 Oenothera tetragona Roth   2/0
OEGL Oenothera glazioviana Micheli redsepal evening-primrose 2/0
OEGR2 Oenothera grandis (Britt.) Smyth showy evening-primrose 5/0
OEHE3 Oenothera heterophylla Spach variableleaf evening-primrose 1/0
OEHO2 Oenothera howardii (A. Nels.) W.L. Wagner Howard's evening-primrose 3/0
OEHU Oenothera humifusa Nutt. seabeach evening-primrose 2/0
RAHU Raimannia humifusa (Nutt.) Rose   0/1
OEJA Oenothera jamesii Torr. & Gray trumpet evening-primrose 1/0
OELA Oenothera laciniata Hill cutleaf evening-primrose 6/0
RALA6 Raimannia laciniata (Hill) Rose   0/1
OELA2 Oenothera latifolia (Rydb.) Munz mountain evening-primrose    
OEPAL Oenothera pallida Lindl. ssp. latifolia (Rydb.) Munz   0/1
OELI Oenothera linifolia Nutt. threadleaf evening-primrose 2/0
KNLI2 Kneiffia linifolia (Nutt.) Spach   0/1
OELO Oenothera longissima Rydb. longstem evening-primrose 4/0
OEMA Oenothera macrocarpa Nutt. bigfruit evening-primrose 2/0
OEMAF Oenothera macrocarpa Nutt. ssp. fremontii (S. Wats.) W.L. Wagner Fremont's evening-primrose    
MEFR3 Megapterium fremontii (S. Wats.) Britt.   0/1
OEMAI2 Oenothera macrocarpa Nutt. ssp. incana (Gray) Wagner bigfruit evening-primrose    
OEMAI Oenothera macrocarpa Nutt. var. incana (Gray) Reveal   2/0
OEMAM Oenothera macrocarpa Nutt. ssp. macrocarpa bigfruit evening-primrose 2/0
MEMI6 Megapterium missouriense (Sims) Spach   0/1
OEMI5 Oenothera missouriensis Sims   4/0
OEMAO2 Oenothera macrocarpa Nutt. ssp. oklahomensis (J.B.S. Norton) Wagner Oklahoma evening-primrose 2/0
MEOK Megapterium oklahomense J.B.S. Norton   0/1
OENU Oenothera nuttallii Sweet Nuttall's evening-primrose    
ANNU6 Anogra nuttalliana Spach   0/1
OEOA Oenothera oakesiana (Gray) J.W. Robbins ex S. Wats. & Coult. Oakes' evening-primrose 0/1
OEPA Oenothera pallida Lindl. pale evening-primrose 8/0
OEPAP Oenothera pallida Lindl. ssp. pallida pale evening-primrose 3/0
OEPAR Oenothera pallida Lindl. ssp. runcinata (Engelm.) Munz & W. Klein pale evening-primrose 2/0
OEPE Oenothera perennis L. little evening-primrose 1/0
KNPU Kneiffia pumila (L.) Spach   0/1
OEPI2 Oenothera pilosella Raf. meadow evening-primrose 1/1
OEPIP Oenothera pilosella Raf. ssp. pilosella meadow evening-primrose    
KNPR Kneiffia pratensis Small   0/1
OEPIS Oenothera pilosella Raf. ssp. sessilis (Pennell) Straley meadow evening-primrose 1/0
OEPR Oenothera primiveris Gray desert evening-primrose 1/0
OEPRB Oenothera primiveris Gray ssp. bufonis (M.E. Jones) Munz desert evening-primrose 4/0
OEPRP Oenothera primiveris Gray ssp. primiveris desert evening-primrose 1/0
OEPS2 Oenothera psammophila (A. Nels. & J.F. Macbr.) W.L. Wagner, Stockhouse & Klein St. Anthony Dunes evening-primrose 4/0
OERH Oenothera rhombipetala Nutt. ex Torr. & Gray fourpoint evening-primrose 1/0
RARH3 Raimannia rhombipetala (Nutt. ex Torr. & Gray) Rose   0/1
OESP2 Oenothera speciosa Nutt. pinkladies 13/0
HASP4 Hartmannia speciosa (Nutt.) Small   0/1
OETR2 Oenothera triloba Nutt. stemless evening-primrose 3/0
LATR6 Lavauxia triloba (Nutt.) Spach   0/1
OEXY Oenothera xylocarpa Coville woodyfruit evening-primrose 5/0
OLDEN Oldenlandia L. oldenlandia 1/0
OLBO Oldenlandia boscii (DC.) Chapman Bosc's mille graines 1/0
OLUN Oldenlandia uniflora L. clustered mille graines 0/1
OLEU Olea europaea L. olive 3/1
OLEUC Olea europaea L. ssp. cuspidata (Wallich ex G. Don) Ciferri African olive    
OLEUA Olea europaea L. ssp. africana (P. Mill.) P. Green   3/0
OLAL3 Olearia allomii T. Kirk daisy bush 1/0
OLCH2 Olearia cheesmanii Cockayne & Allan daisy bush 1/0
OLAL2 Oligoneuron album (Nutt.) Nesom prairie goldenrod    
ASPT4 Aster ptarmicoides (Nees) Torr. & Gray   0/1
OLHO Oligoneuron houghtonii (Torr. & Gray ex Gray) Nesom Houghton's goldenrod    
SOHO Solidago houghtonii Torr. & Gray ex Gray   4/1
OLNI Oligoneuron nitidum (Torr. & Gray) Small shiny goldenrod    
SONI2 Solidago nitida Torr. & Gray   1/0
OLOH Oligoneuron ohioense (Frank ex Riddell) G.N. Jones Ohio goldenrod    
SOOH Solidago ohioensis Frank ex Riddell   0/1
OLRI2 Oligoneuron riddellii (Frank ex Riddell) Rydb. Riddell's goldenrod    
SORI Solidago riddellii Frank ex Riddell   0/1
OLRIR Oligoneuron rigidum (L.) Small var. rigidum stiff goldenrod    
SORI2 Solidago rigida L.   3/1
OLHE2 Oligotrichum hercynicum (Hedw.) Lam. & DC. oligotrichum moss 5/0
OLNEY Olneya Gray olneya 0/1
OLTE Olneya tesota Gray desert ironwood 7/0
OLDOI Olsynium douglasii (A. Dietr.) Bickn. var. inflatum (Suksdorf) Cholewa & D. Henderson inflated grasswidow 3/0
OLLA Olyra latifolia L. carrycillo 1/1
OMSU Omalotheca supina (L.) DC. alpine arctic cudweed    
GNSU2 Gnaphalium supinum L.   0/1
OMSY Omalotheca sylvatica (L.) Schultz-Bip. & F.W. Schultz woodland arctic cudweed    
GNSY2 Gnaphalium sylvaticum L.   0/1
OMAL Omphalodes aliena Gray Mexican navelwort 3/0
ONCID Oncidium Sw. dancing-lady orchid 1/0
ONRO2 Oncoba routledgei Sprague 3/0
ONSP3 Oncoba spinosa Forssk. 3/0
ONVI4 Oncophorus virens (Hedw.) Brid. oncophorus moss 6/0
ONPE3 Oncostema peruviana (L.) Speta Cuban-lily    
SCPE13 Scilla peruviana L.   1/0
ONVE Oncostema verna (Hudson) Speta sea-onion    
SCVE10 Scilla verna Huds.   2/0
ONVI Onobrychis viciifolia Scop. sainfoin 4/0
ONSA Onobrychis sativa Lam.   1/0
ONVI3 Onobrychis viciaefolia Scop. [orthographic variant]   1/0
ONSE Onoclea sensibilis L. sensitive fern 4/2
ONAL5 Ononis alopecuroides L. foxtail restharrow 1/0
ONRE Ononis repens L. common restharrow 1/0
ONSP Ononis spinosa L. spiny restharrow 1/0
ONAC Onopordum acanthium L. Scotch cottonthistle 3/1
ONIL Onopordum illyricum L. Illyrian cottonthistle 1/0
ONBEB Onosmodium bejariense DC. ex A. DC. var. bejariense soft-hair marbleseed    
ONMO Onosmodium molle Michx.   1/1
ONBEH Onosmodium bejariense DC. ex A. DC. var. hispidissimum (Mackenzie) B.L. Turner softhair marbleseed    
ONHI Onosmodium hispidissimum Mackenzie   1/1
ONBEO Onosmodium bejariense DC. ex A. DC. var. occidentale (Mackenzie) B.L. Turner western marbleseed    
ONOC Onosmodium occidentale Mackenzie   1/1
ONBES Onosmodium bejariense DC. ex A. DC. var. subsetosum (Mackenzie & Bush) B.L. Turner softhair marbleseed    
ONSU Onosmodium subsetosum Mackenzie & Bush   0/1
ONVI2 Onosmodium virginianum (L.) A. DC. wild Job's tears 0/1
OOEN Oonopsis engelmannii (Gray) Greene Engelmann's false goldenweed 0/1
OPCR Ophioglossum crotalophoroides Walter bulbous adderstongue 1/0
OPEN Ophioglossum engelmannii Prantl limestone adderstongue 1/1
OPNU Ophioglossum nudicaule L. f. least adderstongue 1/0
OPPE2 Ophioglossum petiolatum Hook. longstem adderstongue 1/0
OPPU3 Ophioglossum pusillum Raf. northern adderstongue    
OPVUP Ophioglossum vulgatum L. var. pseudopodum (Blake) Farw.   0/1
OPRE Ophioglossum reticulatum L. netted adderstongue 1/0
OPVU Ophioglossum vulgatum L. southern adderstongue 4/1
OPJA3 Ophiopogon jaburan (Sieb.) Lodd. lilyturf 1/0
OPIN2 Ophrys insectifera L. fly orchid 1/0
OPHI Oplismenus hirtellus (L.) Beauv. bristle basketgrass 3/2
OPHIS Oplismenus hirtellus (L.) Beauv. ssp. setarius (Lam.) Mez ex Ekman    
OPSE Oplismenus setarius (Lam.) Roemer & J.A. Schultes   0/1
OPHO Oplopanax horridus Miq. devilsclub 7/0
ECHO2 Echinopanax horridus (Miq.) Dcne. & Planch. ex H.A.T. Harms   0/1
OPUNT Opuntia P. Mill. pricklypear 8/0
OPAU2 Opuntia aurea McCabe ex E.M. Baxter golden pricklypear 1/0
OPBAA Opuntia basilaris Engelm. & Bigelow var. aurea (E.M. Baxter) W.T. Marsh.   4/0
OPBA2 Opuntia basilaris Engelm. & Bigelow beavertail pricklypear 6/0
OPBAB2 Opuntia basilaris Engelm. & Bigelow var. basilaris beavertail pricklypear 1/0
OPBAB Opuntia basilaris Engelm. & Bigelow var. brachyclada (Griffiths) Munz beavertail pricklypear 2/0
OPBAT Opuntia basilaris Engelm. & Bigelow var. treleasei (Coult.) Coult. ex Toumey Trelease's beavertail pricklypear 2/0
OPCH Opuntia chlorotica Engelm. & Bigelow dollarjoint pricklypear 2/0
OPCO4 Opuntia cochenillifera (L.) P. Mill. cochineal nopal cactus 2/0
OPDI3 Opuntia dillenii (Ker-Gawl.) Haw. erect pricklypear 7/0
OPSTD Opuntia stricta (Haw.) Haw. var. dillenii (Ker-Gawl.) L. Benson   1/0
OPEN3 Opuntia engelmannii Salm-Dyck cactus apple 8/0
OPENE Opuntia engelmannii Salm-Dyck ex Engelm. var. engelmannii cactus apple    
OPOCM Opuntia occidentalis Engelm. & Bigelow var. megacarpa (Griffiths) Munz   1/0
OPPHD Opuntia phaeacantha Engelm. var. discata (Griffiths) L. Benson & Walkington   18/0
OPENL Opuntia engelmannii Salm-Dyck var. lindheimeri (Engelm.) Parfitt & Pinkava Texas pricklypear 1/0
OPLI Opuntia lindheimeri Engelm.   1/0
OPFI Opuntia ficus-indica (L.) P. Mill. Barbary fig 7/0
OPOP Opuntia opuntia (L.) Karst.   0/1
OPFR Opuntia fragilis (Nutt.) Haw. brittle pricklypear 1/1
OPHU Opuntia humifusa (Raf.) Raf. devil's-tongue 10/1
OPLI3 Opuntia littoralis (Engelm.) Cockerell coastal pricklypear 3/0
OPLIP Opuntia littoralis (Engelm.) Cockerell var. piercei (Fosberg) L. Benson & Walkington coastal pricklypear 2/0
OPMA8 Opuntia macrocentra Engelm. purple pricklypear 3/0
OPMAM Opuntia macrocentra Engelm. var. macrocentra purple pricklypear    
OPVI Opuntia violacea Engelm.   1/0
OPVIM Opuntia violacea Engelm. var. macrocentra (Engelm.) L. Benson   5/0
OPMA2 Opuntia macrorhiza Engelm. twistspine pricklypear 2/0
OPMAM3 Opuntia macrorhiza Engelm. var. macrorhiza twistspine pricklypear    
OPTO3 Opuntia tortispina Engelm. & Bigelow   0/1
OPMI4 Opuntia microdasys (Lehm.) N.E. Pfeiffer angel's-wings 1/0
OPMO5 Opuntia monacantha (Willd.) Haw. common pricklypear 1/0
OPOR Opuntia oricola Philbrick chaparral pricklypear 2/0
OPPH Opuntia phaeacantha Engelm. tulip pricklypear 12/0
OPCA7 Opuntia camanchica Engelm. & Bigelow   0/1
OPPHM Opuntia phaeacantha Engelm. var. major Engelm.   20/0
OPPO Opuntia polyacantha Haw. plains pricklypear 9/1
OPPOA Opuntia polyacantha Haw. var. arenaria (Engelm.) Parfitt El Paso pricklypear    
OPAR3 Opuntia arenaria Engelm.   1/0
OPPOE Opuntia polyacantha Haw. var. erinacea (Engelm. & Bigelow ex Engelm.) Parfitt grizzlybear pricklypear    
OPER Opuntia erinacea Engelm. & Bigelow ex Engelm.   6/0
OPERE Opuntia erinacea Engelm. & Bigelow ex Engelm. var. erinacea Engelm. & Bigelow ex Engelm. [superfluous autonym]   5/0
OPPOH Opuntia polyacantha Haw. var. hystricina (Engelm. & Bigelow) Parfitt grizzlybear pricklypear    
OPERH Opuntia erinacea Engelm. & Bigelow ex Engelm. var. hystricina (Engelm. & Bigelow) L. Benson   3/0
OPPOP Opuntia polyacantha Haw. var. polyacantha hairspine pricklypear    
OPERU2 Opuntia erinacea Engelm. & Bigelow ex Engelm. var. utahensis (Engelm.) L. Benson   10/0
OPRE2 Opuntia repens Bello roving pricklypear 1/0
OPRI2 Opuntia riviereana Backeb. 1/0
OPRU3 Opuntia rufida Engelm. blind pricklypear 11/0
OPTR Opuntia triacantha (Willd.) Sweet Spanish lady 2/0
OPTU9 Opuntia tuna (L.) Miller elephantear pricklypear 3/0
OPVA4 Opuntia ×vaseyi (Coult.) Britt. & Rose [littoralis × phaeacantha] Vasey's coastal pricklypear    
OPLIV Opuntia littoralis (Engelm.) Cockerell var. vaseyi (Coult.) L. Benson & Walkington   1/0
OPVA Opuntia vaseyi (Coult.) Britt. & Rose [hybrid]   1/0
ORON Orbexilum onobrychis (Nutt.) Rydb. French-grass    
PSON Psoralea onobrychis Nutt.   0/1
ORPEP2 Orbexilum pedunculatum (P. Mill.) Rydb. var. pedunculatum Sampson's snakeroot    
PSPE3 Psoralea pedunculata (P. Mill.) Vail   1/1
ORPEP Orbexilum pedunculatum (P. Mill.) Rydb. var. psoralioides (Walt.) Isely Sampson's snakeroot 2/0
PSPS Psoralea psoralioides (Walt.) Cory   1/0
ORST Orbexilum stipulatum (Torr. & Gray) Rydb. largestipule leather-root    
PSST2 Psoralea stipulata Torr. & Gray   0/1
ORMO5 Orchis morio L. green-winged orchid 11/0
ORCA Orcuttia californica Vasey California Orcutt grass 3/1
ORPI Orcuttia pilosa Hoover hairy Orcutt grass 0/1
ORTE Orcuttia tenuis A.S. Hitchc. slender Orcutt grass 0/1
ORAL4 Oreostemma alpigenum (Torr. & Gray) Greene tundra aster 2/0
ORALH Oreostemma alpigenum (Torr. & Gray) Greene var. haydenii (Porter) Nesom tundra aster 3/0
ORMA Origanum majorana L. sweet marjoram 1/0
ORVU Origanum vulgare L. oregano 3/1
ORNU Ornithogalum nutans L. drooping star of Bethlehem 1/1
ORUM Ornithogalum umbellatum L. sleepydick 3/1
OROBA Orobanche L. broomrape 1/0
ORBU Orobanche bulbosa (Gray) G. Beck chaparral broomrape 3/0
ORCA2 Orobanche californica Cham. & Schlecht. California broomrape 4/0
ORCAC2 Orobanche californica Cham. & Schlecht. ssp. californica California broomrape    
ORGRN Orobanche grayana G. Beck var. nelsonii Munz   1/0
ORGRV Orobanche grayana G. Beck var. violacea (Eastw.) Munz   1/0
ORCO4 Orobanche cooperi (A. Gray) A. Heller desert broomrape 1/0
ORCO5 Orobanche corymbosa (Rydb.) Ferris flat-top broomrape 2/0
ORCOC3 Orobanche corymbosa (Rydb.) Ferris ssp. corymbosa flat-top broomrape 3/0
ORFA Orobanche fasciculata Nutt. clustered broomrape 10/0
ORFAF Orobanche fasciculata Nutt. var. franciscana Achey   2/0
THFA Thalesia fasciculata (Nutt.) Britt.   0/1
ORLU Orobanche ludoviciana Nutt. Louisiana broomrape 2/1
ORLUM Orobanche ludoviciana Nutt. ssp. multiflora (Nutt.) Collins, comb. nov. ined. manyflower broomrape    
ORMU Orobanche multiflora Nutt.   2/0
ORMI Orobanche minor Sm. hellroot 0/1
ORRA Orobanche ramosa L. hemp broomrape 0/1
ORUN Orobanche uniflora L. oneflowered broomrape 5/0
THUN3 Thalesia uniflora (L.) Britt.   0/1
ORFU Orogenia fusiformis S. Wats. California Indian potato 2/0
ORONT Orontium L. goldenclub 2/0
ORAQ Orontium aquaticum L. goldenclub 11/1
ORSE Orthilia secunda (L.) House sidebells wintergreen 2/0
PYSE Pyrola secunda L.   2/1
ORBR Orthocarpus bracteosus Benth. rosy owl's-clover 2/0
ORCU Orthocarpus cuspidatus Greene toothed owl's-clover 2/0
ORCUC Orthocarpus cuspidatus Greene ssp. copelandii (Eastw.) Chuang & Heckard Copeland's owl's-clover    
ORCO Orthocarpus copelandii Eastw.   2/0
ORLU2 Orthocarpus luteus Nutt. yellow owl's-clover 3/1
ORPU2 Orthocarpus purpureoalbus Gray ex S. Wats. purplewhite owl's-clover 3/0
ORTHO7 Orthosiphon Benth. orthosiphon 1/0
ORIN70 Orthothecium intricatum (Hartm.) Schimp. in B.S.G. intricate orthothecium moss 4/0
ORRU2 Orthothecium rufescens (Brid.) Schimp. in B.S.G. orthothecium moss 2/0
ORAF Orthotrichum affine Brid. orthotrichum moss 4/0
ORAN70 Orthotrichum anomalum Hedw. orthotrichum moss 4/0
ORCO10 Orthotrichum consimile Mitt. orthotrichum moss 7/0
ORCU2 Orthotrichum cupulatum Brid. orthotrichum moss 4/0
ORDI3 Orthotrichum diaphanum Brid. orthotrichum moss 5/0
ORGY Orthotrichum gymnostomum Bruch ex Brid. orthotrichum moss 1/0
ORLY Orthotrichum lyellii Hook. & Tayl. Lyell's orthotrichum moss 4/0
OROB70 Orthotrichum obtusifolium Brid. obtuseleaf aspen moss 6/0
ORPA6 Orthotrichum pallens Bruch ex Brid. orthotrichum moss 5/0
ORPU8 Orthotrichum pulchellum Brunt. in Winch. & Gateh. orthotrichum moss 6/0
ORPU9 Orthotrichum pumilum Sw. orthotrichum moss 3/0
ORRU3 Orthotrichum rupestre Schleich. ex Schwaegr. orthotrichum moss 5/0
ORSP6 Orthotrichum speciosum Nees in Sturm lanceolateleaf rock moss 4/0
ORST4 Orthotrichum stramineum Hornsch. in Brid. orthotrichum moss 5/0
ORST6 Orthotrichum striatum Hedw. orthotrichum moss 4/0
ORTE4 Orthotrichum tenellum Bruch ex Brid. orthotrichum moss 1/0
ORNE Oryctes nevadensis S. Wats. Nevada oryctes 2/0
ORBA6 Oryza barthii A. Chev. Barth's rice 1/0
ORBR4 Oryza breviligulata A. Chev. & Roehr.   1/0
ORGL2 Oryza glaberrima Steud. African rice 1/0
ORLA3 Oryza latifolia Desv. broadleaf rice 2/0
ORSA Oryza sativa L. rice 5/1
ORAS Oryzopsis asperifolia Michx. roughleaf ricegrass 0/2
ORHO2 Oryzopsis holciformis (M. Bieb.) Hack. ricegrass 2/0
OSTE Osmadenia tenella Nutt. false rosinweed 2/0
OSAM Osmanthus americanus (L.) Benth. & Hook. f. ex A. Gray devilwood 2/0
OSFR2 Osmanthus fragrans Lour. sweet osmanthus 1/0
OSBE Osmorhiza berteroi DC. sweetcicely    
WADI Washingtonia divaricata Britt.   0/1
OSBR Osmorhiza brachypoda Torr. California sweetcicely 1/0
OSCL Osmorhiza claytonii (Michx.) C.B. Clarke Clayton's sweetroot 2/0
WACL Washingtonia claytonii (Michx.) Britt.   0/1
OSDE Osmorhiza depauperata Phil. bluntseed sweetroot 4/0
WAOB Washingtonia obtusa Coult. & Rose   0/1
OSLO Osmorhiza longistylis (Torr.) DC. longstyle sweetroot 2/0
WALO2 Washingtonia longistylis (Torr.) Britt.   0/1
OSOC Osmorhiza occidentalis (Nutt. ex Torr. & Gray) Torr. western sweetroot 3/0
OSMUN Osmunda L. osmunda 1/0
OSCI Osmunda cinnamomea L. cinnamon fern 9/2
OSCIC Osmunda cinnamomea L. var. cinnamomea cinnamon fern 1/0
OSCL2 Osmunda claytoniana L. interrupted fern 4/2
OSRE Osmunda regalis L. royal fern 4/2
OSRES Osmunda regalis L. var. spectabilis (Willd.) A. Gray royal fern 1/0
OSTRY Ostrya Scop. hophornbeam 1/0
OSKN Ostrya knowltonii Sarg. Knowlton's hophornbeam 4/0
OSVI Ostrya virginiana (P. Mill.) K. Koch hophornbeam 17/4
OULI Ouratea littoralis Urban abey amarillo 2/0
OXALI Oxalis L. woodsorrel 5/0
OXAL Oxalis albicans Kunth radishroot woodsorrel 3/0
OXCO Oxalis corniculata L. creeping woodsorrel 2/0
OXRE Oxalis repens Thunb.   1/0
XACO2 Xanthoxalis corniculata (L.) Small   0/1
OXDE3 Oxalis debilis Kunth pink woodsorrel 1/0
OXDI Oxalis dichondrifolia Gray peonyleaf woodsorrel 2/0
OXDI2 Oxalis dillenii Jacq. slender yellow woodsorrel 4/0
XABR2 Xanthoxalis brittoniae (Small) Small   0/1
XAFI Xanthoxalis filipes (Small) Small   0/1
OXGR Oxalis grandis Small great yellow woodsorrel 2/0
XAGR Xanthoxalis grandis (Small) Small   0/1
OXLA6 Oxalis latifolia Kunth broadleaf woodsorrel 2/0
OXMA7 Oxalis macrocarpa (Small) R. Knuth sorrel 1/0
OXMO Oxalis montana Raf. mountain woodsorrel 1/0
OXAC3 Oxalis acetosella auct. non L. [misapplied]   1/1
OXNE Oxalis nelsonii (Small) R. Knuth sorrel 1/0
OXOR Oxalis oregana Nutt. redwood-sorrel 6/0
OXPE Oxalis pes-caprae L. Bermuda buttercup 1/0
OXPRP Oxalis priceae Small ssp. priceae tufted yellow woodsorrel    
XAPR Xanthoxalis priceae (Small) Small   0/1
OXRE5 Oxalis regnellii Miq. sorrel 4/0
OXRO4 Oxalis rosea Feuillee ex Jacq. sorrel 2/0
OXRU Oxalis rubra St.-Hil. windowbox woodsorrel 1/0
OXARR Oxalis articulata Savigny ssp. rubra (St.-Hil.) Lourteig   1/0
OXSP5 Oxalis spiralis G. Don spiral sorrel 1/0
OXSPV2 Oxalis spiralis Donn. Sm. ssp. vulcanicola (Donn.Sm.) Lourteig volcanic sorrel 2/0
OXST Oxalis stricta L. common yellow oxalis 9/0
OXEU2 Oxalis europaea Jord.   4/0
XABU Xanthoxalis bushii Small   0/1
XACY2 Xanthoxalis cymosa (Small) Small   0/1
XAIN2 Xanthoxalis interior Small   0/1
XARU Xanthoxalis rufa (Small) Small   0/1
XAST2 Xanthoxalis stricta (L.) Small   0/1
OXVI Oxalis violacea L. violet woodsorrel 14/0
IOVI Ionoxalis violacea (L.) Small   0/1
OXYDE Oxydendrum DC. sourwood 1/2
OXAR Oxydendrum arboreum (L.) DC. sourwood 10/1
OXYPE Oxypetalum R. Br. oxypetalum 1/0
OXFI Oxypolis filiformis (Walt.) Britt. water cowbane 0/1
OXRI Oxypolis rigidior (L.) Raf. stiff cowbane 5/2
OXRIA Oxypolis rigidior (L.) Raf. var. ambigua (Nutt.) B.L. Robins.   2/0
OXDI3 Oxyria digyna (L.) Hill alpine mountainsorrel 7/1
OXTE5 Oxystegus tenuirostris (Hook. & Tayl.) A. J. E. Sm. oxystegus moss 5/0
OXLU Oxystylis lutea Torr. & Frém. spiny caper 2/0
OXAB2 Oxytenanthera abyssinica (A. Rich.) Munro Abyssinia oxytenanthera 1/0
OXCA3 Oxytheca caryophylloides Parry chickweed oxytheca 2/0
OXDE Oxytheca dendroidea Nutt. narrowleaf oxytheca 3/0
OXPE2 Oxytheca perfoliata Torr. & Gray roundleaf oxytheca 1/0
OXWA Oxytheca watsonii Torr. & Gray Watson's oxytheca 6/0
OXYTR Oxytropis DC. locoweed 4/0
OXAR2 Oxytropis arctica R. Br. arctic locoweed 0/1
OXBO Oxytropis borealis DC. boreal locoweed 2/0
OXCA4 Oxytropis campestris (L.) DC. field locoweed 1/1
OXCAS3 Oxytropis campestris (L.) DC. var. spicata Hook. field locoweed    
OXSP2 Oxytropis spicata (Hook.) Standl.   1/0
OXDE2 Oxytropis deflexa (Pallas) DC. nodding locoweed 5/0
OXKO Oxytropis kobukensis Welsh Kobuk locoweed 1/0
OXLA3 Oxytropis lambertii Pursh purple locoweed 5/1
OXMU Oxytropis multiceps Nutt. Nuttall's oxytrope 0/1
OXORJ2 Oxytropis oreophila Gray var. jonesii (Barneby) Barneby Jone's oxytrope    
OXJO Oxytropis jonesii Barneby   2/0
OXORJ Oxytropis oreophila Gray var. juniperina Welsh mountain oxytrope 4/0
OXPO Oxytropis podocarpa Gray stalkpod locoweed 0/1
OXSE Oxytropis sericea Nutt. white locoweed 2/0
OXSP Oxytropis splendens Dougl. ex Hook. showy locoweed 0/1
PACHI Pachira Aubl. pachira 4/0
PAAQ2 Pachira aquatica Aubl. Guiana-chestnut 3/0
PAIN7 Pachira insignis (Sw.) Sw. ex Savigny wild chestnut 2/0
PASC14 Pachycereus schottii (Engelm.) D.R. Hunt senita cactus 2/0
LOSC5 Lophocereus schottii (Engelm.) Britt. & Rose   2/0
PAAH4 Pachyrhizus ahipa (Wedd.) L. Parodi yam bean 1/0
PAER3 Pachyrhizus erosus (L.) Urban yam bean 1/0
PAAN16 Pachyrhizus angulatus Rich. ex DC.   1/0
PATU7 Pachyrhizus tuberosus (Lam.) Spreng. ajipo 1/0
PAPR7 Pachysandra procumbens Michx. Allegheny-spurge 6/1
PATE11 Pachysandra terminalis Sieb. & Zucc. Japanese pachysandra 3/0
PALU7 Pachystachys lutea Nees lollipop-plant 3/0
PASP17 Pachystachys spicata (Ruiz & Pav.) Wassh. cardinal's-guard 2/0
PAAN6 Packera anonyma (Wood) W.A. Weber & A. Löve Small's ragwort    
SESM3 Senecio smallii Britt.   0/1
PAAN7 Packera antennariifolia (Britt.) W.A. Weber & A. Löve shale barren ragwort    
SEAN3 Senecio antennariifolius Britt.   0/1
PAAU3 Packera aurea (L.) A.& D. Löve golden ragwort 0/1
SEAU2 Senecio aureus L.   3/1
PACA15 Packera cana (Hook.) W.A. Weber & A. Löve woolly groundsel 4/0
SECA2 Senecio canus Hook.   0/1
PACR5 Packera crocata (Rydb.) W.A. Weber & A. Löve saffron ragwort 1/0
PADI11 Packera dimorphophylla (Greene) W.A. Weber & A. Löve splitleaf groundsel 3/0
PAEUE Packera eurycephala (Torr. & Gray ex Gray) W.A. Weber & A. Löve var. eurycephala widehead groundsel    
SEEU Senecio eurycephalus Torr. & Gray ex Gray   1/0
PAGL17 Packera glabella (Poir) C. Jeffrey butterweed 1/1
SEGL Senecio glabellus Poir.   2/1
PAGR9 Packera greenei (Gray) W.A. Weber & A. Löve flame ragwort    
SEGR3 Senecio greenei Gray   1/0
PAMI25 Packera millefolia (Torr. & Gray) W.A. Weber & A. Löve piedmont ragwort    
SEMI2 Senecio millefolium Torr. & Gray   2/0
PAMU11 Packera multilobata (Torr. & Gray ex Gray) W.A. Weber & A. Löve lobeleaf groundsel    
SEMU3 Senecio multilobatus Torr. & Gray ex Gray   4/0
PANE7 Packera neomexicana (Gray) W.A. Weber & A. Löve New Mexico groundsel 2/0
PAOB6 Packera obovata (Muhl. ex Willd.) W.A. Weber & A. Löve roundleaf ragwort 1/0
SEOB2 Senecio obovatus Muhl. ex Willd.   0/1
PAPA19 Packera pauciflora (Pursh) A.& D. Löve alpine groundsel    
SEDI9 Senecio discoideus (Hook.) Britt.   0/1
PAPA20 Packera paupercula (Michx.) A.& D. Löve balsam groundsel    
SECR6 Senecio crawfordii (Britt.) G.W. Douglas & G. Ruyle-Douglas   0/1
SEPA5 Senecio pauperculus Michx.   0/1
PAPL12 Packera plattensis (Nutt.) W.A. Weber & A. Löve prairie groundsel    
SEPL Senecio plattensis Nutt.   0/1
PAPS5 Packera pseudaurea (Rydb.) W.A. Weber & A. Löve falsegold groundsel 2/0
PAPSP2 Packera pseudaurea (Rydb.) W.A. Weber & A. Löve var. pseudaurea falsegold groundsel 1/0
PASC19 Packera schweinitziana (Nutt.) W.A. Weber & A. Löve Schweinitz's ragwort    
SERO6 Senecio robbinsii Oakes ex Rusby   1/1
PAST10 Packera streptanthifolia (Greene) W.A. Weber & A. Löve Rocky Mountain groundsel 1/0
PATO4 Packera tomentosa (Michx.) C. Jeffrey woolly ragwort 3/0
SETO2 Senecio tomentosus Michx.   3/1
PATR7 Packera tridenticulata (Rydb.) W.A. Weber & A. Löve threetooth ragwort    
SEDE6 Senecio densus Greene   0/1
PAWE4 Packera werneriifolia (Gray) W.A. Weber & A. Löve hoary groundsel 3/0
PAFO3 Paederia foetida L. stinkvine 1/0
PABR Paeonia brownii Dougl. ex Hook. Brown's peony 8/0
PACA2 Paeonia californica Nutt. California peony 3/0
PACO55 Paeonia corallina Retz. peony    
PACA37 Paeonia cambessedesii Willk.   1/0
PALA27 Paeonia lactiflora Pallas Chinese peony 3/0
PASU39 Paeonia suffruticosa Andrews moutan peony 3/0
PAAR8 Palafoxia arida B.L. Turner & Morris desert palafox 1/0
PAARA2 Palafoxia arida B.L. Turner & Morris var. arida desert palafox 2/0
PACA3 Palafoxia callosa (Nutt.) Torr. & Gray small palafox 1/0
OTCA Othake callosa (Nutt.) Bush   0/1
PARO Palafoxia rosea (Bush) Cory rosy palafox 2/0
PASP Palafoxia sphacelata (Nutt. ex Torr.) Cory othake 1/0
OTSP Othake sphacelata (Nutt. ex Torr.) Rydb.   0/1
PASQ70 Paludella squarrosa (Hedw.) Brid. angled paludella moss 6/0
PACO47 Palustriella commutata (Brid.) Ochyra palustriella moss    
CRCO19 Cratoneuron commutatum (Brid.) G. Roth   3/0
CRCOF Cratoneuron commutatum (Brid.) G. Roth var. falcatum (Brid.) Mönk.   5/0
PADE17 Palustriella decipiens (De Not.) Ochyra palustriella moss    
CRDE11 Cratoneuron decipiens (De Not.) Loeske   4/0
PAQU Panax quinquefolius L. American ginseng 1/1
PATR2 Panax trifolius L. dwarf ginseng 5/1
PANDA Pandanus L. f. screwpine 6/0
PATE2 Pandanus tectorius Parkinson ex Zucc. Tahitian screwpine 5/0
PAVE6 Pandanus veitchii hort. Veitch ex Masters & T. Moore Veitch's screwpine 2/0
PANIC Panicum L. panicgrass 2/0
PAAB Panicum abscissum Swallen cutthroat grass 0/1
PAAM2 Panicum amarum Ell. bitter panicgrass 3/2
PAAMA2 Panicum amarum Ell. var. amarulum (A.S. Hitchc. & Chase) P.G. Palmer bitter panicgrass 1/0
PAAM6 Panicum amarulum A.S. Hitchc. & Chase   1/2
PAAN Panicum anceps Michx. beaked panicgrass 3/2
PARH3 Panicum rhizomatum A.S. Hitchc. & Chase   0/1
PAAN4 Panicum antidotale Retz. blue panicum 1/0
PABE4 Panicum bergii Arechav. Berg's panicgrass 1/0
PABI80 Panicum bisulcatum Thunb. Japanese panicgrass 1/0
PABR2 Panicum brachyanthum Steud. prairie panicgrass 0/1
PABU Panicum bulbosum Kunth bulb panicgrass 1/1
PAPL Panicum plenum A.S. Hitchc. & Chase   0/1
PACA6 Panicum capillare L. witchgrass 4/3
PABA8 Panicum barbipulvinatum Nash   0/1
PACA8 Panicum capillarioides Vasey slender panicgrass 0/1
PADI Panicum dichotomiflorum Michx. fall panicgrass 3/2
PADIB Panicum dichotomiflorum Michx. var. bartowense (Scribn. & Merr.) Fern. fall panicgrass    
PABA2 Panicum bartowense Scribn. & Merr.   0/1
PAFAC Panicum fauriei A.S. Hitchc. var. carteri (Hosaka) Davidse Faurie's panicgrass    
PACA7 Panicum carteri Hosaka   2/0
PAFL2 Panicum flexile (Gattinger) Scribn. wiry panicgrass 0/2
PAGA Panicum gattingeri Nash Gattinger's panicgrass 1/3
PAGH Panicum ghiesbreghtii Fourn. Ghiesbreght's panicgrass 0/1
PAHA Panicum hallii Vasey Hall's panicgrass 1/1
PAHAF Panicum hallii Vasey var. filipes (Scribn.) Waller Hall's panicgrass    
PAFI7 Panicum filipes Scribn.   0/1
PAHAH Panicum hallii Vasey var. hallii Hall's panicgrass    
PALE2 Panicum lepidulum A.S. Hitchc. & Chase   0/1
PAHA2 Panicum havardii Vasey Havard's panicgrass 0/1
PAHE2 Panicum hemitomon J.A. Schultes maidencane 4/3
PAHI3 Panicum hillmanii Chase Hillman's panicgrass 0/1
PAHI4 Panicum hirsutum Sw. hairy panicgrass 2/1
PAHI5 Panicum hirticaule J. Presl Mexican panicgrass 2/1
PAHIH Panicum hirticaule J. Presl var. hirticaule Mexican panicgrass    
PAPA3 Panicum pampinosum A.S. Hitchc. & Chase   0/1
PAHIS Panicum hirticaule J. Presl var. stramineum (A.S. Hitchc. & Chase) Beetle Sonoran panicgrass    
PAST4 Panicum stramineum A.S. Hitchc. & Chase   0/1
PALA Panicum lacustre A.S. Hitchc. & Ekman lakeshore panicgrass 0/1
PALA8 Panicum laxum Sw. lax panicgrass 2/0
PAMA17 Panicum makarikariense (Gooss.) Van Rensb. panicum 1/0
PAMI2 Panicum miliaceum L. broomcorn millet 1/2
PAOB Panicum obtusum Kunth vine mesquite 3/2
PAPA35 Panicum paludosum Roxb. Chesapeake panicgrass 2/0
PAPH Panicum philadelphicum Bernh. ex Trin. Philadelphia panicgrass 0/2
PALI4 Panicum lithophilum Swallen   0/1
PATU Panicum tuckermanii Fern.   0/1
PAPS12 Panicum psilopodium Trin. barefoot panicgrass 1/0
PARE3 Panicum repens L. torpedo grass 1/1
PAGO Panicum gouinii Fourn.   0/1
PARI4 Panicum rigidulum Bosc ex Nees redtop panicgrass 2/1
PARIC Panicum rigidulum Bosc ex Nees var. combsii (Scribn. & Ball) Lelong Combs' panicgrass    
PACO22 Panicum combsii Scribn. & Ball   0/1
PARIE2 Panicum rigidulum Bosc ex Nees var. elongatum (Pursh) Lelong redtop panicgrass    
PAST12 Panicum stipitatum Nash   1/2
PARIP Panicum rigidulum Bosc ex Nees var. pubescens (Vasey) Lelong redtop panicgrass    
PALO Panicum longifolium Torr.   0/2
PARIR Panicum rigidulum Bosc ex Nees var. rigidulum redtop panicgrass    
PAAG Panicum agrostoides Spreng.   0/2
PACO19 Panicum condensum Nash   0/2
PATE3 Panicum tenerum Bey. ex Trin. bluejoint panicgrass 0/1
PATR4 Panicum trichoides Sw. tropical panicgrass 0/1
PAUR Panicum urvilleanum Kunth desert panicgrass 0/1
PAVE2 Panicum verrucosum Muhl. warty panicgrass 2/2
PAVI2 Panicum virgatum L. switchgrass 10/3
PAPAV Papaver L. poppy 2/0
PAAL5 Papaver alboroseum Hultén pale poppy 1/0
PAAR3 Papaver argemone L. long pricklyhead poppy 2/1
PADU Papaver dubium L. blindeyes 1/1
PANU3 Papaver nudicaule L. Icelandic poppy 0/1
PAOR5 Papaver orientale L. Oriental poppy 3/0
PARH2 Papaver rhoeas L. corn poppy 1/1
PASO2 Papaver somniferum L. opium poppy 1/1
PAPHI Paphiopedilum Pfitzer Venus' slipper 3/0
PABI2 Pappophorum bicolor Fourn. pink pappusgrass 0/1
PAPA7 Pappophorum pappiferum (Lam.) Kuntze limestone pappusgrass 2/0
PAVA2 Pappophorum vaginatum Buckl. whiplash pappusgrass    
PAMU3 Pappophorum mucronulatum auct. non Nees [misapplied]   2/1
PALO20 Parakmeria lotungensis (Chun & C.H. Tsoong) Y.W. Law eastern joy lotustree 1/0
PAEN8 Paraleucobryum enerve (Thed. in Hartm.) Loeske paraleucobryum moss 1/0
PALO15 Paraleucobryum longifolium (Hedw.) Loeske longleaf paraleucobryum moss 4/0
PAIN Parapholis incurva (L.) C.E. Hubbard curved sicklegrass 0/1
PACR2 Parathesis crenulata (Vent.) Hook. f. scratchthroat 1/0
PAVI3 Parentucellia viscosa (L.) Caruel yellow glandweed 1/0
PAPE5 Parietaria pensylvanica Muhl. ex Willd. Pennsylvania pellitory 3/2
PASP15 Parkia speciosa Hassk. parkia 1/0
PATI5 Parkia timoriana (DC.) Merr.    
PARO11 Parkia roxburghii G. Don   1/0
PAAC3 Parkinsonia aculeata L. Jerusalem thorn 7/0
PAFL6 Parkinsonia florida (Benth. ex Gray) S. Wats. blue paloverde    
CEFL6 Cercidium floridum Benth. ex Gray   8/0
PAMI5 Parkinsonia microphylla Torr. yellow paloverde 1/0
CEMI6 Cercidium microphyllum (Torr.) Rose & I.M. Johnston   15/0
PATE10 Parkinsonia texana (A. Gray) S. Watson Texas paloverde 1/0
PARME8 Parmentiera DC. parmentiera 6/0
PAAC13 Parmentiera aculeata (Kunth) Seem. cuachilote 4/0
PACE8 Parmentiera cereifera Seem. candle tree 3/0
PAAS2 Parnassia asarifolia Vent. kidneyleaf grass of Parnassus 0/1
PACA13 Parnassia caroliniana Michx. Carolina grass of Parnassus 0/1
PAFI3 Parnassia fimbriata Koenig fringed grass of Parnassus 4/1
PAGL3 Parnassia glauca Raf. fen grass of Parnassus 1/1
PAGR Parnassia grandifolia DC. largeleaf grass of Parnassus 0/1
PAKO3 Parnassia kotzebuei Cham. ex Spreng. Kotzebue's grass of Parnassus 1/1
PAPA8 Parnassia palustris L. marsh grass of Parnassus 4/2
PAPAP2 Parnassia palustris L. var. parviflora (DC.) Boivin smallflower grass of Parnassus    
PAPA9 Parnassia parviflora DC.   3/1
PACO56 Parodia concinna (Monv.) N.P. Taylor    
NOTA Notocactus tabularis (Monv.) N.P. Taylor   1/0
PAAR4 Paronychia argyrocoma (Michx.) Nutt. silvery nailwort 1/1
PACA11 Paronychia canadensis (L.) Wood smooth forked nailwort    
ANCA16 Anychia canadensis (L.) B.S.P.   0/1
PADI13 Paronychia dichotoma (Michx.) A. Nels.   0/1
PADE4 Paronychia depressa (Torr. & Gray) Nutt. ex A. Nels. spreading nailwort 0/1
PAFAF Paronychia fastigiata (Raf.) Fern. var. fastigiata hairy forked nailwort    
ANPO4 Anychia polygonoides Raf.   0/1
PAJA Paronychia jamesii Torr. & Gray James' nailwort 0/1
PAWA4 Paronychia wardii Rydb.   0/1
PAMO7 Paronychia montana (Small) Pax & K. Hoffmann mountain nailwort    
ANMO6 Anychiastrum montanum Small   0/1
PASE Paronychia sessiliflora Nutt. creeping nailwort 1/1
PAPE18 Parrotia persica (DC.) C.A. Mey. Persian ironwood 5/0
PAFI4 Parryella filifolia Torr. & Gray ex Gray common dunebroom 1/0
PAAR5 Parthenium argentatum Gray guayule 4/0
PAAU7 Parthenium auriculatum Britt. wild quinine 0/1
PACO11 Parthenium confertum Gray Gray's feverfew 1/0
PAHI8 Parthenium hispidum Raf. wild quinine 0/1
PAHY Parthenium hysterophorus L. Santa Maria feverfew 1/1
PAIN2 Parthenium incanum Kunth mariola 4/0
PAIN3 Parthenium integrifolium L. wild quinine 4/1
PARTH3 Parthenocissus Planch. creeper 2/0
PAQU2 Parthenocissus quinquefolia (L.) Planch. Virginia creeper 9/3
PAIN10 Parthenocissus inserta (Kerner) Fritsch   0/1
PATR6 Parthenocissus tricuspidata (Sieb. & Zucc.) Planch. Boston ivy 1/0
PAVI5 Parthenocissus vitacea (Knerr) A.S. Hitchc. woodbine 1/1
PASM Pascopyrum smithii (Rydb.) A. Löve western wheatgrass 2/1
AGSM Agropyron smithii Rydb.   3/2
PACH16 Paspalidium chapmanii (Vasey) Pohl Chapman's bristlegrass    
PACH8 Panicum chapmanii Vasey   0/1
PAGE2 Paspalidium geminatum (Forsk.) Stapf Egyptian panicgrass 1/0
PAGEG Paspalidium geminatum (Forssk.) Stapf var. geminatum Egyptian panicgrass    
PAGE5 Panicum geminatum Forssk.   1/1
PAGEP Paspalidium geminatum (Forssk.) Stapf var. paludivagum (A.S. Hitchc. & Chase) Gould Egyptian panicgrass    
PAPA30 Panicum paludivagum A.S. Hitchc. & Chase   0/1
PASPA2 Paspalum L. crowngrass 1/0
PAAC4 Paspalum acuminatum Raddi brook crowngrass 0/1
PAAL7 Paspalum almum Chase Comb's crowngrass 2/1
PABI3 Paspalum bifidum (Bertol.) Nash pitchfork crowngrass 0/1
PABL Paspalum blodgettii Chapman Blodgett's crowngrass 0/1
PABO3 Paspalum boscianum Flueggé bull crowngrass 0/2
PACA12 Paspalum caespitosum Flueggé blue crowngrass 0/1
PAME4 Paspalum melanospermum Desv.   2/0
PASA Paspalum saugetii Chase   0/1
PACO46 Paspalum commersonii Lam. [excluded] 2/0
PACO14 Paspalum conjugatum Berg. hilograss 1/1
PACO15 Paspalum convexum Humb. & Bonpl. ex Flueggé Latin American crowngrass 2/1
PACO80 Paspalum coryphaeum Trin. Emperor crowngrass 2/0
PADE6 Paspalum densum Poir. dense crowngrass 2/0
PADE24 Paspalum denticulatum Trin. longtom    
PALI7 Paspalum lividum Trin.   1/1
PADI3 Paspalum dilatatum Poir. dallisgrass 3/3
PADI5 Paspalum dissectum (L.) L. mudbank crowngrass 2/2
PADI6 Paspalum distichum L. knotgrass 3/3
PAFI5 Paspalum fimbriatum Kunth Panama crowngrass 2/0
PAFL4 Paspalum floridanum Michx. Florida paspalum 5/3
PADI4 Paspalum difforme Le Conte   0/2
PAGI Paspalum giganteum Baldw. ex Vasey   0/1
PAFL5 Paspalum fluitans (Ell.) Kunth horsetail paspalum 2/2
PAMU9 Paspalum mucronatum Muhl.   0/1
PARE6 Paspalum repens auct. non P.J. Bergius   2/0
PAHA3 Paspalum hartwegianum Fourn. Hartweg's paspalum 2/1
PAHY2 Paspalum hydrophilum Henr. water paspalum 0/1
PAIN5 Paspalum intermedium Munro ex Morong intermediate paspalum 1/0
PALA10 Paspalum laeve Michx. field paspalum 6/3
PACI8 Paspalum circulare Nash   0/2
PAPL7 Paspalum plenipilum Nash   0/2
PALA11 Paspalum langei (Fourn.) Nash rustyseed paspalum 0/1
PALA12 Paspalum laxum Lam. coconut paspalum 0/1
PAMA6 Paspalum malacophyllum Trin. ribbed paspalum 2/0
PAMA16 Paspalum maritimum Trin. coastal sand paspalum 2/0
PAMI4 Paspalum minus Fourn. matted paspalum 0/1
PAMO4 Paspalum monostachyum Vasey gulfdune paspalum 0/1
PANI3 Paspalum nicorae Parodi Brunswickgrass 1/0
PANO2 Paspalum notatum Flueggé bahiagrass 4/1
PANOL3 Paspalum notatum Flueggé var. latiflorum J. Döll bahiagrass 2/0
PANOS Paspalum notatum Flueggé var. saurae Parodi bahiagrass 1/0
PAPA11 Paspalum paniculatum L. arrocillo 2/0
PAPL2 Paspalum pleostachyum Doell tropical paspalum 0/1
PAPL3 Paspalum plicatulum Michx. brownseed paspalum 3/1
PATE13 Paspalum texanum Swallen   0/1
PAPR4 Paspalum praecox Walt. early paspalum 0/1
PALE10 Paspalum lentiferum Lam.   0/1
PAPU5 Paspalum pubiflorum Rupr. ex Fourn. hairyseed paspalum 0/1
PALA16 Paspalum laeviglume Scribn. ex Nash   0/1
PARA6 Paspalum racemosum Lam. Peruvian paspalum 1/0
PASC6 Paspalum scrobiculatum L. kodomillet 1/0
PASE3 Paspalum secans Hitchc. & Chase slender ditch paspalum 2/0
PASE5 Paspalum setaceum Michx. thin paspalum 2/2
PABU3 Paspalum bushii Nash   0/1
PACI6 Paspalum ciliatifolium Michx.   0/2
PADE13 Paspalum debile Michx.   0/2
PALO5 Paspalum longepedunculatum Le Conte   0/2
PAMU8 Paspalum muehlenbergii Nash   0/1
PAPR8 Paspalum propinquum Nash   0/1
PAPS2 Paspalum psammophilum Nash   0/2
PAPU8 Paspalum pubescens Muhl. ex Willd.   0/2
PARI6 Paspalum rigidifolium Nash   0/1
PAST7 Paspalum stramineum Nash   1/2
PASU5 Paspalum supinum Bosc ex Poir.   0/1
PAUN Paspalum unispicatum (Scribn. & Merr.) Nash onespike paspalum 0/1
PAUR2 Paspalum urvillei Steud. Vasey's grass 5/1
PAVA Paspalum vaginatum Sw. seashore paspalum 1/1
PAVI6 Paspalum virgatum L. talquezal 2/1
PAVI7 Paspalum virletii Fourn. Virlet's paspalum 0/1
PASSI Passiflora L. passionflower 3/0
PABI6 Passiflora biflora Lam. twoflower passionflower 1/0
PABI4 Passiflora bilobata Juss. twolobe passionflower 2/0
PACA22 Passiflora caerulea L. bluecrown passionflower 3/0
PACO17 Passiflora coccinea Aubl. scarlet passionflower 2/0
PAED Passiflora edulis Sims purple granadilla 7/0
PAFO2 Passiflora foetida L. fetid passionflower 4/0
PAIN6 Passiflora incarnata L. purple passionflower 12/1
PALA14 Passiflora laurifolia L. golden bellapple 3/0
PALI8 Passiflora ligularis Juss. sweet granadilla 1/0
PALU2 Passiflora lutea L. yellow passionflower 7/2
PAMU4 Passiflora multiflora L. whiteflower passionflower 2/0
PAPR27 Passiflora princeps Lodd. red passion-flower 1/0
PARA19 Passiflora racemosa Brot. passionflower 1/0
PARU3 Passiflora rubra L. dutchman's laudanum 3/0
PASE6 Passiflora sexflora Juss. goatsfoot 3/0
PASU3 Passiflora suberosa L. corkystem passionflower 4/0
PATRM Passiflora tripartita (Juss.) Poir. var. mollissima (Kunth) Holm-Niesen & P.M. Jorg. banana passionflower    
PAMO5 Passiflora mollissima (Kunth) Bailey   1/0
PASA2 Pastinaca sativa L. wild parsnip 6/1
PAULO Paulownia Sieb. & Zucc. paulownia 2/0
PATO2 Paulownia tomentosa (Thunb.) Sieb. & Zucc. ex Steud. princesstree 13/2
PAIM7 Paulownia imperialis Siebold & Zucc.   1/0
PABU5 Pavonia burchellii (DC.) R. A. Dyer    
PAPA47 Pavonia patens (Andrews) Chiov.   1/0
PAFR2 Pavonia fruticosa (P. Mill.) Fawcett & Rendle anamu 1/0
PAGA6 Pavonia gallaensis Ulbr. 1/0
PAHA5 Pavonia hastata Cav. spearleaf swampmallow 1/0
PALA13 Pavonia lasiopetala Scheele Texas swampmallow 1/0
PAPA28 Pavonia paludicola D.H. Nicols. ex Fryxell swampbush 3/0
PASP6 Pavonia spinifex (L.) Cav. gingerbush 4/0
PAXIS Paxistima Raf. paxistima 1/0
PACA Paxistima canbyi Gray Canby's mountain-lover 1/1
PAMY Paxistima myrsinites (Pursh) Raf. Oregon boxleaf 1/0
PEAN Pectis angustifolia Torr. lemonscent 6/1
PEHU4 Pectis humifusa Sw. yerba de San Juan 2/0
PEHE Pectocarya heterocarpa (I.M. Johnston) I.M. Johnston chuckwalla combseed 3/0
PERE Pectocarya recurvata I.M. Johnston curvenut combseed 3/0
PESE Pectocarya setosa Gray moth combseed 2/0
PEDIC Pedicularis L. lousewort 1/0
PEAT Pedicularis attollens Gray little elephantshead 7/0
PEBR Pedicularis bracteosa Benth. bracted lousewort 2/0
PEBRF Pedicularis bracteosa Benth. var. flavida (Pennell) Cronq. towering lousewort 1/0
PECA Pedicularis canadensis L. Canadian lousewort 11/2
PECA2 Pedicularis capitata M.F. Adams capitate lousewort 1/1
PECE Pedicularis centranthera Gray dwarf lousewort 2/0
PECR Pedicularis crenulata Benth. meadow lousewort 4/0
PEDE Pedicularis densiflora Benth. ex Hook. Indian warrior 1/0
PEFU Pedicularis furbishiae S. Wats. Furbish's lousewort 7/1
PEGR2 Pedicularis groenlandica Retz. elephanthead lousewort 12/1
ELGR4 Elephantella groenlandica (Retz.) Rydb.   0/1
PELAL13 Pedicularis labradorica Wirsing var. labradorica Labrador lousewort    
PEEU2 Pedicularis euphrasioides Steph. ex Willd.   0/1
PELA14 Pedicularis lanata Cham. & Schlecht. woolly lousewort 2/0
PELA2 Pedicularis lanceolata Michx. swamp lousewort 0/1
PELA4 Pedicularis lapponica L. Lapland lousewort 0/1
PEOE Pedicularis oederi Vahl ex Hornem. Oeder's lousewort 1/0
PEPA3 Pedicularis parryi Gray Parry's lousewort 2/0
PERA Pedicularis racemosa Dougl. ex Benth. sickletop lousewort 5/0
PESE2 Pedicularis semibarbata Gray pinewoods lousewort 1/0
PESEC Pedicularis semibarbata Gray var. charlestonensis Pennell & Clokey Charleston lousewort 4/0
PESES Pedicularis semibarbata Gray var. semibarbata pinewoods lousewort 2/0
PESU Pedicularis sudetica Willd. sudetic lousewort 1/0
PESY Pedicularis sylvatica L. lousewort 1/0
PEVE Pedicularis verticillata L. whorled lousewort 1/0
PETI Pedilanthus tithymaloides (L.) Poit. redbird flower 8/0
PEIN16 Pedinophyllum interruptum (Nees) Kaal. 3/0
PEBR2 Pediocactus bradyi L. Benson Brady's hedgehog cactus 3/0
PEDE17 Pediocactus despainii Welsh & Goodrich Despain's pincushion cactus 1/0
PEKN2 Pediocactus knowltonii L. Benson Knowlton's miniature cactus 5/0
PESI Pediocactus simpsonii (Engelm.) Britt. & Rose Simpson hedgehog cactus 6/1
PESIR Pediocactus simpsonii (Engelm.) Britt. & Rose var. robustior (Coult.) L. Benson snowball cactus 1/0
PEAR6 Pediomelum argophyllum (Pursh) J. Grimes silverleaf Indian breadroot 1/0
PSAR2 Psoralea argophylla Pursh   0/1
PSCO5 Psoralea collina Rydb.   0/1
PECA24 Pediomelum castoreum (S. Wats.) Rydb. beaver Indian breadroot    
PSCA4 Psoralea castorea S. Wats.   2/0
PECU3 Pediomelum cuspidatum (Pursh) Rydb. largebract Indian breadroot    
PSCU Psoralea cuspidata Pursh   0/1
PEDI9 Pediomelum digitatum (Nutt. ex Torr. & Gray) Isely palmleaf Indian breadroot    
PSDI Psoralea digitata Nutt. ex Torr. & Gray   0/1
PEES Pediomelum esculentum (Pursh) Rydb. large Indian breadroot    
PSES Psoralea esculenta Pursh   1/1
PEHYH Pediomelum hypogaeum (Nutt. ex Torr. & Gray) Rydb. var. hypogaeum subterranean Indian breadroot    
PSHY Psoralea hypogaea Nutt. ex Torr. & Gray   0/1
PELI10 Pediomelum linearifolium (Torr. & Gray) J. Grimes narrowleaf Indian breadroot    
PSLI Psoralea linearifolia Torr. & Gray   0/1
PEPE27 Pediomelum pentaphyllum (L.) Rydb. small Indian breadroot    
PSPE4 Psoralea pentaphylla L.   1/0
PEHA Peganum harmala L. harmal peganum 4/0
PELAR2 Pelargonium L'Hér. ex Ait. geranium 3/0
PERA14 Pelargonium radens H.E. Moore rasp-leaf pelargonium    
PERA13 Pelargonium radula (Cav.) L'Her   2/0
PEVI8 Pelargonium vitifolium (L.) L'Hér. ex Ait. grapeleaf geranium 1/0
PEZO Pelargonium zonale (L.) L'Hér. ex Aiton horseshoe geranium 1/0
PEAN2 Pellaea andromedifolia (Kaulfuss) Fée coffee cliffbrake 2/0
PEAT2 Pellaea atropurpurea (L.) Link purple cliffbrake 2/1
PEBR4 Pellaea breweri D.C. Eat. Brewer's cliffbrake 5/0
PEGL Pellaea glabella Mett. ex Kuhn smooth cliffbrake 1/0
PEIN Pellaea intermedia Mett. ex Kuhn intermediate cliffbrake 3/0
PEMUM Pellaea mucronata (D.C. Eat.) D.C. Eat. ssp. mucronata birdfoot cliffbrake    
PELO8 Pellaea longimucronata Hook.   1/0
PEOV Pellaea ovata (Desv.) Weatherby ovateleaf cliffbrake 6/0
PETR3 Pellaea truncata Goodding spiny cliffbrake 4/0
PEWR Pellaea wrightiana Hook. Wright's cliffbrake 3/0
PEEN Pellia endiviifolia (Dicks.) Dumort. 4/0
PEEP3 Pellia epiphylla (L.) Corda 3/0
PENE14 Pellia neesiana (Gottsche) Limpr. 2/0
PEVI Peltandra virginica (L.) Schott green arrow arum 6/2
PEPT3 Peltophorum pterocarpum (DC.) Backer ex K. Heyne peltophorum 1/0
PEIN13 Peltophorum inerme (Roxb.) Llanos ex Fernandez-Vill.   1/0
PELO3 Pennellia longifolia (Benth.) Rollins longleaf mock thelypody 2/0
PENNI Pennisetum L.C. Rich. ex Pers. fountaingrass 3/0
PEAL Pennisetum alopecuroides (L.) Spreng. Chinese fountaingrass 2/0
PECI Pennisetum ciliare (L.) Link buffelgrass 1/0
PECIC Pennisetum ciliare (L.) Link var. ciliare (L.) Link [superfluous autonym]   1/0
PECL2 Pennisetum clandestinum Hochst. ex Chiov. kikuyugrass 1/1
PECO38 Pennisetum complanatum (Nees) Hemsl. Nicaraguan fountaingrass 2/0
PEFL18 Pennisetum flaccidum Griseb. flaccidgrass 1/0
PEGL2 Pennisetum glaucum (L.) R. Br. pearl millet 0/1
PETY Pennisetum typhoides auct. non (Burm.) Stapf & C.E. Hubbard   1/0
PELA5 Pennisetum latifolium Spreng. Uruguayan fountaingrass 2/0
PENE4 Pennisetum nervosum (Nees) Trin. bentspike fountaingrass 1/1
PEPOS2 Pennisetum polystachion (L.) J.A. Schultes ssp. setosum (Sw.) Brunken mission grass    
PESE4 Pennisetum setosum (Sw.) L.C. Rich.   2/1
PEPU2 Pennisetum purpureum Schumacher elephant grass 1/0
PESE3 Pennisetum setaceum (Forsk.) Chiov. crimson fountaingrass 0/1
PEVI2 Pennisetum villosum R. Br. ex Fresen. feathertop 1/1
PENST Penstemon Schmidel beardtongue 3/0
PEAB Penstemon abietinus Pennell firleaf beardtongue 1/0
PEAC3 Penstemon acaulis L.O. Williams stemless beardtongue 2/0
PEAC Penstemon acuminatus Dougl. ex Lindl. sharpleaf penstemon 7/1
PEACL Penstemon acuminatus Dougl. ex Lindl. var. latebracteatus N. Holmgren sharpleaf penstemon 4/0
PEAL10 Penstemon alamosensis Pennell & Nisbet Los Alamos beardtongue 2/0
PEAL2 Penstemon albidus Nutt. white penstemon 1/1
PEAM Penstemon ambiguus Torr. gilia beardtongue 4/0
PEAML2 Penstemon ambiguus Torr. var. laevissimus (Keck) N. Holmgren pink plains beardtongue 3/0
PEAN3 Penstemon anguineus Eastw. Siskiyou beardtongue 9/0
PEAN4 Penstemon angustifolius Nutt. ex Pursh broadbeard beardtongue 1/1
PEAR3 Penstemon arenarius Greene Nevada sanddune beardtongue 7/0
PEAR4 Penstemon arkansanus Pennell Arkansas beardtongue 1/0
PEATA2 Penstemon attenuatus Dougl. ex Lindl. var. attenuatus sulphur penstemon 1/0
PEAU2 Penstemon auriberbis Pennell Colorado beardtongue 3/0
PEAU Penstemon australis Small Eustis Lake beardtongue 1/0
PEAZ Penstemon azureus Benth. azure penstemon 4/0
PEAZA2 Penstemon azureus Benth. ssp. azureus azure penstemon 2/0
PEPA11 Penstemon parvulus (Gray) Krautter   3/0
PEBA Penstemon baccharifolius Hook. baccharisleaf beardtongue 3/0
PEBA2 Penstemon barbatus (Cav.) Roth beardlip penstemon 9/0
PEBA6 Penstemon barnebyi N. Holmgren White River Valley beardtongue 2/0
PEBIB2 Penstemon bicolor (Brandeg.) Clokey & Keck ssp. bicolor pinto beardtongue 3/0
PEBIR Penstemon bicolor (Brandeg.) Clokey & Keck ssp. roseus Clokey & Keck pinto beardtongue 7/0
PEBR8 Penstemon bracteatus Keck Red Canyon beardtongue 1/0
PEBR9 Penstemon breviculus (Keck) Nisbet & R.C. Jackson shortstem beardtongue 5/0
PECA3 Penstemon caesius Gray San Bernardino beardtongue 2/0
PECA4 Penstemon caespitosus Nutt. ex Gray mat penstemon 1/0
PECA5 Penstemon calcareus Brandeg. limestone beardtongue 5/0
PECA7 Penstemon calycosus Small longsepal beardtongue 0/1
PECA8 Penstemon canescens (Britt.) Britt. eastern gray beardtongue 1/1
PECA15 Penstemon cardinalis Woot. & Standl. cardinal beardtongue 4/0
PECAR Penstemon cardinalis Woot. & Standl. ssp. regalis (A. Nels.) Nisbet & R.C. Jackson cardinal beardtongue 1/0
PECE2 Penstemon centranthifolius Benth. scarlet bugler 4/0
PECLC4 Penstemon clevelandii Gray ssp. connatus (Munz & Johnston) Keck San Jacinto beardtongue 2/0
PECL5 Penstemon clutei A. Nels. Sunset Crater beardtongue 3/0
PECO4 Penstemon cobaea Nutt. cobaea beardtongue 5/1
PECO5 Penstemon comarrhenus A. Gray dusty beardtongue 4/0
PECO7 Penstemon confusus M.E. Jones Owens Valley beardtongue 7/0
PECY2 Penstemon cyananthus Hook. Wasatch beardtongue 1/0
PECY3 Penstemon cyaneus Pennell blue penstemon 2/0
PEDA2 Penstemon davidsonii Greene Davidson's penstemon 3/0
PEDAD Penstemon davidsonii Greene var. davidsonii Davidson's penstemon 7/0
PEDAM2 Penstemon davidsonii Greene var. menziesii (Keck) Cronq. Menzies' penstemon 2/0
PEDAP Penstemon davidsonii Greene var. praeteritus Cronq. timberline beardtongue 2/0
PEDE4 Penstemon deustus Dougl. ex Lindl. scabland penstemon 4/0
PEDEP Penstemon deustus Dougl. ex Lindl. var. pedicellatus M.E. Jones scabland penstemon 4/0
PEDI Penstemon digitalis Nutt. ex Sims talus slope penstemon 8/2
PEDO3 Penstemon dolius M.E. Jones ex Pennell Jones' beardtongue 1/0
PEDOD2 Penstemon dolius M.E. Jones ex Pennell var. dolius Jones' beardtongue 4/0
PEEA Penstemon eatonii Gray firecracker penstemon 5/0
PEEAE2 Penstemon eatonii Gray ssp. eatonii firecracker penstemon 4/0
PEEAU Penstemon eatonii Gray ssp. undosus (M.E. Jones) Keck firecracker penstemon 2/0
PEER Penstemon eriantherus Pursh fuzzytongue penstemon 0/1
PEERC Penstemon eriantherus Pursh var. cleburnei (M.E. Jones) Dorn Cleburn's penstemon    
PECL4 Penstemon cleburnei M.E. Jones   1/0
PEERR Penstemon eriantherus Pursh var. redactus Pennell & Keck longsac penstemon 2/0
PEEU Penstemon euglaucus English glaucous beardtongue 1/0
PEFE Penstemon fendleri Torr. & Gray Fendler's penstemon 7/0
PEFL3 Penstemon floridus Brandeg. Panamint beardtongue 7/0
PEFLF Penstemon floridus Brandeg. var. floridus Panamint beardtongue 7/0
PEFRF3 Penstemon fruticiformis Coville ssp. fruticiformis Death Valley beardtongue 3/0
PEFR3 Penstemon fruticosus (Pursh) Greene bush penstemon 1/0
PEGE3 Penstemon gentianoides (Kunth) Poir. gentian beardtongue 1/0
PEGL3 Penstemon glaber Pursh sawsepal penstemon 1/1
PEGR4 Penstemon gracilentus Gray slender penstemon 5/0
PEGR5 Penstemon gracilis Nutt. lilac penstemon 0/1
PEGR6 Penstemon grahamii Keck Uinta Basin beardtongue 2/0
PEGR7 Penstemon grandiflorus Nutt. large beardtongue 3/1
PEGR20 Penstemon griffinii A. Nels. Griffin's beardtongue 4/0
PEGR8 Penstemon grinnellii Eastw. Grinnell's beardtongue 9/0
PEGU Penstemon guadalupensis Heller Guadalupe beardtongue 1/0
PEHA10 Penstemon harbourii Gray Harbour's beardtongue 1/0
PEHA2 Penstemon havardii Gray Big Bend beardtongue 3/0
PEHA12 Penstemon haydenii S. Wats. blowout beardtongue 0/1
PEHEH3 Penstemon heterodoxus Gray var. heterodoxus Sierra beardtongue 5/0
PEHE3 Penstemon heterophyllus Lindl. bunchleaf penstemon 1/1
PEHI Penstemon hirsutus (L.) Willd. hairy beardtongue 8/1
PEHU Penstemon humilis Nutt. ex Gray low beardtongue 1/0
PEHUH Penstemon humilis Nutt. ex Gray ssp. humilis low beardtongue 4/0
PEIM2 Penstemon immanifestus N. Holmgren Steptoe Valley beardtongue 2/0
PEIN3 Penstemon incertus Brandeg. Mojave beardtongue 7/0
PEJA Penstemon jamesii Benth. James' beardtongue 4/0
PEJA2 Penstemon janishiae N. Holmgren Antelope Valley beardtongue 15/0
PELAL6 Penstemon laetus Gray ssp. laetus mountain blue penstemon 2/0
PELAS Penstemon laetus Gray ssp. sagittatus Keck mountain blue penstemon 7/0
PELA8 Penstemon laevigatus Ait. eastern smooth beardtongue    
PEPE17 Penstemon penstemon (L.) Britt.   0/1
PELA15 Penstemon laevis Pennell southwestern beardtongue 5/0
PELA10 Penstemon laxiflorus Pennell nodding beardtongue 3/0
PELE7 Penstemon leiophyllus Pennell smoothleaf beardtongue 2/0
PELEF Penstemon leiophyllus Pennell var. francisci-pennellii (Crosswhite) N. Holmgren smoothleaf beardtongue 2/0
PELEK Penstemon leiophyllus Pennell var. keckii (Clokey) N. Holmgren Keck's beardtongue 1/0
PELE8 Penstemon lemhiensis (Keck) Keck & Cronq. Lemhi penstemon 1/0
PELE2 Penstemon lentus Pennell handsome beardtongue 2/0
PELI2 Penstemon linarioides Gray toadflax penstemon 6/0
PELIC Penstemon linarioides Gray ssp. coloradoensis (A. Nels.) Keck toadflax penstemon 2/0
PEMI3 Penstemon miser Gray Malheur penstemon 4/0
PEMO Penstemon monoensis Heller Mono penstemon 5/0
PEMO4 Penstemon montanus Greene cordroot beardtongue 2/0
PEMU2 Penstemon murrayanus Hook. scarlet beardtongue 1/0
PENA3 Penstemon nanus Keck dwarf beardtongue 3/0
PENE6 Penstemon neomexicanus Woot. & Standl. New Mexico beardtongue 1/0
PENE3 Penstemon newberryi Gray mountain pride 10/0
PENEB Penstemon newberryi Gray ssp. berryi (Eastw.) Keck Berry's penstemon 4/0
PENEN Penstemon newberryi Gray ssp. newberryi mountain pride 7/0
PENES Penstemon newberryi Gray ssp. sonomensis (Greene) Keck Sonoma penstemon    
PENES3 Penstemon newberryi Gray var. sonomensis (Greene) Jepson   1/0
PEOL Penstemon oliganthus Woot. & Standl. Apache beardtongue 2/0
PEOS Penstemon osterhoutii Pennell Osterhout's beardtongue 4/0
PEOV2 Penstemon ovatus Dougl. ex Hook. eggleaf beardtongue 2/0
PEPA6 Penstemon pachyphyllus Gray ex Rydb. thickleaf beardtongue 7/0
PEPAC2 Penstemon pachyphyllus Gray ex Rydb. var. congestus (M.E. Jones) N. Holmgren thickleaf beardtongue 3/0
PEPA23 Penstemon pahutensis N. Holmgren Paiute beardtongue 7/0
PEPA7 Penstemon pallidus Small pale beardtongue 0/1
PEBR10 Penstemon brevisepalus Pennell   1/0
PEPA8 Penstemon palmeri Gray Palmer's penstemon 11/0
PEPAP9 Penstemon palmeri Gray var. palmeri Palmer's penstemon 4/0
PEPA24 Penstemon parryi (Gray) Gray Parry's beardtongue 6/0
PEPA27 Penstemon patens (M.E. Jones) N. Holmgren Lone Pine beardtongue 8/0
PEPA30 Penstemon paysoniorum Keck Payson's beardtongue 3/0
PEPE12 Penstemon perpulcher A. Nelson Minidoka beardtongue 5/0
PEPI3 Penstemon pinifolius Greene pineneedle beardtongue 8/0
PEPR6 Penstemon pratensis Greene western whiteflower beardtongue 1/0
PEPR2 Penstemon procerus Dougl. ex Graham littleflower penstemon 7/0
PEPRB2 Penstemon procerus Dougl. ex Graham var. brachyanthus (Pennell) Cronq. pincushion beardtongue 2/0
PEPRM2 Penstemon procerus Dougl. ex Graham var. modestus (Greene) N. Holmgren pincushion beardtongue 1/0
PEPRT Penstemon procerus Dougl. ex Graham var. tolmiei (Hook.) Cronq. Tolmie's penstemon 1/0
PEPS3 Penstemon pseudoputus (Crosswhite) N. Holmgren Kaibab Plateau beardtongue 4/0
PEPS Penstemon pseudospectabilis M.E. Jones desert penstemon 7/0
PEPU11 Penstemon pudicus Reveal & Beatley Kawich Range beardtongue 3/0
PEPU4 Penstemon purpusii Brandeg. Snow Mountain beardtongue 2/0
PERA2 Penstemon radicosus A. Nels. matroot penstemon 2/0
PERI Penstemon richardsonii Dougl. ex Lindl. cutleaf beardtongue 5/0
PERO12 Penstemon roezlii Regel Roezl's penstemon 4/0
PERO10 Penstemon rostriflorus Kellogg Bridge penstemon 4/0
PEBR7 Penstemon bridgesii Gray   6/0
PERU5 Penstemon rubicundus Keck Wassuk Range beardtongue 6/0
PERU Penstemon rupicola (Piper) T.J. Howell cliff beardtongue 9/0
PERY Penstemon rydbergii A. Nels. Rydberg's penstemon 7/0
PERYO Penstemon rydbergii A. Nels. var. oreocharis (Greene) N. Holmgren herbaceous penstemon 3/0
PERYR Penstemon rydbergii A. Nels. var. rydbergii swollen penstemon 2/0
PESC2 Penstemon scapoides Keck pinyon beardtongue 8/0
PESE11 Penstemon secundiflorus Benth. sidebells penstemon 2/0
PESE5 Penstemon serrulatus Menzies ex Sm. serrulate penstemon 3/0
PESM Penstemon smallii Heller Small's beardtongue 3/0
PESP Penstemon speciosus Dougl. ex Lindl. royal penstemon 17/0
PESP3 Penstemon spectabilis Thurb. ex Gray showy penstemon 8/0
PEST2 Penstemon strictus Benth. Rocky Mountain penstemon 12/0
PESU2 Penstemon subglaber Rydb. smooth penstemon 1/0
PESU7 Penstemon subulatus M.E. Jones hackberry beardtongue 1/0
PESU8 Penstemon superbus A. Nels. superb beardtongue 7/0
PETE4 Penstemon tenuiflorus Pennell eastern whiteflower beardtongue 1/0
PETE3 Penstemon tenuis Small sharpsepal beardtongue 4/0
PETH2 Penstemon thompsoniae (Gray) Rydb. Thompson's beardtongue 3/0
PETH3 Penstemon thurberi Torr. Thurber's penstemon 1/0
PETR2 Penstemon triflorus Heller Heller's beardtongue 4/0
PETU Penstemon tubiflorus Nutt. white wand beardtongue 4/1
PEUN Penstemon unilateralis Rydb. oneside penstemon 2/0
PEUT Penstemon utahensis Eastw. Utah penstemon 12/0
PEVE2 Penstemon venustus Dougl. ex Lindl. Venus penstemon 1/0
PEVI3 Penstemon virens Pennell ex Rydb. Front Range beardtongue 3/0
PEVI4 Penstemon virgatus Gray upright blue beardtongue 2/0
PEWA8 Penstemon wardii Gray Ward's beardtongue 1/0
PEWH Penstemon whippleanus Gray Whipple's penstemon 6/0
PEBE Pentachaeta bellidiflora Greene whiteray pygmydaisy 2/0
PESE10 Pentaglottis sempervirens (L.) Tausch ex Bailey evergreen bugloss 2/0
PETR7 Pentagramma triangularis (Kaulfuss) Yatskievych, Windham & Wollenweber goldback fern 2/0
PELU3 Pentalinon luteum (L.) B.F. Hansen & Wunderlin hammock viper's-tail 2/0
PEOU Pentanisia ouranogyne S. Moore 1/0
PELA19 Pentas lanceolata (Forssk.) Deflers Egyptian starcluster 6/0
PESE6 Penthorum sedoides L. ditch stonecrop 2/2
PEHU3 Peperomia humilis A. Dietr. Polynesian peperomia 1/0
PEMA5 Peperomia magnoliifolia (Jacq.) A. Dietr. spoonleaf peperomia 1/0
PEMY Peperomia myrtifolia (Vahl) A. Dietr. myrtleleaf peperomia 1/0
PERA4 Peraphyllum ramosissimum Nutt. 5/2
PEAC2 Pereskia aculeata P. Mill. Barbados shrub 7/0
PEGR14 Pereskia grandifolia Haw. rose cactus 5/0
PEDA4 Pergularia daemia (Forsskal) Chiov. pergularia 2/0
PECA10 Pericome caudata Gray mountain tail-leaf 3/0
PEMO13 Pericopsis mooniana Thw. 1/0
PEAM2 Perideridia americana (Nutt. ex DC.) Reichenb. eastern yampah    
EUAM4 Eulophus americanus Nutt. ex DC.   0/1
PEBO2 Perideridia bolanderi (Gray) A. Nels. & J.F. Macbr. Bolander's yampah 3/0
PELE5 Perideridia lemmonii (Coult. & Rose) Chuang & Constance Lemmon's yampah 2/0
PEPA21 Perideridia parishii (Coult. & Rose) A. Nels. & J.F. Macbr. Parish's yampah 1/1
PEFR4 Perilla frutescens (L.) Britt. beefsteakplant 3/2
PERIT Perityle Benth. rockdaisy 1/0
PEEM Perityle emoryi Torr. Emory's rockdaisy 7/0
PETE11 Perityle tenella (M.E. Jones) J.F. Macbr. Springdale rockdaisy    
LAPA9 Laphamia palmeri Gray   3/0
PEAT10 Perovskia atriplicifolia Benth. Russian sage 4/0
PEAM3 Persea americana P. Mill. avocado 5/0
PEBO Persea borbonia (L.) Spreng. redbay 5/2
PEPA37 Persea palustris (Raf.) Sarg. swamp bay 1/0
PEPU19 Persea pubescens (Pursh) Sarg.   0/1
PETH4 Petalonyx thurberi Gray Thurber's sandpaper plant 4/0
PEFRP Petasites frigidus (L.) Fries var. palmatus (Ait.) Cronq. arctic sweet coltsfoot 5/0
PEPA31 Petasites palmatus (Ait.) Gray   4/1
PEFRS5 Petasites frigidus (L.) Fries var. sagittatus (Banks ex Pursh) Cherniawsky arrowleaf sweet coltsfoot    
PESA5 Petasites sagittatus (Banks ex Pursh) Gray   1/2
PEFRV Petasites frigidus (L.) Fries var. vitifolius (Greene) Cherniawsky    
PETR9 Petasites trigonophylla Greene   0/1
PEHY Petasites hybridus (L.) P.G. Gaertn., B. Mey. & Scherb. pestilence wort    
PEVU3 Petasites vulgaris Hill   0/1
PETH5 Peteria thompsoniae S. Watson Thompson's peteria 4/0
PEPU7 Petradoria pumila (Nutt.) Greene grassy rockgoldenrod 1/0
PEVO Petrea volubilis L. queen's-wreath 3/0
PECA12 Petrophyton caespitosum (Nutt.) Rydb. mat rockspirea 14/0
PEPR4 Petrorhagia prolifera (L.) P.W. Ball & Heywood childing pink    
DIPR3 Dianthus prolifer L.   0/1
PESA9 Petrorhagia saxifraga (L.) Link saxifrage pink 0/1
PECR2 Petroselinum crispum (P. Mill.) Nyman ex A.W. Hill parsley    
APPE Apium petroselinum L.   0/1
PETUN Petunia Juss. petunia 1/0
PEAX Petunia axillaris (Lam.) B.S.P. large white petunia 0/1
PEVI6 Petunia violacea auct. non Juss. [misapplied]   0/1
PEOS2 Peucedanum ostruthium (L.) W.D.J. Koch masterwort    
IMOS Imperatoria ostruthia L.   0/1
PESC4 Peucephyllum schottii Gray Schott's pygmycedar 4/0
PHACE Phacelia Juss. phacelia 5/0
PHAD Phacelia adenophora J.T. Howell glandular yellow phacelia 4/0
PHAL9 Phacelia alba Rydb. white phacelia    
PHNEA Phacelia neomexicana Thurb. ex Torr. var. alba (Rydb.) Brand   1/0
PHAR13 Phacelia arizonica Gray Arizona phacelia 4/0
PHBI Phacelia bicolor Torr. ex S. Wats. twocolor phacelia 3/0
PHBI2 Phacelia bipinnatifida Michx. fernleaf phacelia 4/1
PHBO Phacelia bolanderi Gray Bolander's phacelia 1/0
PHBR Phacelia brachyloba (Benth.) Gray shortlobe phacelia 1/0
PHCA Phacelia californica Cham. California phacelia 8/0
PHCA2 Phacelia calthifolia Brand calthaleaf phacelia 2/0
PHCA3 Phacelia campanularia Gray desertbells 5/0
PHCI Phacelia cicutaria Greene caterpillar phacelia 2/0
PHCI2 Phacelia ciliata Benth. Great Valley phacelia 1/0
PHCO Phacelia coerulea Greene skyblue phacelia 2/0
PHCO2 Phacelia congesta Hook. caterpillars 3/0
PHCO3 Phacelia corymbosa Jepson serpentine phacelia 1/0
PHCO30 Phacelia covillei S. Wats. Coville's phacelia 0/1
PHCR Phacelia crenulata Torr. ex S. Wats. cleftleaf wildheliotrope 16/0
PHCRA2 Phacelia crenulata Torr. ex S. Wats. var. ambigua (M.E. Jones) J.F. Macbr. purplestem phacelia    
PHAM8 Phacelia ambigua M.E. Jones   3/0
PHCRC Phacelia crenulata Torr. ex S. Wats. var. corrugata (A. Nels.) Brand cleftleaf wildheiotrope    
PHCO21 Phacelia corrugata A. Nels.   1/0
PHDA Phacelia dalesiana J.T. Howell Scott Mountain phacelia 2/0
PHDI Phacelia distans Benth. distant phacelia 9/0
PHDI2 Phacelia divaricata (Benth.) Gray divaricate phacelia 1/0
PHDO Phacelia douglasii (Benth.) Torr. Douglas' phacelia 3/0
PHDU Phacelia dubia (L.) Trel. smallflower phacelia 1/1
PHFI2 Phacelia fimbriata Michx. fringed phacelia 1/1
PHFR Phacelia franklinii (R. Br.) Gray Franklin's phacelia 0/1
PHFR2 Phacelia fremontii Torr. Fremont's phacelia 9/0
PHGL12 Phacelia glaberrima (Torr. ex S. Wats.) J.T. Howell southwestern phacelia 3/0
PHGL3 Phacelia glandulosa Nutt. glandular phacelia 3/0
PHGR Phacelia grandiflora (Benth.) Gray largeflower phacelia 3/0
PHGY Phacelia gymnoclada Torr. ex S. Wats. nakedstem phacelia 4/0
PHHA Phacelia hastata Dougl. ex Lehm. silverleaf phacelia 2/0
PHHAC3 Phacelia hastata Dougl. ex Lehm. var. compacta (Brand) Cronq. compact phacelia 4/0
PHHAH Phacelia hastata Dougl. ex Lehm. var. hastata silverleaf phacelia    
PHLE16 Phacelia leucophylla Torr.   0/1
PHHE2 Phacelia heterophylla Pursh varileaf phacelia 6/0
PHHEV Phacelia heterophylla Pursh ssp. virgata (Greene) Heckard varileaf phacelia 2/0
PHHI Phacelia hirsuta Nutt. fuzzy phacelia 0/1
PHHU Phacelia humilis Torr. & Gray low phacelia 4/0
PHIN13 Phacelia insularis Munz coast phacelia 2/0
PHIN Phacelia integrifolia Torr. gypsum phacelia 9/1
PHIV Phacelia ivesiana Torr. Ives' phacelia 2/0
PHLE7 Phacelia leptosepala Rydb. narrowsepal phacelia 1/0
PHLI Phacelia linearis (Pursh) Holz. threadleaf phacelia 6/0
PHLUL2 Phacelia lutea (Hook. & Arn.) J.T. Howell var. lutea yellow phacelia 2/0
PHLY2 Phacelia lyallii (Gray) Rydb. alpine phacelia 1/0
PHLY Phacelia lyonii (Gray) Rydb. Lyon's phacelia 2/0
PHMA9 Phacelia maculata Wood spotted phacelia 1/0
PHMI Phacelia minor (Harvey) Thellung ex F. Zimmerman wild canterbury bells 4/0
PHMU Phacelia mustelina Coville weasel phacelia 6/0
PHPA2 Phacelia parishii Gray Parish's phacelia 5/0
PHPA3 Phacelia parryi Torr. Parry's phacelia 1/0
PHPE3 Phacelia perityloides Coville Panamint phacelia 3/0
PHPO Phacelia popei Torr. & Gray Pope's phacelia 1/0
PHPR2 Phacelia procera Gray tall phacelia 2/0
PHPU Phacelia pulchella Gray beautiful phacelia 3/0
PHPU3 Phacelia purshii Buckl. Miami mist 2/1
PHRA Phacelia racemosa (Kellogg) Brandeg. racemose phacelia 3/0
PHRA2 Phacelia ramosissima Dougl. ex Lehm. branching phacelia 2/0
PHRAE Phacelia ramosissima Dougl. ex Lehm. var. eremophila (Greene) J.F. Macbr. branching phacelia 2/0
PHRA3 Phacelia ranunculacea (Nutt.) Constance oceanblue phacelia 1/1
PHRO2 Phacelia rotundifolia Torr. ex S. Wats. roundleaf phacelia 5/0
PHSA Phacelia saxicola Gray stonecrop phacelia 1/0
PHSE Phacelia sericea (Graham) Gray silky phacelia 6/0
PHSEC Phacelia sericea (Graham) Gray ssp. ciliosa (Rydb.) Gillett silky phacelia 2/0
PHSES Phacelia sericea (Graham) Gray ssp. sericea silky phacelia 3/0
PHST Phacelia strictiflora (Engelm. & Gray) Gray prairie phacelia 1/0
PHTA Phacelia tanacetifolia Benth. lacy phacelia 5/0
PHVA2 Phacelia vallis-mortae J. Voss Death Valley phacelia 5/0
PHCA38 Phaeoceros carolinianus (Michx.) Prosk. Carolina phaeoceros 3/0
PHAEO7 Phaeophyscia Moberg wreath lichen 2/0
PHALA10 Phalaenopsis Blume moth orchid 4/0
PHAN2 Phalaris angusta Nees ex Trin. timothy canarygrass 0/1
PHAQ Phalaris aquatica L. bulbous canarygrass 1/0
PHTUS Phalaris tuberosa L. var. stenoptera (Hack.) A.S. Hitchc.   2/1
PHAR3 Phalaris arundinacea L. reed canarygrass 3/3
PHBR3 Phalaris brachystachys Link shortspike canarygrass 0/1
PHCA4 Phalaris californica Hook. & Arn. California canarygrass 0/1
PHCA5 Phalaris canariensis L. annual canarygrass 1/2
PHCA6 Phalaris caroliniana Walt. Carolina canarygrass 2/3
PHCO40 Phalaris coerulescens Desf. sunolgrass 2/0
PHLE3 Phalaris lemmonii Vasey Lemmon's canarygrass 0/1
PHMI3 Phalaris minor Retz. littleseed canarygrass 1/1
PHPA5 Phalaris paradoxa L. hood canarygrass 0/1
PHPAP Phalaris paradoxa L. var. praemorsa (Lam.) Coss. & Durieu   2/0
PHAU2 Phanerophlebia auriculata Underwood eared veinfern 2/0
PHGY2 Phanopyrum gymnocarpon (Ell.) Nash savannah-panicgrass 2/1
PAGY2 Panicum gymnocarpon Ell.   0/1
PHLA21 Pharus lappulaceus Aubl. Cape Francais stalkgrass    
PHGL8 Pharus glaber Kunth   2/0
PHLA2 Pharus latifolius L. broad stalkgrass 1/0
PHPA6 Pharus parvifolius Nash creeping stalkgrass 0/1
PHCU7 Phascum cuspidatum Hedw. toothed phascum moss 6/0
PHFL8 Phascum floerkeanum Web. & Mohr Floerkea's phascum moss 6/0
PHAC Phaseolus acutifolius Gray tepary bean 1/0
PHCO6 Phaseolus coccineus L. scarlet runner 1/0
PHFI3 Phaseolus filiformis Benth. slimjim bean 1/0
PHLU2 Phaseolus lunatus L. sieva bean 1/0
PHMA17 Phaseolus maculatus Scheele spotted bean    
PHME Phaseolus metcalfei Woot. & Standl.   1/0
PHPEG Phaseolus pedicellatus Benth. var. grayanus (Woot. & Standl.) A. Delgado ex Isely Gray's bean    
PHGR4 Phaseolus grayanus Woot. & Standl.   1/0
PHPO2 Phaseolus polystachios (L.) B.S.P. thicket bean 4/1
PHRI Phaseolus ritensis M.E. Jones Santa Rita Mountain bean 1/0
PHVU Phaseolus vulgaris L. kidney bean 1/0
PHSP2 Phaulothamnus spinescens Gray devilqueen 1/0
PHCO24 Phegopteris connectilis (Michx.) Watt long beechfern    
DRPH2 Dryopteris phegopteris (L.) C. Christens.   0/1
PHHE11 Phegopteris hexagonoptera (Michx.) Fée broad beechfern 1/0
DRHE3 Dryopteris hexagonoptera (Michx.) C. Christens.   0/1
PHELL Phellodendron Rupr. corktree 2/0
PHAM2 Phellodendron amurense Rupr. Amur corktree 0/1
PHBR16 Phemeranthus brevifolius (Torr.) Hershkovitz pygmy fameflower    
TABR Talinum brevifolium Torr.   5/0
PHCA47 Phemeranthus calcaricus (Ware) Kiger limestone fameflower    
TACA14 Talinum calcaricum Ware   2/0
PHCA48 Phemeranthus calycinus (Engelm.) Kiger largeflower fameflower    
TACA Talinum calycinum Engelm.   0/1
PHPA29 Phemeranthus parviflorus (Nutt.) Kiger sunbright 1/0
TAPA3 Talinum parviflorum Nutt.   1/1
PHRU8 Phemeranthus rugospermus (Holz.) Kiger prairie fameflower    
TARU Talinum rugospermum Holz.   2/1
PHTE18 Phemeranthus teretifolius (Pursh) Raf. quill fameflower    
TATE Talinum teretifolium Pursh   3/1
PHCA44 Philadelphus caucasicus Koehne golden mock orange 1/0
PHCO7 Philadelphus coronarius L. sweet mock orange 1/1
PHHI2 Philadelphus hirsutus Nutt. streambank mock orange 1/0
PHIN5 Philadelphus inodorus L. scentless mock orange 2/1
PHGR18 Philadelphus grandiflorus Willd.   0/1
PHLE4 Philadelphus lewisii Pursh Lewis' mock orange 4/1
PHMI4 Philadelphus microphyllus Gray littleleaf mock orange 8/0
PHTO7 Philadelphus tomentosus Royle fuzzy mock orange 1/0
PHILO Philodendron Schott philodendron 4/0
PHCA33 Philonotis capillaris Lindb. in Hartm. philonotis moss    
PHAR18 Philonotis arnellii Husn.   4/0
PHFO6 Philonotis fontana (Hedw.) Brid. philonotis moss 5/0
PHFOC Philonotis fontana (Hedw.) Brid. var. caespitosa (Jur.) Schimp. low philonotis moss    
PHCA34 Philonotis caespitosa Jur.   4/0
PHFOP Philonotis fontana (Hedw.) Brid. var. pumila (Turn.) Brid. philonotis moss    
PHTO5 Philonotis tomentella Mol. in Lor.   5/0
PHMA22 Philonotis marchica (Hedw.) Brid. philonotis moss 2/0
PHLA28 Philydrum lanuginosum Banks ex Gaertn. 3/0
PHAL Phippsia algida (C.J. Phipps) R. Br. icegrass 2/2
PHAL2 Phleum alpinum L. alpine timothy 3/2
PHCO9 Phleum commutatum Gaudin   1/0
PHAR4 Phleum arenarium L. sand timothy 2/0
PHPA8 Phleum paniculatum Huds. British timothy 2/0
PHPR3 Phleum pratense L. timothy 6/2
PHNO4 Phleum nodosum L.   2/0
PHPRN Phleum pratense L. var. nodosum (L.) Huds.   1/0
PHSU2 Phleum subulatum (Savi) Asch. & Graebn. Italian timothy 3/0
PHAU12 Phlomis aurea Decne. Sinai Jerusalem sage 2/0
PHFR4 Phlomis fruticosa L. shrubby Jerusalem sage 2/0
PHTU2 Phlomis tuberosa L. tuberous Jerusalem sage 1/1
PHLOX Phlox L. phlox 3/0
PHAC2 Phlox aculeata A. Nelson sagebrush phlox 6/0
PHAD2 Phlox adsurgens Torr. ex Gray northern phlox 3/0
PHAL3 Phlox alyssifolia Greene alyssumleaf phlox 2/0
PHAM3 Phlox amoena Sims hairy phlox 1/1
PHAM7 Phlox amplifolia Britt. largeleaf phlox 1/1
PHAU3 Phlox austromontana Coville mountain phlox 7/0
PHBI3 Phlox bifida Beck cleft phlox 1/1
PHBIS Phlox bifida Beck ssp. stellaria (Gray) Wherry cleft phlox    
PHST13 Phlox stellaria Gray   0/1
PHCA7 Phlox caespitosa Nutt. tufted phlox    
PHDO3 Phlox douglasii Hook.   0/1
PHCA19 Phlox carolina L. thickleaf phlox 2/0
PHCO12 Phlox covillei E. Nels. Coville's phlox 3/0
PHDI3 Phlox diffusa Benth. spreading phlox 7/0
PHDIL5 Phlox diffusa Benth. ssp. longistylis Wherry spreading phlox 2/0
PHDI5 Phlox divaricata L. wild blue phlox 10/1
PHDR Phlox drummondii Hook. annual phlox 6/0
PHDRM2 Phlox drummondii Hook. ssp. mcallisteri (Whitehouse) Wherry McAllister's phlox    
PHDRM Phlox drummondii Hook. ssp. mcallisterii (Whitehouse) Wherry [orthographic variant]   1/0
PHGL4 Phlox glaberrima L. smooth phlox 2/2
PHGLL Phlox glabriflora (Brand) Whitehouse ssp. littoralis (Cory) Wherry Rio Grande phlox 1/0
PHGRT Phlox griseola Wherry ssp. tumulosa Wherry mound phlox 6/0
PHHO Phlox hoodii Richards. spiny phlox 10/1
PHHOC Phlox hoodii Richards. ssp. canescens (Torr. & Gray) Wherry carpet phlox 3/0
PHCA24 Phlox canescens Torr. & Gray   1/0
PHHOL Phlox hoodii Richards. ssp. lanata (Piper) Munz carpet phlox 1/0
PHHOM Phlox hoodii Richards. ssp. muscoides (Nutt.) Wherry musk phlox    
PHBR11 Phlox bryoides Nutt.   1/1
PHKE Phlox kelseyi Britt. Kelsey's phlox 0/1
PHLA13 Phlox latifolia Michx. wideflower phlox    
PHOV Phlox ovata auct. non L. [misapplied]   0/1
PHLO2 Phlox longifolia Nutt. longleaf phlox 9/0
PHMA4 Phlox maculata L. wild sweetwilliam 3/2
PHME2 Phlox mesoleuca Greene threadleaf phlox 3/0
PHMU3 Phlox multiflora A. Nels. flowery phlox 3/0
PHNA2 Phlox nana Nutt. Santa Fe phlox 4/0
PHNI Phlox nivalis Lodd. ex Sweet trailing phlox 1/0
PHNIT Phlox nivalis Lodd. ex Sweet ssp. texensis Lundell Texan phlox 1/0
PHPA9 Phlox paniculata L. fall phlox 2/2
PHPI Phlox pilosa L. downy phlox 9/1
PHPU5 Phlox pulvinata (Wherry) Cronq. cushion phlox 1/0
PHCAP2 Phlox caespitosa Nutt. ssp. pulvinata Wherry   2/0
PHRO3 Phlox roemeriana Scheele goldeneye phlox 2/0
PHSP Phlox speciosa Pursh showy phlox 8/0
PHSPN2 Phlox speciosa Pursh ssp. nitida (Suksdorf) Wherry showy phlox 1/0
PHSPO Phlox speciosa Pursh ssp. occidentalis (Dur. ex Torr.) Wherry showy phlox    
PHSPO2 Phlox speciosa Pursh var. occidentalis (Dur. ex Torr.) M.E. Peck   1/0
PHSPW Phlox speciosa Pursh ssp. woodhousei (Torr. ex Gray) Wherry Woodhouse's phlox    
PHWO2 Phlox woodhousei (Torr. ex Gray) E. Nels.   1/0
PHST11 Phlox stansburyi (Torr.) Heller cold-desert phlox 8/0
PHST3 Phlox stolonifera Sims creeping phlox 2/1
PHSU3 Phlox subulata L. moss phlox 7/1
PHSUB2 Phlox subulata L. ssp. brittonii (Small) Wherry Britton's phlox    
PHBR12 Phlox brittonii Small   0/1
PHTR Phlox triovulata Thurb. ex Torr. threeseed phlox 1/0
PHCH Phoenicaulis cheiranthoides Nutt. wallflower phoenicaulis 4/0
PHOEN2 Phoenix L. date palm 1/0
PHCA13 Phoenix canariensis hort. ex Chabaud Canary Island date palm 4/0
PHDA4 Phoenix dactylifera L. date palm 3/0
PHRE Phoenix reclinata Jacq. Senegal date palm 2/0
PHAUA2 Pholistoma auritum (Lindl.) Lilja var. auritum blue fiestaflower 2/0
PHRA5 Pholistoma racemosum (Nutt. ex Gray) Constance racemed fiestaflower 2/0
PHAN10 Phoradendron anceps (Spreng.) G. Maza goldenfruit mistletoe 1/0
PHCA8 Phoradendron californicum Nutt. mesquite mistletoe 10/0
PHCO14 Phoradendron coryae Trel. Cory's mistletoe 1/0
PHHE7 Phoradendron hexastichum (DC.) Griseb. tropical mistletoe 1/0
PHJU Phoradendron juniperinum Engelm. ex Gray juniper mistletoe 2/0
PHLE14 Phoradendron leucarpum (Raf.) Reveal & M.C. Johnston oak mistletoe 2/0
PHFL2 Phoradendron flavescens Nutt. ex Engelm.   0/1
PHSE9 Phoradendron serotinum (Raf.) M.C. Johnston   1/0
PHPI2 Phoradendron piperoides (Kunth) Trel. Piper mistletoe 1/0
PHTR2 Phoradendron trinervium (Lam.) Griseb. angled mistletoe 1/0
PHORM Phormium J.R. & G. Forst. phormium 2/0
PHTE8 Phormium tenax J.R. & G. Forst. New Zealand flax 3/0
PHOTI Photinia Lindl. chokeberry 0/1
PHFL9 Photinia floribunda (Lindl.) Robertson & Phipps purple chokeberry 0/1
ARAT6 Aronia atropurpurea Britt.   0/1
ARPR2 Aronia prunifolia (Marsh.) Rehd.   1/0
PHFR9 Photinia ×fraseri Dress Fraser's photinia 1/0
PHGL17 Photinia glabra (Thunb.) Maxim. Japanese photinia 1/0
PHME13 Photinia melanocarpa (Michx.) Robertson & Phipps black chokeberry 0/1
ARME6 Aronia melanocarpa (Michx.) Ell.   3/2
PHPY4 Photinia pyrifolia (Lam.) Robertson & Phipps red chokeberry 5/0
ARAR7 Aronia arbutifolia (L.) Pers.   5/2
PYAR2 Pyrus arbutifolia (L.) L. f.   2/0
SOAR8 Sorbus arbutifolia (L.) Heynh.   1/0
PHSE17 Photinia serratifolia (Desf.) Kalkm. Taiwanese photinia 3/0
PHVI81 Photinia villosa (Thunb.) DC. Oriental photinia 1/0
PHRAG Phragmites Adans. reed 3/0
PHAU7 Phragmites australis (Cav.) Trin. ex Steud. common reed 3/1
PHCO15 Phragmites communis Trin.   0/1
PHPH4 Phragmites phragmites (L.) Karst.   0/1
PHKA3 Phragmites karka (Retz.) Trin. ex Steud. [excluded] tall reed 2/0
PHLE5 Phryma leptostachya L. American lopseed 2/1
PHCA45 Phygelius capensis E. Mey. ex Benth Cape-fuchsia 4/0
PHCU3 Phyla cuneifolia (Torr.) Greene wedgeleaf 1/1
LICU Lippia cuneifolia (Torr.) Steud.   1/1
PHLA3 Phyla lanceolata (Michx.) Greene lanceleaf fogfruit 6/1
LILA10 Lippia lanceolata Michx.   2/1
PHNO2 Phyla nodiflora (L.) Greene turkey tangle fogfruit 1/0
LINO2 Lippia nodiflora (L.) Michx.   2/1
PHAC3 Phyllanthus acidus (L.) Skeels Tahitian gooseberry tree 1/0
PHCA9 Phyllanthus caroliniensis Walt. Carolina leaf-flower 0/1
PHEP Phyllanthus epiphyllanthus L. swordbush 2/0
PHJU2 Phyllanthus juglandifolius Willd. gamo de costa 2/0
PHNI2 Phyllanthus niruri L. gale of the wind 1/0
PHUR Phyllanthus urinaria L. chamber bitter 3/0
PHTR7 Phyllocladus trichomanoides D. Don celery pine 2/0
PHAL4 Phyllodoce aleutica (Spreng.) Heller Aleutian mountainheath 1/0
PHBR4 Phyllodoce breweri (Gray) Heller purple mountainheath 5/0
PHCA10 Phyllodoce caerulea (L.) Bab. blue mountainheath 0/1
PHEM Phyllodoce empetriformis (Sm.) D. Don pink mountainheath 7/0
PHGL6 Phyllodoce glanduliflora (Hook.) Coville yellow mountainheath 2/0
PHYLL6 Phyllostachys Sieb. & Zucc. bamboo 1/0
PHAU8 Phyllostachys aurea Carr. ex A.& C. Rivière golden bamboo 1/0
PHDU3 Phyllostachys dulcis McClure sweetshoot bamboo 2/0
PHED4 Phyllostachys edulis (Carr.) Houz. tortoise shell bamboo    
PHPU23 Phyllostachys pubescens Mazel ex Houz.   1/0
PHFL80 Phyllostachys flexuosa A.& C. Rivière drooping timber bamboo 4/0
PHNI80 Phyllostachys nigra (Lodd.) Munro black bamboo 1/0
PHVI19 Phyllostachys vivax McClure running giant bamboo 3/0
PHYSA Physalis L. groundcherry 1/0
PHAC6 Physalis acutifolia (Miers) Sandw. sharpleaf groundcherry 1/0
PHAL5 Physalis alkekengi L. strawberry groundcherry 3/0
PHAN5 Physalis angulata L. cutleaf groundcherry 2/1
PHPE11 Physalis pendula Rydb.   0/1
PHAN8 Physalis angustifolia Nutt. coastal groundcherry 1/0
PHCR4 Physalis crassifolia Benth. yellow nightshade groundcherry 4/0
PHHEC Physalis hederifolia Gray var. comata (Rydb.) Waterfall ivyleaf groundcherry    
PHCO27 Physalis comata Rydb.   0/1
PHRO7 Physalis rotundata Rydb.   0/1
PHHE5 Physalis heterophylla Nees clammy groundcherry 2/1
PHHI8 Physalis hispida (Waterfall) Cronq. prairie groundcherry    
PHLA20 Physalis lanceolata auct. p.p., non Michx.   1/1
PHLO4 Physalis longifolia Nutt. longleaf groundcherry 1/1
PHLOS Physalis longifolia Nutt. var. subglabrata (Mackenzie & Bush) Cronq. longleaf groundcherry    
PHMA14 Physalis macrophysa Rydb.   0/1
PHSU8 Physalis subglabrata Mackenzie & Bush   0/1
PHMI5 Physalis missouriensis Mackenzie & Bush Missouri groundcherry 0/1
PHPH2 Physalis philadelphica Lam. Mexican groundcherry 1/0
PHPHI Physalis philadelphica Lam. var. immaculata Waterfall Mexican groundcherry    
PHIX Physalis ixocarpa auct. non Brot. ex Hornem. [misapplied]   1/1
PHPU7 Physalis pubescens L. husk tomato 1/1
PHPUI Physalis pubescens L. var. integrifolia (Dunal) Waterfall husk tomato    
PHPR7 Physalis pruinosa auct. non L. [misapplied]   0/1
PHPUP4 Physalis pubescens L. var. pubescens husk tomato    
PHBA6 Physalis barbadensis Jacq.   0/1
PHPU8 Physalis pumila Nutt. dwarf groundcherry 0/1
PHVI5 Physalis virginiana P. Mill. Virginia groundcherry 1/1
PHVI17 Physalis viscosa L. starhair groundcherry 1/1
PHWA4 Physalis walteri Nutt. Walter's groundcherry    
PHVIM4 Physalis viscosa L. var. maritima (M.A. Curtis) Rydb.   2/0
PHAC4 Physaria acutifolia Rydb. sharpleaf twinpod 1/0
PHBE2 Physaria bellii Mulligan Front Range twinpod 2/0
PHCH2 Physaria chambersii Rollins Chambers' twinpod 8/0
PHDI6 Physaria didymocarpa (Hook.) Gray common twinpod 0/1
PHDO4 Physaria dornii Lichvar Tunp Range twinpod 2/0
PHOB Physaria obcordata Rollins Dudley Bluffs twinpod 2/0
PHPA21 Physcomitrella patens (Hedw.) Bruch & Schimp. in B.S.G. physcomitrella moss 7/0
PHPY3 Physcomitrium pyriforme (Hedw.) Hampe physcomitrium moss 4/0
PHCA11 Physocarpus capitatus (Pursh) Kuntze Pacific ninebark 6/0
PHMA5 Physocarpus malvaceus (Greene) Kuntze mallow ninebark 1/1
PHMO4 Physocarpus monogynus (Torr.) Coult. mountain ninebark 1/0
PHOP Physocarpus opulifolius (L.) Maxim. common ninebark 9/1
PHOPI Physocarpus opulifolius (L.) Maxim. var. intermedius (Rydb.) B.L. Robins. Atlantic ninebark    
OPIN Opulaster intermedius Rydb.   0/1
PHIN17 Physocarpus intermedius (Rydb.) Schneid.   1/0
PHOPO Physocarpus opulifolius (L.) Maxim. var. opulifolius common ninebark    
OPOP2 Opulaster opulifolius (L.) Kuntze   0/1
PHCO17 Physostegia correllii (Lundell) Shinners Correll's false dragonhead 1/0
PHDI7 Physostegia digitalis Small finger false dragonhead 1/0
PHIN8 Physostegia intermedia (Nutt.) Engelm. & Gray slender false dragonhead 1/0
DRIN6 Dracocephalum intermedium Nutt.   0/1
PHPA10 Physostegia parviflora Nutt. ex Gray western false dragonhead 1/0
DRNU2 Dracocephalum nuttallii Britt.   0/1
PHPU9 Physostegia pulchella Lundell showy false dragonhead 1/0
PHVI8 Physostegia virginiana (L.) Benth. obedient plant 7/1
PHVIV Physostegia virginiana (L.) Benth. ssp. virginiana obedient plant    
DRDE5 Dracocephalum denticulatum Ait.   0/1
DRVI3 Dracocephalum virginianum L.   1/1
PHVE11 Physostigma venenosum Balf. Calabar bean 1/0
PHAM4 Phytolacca americana L. American pokeweed 11/2
PICEA Picea A. Dietr. spruce 3/1
PIAB Picea abies (L.) Karst. Norway spruce 5/0
PIBR Picea breweriana S. Wats. Brewer spruce 17/1
PIEN Picea engelmannii Parry ex Engelm. Engelmann spruce 15/0
PIGL Picea glauca (Moench) Voss white spruce 3/0
PICA10 Picea canadensis (P. Mill.) B.S.P.   0/1
PIGLD Picea glauca (Moench) Voss var. densata Bailey   6/0
PIGL7 Picea glehnii (F. Schmidt) Mast. Sakhalin spruce 6/0
PIMA Picea mariana (P. Mill.) B.S.P. black spruce 3/1
PIPU Picea pungens Engelm. blue spruce 23/0
PIRU Picea rubens Sarg. red spruce 4/2
PISI Picea sitchensis (Bong.) Carr. Sitka spruce 18/0
PISM Picea smithiana (Wall.) Boiss. morinda spruce 2/0
PIMO5 Pickeringia montana Nutt. ex Torr. & Gray Montana chaparral pea 8/0
PIOP Picradeniopsis oppositifolia (Nutt.) Rydb. ex Britt. oppositeleaf bahia 0/1
PIEC Picris echioides L. bristly oxtongue 2/1
PIHI Picris hieracioides L. hawkweed oxtongue 0/1
PIDE4 Picrothamnus desertorum Nutt. bud sagebrush 5/0
PIAC Pictetia aculeata (Vahl) Urban fustic 1/0
PIFL Pieris floribunda (Pursh) Benth. & Hook. f. mountain fetterbush 2/1
PIJA3 Pieris japonica (Thunb.) D. Don ex G. Don Japanese pieris 7/0
PIPU2 Pilea pumila (L.) Gray Canadian clearweed 2/2
PILOS2 Pilosocereus Byles & Rowley tree cactus 2/0
PIPO4 Pilosocereus polygonus (Lam.) Byles & Rowley Key tree cactus    
CERO3 Cereus robinii (Lem.) L. Benson   1/0
CEROK Cereus robinii (Lem.) L. Benson var. keyensis (Britt. & Rose) L. Benson ex Long & Lakela   1/0
PIRO6 Pilosocereus royenii (L.) Byles & Rowley Royen's tree cactus 5/0
PIDI2 Pimenta dioica (L.) Merr. allspice 2/0
PIRA Pimenta racemosa (P. Mill.) J.W. Moore bayrumtree 1/0
PIRAR Pimenta racemosa (Mill.) J.W. Moore var. racemosa bayrumtree    
PIAC5 Pimenta acris auct. non Kostel.   1/0
PISA Pimpinella saxifraga L. solidstem burnet saxifrage 0/1
PIRO Pinaropappus roseus (Less.) Less. white rocklettuce 1/0
PIBR6 Pinckneya bracteata (Bartram) Raf. fevertree 4/0
PICA7 Pinguicula caerulea Walt. blueflower butterwort 6/0
PILU2 Pinguicula lutea Walt. yellow butterwort 5/1
PIMAM2 Pinguicula macroceras Link var. macroceras California butterwort 1/0
PIPU4 Pinguicula pumila Michx. small butterwort 5/0
PIVI Pinguicula villosa L. hairy butterwort 0/1
PIVU Pinguicula vulgaris L. common butterwort 3/1
PINUS Pinus L. pine 5/2
PIAL Pinus albicaulis Engelm. whitebark pine 24/0
PIAR Pinus aristata Engelm. bristlecone pine 57/0
PIAR5 Pinus arizonica Engelm. Arizona pine 1/0
PIARA Pinus arizonica Engelm. var. arizonica Arizona pine    
PIPOA2 Pinus ponderosa P.& C. Lawson ssp. arizonica (Engelm.) E. Murr.   1/0
PIPOA Pinus ponderosa C. Lawson var. arizonica (Engelm.) Shaw   1/0
PIAT Pinus attenuata Lemmon knobcone pine 16/0
PIBA Pinus balfouriana Grev. & Balf. foxtail pine 6/0
PIBA2 Pinus banksiana Lamb. jack pine 16/1
PICA15 Pinus canariensis C. Smith Canary Island pine 4/0
PICE2 Pinus cembra L. Swiss stone pine 1/0
PICE Pinus cembroides Zucc. Mexican pinyon 8/0
PICL Pinus clausa (Chapman ex Engelm.) Vasey ex Sarg. sand pine 12/0
PICO Pinus contorta Dougl. ex Loud. lodgepole pine 19/0
PICOC Pinus contorta Dougl. ex Loud. var. contorta beach pine 7/0
PICOL Pinus contorta Dougl. ex Loud. var. latifolia Engelm. ex S. Wats. lodgepole pine 2/0
PICOL2 Pinus contorta Dougl. ex Loud. ssp. latifolia (Engelm. ex S. Wats.) Critchfield   4/0
PICOM Pinus contorta Dougl. ex Loud. var. murrayana (Grev. & Balf.) Engelm. Sierra lodgepole pine 11/0
PICO3 Pinus coulteri D. Don Coulter pine 13/0
PIEC2 Pinus echinata P. Mill. shortleaf pine 23/1
PIED Pinus edulis Engelm. twoneedle pinyon 17/0
PIEL Pinus elliottii Engelm. slash pine 11/1
PIELE2 Pinus elliottii Engelm. var. elliottii Honduras pine 1/0
PICA2 Pinus caribaea sensu Small, non Morelet   4/0
PIEN2 Pinus engelmannii Carrière Apache pine    
PILA5 Pinus latifolia Sarg.   4/0
PIFL2 Pinus flexilis James limber pine 40/0
PIGL2 Pinus glabra Walt. spruce pine 9/1
PIGR8 Pinus greggii Engelm. ex Parl. 2/0
PIHA7 Pinus halepensis P. Mill. aleppo pine 3/0
PIJE Pinus jeffreyi Grev. & Balf. Jeffrey pine 25/0
PIJO Pinus johannis M.F. Robert Johannis pine 2/0
PILA Pinus lambertiana Dougl. sugar pine 24/0
PILE Pinus leiophylla Schiede & Deppe Chihuahuan pine 2/0
PILEC Pinus leiophylla Schiede & Deppe var. chihuahuana (Engelm.) Shaw Chihuahuan pine 2/0
PILO Pinus longaeva D.K. Bailey Great Basin bristlecone pine 5/0
PIMA14 Pinus maximartinezii Rzed. maxipiñon 3/0
PIMO Pinus monophylla Torr. & Frém. singleleaf pinyon 10/0
PIMO3 Pinus monticola Dougl. ex D. Don western white pine 20/0
PIMU80 Pinus mugo Turra mugo pine 5/0
PIMU Pinus muricata D. Don Bishop pine 9/0
PINI Pinus nigra Arnold Austrian pine 7/0
PIPA2 Pinus palustris P. Mill. longleaf pine 37/1
PIPA13 Pinus patula Schiede ex Schltdl. & Cham. Mexican weeping pine 7/0
PIPI6 Pinus pinaster Soland., non Ait. maritime pine 2/0
PIPI7 Pinus pinea L. Italian stone pine 1/0
PIPO Pinus ponderosa P.& C. Lawson ponderosa pine 43/1
PIPOP Pinus ponderosa P.& C. Lawson var. ponderosa ponderosa pine 8/0
PIPU5 Pinus pungens Lamb. Table Mountain pine 7/1
PIQU Pinus quadrifolia Parl. ex Sudw. Parry pinyon 1/0
PIRA2 Pinus radiata D. Don Monterey pine 7/0
PIRE Pinus resinosa Soland. red pine 10/1
PIRI Pinus rigida P. Mill. pitch pine 15/2
PISA2 Pinus sabiniana Dougl. ex Dougl. California foothill pine 23/0
PISE Pinus serotina Michx. pond pine 9/1
PIST3 Pinus strobiformis Engelm. southwestern white pine 1/0
PIST Pinus strobus L. eastern white pine 20/2
PISY Pinus sylvestris L. Scots pine 9/0
PITA Pinus taeda L. loblolly pine 37/1
PITH2 Pinus thunbergii Parl. Japanese black pine    
PITH3 Pinus thunbergiana Franco   4/0
PITO Pinus torreyana Parry ex Carr. Torrey pine 9/0
PITOI2 Pinus torreyana Parry ex Carr. var. insularis (Haller) Siba Santa Cruz Island Torrey pine 7/0
PIVI2 Pinus virginiana P. Mill. Virginia pine 10/1
PIWA3 Pinus wallichiana A.B. Jacks. Bhutan pine 6/0
PIWA Pinus washoensis Mason & Stockwell Washoe pine 4/0
PIBL Piper blattarum Spreng. moth pepper 1/0
PINI3 Piper nigrum L. black pepper 2/0
PIELE4 Piperia elegans (Lindl.) Rydb. ssp. elegans elegant piperia 1/0
PIUN3 Piperia unalascensis (Spreng.) Rydb. slender-spire orchid 2/1
PICA17 Piptatherum canadense (Poir) Dorn Canadian ricegrass    
ORCA5 Oryzopsis canadensis (Poir.) Torr.   0/1
STCA19 Stipa canadensis Poir.   0/1
PIEX3 Piptatherum exiguum (Thurb.) Dorn little ricegrass    
OREX Oryzopsis exigua Thurb.   0/1
PIMI7 Piptatherum micranthum (Trin. & Rupr.) Barkworth littleseed ricegrass    
ORMI2 Oryzopsis micrantha (Trin. & Rupr.) Thurb.   2/2
PIMI3 Piptatherum miliaceum (L.) Coss. smilograss    
ORMI3 Oryzopsis miliacea (L.) Benth. & Hook. f. ex Aschers. & Schweinf.   2/1
PIPU7 Piptatherum pungens (Torr. ex Spreng.) Dorn mountain ricegrass    
ORPU4 Oryzopsis pungens (Torr. ex Spreng.) A.S. Hitchc.   0/2
PIRA5 Piptatherum racemosum (Sm.) Barkworth blackseed ricegrass    
ORRA2 Oryzopsis racemosa (Sm.) Ricker ex A.S. Hitchc.   0/2
PITE6 Piptocarpha tetrantha Urban mountain ashdaisy 2/0
PIAV Piptochaetium avenaceum (L.) Parodi blackseed speargrass 3/0
STAV Stipa avenacea L.   1/2
PIAV2 Piptochaetium avenacioides (Nash) Valencia & Costas Florida speargrass    
STAV2 Stipa avenacioides Nash   0/1
PIFI Piptochaetium fimbriatum (Kunth) A.S. Hitchc. pinyon ricegrass 0/1
PIPR2 Piptochaetium pringlei (Beal) Parodi Pringle's speargrass    
STPR2 Stipa pringlei (Beal) Scribn.   0/1
PIAC6 Piptocoma acevedoi Pruski Acevedo's velvetshrub 1/0
PIAN4 Piptocoma antillana Urban Antilles velvetshrub 1/0
PICIC Piriqueta cistoides (L.) Griseb. ssp. caroliniana (Walt.) Arbo pitted stripeseed    
PICA6 Piriqueta caroliniana (Walt.) Urban   2/0
PICA5 Piscidia carthagenensis Jacq. stinkwood 1/0
PIAC2 Pisonia aculeata L. pullback 2/0
PISTA Pistacia L. pistache 2/0
PIAT4 Pistacia atlantica Desf. Mt. Atlas mastic tree 1/0
PICH4 Pistacia chinensis Bunge Chinese pistache 2/0
PILE5 Pistacia lentiscus L. mastic tree 1/0
PISTI Pistia L. pistia 1/0
PIST2 Pistia stratiotes L. water lettuce 3/0
PIEL5 Pisum elatius Steven ex M. Bieb. wild pea 1/0
PIFU Pisum fulvum Sibthorp & Sm. tawny pea 1/0
PISA6 Pisum sativum L. garden pea 1/0
PIAN Pitcairnia angustifolia Ait. pina cortadora 2/0
PITHE Pithecellobium Mart. blackbead 2/0
PIDU Pithecellobium dulce (Roxb.) Benth. monkeypod 1/0
PIUN Pithecellobium unguis-cati (L.) Benth. catclaw blackbead 3/0
PICR3 Pithecoctenium crucigerum (L.) A.H. Gentry monkey's-comb 1/0
PITTO Pittosporum Banks ex Soland. cheesewood 1/0
PIRA6 Pittosporum ralphii Kirk Ralph's desertwillow 2/0
PITO2 Pittosporum tobira (Thunb.) Ait. f. Japanese cheesewood 2/0
PIUN2 Pittosporum undulatum Vent. Australian cheesewood 1/0
PIVI5 Pittosporum viridiflorum Sims Cape cheesewood 1/0
PIFA Pityopsis falcata (Pursh) Nutt. sickleleaf silkgrass    
CHFA5 Chrysopsis falcata (Pursh) Ell.   1/1
PIGR4 Pityopsis graminifolia (Michx.) Nutt. narrowleaf silkgrass 8/0
PIGRG Pityopsis graminifolia (Michx.) Nutt. var. graminifolia narrowleaf silkgrass    
CHGR14 Chrysopsis graminifolia (Michx.) Ell.   1/1
HENE3 Heterotheca nervosa (Willd.) Shinners   1/0
PITYR Pityrogramma Link goldback fern 1/0
PLCA2 Plagiobothrys canescens Benth. valley popcornflower 2/0
PLKI Plagiobothrys kingii (S. Wats.) Gray Great Basin popcornflower 2/0
PLLE Plagiobothrys leptocladus (Greene) I.M. Johnston finebranched popcornflower 2/0
PLMOM Plagiobothrys mollis (Gray) I.M. Johnston var. mollis soft popcornflower 2/0
PLNO Plagiobothrys nothofulvus (Gray) Gray rusty popcornflower 2/0
PLSC2 Plagiobothrys scouleri (Hook. & Arn.) I.M. Johnston Scouler's popcornflower 4/1
PLSCH Plagiobothrys scouleri (Hook. & Arn.) I.M. Johnston var. hispidulus (Greene) Dorn sleeping popcornflower 2/0
ALSC7 Allocarya scopulorum Greene   0/1
PLSTM Plagiobothrys stipitatus (Greene) I.M. Johnston var. micranthus (Piper) I.M. Johnston stalked popcornflower 1/0
PLST2 Plagiobothrys strictus (Greene) I.M. Johnston Calistoga popcornflower 5/0
PLDE70 Plagiobryum demissum (Hook.) Lindb. plagiobryum moss 1/0
PLAS6 Plagiochila asplenioides (L.) Dumort. 1/0
PLPO4 Plagiochila porelloides (Torr. ex Nees) Lindenb. 2/0
PLCU4 Plagiomnium cuspidatum (Hedw.) T. Kop. toothed plagiomnium moss 4/0
PLEL2 Plagiomnium ellipticum (Brid.) T. Kop. elliptic plagiomnium moss 4/0
PLME4 Plagiomnium medium (Bruch & Schimp. in B.S.G.) T. Kop. medium plagiomnium moss 3/0
PLRO5 Plagiomnium rostratum (Schrad.) T. Kop. plagiomnium moss 4/0
PLOE Plagiopus oederiana (Sw.) Crum & Anderson Oeder's plagiopus moss    
PLOE2 Plagiopus oederi (Brid.) Limpr.   3/0
PLCA15 Plagiothecium cavifolium (Brid.) Iwats. plagiothecium moss 5/0
PLPL3 Plagiothecium platyphyllum auct. Amer.   6/0
PLDE2 Plagiothecium denticulatum (Hedw.) Schimp. in B.S.G. toothed plagiothecium moss 3/0
PLRU6 Plagiothecium ruthei auct. Amer.   3/0
PLLA8 Plagiothecium laetum Schimp. in B.S.G. plagiothecium moss 3/0
PLCU5 Plagiothecium curvifolium auct. Amer.   5/0
PLLA9 Plagiothecium latebricola Schimp. in B.S.G. plagiothecium moss 3/0
PLPI2 Plagiothecium piliferum (Sw. ex Hartm.) Schimp. in B.S.G. plagiothecium moss 1/0
PLUN4 Plagiothecium undulatum (Hedw.) Schimp. in B.S.G. undulate plagiothecium moss 4/0
PLAQ Planera aquatica J.F. Gmel. planertree 3/1
PLAR3 Plantago aristata Michx. largebracted plantain 6/1
PLCO2 Plantago cordata Lam. heartleaf plantain 2/2
PLCO3 Plantago coronopus L. buckhorn plantain 2/0
PLEL Plantago elongata Pursh prairie plantain 5/0
PLER3 Plantago erecta Morris dotseed plantain 6/0
PLER Plantago eriopoda Torr. redwool plantain 0/1
PLHE2 Plantago heterophylla Nutt. slender plantain 0/1
PLLA Plantago lanceolata L. narrowleaf plantain 5/1
PLMA Plantago macrocarpa Cham. & Schlecht. seashore plantain 1/0
PLMA2 Plantago major L. common plantain 5/2
PLMA3 Plantago maritima L. goose tongue 5/1
PLME Plantago media L. hoary plantain 0/1
PLOV Plantago ovata Forsk. desert Indianwheat 4/0
PLPA2 Plantago patagonica Jacq. woolly plantain 11/0
PLPU80 Plantago purshii Roemer & J.A. Schultes   3/1
PLPS Plantago psyllium L. sand plantain 1/0
PLAR6 Plantago arenaria Waldst. & Kit.   0/1
PLPU Plantago pusilla Nutt. dwarf plantain 0/1
PLRH Plantago rhodosperma Dcne. redseed plantain 1/0
PLRU Plantago rugelii Dcne. blackseed plantain 1/2
PLVI Plantago virginica L. Virginia plantain 2/1
PLATA2 Platanthera L.C. Rich. fringed orchid 1/0
PLBLB Platanthera blephariglottis (Willd.) Lindl. var. blephariglottis white fringed orchid    
BLBL2 Blephariglotis blephariglottis (Willd.) Rydb.   0/1
HABL6 Habenaria blephariglottis (Willd.) Hook.   6/0
PLCI2 Platanthera ciliaris (L.) Lindl. yellow fringed orchid 8/0
BLCI2 Blephariglotis ciliaris (L.) Rydb.   0/1
HACI7 Habenaria ciliaris (L.) R. Br. ex Ait. f.   3/0
PLCL Platanthera clavellata (Michx.) Luer small green wood orchid 1/0
GYCL Gymnadeniopsis clavellata (Michx.) Rydb.   0/1
HACL3 Habenaria clavellata (Michx.) Spreng.   3/0
PLCR Platanthera cristata (Michx.) Lindl. crested yellow orchid 4/0
BLCR2 Blephariglotis cristata (Michx.) Raf.   0/1
HACR7 Habenaria cristata (Michx.) R. Br. ex Ait. f.   3/0
PLDI3 Platanthera dilatata (Pursh) Lindl. ex Beck scentbottle 4/0
PLDID Platanthera dilatata (Pursh) Lindl. ex Beck var. dilatata scentbottle 3/0
HADI7 Habenaria dilatata (Pursh) Hook.   3/0
LIDI5 Limnorchis dilatata (Pursh) Rydb.   0/1
PLDIL Platanthera dilatata (Pursh) Lindl. ex Beck var. leucostachys (Lindl.) Luer Sierra bog orchid    
HADIL Habenaria dilatata (Pursh) Hook. var. leucostachys (Lindl.) Ames   1/0
PLLE5 Platanthera leucostachys Lindl.   6/0
PLFLF Platanthera flava (L.) Lindl. var. flava palegreen orchid    
HAFL6 Habenaria flava (L.) R. Br.   2/0
PEFL13 Perularia flava (L.) Farw.   0/1
PLGR2 Platanthera grandiflora (Bigelow) Lindl. greater purple fringed orchid 1/0
BLGR Blephariglotis grandiflora (Bigelow) Rydb.   0/1
PLHO3 Platanthera hookeri (Torr. ex Gray) Lindl. Hooker's orchid 1/0
HAHO2 Habenaria hookeri Torr. ex Gray   2/0
LYHO Lysias hookeriana (Torr. ex Gray) Rydb.   0/1
PLHY2 Platanthera hyperborea (L.) Lindl. northern green orchid 1/1
LIHY Limnorchis hyperborea   0/1
PLIN5 Platanthera integra (Nutt.) Gray ex Beck yellow fringeless orchid 1/0
GYIN2 Gymnadeniopsis integra (Nutt.) Rydb.   0/1
HAIN4 Habenaria integra (Nutt.) Spreng.   4/0
PLIN6 Platanthera integrilabia (Correll) Luer white fringeless orchid 3/0
PLLA2 Platanthera lacera (Michx.) G. Don green fringed orchid 4/0
BLLA2 Blephariglotis lacera (Michx.) Farw.   0/1
HALA6 Habenaria lacera (Michx.) R. Br.   5/0
PLLE2 Platanthera leucophaea (Nutt.) Lindl. prairie white fringed orchid    
BLLE Blephariglotis leucophaea (Nutt.) Farw.   0/1
PLNI Platanthera nivea (Nutt.) Luer snowy orchid    
GYNI2 Gymnadeniopsis nivea (Nutt.) Rydb.   0/1
HANI2 Habenaria nivea (Nutt.) Spreng.   2/0
PLOB Platanthera obtusata (Banks ex Pursh) Lindl. bluntleaved orchid 1/0
PLOBO3 Platanthera obtusata (Banks ex Pursh) Lindl. ssp. obtusata bluntleaved orchid    
LYOB2 Lysiella obtusata (Banks ex Pursh) Rydb.   2/1
PLOR4 Platanthera orbiculata (Pursh) Lindl. lesser roundleaved orchid    
HAOR2 Habenaria orbiculata (Pursh) Torr.   2/0
LYOR Lysias orbiculata (Pursh) Rydb.   0/1
PLPE Platanthera peramoena (Gray) Gray purple fringeless orchid 2/1
BLPE Blephariglotis peramoena (Gray) Rydb.   0/1
PLPS2 Platanthera psycodes (L.) Lindl. lesser purple fringed orchid 4/0
BLPS Blephariglotis psycodes (L.) Rydb.   0/1
PLSP2 Platanthera sparsiflora (S. Wats.) Schlechter sparse-flowered bog orchid 2/0
PLSPS Platanthera sparsiflora (S. Wats.) Schlechter var. sparsiflora sparse-flowered bog orchid    
HASP5 Habenaria sparsiflora S. Wats.   1/0
PLST4 Platanthera stricta Lindl. slender bog orchid 1/0
PLATA Platanus L. sycamore 2/0
PLHY3 Platanus hybrida Brot. London planetree    
PLAC2 Platanus acerifolia (Aiton) Willd.   3/0
PLOC Platanus occidentalis L. American sycamore 6/2
PLOR6 Platanus orientalis L. Oriental planetree 4/0
PLRA Platanus racemosa Nutt. California sycamore 1/0
PLWR2 Platanus wrightii S. Wats. Arizona sycamore 7/0
PLOR80 Platycladus orientalis (L.) Franco Oriental arborvitae 1/0
THOR Thuja orientalis L.   2/0
PLGR7 Platycodon grandiflorus (Jacq.) A. DC. balloon-flower    
PLGR5 Platycodon grandiflorum (Jacq.) A. DC. [orthographic variant]   2/0
PLSU5 Platydictya subtilis (Hedw.) Crum platydictya moss    
AMSU3 Amblystegiella subtilis (Hedw.) Loeske   3/0
PLRE5 Platygyrium repens (Brid.) Schimp. in B.S.G. platygyrium moss 4/0
PLRI4 Platyhypnidium riparioides (Hedw.) Dix. platyhypnidium moss    
RHRI5 Rhynchostegium riparioides (Hedw.) Card. in Tourr.   6/0
PLINO Platyschkuhria integrifolia (A. Gray) Rydb. var. oblongifolia (A. Gray) W. Ellison oblongleaf basindaisy    
PLOB3 Platyschkuhria oblongifolia (A. Gray) Rydb.   3/0
PLCA5 Platystemon californicus Benth. creamcups 4/0
PLBA2 Plectranthus barbatus Andrews forskohlii 1/0
PLCI6 Plectranthus ciliatus E. Mey. speckled spur flower 1/0
PLVE2 Plectranthus verticillatus (L. f.) Druce whorled plectranthus 1/0
PLMA4 Plectritis macrocera Torr. & Gray longhorn plectritis 5/0
PLMAG Plectritis macrocera Torr. & Gray ssp. grayi (Suksdorf) Morey Gray's seablush 1/0
PLSP7 Pleiacanthus spinosus (Nutt.) Rydb. thorn skeletonweed    
STSP6 Stephanomeria spinosa (Nutt.) S. Tomb   6/0
PLAU2 Pleomele aurea (Mann) N.E. Br. golden hala pepe 2/0
PLPOP Pleopeltis polypodioides (L.) Andrews & Windham ssp. polypodioides resurrection fern 1/0
POPO6 Polypodium polypodioides (L.) Watt   2/1
PLRI Pleopeltis riograndensis (T. Wendt) Andrews & Windham Rio Grande scaly polypody 1/0
PLCH4 Pleopsidium chlorophanum (Wahlenb.) Zopf 1/0
PLJA Pleuraphis jamesii Torr. James' galleta    
HIJA Hilaria jamesii (Torr.) Benth.   0/1
PLMU3 Pleuraphis mutica Buckl. tobosagrass 2/0
HIMU2 Hilaria mutica (Buckl.) Benth.   2/1
PLRI3 Pleuraphis rigida Thurb. big galleta 1/0
HIRI Hilaria rigida (Thurb.) Benth. ex Scribn.   0/1
PLFI2 Pleuricospora fimbriolata Gray fringed pinesap 2/0
PLAC4 Pleuridium acuminatum Lindb. acuminate pleuridium moss 2/0
PLPA5 Pleuridium palustre (Bruch & Schimp.) Bruch & Schimp. in B.S.G. prairie pleuridium moss 1/0
PLSU6 Pleuridium subulatum (Hedw.) Rabenh. pleuridium moss 2/0
PLSQ2 Pleurochaete squarrosa (Brid.) Lindb. square pleurochaete moss 4/0
PLCA6 Pleuropogon californicus (Nees) Benth. ex Vasey annual semaphoregrass 2/1
PLCAD Pleuropogon californicus (Nees) Benth. ex Vasey var. davyi (L. Benson) P.H. But annual semaphoregrass    
PLDA Pleuropogon davyi L. Benson   0/1
PLHO2 Pleuropogon hooverianus L. Benson North Coast semaphoregrass 0/1
PLOR3 Pleuropogon oregonus Chase Oregon semaphoregrass 0/1
PLRE2 Pleuropogon refractus (Gray) Benth. ex Vasey nodding semaphoregrass 0/1
PLSA Pleuropogon sabinei R. Br. false semaphoregrass 0/1
PLSC70 Pleurozium schreberi (Brid.) Mitt. Schreber's big red stem moss 3/0
CASC32 Calliergonella schreberi (Brid.) Grout   1/0
PLUCH Pluchea Cass. camphorweed 1/0
PLCA7 Pluchea camphorata (L.) DC. camphor pluchea 1/2
PLPE2 Pluchea petiolata Cass.   0/1
PLFO Pluchea foetida (L.) DC. stinking camphorweed 1/1
PLIN4 Pluchea indica (L.) Less. Indian camphorweed 2/0
PLOD Pluchea odorata (L.) Cass. sweetscent 0/1
PLODO Pluchea odorata (L.) Cass. var. odorata sweetscent    
PLPU2 Pluchea purpurascens (Sw.) DC.   2/0
PLRO Pluchea rosea Godfrey rosy camphorweed 1/0
PLSE Pluchea sericea (Nutt.) Coville arrowweed 7/1
PLUMB Plumbago L. leadwort 1/0
PLAU6 Plumbago auriculata Lam. Cape leadwort    
PLCA9 Plumbago capensis Thunb.   1/0
PLSC4 Plumbago scandens L. doctorbush 1/0
PLUME Plumeria L. plumeria 2/0
PLAL Plumeria alba L. nosegaytree 1/0
PLOB2 Plumeria obtusa L. Singapore graveyard flower 4/0
PLRU2 Plumeria rubra L. templetree 8/0
POA Poa L. bluegrass 4/0
POAB Poa abbreviata R. Br. short bluegrass 0/1
POABP Poa abbreviata R. Br. ssp. pattersonii (Vasey) A.& D. Löve & Kapoor Patterson's bluegrass    
POPA3 Poa pattersonii Vasey   0/1
POAL2 Poa alpina L. alpine bluegrass 2/2
POAL3 Poa alsodes Gray grove bluegrass 0/2
POAN Poa annua L. annual bluegrass 4/3
POAR Poa arachnifera Torr. Texas bluegrass 1/2
POAR2 Poa arctica R. Br. arctic bluegrass 0/1
POARA2 Poa arctica R. Br. ssp. arctica arctic bluegrass    
POCEA Poa cenisia All. var. arctica (R. Br.) Richter   0/1
POAR3 Poa arida Vasey plains bluegrass 1/2
POGL3 Poa glaucifolia Scribn. & Williams ex Williams   0/1
POPS3 Poa pseudopratensis Scribn. & Rydb.   0/1
POAR21 Poa arnowiae Soreng Wasatch bluegrass    
POCU Poa curta auct. non Rydb. [misapplied]   0/1
POAT Poa atropurpurea Scribn. San Bernardino bluegrass 2/1
POAU Poa autumnalis Muhl. ex Ell. autumn bluegrass 1/3
POBI Poa bigelovii Vasey & Scribn. Bigelow's bluegrass 0/1
POBO Poa bolanderi Vasey Bolander's bluegrass 0/1
POBU Poa bulbosa L. bulbous bluegrass 8/1
POCH Poa chaixii Vill. broadleaf bluegrass 3/1
POCH2 Poa chapmaniana Scribn. Chapman's bluegrass 0/2
POCO Poa compressa L. Canada bluegrass 2/3
POCO2 Poa confinis Vasey coastline bluegrass 1/1
POCU2 Poa curtifolia Scribn. little mountain bluegrass 0/1
POCU3 Poa cusickii Vasey Cusick's bluegrass 2/1
POCUE2 Poa cusickii Vasey ssp. epilis (Scribn.) W.A. Weber Cusick's bluegrass    
POEP3 Poa epilis Scribn.   1/1
POCU4 Poa cuspidata Nutt. early bluegrass 1/1
POBR11 Poa brachyphylla J.A. Schultes   0/1
PODO Poa douglasii Nees Douglas' bluegrass 2/1
POEM Poa eminens J. Presl largeflower speargrass 0/1
POFE Poa fendleriana (Steud.) Vasey muttongrass 2/0
POFEL Poa fendleriana (Steud.) Vasey ssp. longiligula (Scribn. & Williams) Soreng muttongrass    
POLO Poa longiligula Scribn. & Williams   0/1
POGL Poa glauca Vahl glaucous bluegrass 2/2
POGLG Poa glauca Vahl ssp. glauca glaucous bluegrass    
POGL2 Poa glaucantha Gaudin   0/1
POGLR2 Poa glauca Vahl ssp. rupicola (Nash ex Rydb.) W.A. Weber timberline bluegrass    
PORU10 Poa rupicola Nash ex Rydb.   2/1
POHO6 Poa howellii Vasey & Scribn. Howell's bluegrass 0/1
POKE Poa kelloggii Vasey Kellogg's bluegrass 0/1
POLA10 Poa laxa Haenke Mt. Washington bluegrass 0/1
POLA3 Poa laxiflora Buckl. looseflower bluegrass 1/1
POLE Poa leibergii Scribn. Leiberg's bluegrass 3/1
POVA Poa vaseyochloa Scribn.   0/1
POLE2 Poa leptocoma Trin. marsh bluegrass 3/1
POLE3 Poa lettermanii Vasey Letterman's bluegrass 0/1
POMO Poa montevansii L. Kelso   0/1
POLI13 Poa ×limosa Scribn. & Williams (pro sp.) [pratensis × secunda] Lassen County bluegrass    
POFI Poa ×fibrata Swallen (pro sp.) [not hybrid]   0/1
POMA26 Poa macrantha Vasey seashore bluegrass 0/1
POMA6 Poa marcida A.S. Hitchc. withered bluegrass 0/1
PONA Poa napensis Beetle Napa bluegrass 0/1
PONE Poa nemoralis L. wood bluegrass 1/2
PONEI2 Poa nemoralis L. ssp. interior (Rydb.) W.A. Weber inland bluegrass    
POIN Poa interior Rydb.   1/1
PONE2 Poa nervosa (Hook.) Vasey Wheeler bluegrass 0/1
POOC Poa occidentalis Vasey New Mexico bluegrass 2/1
POPA Poa paludigena Fern. & Wieg. bog bluegrass 0/1
POPA2 Poa palustris L. fowl bluegrass 2/1
POCR7 Poa crocata Michx.   0/1
POTR19 Poa triflora Gilib.   0/1
POPA26 Poa paucispicula Scribn. & Merr. Alaska bluegrass 0/1
POPI2 Poa piperi A.S. Hitchc. Piper's bluegrass 2/0
POPR Poa pratensis L. Kentucky bluegrass 6/3
POPRP2 Poa pratensis L. ssp. pratensis Kentucky bluegrass    
POAN6 Poa angustifolia L.   2/0
POPR2 Poa pringlei Scribn. Pringle's bluegrass 1/1
PORE Poa reflexa Vasey & Scribn. ex Vasey nodding bluegrass 0/1
PORH Poa rhizomata A.S. Hitchc. rhizome bluegrass 1/1
POSA Poa saltuensis Fern. & Wieg. oldpasture bluegrass 0/1
PODE6 Poa debilis Torr.   0/1
POLA2 Poa languida A.S. Hitchc.   0/1
POSE Poa secunda J. Presl Sandberg bluegrass 9/1
POAM Poa ampla Merr.   1/1
POBU4 Poa buckleyana Nash   0/1
POCA Poa canbyi (Scribn.) T.J. Howell   0/1
POCO17 Poa confusa Rydb.   0/1
POGR Poa gracillima Vasey   0/1
POJU Poa juncifolia Scribn.   1/1
POLA15 Poa laevigata Scribn.   0/1
PONE3 Poa nevadensis Vasey ex Scribn.   1/1
POSC Poa scabrella (Thurb.) Benth. ex Vasey   0/1
POSI6 Poa sierrae J.T. Howell Sierra bluegrass 2/0
POST Poa stenantha Trin. northern bluegrass 0/1
POMA3 Poa macroclada Rydb.   0/1
POST6 Poa strictiramea A.S. Hitchc. Big Bend bluegrass 1/0
POIN2 Poa involuta A.S. Hitchc.   0/1
POSY Poa sylvestris Gray woodland bluegrass 1/3
POTR Poa tracyi Vasey Tracy's bluegrass 3/1
POTR2 Poa trivialis L. rough bluegrass 1/3
POUN Poa unilateralis Scribn. San Francisco bluegrass 0/1
POWH2 Poa wheeleri Vasey Wheeler's bluegrass 0/1
POWO Poa wolfii Scribn. Wolf's bluegrass 0/2
POEA Podistera eastwoodiae (Coult. & Rose) Mathias & Constance Eastwood's podistera 5/0
POCO3 Podocarpus coriaceus L.C. Rich. yucca plum pine 1/0
PONU9 Podocarpus nubigenus Lindl. Chilean podocarp 2/0
POTO4 Podocarpus totara G. Bennett ex D. Don totara 4/0
POPE Podophyllum peltatum L. mayapple 13/1
POCE3 Podostemum ceratophyllum Michx. hornleaf riverweed 0/1
PORI4 Podranea ricasoliana (Tanfani) Sprague Zimbabwe creeper 3/0
POAB2 Pogogyne abramsii J.T. Howell San Diego mesamint 4/0
PONU Pogogyne nudiuscula Gray Otay mesamint 4/0
POUR3 Pogonatum urnigerum (Hedw.) P. Beauv. pogonatum moss 3/0
POGON Pogonia Juss. pogonia 1/0
POOP Pogonia ophioglossoides (L.) Ker-Gawl. snakemouth orchid 12/1
POAN21 Pohlia annotina (Hedw.) Lindb. pohlia moss 2/0
POCR15 Pohlia cruda (Hedw.) Lindb. pohlia moss 4/0
PODR2 Pohlia drummondii (C. Müll.) Andrews Drummond's pohlia moss 6/0
POEL4 Pohlia elongata Hedw. elongate pohlia moss 1/0
POFI11 Pohlia filum (Schimp.) M?rt. pohlia moss 4/0
POME13 Pohlia melanodon (Brid.) Shaw pohlia moss 2/0
PONU70 Pohlia nutans (Hedw.) Lindb. pohlia moss 3/0
POOB6 Pohlia obtusifolia (Brid.) L. Koch obtuseleaf pohlia moss 9/0
POPR17 Pohlia proligera (Kindb. ex Breidl.) Lindb. ex Arnell pohlia moss 3/0
POWA70 Pohlia wahlenbergii (Web. & Mohr) Andrews Wahlenberg's pohlia moss 6/0
POFL20 Poitea florida (Vahl) Lavin wattapama 1/0
SAFL7 Sabinea florida (Vahl) DC.   1/0
POPA34 Poitea paucifolia (DC.) Lavin retama    
COPA15 Corynella paucifolia DC.   1/0
POPU19 Poitea punicea (Urban) Lavin caracol illo 2/0
PODO3 Polanisia dodecandra (L.) DC. redwhisker clammyweed 2/0
PODOD Polanisia dodecandra (L.) DC. ssp. dodecandra redwhisker clammyweed    
POGR17 Polanisia graveolens Raf.   1/1
PODOT Polanisia dodecandra (L.) DC. ssp. trachysperma (Torr. & Gray) Iltis sandyseed clammyweed    
POTR13 Polanisia trachysperma Torr. & Gray   3/1
POJA3 Polanisia jamesii (Torr. & Gray) Iltis James' clammyweed    
CRJA5 Cristatella jamesii Torr. & Gray   0/1
POLEM Polemonium L. Jacob's-ladder 1/0
POAC Polemonium acutiflorum Willd. ex Roemer & J.A. Schultes tall Jacob's-ladder 1/0
POCA3 Polemonium californicum Eastw. moving polemonium 3/0
POCH3 Polemonium chartaceum Mason Mason's Jacob's-ladder 1/0
POEL3 Polemonium elegans Greene elegant Jacob's-ladder 1/0
POEX Polemonium eximium Greene skypilot 4/0
POFO Polemonium foliosissimum Gray towering Jacob's-ladder 3/0
POMI Polemonium micranthum Benth. annual polemonium 1/0
POOC2 Polemonium occidentale Greene western polemonium 3/1
POOCO Polemonium occidentale Greene ssp. occidentale western polemonium 1/0
POPU3 Polemonium pulcherrimum Hook. Jacob's-ladder 5/0
PORE2 Polemonium reptans L. Greek valerian 4/1
POVA5 Polemonium vanbruntiae Britt. Vanbrunt's polemonium 0/1
POVI Polemonium viscosum Nutt. sticky polemonium 5/0
POTU4 Polianthes tuberosa L. tuberose 1/0
POIN3 Poliomintha incana (Torr.) Gray frosted mint 7/0
POWI Polyctenium williamsiae Rollins Washoe combleaf 2/0
POLYG Polygala L. polygala 4/0
POAC2 Polygala acanthoclada Gray desert polygala 4/0
POAL4 Polygala alba Nutt. white milkwort 2/1
POAM9 Polygala ambigua Nutt. whorled milkwort 0/1
POVEA Polygala verticillata L. var. ambigua (Nutt.) Wood   1/0
POBA Polygala barbeyana Chod. blue milkwort 2/0
POBR2 Polygala brevifolia Nutt. littleleaf milkwort 4/1
POCR Polygala cruciata L. drumheads 5/1
POCU5 Polygala curtissii Gray Curtiss' milkwort 4/1
POCY Polygala cymosa Walt. tall pinebarren milkwort 2/1
POGR11 Polygala grandiflora Walt. showy milkwort 1/0
POHE6 Polygala hecatantha Urban West Indian milkwort 1/0
POIN4 Polygala incarnata L. procession flower 4/1
POLU Polygala lutea L. orange milkwort 8/1
POMA8 Polygala mariana P. Mill. Maryland milkwort 0/1
PONA2 Polygala nana (Michx.) DC. candyroot 2/1
PONU2 Polygala nuttallii Torr. & Gray Nuttall's milkwort 1/1
POOB Polygala obscura Benth. velvetseed milkwort 2/0
POPA18 Polygala paniculata L. orosne 1/0
POPA5 Polygala paucifolia Willd. gaywings 6/1
POPE13 Polygala penaea L. crevajosa 1/0
POPO Polygala polygama Walt. racemed milkwort 1/1
PORA2 Polygala ramosa Ell. low pinebarren milkwort 3/1
POSA3 Polygala sanguinea L. purple milkwort 4/1
POVI15 Polygala viridescens L.   0/1
POSE3 Polygala senega L. Seneca snakeroot 2/1
POSU2 Polygala subspinosa S. Wats. spiny milkwort 8/0
POVE Polygala verticillata L. whorled milkwort 4/1
POLYG2 Polygonatum P. Mill. Solomon's seal 1/0
POBI2 Polygonatum biflorum (Walt.) Ell. smooth Solomon's seal 9/2
POBIC Polygonatum biflorum (Walt.) Ell. var. commutatum (J.A. & J.H. Schultes) Morong smooth Solomon's seal    
POCO7 Polygonatum commutatum (J.A. & J.H. Schultes) A. Dietr.   1/2
POAM3 Polygonella americana (Fisch. & C.A. Mey.) Small southern jointweed 0/1
POAR4 Polygonella articulata (L.) Meisn. coastal jointweed 2/1
POPO2 Polygonella polygama (Vent.) Engelm. & Gray October flower 1/0
POLYG4 Polygonum L. knotweed 2/0
POAM8 Polygonum amphibium L. water knotweed 8/2
POAME Polygonum amphibium L. var. emersum Michx. longroot smartweed 1/0
PEAM8 Persicaria amphibia (L.) S.F. Gray p.p.   1/1
PEMU11 Persicaria muehlenbergii (S. Wats.) Small   0/1
POAMS Polygonum amphibium L. var. stipulaceum Coleman water smartweed 1/0
POAR6 Polygonum arifolium L. halberdleaf tearthumb 1/1
TRAR6 Tracaulon arifolium (L.) Raf.   0/1
POAV Polygonum aviculare L. prostrate knotweed 3/2
POBE Polygonum bellardii All. narrowleaf knotweed    
PONE8 Polygonum neglectum Bess.   0/1
POBI5 Polygonum bistorta L. meadow bistort 2/0
POBI6 Polygonum bistortoides Pursh American bistort 5/1
BIBI5 Bistorta bistortoides (Pursh) Small   4/0
POBU2 Polygonum buxiforme Small box knotweed 0/1
POCA21 Polygonum capitatum Buch.-Ham. ex D. Don pinkhead smartweed 2/0
POCA8 Polygonum careyi Olney Carey's smartweed    
PECA30 Persicaria careyi (Olney) Greene   0/1
POCE4 Polygonum cespitosum Blume, nom. inq. Oriental ladysthumb 1/0
POCA49 Polygonum caespitosum Blume   0/1
POCI Polygonum cilinode Michx. fringed black bindweed 1/0
TICI3 Tiniaria cilinodis (Michx.) Small   0/1
POCO10 Polygonum convolvulus L. black bindweed 2/0
POCOC2 Polygonum convolvulus L. var. convolvulus black bindweed    
TICO5 Tiniaria convolvulus (L.) Webb & Moq.   0/1
POCU6 Polygonum cuspidatum Sieb. & Zucc. Japanese knotweed 2/0
PLZU Pleuropterus zuccarinii (Small) Small   0/1
PODA Polygonum davisiae Brewer ex Gray Davis' knotweed 3/0
PODO4 Polygonum douglasii Greene Douglas' knotweed 4/1
PODOM2 Polygonum douglasii Greene ssp. majus (Meisn.) J.C. Hickman large knotweed 1/0
POER2 Polygonum erectum L. erect knotweed 0/1
POFO2 Polygonum fowleri B.L. Robins. Fowler's knotweed 0/1
POGL10 Polygonum glabrum Willd. denseflower knotweed    
PEPO8 Persicaria portoricensis (Bertero ex Small) Small   0/1
PODE2 Polygonum densiflorum Meisn.   1/1
POGL7 Polygonum glaucum Nutt. seaside knotweed    
POMA27 Polygonum maritimum auct. non L. [misapplied]   0/1
POHY Polygonum hydropiper L. marshpepper knotweed 0/1
PEHY6 Persicaria hydropiper (L.) Opiz   0/1
POHY2 Polygonum hydropiperoides Michx. swamp smartweed 3/1
PEHY7 Persicaria hydropiperoides (Michx.) Small   0/1
PEOP3 Persicaria opelousana (Riddell ex Small) Small   0/1
PEPE28 Persicaria persicarioides (Kunth) Small   0/1
POOP2 Polygonum opelousanum Riddell ex Small   1/0
POLA4 Polygonum lapathifolium L. curlytop knotweed 1/1
PELA22 Persicaria lapathifolia (L.) S.F. Gray   0/1
POLE6 Polygonum leptocarpum B.L. Robins. narrowpoint knotweed 0/1
POOR2 Polygonum orientale L. kiss me over the garden gate 2/0
PEOR9 Persicaria orientalis (L.) Assenov   0/1
POPA7 Polygonum paronychia Cham. & Schlecht. beach knotweed 5/0
POPE2 Polygonum pensylvanicum L. Pennsylvania smartweed 5/1
PELO7 Persicaria longistyla (Small) Small   0/1
PEPE19 Persicaria pensylvanica (L.) Small   0/1
POPE3 Polygonum persicaria L. spotted ladysthumb 4/1
PEMA24 Persicaria maculosa S.F. Gray   2/0
PEPE18 Persicaria persicaria (L.) Small   0/1
POPH Polygonum phytolaccifolium Meisn. ex Small poke knotweed 1/0
POPO5 Polygonum polystachyum Wallich ex Meisn. cultivated knotweed 1/0
POPU5 Polygonum punctatum Ell. dotted smartweed 3/1
POPUP4 Polygonum punctatum Ell. var. punctatum dotted smartweed    
PEPU18 Persicaria punctata (Ell.) Small   0/1
PORA3 Polygonum ramosissimum Michx. bushy knotweed 0/1
PORAP Polygonum ramosissimum Michx. var. prolificum Small bushy knotweed    
POPR10 Polygonum prolificum (Small) B.L. Robins.   0/1
PORAR Polygonum ramosissimum Michx. var. ramosissimum bushy knotweed    
POAT5 Polygonum atlanticum (B.L. Robins.) Bickn. p.p.   0/1
POEX4 Polygonum exsertum auct. p.p., non Small   0/1
POTR17 Polygonum triangulum Bickn.   0/1
POSA5 Polygonum sagittatum L. arrowleaf tearthumb 2/1
POSAG Polygonum sagittatum L. var. gracilentum Fern.   1/0
TRSA4 Tracaulon sagittatum (L.) Small   0/1
POSC3 Polygonum scandens L. climbing false buckwheat 2/1
POSCC Polygonum scandens L. var. cristatum (Engelm. & Gray) Gleason climbing false buckwheat    
TICR2 Tiniaria cristata (Engelm. & Gray) Small   0/1
POSCD Polygonum scandens L. var. dumetorum (L.) Gleason climbing false buckwheat    
TIDU Tiniaria dumetorum (L.) Opiz   0/1
POSCS Polygonum scandens L. var. scandens climbing false buckwheat    
TISC Tiniaria scandens (L.) Small   0/1
POSE6 Polygonum setaceum Baldw. bog smartweed 1/1
PESE15 Persicaria setacea (Baldw.) Small   0/1
POSH Polygonum shastense Brewer ex Gray Shasta knotweed 3/0
POTE2 Polygonum tenue Michx. pleatleaf knotweed 0/1
POVI2 Polygonum virginianum L. jumpseed 5/1
TOVI2 Tovara virginiana (L.) Raf.   1/1
POVI3 Polygonum viviparum L. alpine bistort 1/1
BIVI2 Bistorta vivipara (L.) S.F. Gray   1/1
POCA11 Polymnia canadensis L. whiteflower leafcup 5/1
POLA8 Polymnia laevigata Beadle Tennessee leafcup 1/0
POSO4 Polymnia sonchifolia Poeppig & Endl. yacon 1/0
POLYP Polypodium L. polypody 3/0
POCA12 Polypodium californicum Kaulfuss California polypody 1/0
POGL8 Polypodium glycyrrhiza D.C. Eat. licorice fern 1/0
POSC4 Polypodium scouleri Hook. & Grev. leathery polypody 5/0
POVI7 Polypodium virginianum L. rock polypody 2/0
POVU3 Polypodium vulgare auct. p.p., non L.   0/1
POAU3 Polypogon australis Brongn. Chilean rabbitsfoot grass 2/1
POEL Polypogon elongatus Kunth streambank rabbitsfoot grass 2/1
POFU7 Polypogon fugax Nees ex Steud. Asia Minor bluegrass 1/0
POIN7 Polypogon interruptus Kunth ditch rabbitsfoot grass 0/1
POMA10 Polypogon maritimus Willd. Mediterranean rabbitsfoot grass 1/1
POMO5 Polypogon monspeliensis (L.) Desf. annual rabbitsfoot grass 4/2
POVI9 Polypogon viridis (Gouan) Breistr. beardless rabbitsfoot grass    
AGSE2 Agrostis semiverticillata (Forssk.) C. Christens.   1/1
AGVE2 Agrostis verticillata Vill.   2/0
POPR4 Polypremum procumbens L. juniper leaf 3/1
POCU14 Polyscias cumingiana (K. Presl) Fernandez-Villar Malaysian aralia 1/0
POAC4 Polystichum acrostichoides (Michx.) Schott Christmas fern 8/2
POAN2 Polystichum andersonii Hopkins Anderson's hollyfern 1/0
POBR4 Polystichum braunii (Spenner) Fée Braun's hollyfern 0/1
POCA25 Polystichum californicum (D.C. Eat.) Diels California swordfern 1/0
POKR Polystichum kruckebergii W.H. Wagner Kruckeberg's hollyfern 2/0
POLO4 Polystichum lonchitis (L.) Roth northern hollyfern 1/1
POMU Polystichum munitum (Kaulfuss) K. Presl western swordfern 4/0
POPO22 Polystichum polyblepharum C. Presl Korean tasselfern 3/0
POSC5 Polystichum scopulinum (D.C. Eat.) Maxon mountain hollyfern 2/1
PONU4 Polytaenia nuttallii DC. Nuttall's prairie parsley 3/0
PLNU Pleiotaenia nuttallii (DC.) Coult. & Rose   0/1
POTE3 Polytaenia texana (Coult. & Rose) Mathias & Constance Texas prairie parsley 1/0
POIN31 Polytrias indica (Houtt.) Veldkamp Java grass    
POPR7 Polytrias praemorsa (Nees) Hack.   1/0
POAL24 Polytrichastrum alpinum (Hedw.) G. L. Sm. alpine polytrichastrum moss 5/0
POCO38 Polytrichum commune Hedw. polytrichum moss 11/0
POFO6 Polytrichum formosum Hedw. polytrichum moss 9/0
POJU70 Polytrichum juniperinum Hedw. juniper polytrichum moss 2/0
POLO18 Polytrichum longisetum Brid. polytrichum moss 4/0
POPA29 Polytrichum pallidisetum Funck polytrichum moss 11/0
POPI10 Polytrichum piliferum Hedw. polytrichum moss 4/0
POSE16 Polytrichum sexangulare Brid. polytrichum moss    
POSE17 Polytrichastrum sexangulare (Brid.) G. L. Sm.   3/0
POST70 Polytrichum strictum Brid. polytrichum moss 4/0
POJA5 Pomaria jamesii (Torr. & Gray) Walp. James' holdback    
HOJA3 Hoffmannseggia jamesii Torr. & Gray   1/1
POTR4 Poncirus trifoliata (L.) Raf. hardy orange 2/0
PONTE Pontederia L. pickerelweed 1/0
POCO14 Pontederia cordata L. pickerelweed 8/2
POLA17 Pontederia lanceolata Nutt.   1/0
POPUL Populus L. cottonwood 4/0
POAC5 Populus ×acuminata Rydb. (pro sp.) [angustifolia × deltoides] lanceleaf cottonwood 0/1
POAL7 Populus alba L. white poplar 4/1
POAN3 Populus angustifolia James narrowleaf cottonwood 2/2
POBA2 Populus balsamifera L. balsam poplar 7/2
POBAB2 Populus balsamifera L. ssp. balsamifera balsam poplar    
POCA33 Populus candicans Ait.   0/1
POTA2 Populus tacamahaca Mill.   2/0
POBAT Populus balsamifera L. ssp. trichocarpa (Torr. & Gray ex Hook.) Brayshaw black cottonwood 10/0
POTR15 Populus trichocarpa Torr. & Gray ex Hook.   2/0
POCA19 Populus ×canadensis Moench (pro sp.) [deltoides × nigra] Carolina poplar    
POEU80 Populus euramericana Guinier   4/0
PODE3 Populus deltoides Bartr. ex Marsh. eastern cottonwood 26/3
PODEM Populus deltoides Bartr. ex Marsh. ssp. monilifera (Ait.) Eckenwalder plains cottonwood 3/0
POSA8 Populus sargentii Dode   0/1
PODEW Populus deltoides Bartr. ex Marsh. ssp. wislizeni (S. Wats.) Eckenwalder Rio Grande cottonwood 1/0
POFRW2 Populus fremontii S. Wats. var. wislizeni S. Wats.   1/0
POFR2 Populus fremontii S. Wats. Fremont cottonwood 7/0
POFRF3 Populus fremontii S. Wats. ssp. fremontii Fremont cottonwood 1/0
POGR4 Populus grandidentata Michx. bigtooth aspen 4/1
POHE4 Populus heterophylla L. swamp cottonwood 3/1
PONI Populus nigra L. Lombardy poplar 2/1
POTO7 Populus tomentosa Carrière Chinese white poplar 1/0
POTR10 Populus tremula L. European aspen 2/0
POTR5 Populus tremuloides Michx. quaking aspen 18/2
POPA10 Poranopsis paniculata (Roxb.) Roberty bridal bouquet 3/0
POPL11 Porella platyphylla (L.) Pfeiff. 4/0
POGR5 Porophyllum gracile Benth. slender poreleaf 4/0
POCA15 Porterella carnosula (Hook. & Arn.) Torr. fleshy porterella 3/0
POCA22 Portulaca caulerpoides Britt. & P. Wilson ex Britt. Puerto Rico purslane 1/0
POGR7 Portulaca grandiflora Hook. rose moss 0/1
POOL Portulaca oleracea L. little hogweed 4/1
PORE4 Portulaca retusa Engelm.   0/1
POPI3 Portulaca pilosa L. kiss me quick 1/1
POQU2 Portulaca quadrifida L. chickenweed 2/0
PORU14 Portulaca rubricaulis Kunth redstem purslane 2/0
POUM Portulaca umbraticola Kunth wingpod purslane 2/0
POAL8 Potamogeton alpinus Balbis alpine pondweed 0/1
POAM5 Potamogeton amplifolius Tuckerman largeleaf pondweed 1/2
POCO12 Potamogeton confervoides Reichenb. Tuckerman's pondweed 0/1
POCR3 Potamogeton crispus L. curly pondweed 1/2
PODI Potamogeton diversifolius Raf. waterthread pondweed 1/2
POEP2 Potamogeton epihydrus Raf. ribbonleaf pondweed 2/2
POFA Potamogeton ×faxonii Morong (pro sp.) [illinoensis × nodosus] 0/1
POFO3 Potamogeton foliosus Raf. leafy pondweed 1/1
POFR3 Potamogeton friesii Rupr. Fries' pondweed 0/1
POGR8 Potamogeton gramineus L. variableleaf pondweed 1/1
POHI4 Potamogeton hillii Morong Hill's pondweed 0/1
POIL Potamogeton illinoensis Morong Illinois pondweed 0/1
POAN10 Potamogeton angustifolius Bercht. & K. Presl   0/1
POHE13 Potamogeton heterophyllus Schreb.   0/1
POLU4 Potamogeton lucens auct. non L. [misapplied]   0/1
POMY Potamogeton ×mysticus Morong (pro sp.) [perfoliatus × pusillus] 0/1
PONA4 Potamogeton natans L. floating pondweed 1/1
PONO2 Potamogeton nodosus Poir. longleaf pondweed 3/0
POAM11 Potamogeton americanus Cham. & Schlecht.   0/1
POOA Potamogeton oakesianus J.W. Robbins Oakes' pondweed 0/1
POOB2 Potamogeton obtusifolius Mert. & Koch bluntleaf pondweed 0/1
POPE7 Potamogeton perfoliatus L. claspingleaf pondweed 0/1
POPR5 Potamogeton praelongus Wulfen whitestem pondweed 1/2
POPU6 Potamogeton pulcher Tuckerman spotted pondweed 0/1
POPU7 Potamogeton pusillus L. small pondweed 1/1
POPUG4 Potamogeton pusillus L. ssp. gemmiparus (J.W. Robbins) Haynes & C.B. Hellquist small pondweed    
POGE3 Potamogeton gemmiparus (J.W. Robbins) J.W. Robbins ex Morong   0/1
POPUP5 Potamogeton pusillus L. ssp. pusillus small pondweed    
POLA5 Potamogeton lateralis Morong p.p.   0/1
PORI2 Potamogeton richardsonii (Benn.) Rydb. Richardson's pondweed 1/0
PORO2 Potamogeton robbinsii Oakes Robbins' pondweed 1/1
POSP4 Potamogeton ×spathuliformis (J.W. Robbins) Morong (pro sp.) [gramineus × illinoensis]    
POVA10 Potamogeton varians Morong   0/1
POSP3 Potamogeton spirillus Tuckerman spiral pondweed    
PODI10 Potamogeton dimorphus Raf.   0/1
POST2 Potamogeton strictifolius Benn. narrowleaf pondweed    
PORU11 Potamogeton rutilus auct. non Wolfgang [misapplied]   0/1
POVA3 Potamogeton vaseyi J.W. Robbins Vasey's pondweed 0/1
POZO Potamogeton zosteriformis Fern. flatstem pondweed 2/0
POCO18 Potamogeton compressus auct. non L. [misapplied]   0/1
POTEN Potentilla L. cinquefoil 2/0
POAN7 Potentilla anglica Laicharding English cinquefoil    
POPR13 Potentilla procumbens Sibthorp   0/1
POAR8 Potentilla argentea L. silver cinquefoil 0/1
POAR7 Potentilla arguta Pursh tall cinquefoil 5/1
POARA4 Potentilla arguta Pursh ssp. arguta tall cinquefoil    
DRAG Drymocallis agrimonioides (Pursh) Rydb.   0/1
DRAR8 Drymocallis arguta (Pursh) Rydb.   2/0
POBI17 Potentilla bimundorum Soják staghorn cinquefoil    
POMU3 Potentilla multifida auct. non L. [misapplied]   0/1
POBI10 Potentilla bipinnatifida Dougl. ex Hook. tansy cinquefoil 0/1
POCA17 Potentilla canadensis L. dwarf cinquefoil 4/1
POCAC2 Potentilla canadensis L. var. canadensis dwarf cinquefoil    
POPU13 Potentilla pumila Poir.   0/1
POCI7 Potentilla cinerea Willd. ex Schlect. abbotswood potentilla 2/0
POCO13 Potentilla concinna Richards. elegant cinquefoil 1/0
POCOB Potentilla concinna Richardson var. bicrenata (Rydb.) S.L. Welsh & B.C. Johnst. elegant cinquefoil    
POBI12 Potentilla bicrenata Rydb.   3/0
PODI2 Potentilla diversifolia Lehm. varileaf cinquefoil 2/1
PODRD Potentilla drummondii Lehm. ssp. drummondii Drummond's cinquefoil 1/0
POEF Potentilla effusa Dougl. ex Lehm. branched cinquefoil 0/1
POFL3 Potentilla flabellifolia Hook. ex Torr. & Gray high mountain cinquefoil 1/0
POGL9 Potentilla glandulosa Lindl. sticky cinquefoil 4/1
POGLN Potentilla glandulosa Lindl. ssp. nevadensis (S. Wats.) Keck Nevada cinquefoil 3/0
POGLP Potentilla glandulosa Lindl. ssp. pseudorupestris (Rydb.) Keck sticky cinquefoil 2/0
POGR9 Potentilla gracilis Dougl. ex Hook. slender cinquefoil 5/1
POGRF2 Potentilla gracilis Dougl. ex Hook. var. fastigiata (Nutt.) S. Wats. slender cinquefoil 1/0
POGRN2 Potentilla gracilis Dougl. ex Hook. var. nuttallii (Lehm.) Sheldon   1/0
POGRF Potentilla gracilis Dougl. ex Hook. var. flabelliformis (Lehm.) Nutt. ex Torr. & Gray slender cinquefoil    
POFL4 Potentilla flabelliformis Lehm.   1/0
POHI6 Potentilla hippiana Lehm. woolly cinquefoil 4/1
POIN8 Potentilla intermedia L. downy cinquefoil 0/1
PONA6 Potentilla nana Willd. ex Schlecht. arctic cinquefoil    
POEM2 Potentilla emarginata Pursh   0/1
PONE20 Potentilla neumanniana Aschers. spring cinquefoil 3/0
POMA22 Potentilla maculata Pourret   0/1
PONI2 Potentilla nivea L. snow cinquefoil 1/1
PONO3 Potentilla norvegica L. Norwegian cinquefoil 5/0
PONOM Potentilla norvegica L. ssp. monspeliensis (L.) Aschers. & Graebn. Norwegian cinquefoil    
POMO13 Potentilla monspeliensis L.   0/1
POPA15 Potentilla paradoxa Nutt. Paradox cinquefoil 0/1
PONI3 Potentilla nicolletii (S. Wats.) Sheldon   0/1
POPE23 Potentilla pectinisecta Rydb. combleaf cinquefoil 1/0
POPE8 Potentilla pensylvanica L. Pennsylvania cinquefoil 3/1
POPEL Potentilla pensylvanica L. var. litoralis (Rydb.) Boivin Pennsylvania cinquefoil    
POPE11 Potentilla pectinata Raf.   0/1
POPL Potentilla plattensis Nutt. Platte River cinquefoil 1/1
POPU9 Potentilla pulcherrima Lehm. beautiful cinquefoil 1/0
PORE5 Potentilla recta L. sulphur cinquefoil 8/1
PORI3 Potentilla rivalis Nutt. brook cinquefoil    
POMI6 Potentilla millegrana Engelm. ex Lehm.   0/1
POPE12 Potentilla pentandra Engelm.   0/1
PORO3 Potentilla robbinsiana Oakes ex Rydb. dwarf mountain cinquefoil 1/1
PORU3 Potentilla rubricaulis Lehm. Rocky Mountain cinquefoil 2/0
POSI2 Potentilla simplex Michx. common cinquefoil 5/1
POTH2 Potentilla thurberi Gray scarlet cinquefoil 3/0
POVI4 Potentilla villosa Pallas ex Pursh villous cinquefoil 1/0
POBR18 Pottia bryoides (Dicks.) Mitt. pottia moss 4/0
PODA3 Pottia davalliana (Sm. in Drake) C. Jens. Davall's pottia moss 4/0
POCO37 Pottia conica (Schwaegr.) Fürnr. ex Par.   1/0
POIN29 Pottia intermedia (Turn.) Fürnr. intermediate pottia moss 6/0
POLA16 Pottia lanceolata (Hedw.) C. Müll. lance pottia moss 5/0
POTR21 Pottia truncata (Hedw.) Fürnr. ex B.S.G. truncate pottia moss 4/0
PRQU2 Preissia quadrata (Scop.) Nees 2/0
PRAL2 Prenanthes alba L. white rattlesnakeroot 2/0
NAAL2 Nabalus albus (L.) Hook.   0/1
PRAL3 Prenanthes altissima L. tall rattlesnakeroot 1/0
NAAL3 Nabalus altissimus (L.) Hook.   0/1
PRAS Prenanthes aspera Michx. rough rattlesnakeroot    
NAAS Nabalus asperus (Michx.) Torr. & Gray   0/1
PRAU Prenanthes autumnalis Walt. slender rattlesnakeroot 2/0
NAVI3 Nabalus virgatus (Michx.) DC.   0/1
PRBO2 Prenanthes boottii (DC.) Gray alpine rattlesnakeroot    
NABO Nabalus boottii DC.   0/1
PRCR Prenanthes crepidinea Michx. nodding rattlesnakeroot 1/0
NACR Nabalus crepidineus (Michx.) DC.   0/1
PRNA Prenanthes nana (Bigelow) Torr. dwarf rattlesnakeroot    
NANA Nabalus nanus (Bigelow) DC.   0/1
PRRAR3 Prenanthes racemosa Michx. var. racemosa purple rattlesnakeroot    
NARA2 Nabalus racemosus (Michx.) DC.   0/1
PRSE Prenanthes serpentaria Pursh cankerweed 1/0
NASE3 Nabalus serpentarius (Pursh) Hook.   0/1
PRTR Prenanthes trifoliolata (Cass.) Fern. gall of the earth 1/0
NATR Nabalus trifoliolatus Cass.   0/1
PRIMU Primula L. primrose 5/0
PRBA3 Primula baileyana Kingdon-Ward 1/0
PRCA3 Primula capillaris N.& A. Holmgren Ruby Mountain primrose 3/0
PRCU Primula cuneifolia Ledeb. wedgeleaf primrose 1/0
PRCUC2 Primula cusickiana (A. Gray) A. Gray var. cusickiana Cusick's primrose 4/0
PRCUN Primula cusickiana (Gray) Gray var. nevadensis (N. Holmgren) N. Holmgren & S. Kelso Nevada primrose    
PRNE Primula nevadensis N. Holmgren   4/0
PREG Primula egaliksensis Wormsk. ex Hornem. Greenland primrose 0/1
PREL3 Primula elatior (L.) Hill oxlip 2/0
PRIN Primula incana M.E. Jones silvery primrose 1/1
PRLA Primula laurentiana Fern. birdeye primrose    
PRFA3 Primula farinosa auct. non L. [misapplied]   0/1
PRMI Primula mistassinica Michx. Mistassini primrose 1/1
PRPA Primula parryi Gray Parry's primrose 7/0
PRPU2 Primula pulverulenta Duthie 1/0
PRSP2 Primula specuicola Rydb. cavedwelling primrose 1/0
PRSU Primula suffrutescens Gray Sierra primrose 6/0
PRVE2 Primula veris L. cowslip primrose 2/0
PRCA2 Pristimera caribaea (Urban) A.C. Sm. bejuco prieto 1/0
PRMU3 Pritchardia munroi Rock Kamalo pritchardia 2/0
PRAL4 Proboscidea althaeifolia (Benth.) Dcne. desert unicorn-plant 1/0
PRLO Proboscidea louisianica (P. Mill.) Thellung ram's horn 4/0
PRLOF Proboscidea louisianica (P. Mill.) Thellung ssp. fragrans (Lindl.) Bretting ram's horn    
PRFR3 Proboscidea fragrans (Lindl.) Dcne.   2/0
PRLOL Proboscidea louisianica (P. Mill.) Thellung ssp. louisianica ram's horn    
MALO6 Martynia louisiana Miller [orthographic error]   0/1
PRPA2 Proboscidea parviflora (Woot.) Woot. & Standl. doubleclaw 2/0
PRCR2 Prockia crucis P. Br. ex L. guasimilla 1/0
PROSA Prosartes D. Don 1/0
PRHOH Prosartes hookeri Torr. var. hookeri drops-of-gold    
DIHO3 Disporum hookeri (Torr.) G. Nicholson   2/0
PRHOO Prosartes hookeri Torr. var. oregana (S. Wats.) Kartesz Oregon drops of gold 2/0
PRLA9 Prosartes lanuginosa (Michx.) D. Don yellow fairybells    
DILA5 Disporum lanuginosum (Michx.) Nichols.   5/1
PRMA14 Prosartes maculata (Buckl.) Gray yellow mandarin    
DIMA2 Disporum maculatum (Buckl.) Britt.   3/0
PRSM Prosartes smithii (Hook.) Utech, Shinwari & Kawano largeflower fairybells    
DISM2 Disporum smithii (Hook.) Piper   2/0
PRTR4 Prosartes trachycarpa S. Wats. roughfruit fairybells 1/0
DITR2 Disporum trachycarpum (S. Wats.) Benth. & Hook. f.   0/1
PRPA3 Proserpinaca palustris L. marsh mermaidweed 2/2
PRPE Proserpinaca pectinata Lam. combleaf mermaidweed 2/2
PROSO Prosopis L. mesquite 0/2
PRAF2 Prosopis africana (Guillemin, Perrottet, & A. Rich.) Taubert African mesquite 1/0
PRAL8 Prosopis alba Griseb. algarrobo blanco 1/0
PRCA11 Prosopis campestris Griseb. 1/0
PRCH2 Prosopis chilensis (Molina) Stuntz algarrobo 4/0
PRDE4 Prosopis denudans Benth. 1/0
PRGL2 Prosopis glandulosa Torr. honey mesquite 3/1
PRGLT Prosopis glandulosa Torr. var. torreyana (L. Benson) M.C. Johnston western honey mesquite 5/0
PRJUT Prosopis juliflora (Sw.) DC. var. torreyana L. Benson   2/0
PRJU3 Prosopis juliflora (Sw.) DC. mesquite 7/0
PRKU2 Prosopis kuntzei Harms ex Hassler 1/0
PRNI3 Prosopis nigra Griseb. ex Hieron. algarrobo negro 1/0
PRPA10 Prosopis palmeri S. Wats. 1/0
PRPU Prosopis pubescens Benth. screwbean mesquite 6/0
PRREC Prosopis reptans Benth. var. cinerascens (Gray) Burkart tornillo    
PRCI2 Prosopis cinerascens (Gray) Benth.   1/0
PRSE5 Prosopis sericantha Gill. ex Hook. 1/0
PRCOC Prosthechea cochleata (L.) W.E. Higgins var. cochleata clamshell orchid    
EPCO3 Epidendrum cochleatum L.   1/0
PROTE Protea L. protea 1/0
PRCY2 Protea cynaroides (L.) L. king protea 3/0
PRVU Prunella vulgaris L. common selfheal 14/2
PRVUL2 Prunella vulgaris L. ssp. lanceolata (W. Bart.) Hultén lance selfheal 1/0
PRUNU Prunus L. plum 4/1
PRAL5 Prunus alleghaniensis Porter Allegheny plum 1/1
PRALD Prunus alleghaniensis Porter var. davisii (W. Wight) Sarg. Davis' plum 1/0
PRAM Prunus americana Marsh. American plum 5/2
PRAN2 Prunus andersonii Gray desert peach 11/0
PRAN3 Prunus angustifolia Marsh. Chickasaw plum 5/1
PRAR3 Prunus armeniaca L. apricot 4/0
PRAV Prunus avium (L.) L. sweet cherry 1/1
PRCA Prunus caroliniana Ait. Carolina laurelcherry 3/0
PRCE2 Prunus cerasifera Ehrh. cherry plum 1/0
PRCE Prunus cerasus L. sour cherry 0/1
PRDO Prunus domestica L. European plum 1/0
PRDOI Prunus domestica L. var. insititia (L.) Fiori & Paoletti European plum    
PRIN8 Prunus insititia L.   0/1
PREM Prunus emarginata (Dougl. ex Hook.) D. Dietr. bitter cherry 10/0
PREME Prunus emarginata (Dougl. ex Hook.) D. Dietr. var. emarginata bitter cherry 2/0
PREMM Prunus emarginata (Dougl. ex Hook.) D. Dietr. var. mollis (Dougl. ex Hook.) Brewer bitter cherry 8/0
PRFA Prunus fasciculata (Torr.) Gray desert almond 1/0
PRFAF Prunus fasciculata (Torr.) Gray var. fasciculata desert almond 2/0
PRFR Prunus fremontii S. Wats. desert apricot 1/0
PRFR2 Prunus fruticosa Pallas European dwarf cherry 1/0
PRGL80 Prunus glandulosa Thunb. flowering almond 1/0
PRGR Prunus gracilis Engelm. & Gray Oklahoma plum 1/1
PRHA Prunus havardii (W. Wight) S.C. Mason Havard's plum 1/0
PRHO Prunus hortulana Bailey hortulan plum 1/1
PRIL Prunus ilicifolia (Nutt. ex Hook. & Arn.) D. Dietr. hollyleaf cherry 8/0
PRJA Prunus japonica Thunb. ex Murray Japanese bush cherry 1/0
PRLA5 Prunus laurocerasus L. cherry laurel 1/0
PRLU Prunus lusitanica L. Portugal laurel 2/0
PRMA9 Prunus maackii Rupr. Amur chokecherry 4/0
PRMA Prunus mahaleb L. Mahaleb cherry 1/1
PRMA2 Prunus maritima Marsh. beach plum 3/1
PRMAG Prunus maritima Marsh. var. gravesii (Small) G.J. Anderson Graves' plum    
PRGR2 Prunus gravesii Small   0/1
PRME Prunus mexicana S. Wats. Mexican plum 1/0
PRAML2 Prunus americana Marsh. var. lanata Sudsworth   1/0
PRMI2 Prunus minutiflora Engelm. Texas almond 1/0
PRNI Prunus nigra Ait. Canadian plum 1/1
PRPA5 Prunus padus L. European bird cherry 1/0
PRPE2 Prunus pensylvanica L. f. pin cherry 0/1
PRPE3 Prunus persica (L.) Batsch peach 3/0
AMPE3 Amygdalus persica L.   0/1
PRPU3 Prunus pumila L. sandcherry 1/1
PRPUB Prunus pumila L. var. besseyi (Bailey) Gleason western sandcherry    
PRBE2 Prunus besseyi Bailey   5/1
PRRI Prunus rivularis Scheele creek plum    
PRRE3 Prunus reverchonii Sarg.   1/0
PRSA3 Prunus salicina Lindley Japanese plum 1/0
PRSE2 Prunus serotina Ehrh. black cherry 12/0
PRSES Prunus serotina Ehrh. var. serotina black cherry 1/0
PRSEV Prunus serotina Ehrh. var. virens (Woot. & Standl.) McVaugh black cherry    
PRVI3 Prunus virens (Woot. & Standl.) Shreve   1/0
PRSE3 Prunus serrulata Lindl. Japanese flowering cherry 1/0
PRSP Prunus spinosa L. blackthorn 1/0
PRSU2 Prunus subcordata Benth. Klamath plum 6/0
PRSU4 Prunus subhirtella Miq. winter-flowering cherry 1/0
PRSU3 Prunus susquehanae hort. ex Willd. Sesquehana sandcherry    
PRCU3 Prunus cuneata Raf.   0/1
PRTE5 Prunus tenella Batsch dwarf Russian almond 1/0
PRTO80 Prunus tomentosa Thunb. Nanking cherry 2/0
PRUM Prunus umbellata Ell. hog plum 4/0
PRVI Prunus virginiana L. chokecherry 10/2
PRVID Prunus virginiana L. var. demissa (Nutt.) Torr. western chokecherry 3/0
PRVIM Prunus virginiana L. var. melanocarpa (A. Nels.) Sarg. black chokecherry    
PAME5 Padus melanocarpa (A. Nels.) Shafer   0/1
PRME2 Prunus melanocarpa (A. Nels.) Rydb.   1/0
PRVIV Prunus virginiana L. var. virginiana chokecherry    
PANA3 Padus nana (Du Roi) M. Roemer   0/1
PAVI11 Padus virginiana (L.) P. Mill.   0/1
PSJU3 Psathyrostachys juncea (Fisch.) Nevski Russian wildrye 1/0
PSRA Psathyrotes ramosissima (Torr.) Gray velvet turtleback 5/0
PSUM2 Pseudabutilon umbellatum (L.) Fryxell umbrella Indian mallow 1/0
PSSA2 ×Pseudelymus saxicola (Scribn. & J.G. Sm.) Barkworth & D.R. Dewey [Elymus elymoides × Pseudoroegneria spicata] foxtail wheatgrass    
AGSA2 Agropyron saxicola (Scribn. & J.G. Sm.) Piper   0/1
PSNI4 Pseudephemerum nitidum (Hedw.) Loeske pseudephemerum moss 4/0
PSBA Pseudobahia bahiifolia (Benth.) Rydb. Hartweg's golden sunburst 1/0
PSTU70 Pseudocalliergon turgescens (T. Jens.) Loeske pseudocalliergon moss    
SCTU70 Scorpidium turgescens (T. Jens.) Loeske   4/0
PSHO3 Pseudocrossidium hornschuchianum (Schultz) Zand. Hornschuch's pseudocrossidium moss 6/0
PSRE4 Pseudocrossidium revolutum (Brid. in Schrad.) Zand. pseudocrossidium moss 6/0
PSSI4 Pseudocydonia sinensis (Thouin) Schneid. Chinese-quince    
CHSI7 Chaenomeles sinensis (Thouin) Koehne   1/0
PSLO3 Pseudocymopterus longiradiatus Mathias, Constance & Theobald TransPecos false mountainparsley 2/0
PSMO Pseudocymopterus montanus (Gray) Coult. & Rose alpine false springparsley 3/0
PSBI3 Pseudognaphalium biolettii A. Anderb. two-color rabbit-tobacco 5/0
PSCA13 Pseudognaphalium californicum (DC.) A. Anderb. ladies' tobacco 2/0
PSHE4 Pseudognaphalium helleri (Britt.) A. Anderb. Heller's cudweed 2/0
PSHEH7 Pseudognaphalium helleri (Britt.) A. Anderb. ssp. helleri Heller's cudweed    
GNHE Gnaphalium helleri Britt.   0/1
PSMA11 Pseudognaphalium macounii (Greene) Kartesz Macoun's cudweed    
GNDE Gnaphalium decurrens Ives, non L.   0/1
PSOB3 Pseudognaphalium obtusifolium (L.) Hilliard & B.L. Burtt rabbit-tobacco 1/0
PSOBO Pseudognaphalium obtusifolium (L.) Hilliard & Burtt ssp. obtusifolium rabbit-tobacco 4/0
GNOB Gnaphalium obtusifolium L.   3/1
PSST7 Pseudognaphalium stramineum (Kunth) A. Anderb. cottonbatting plant 5/0
PSCH Pseudogynoxys chenopodioides Kunth Mexican flamevine 3/0
PSKA2 Pseudolarix kaempferi (Lamb.) Gordon golden larch 2/0
PSINI Pseudoleskea incurvata (Hedw.) Loeske var. incurvata pseudoleskea moss    
LEIN23 Lescuraea incurvata (Hedw.) Lawt.   3/0
PSLO6 Pseudolysimachion longifolium (L.) Opiz longleaf speedwell    
VELO2 Veronica longifolia L.   1/0
PSLA6 Pseudopanax laetus (Kirk) Philipson shrub panax 2/0
PSSP6 Pseudoroegneria spicata (Pursh) A. Löve bluebunch wheatgrass 2/0
PSSPI Pseudoroegneria spicata (Pursh) A. Löve ssp. inermis (Scribn. & J.G. Sm.) A. Löve beardless wheatgrass    
AGIN5 Agropyron inerme (Scribn. & J.G. Sm.) Rydb.   2/1
PSSPS Pseudoroegneria spicata (Pursh) A. Löve ssp. spicata bluebunch wheatgrass 3/0
AGSP Agropyron spicatum Pursh   5/1
ELSP3 Elymus spicatus (Pursh) Gould   2/0
PSJA Pseudosasa japonica (Sieb. & Zucc. ex Steud.) Makino ex Nakai arrow bamboo 1/0
PSJA2 Pseudostellaria jamesiana (Torr.) W.A. Weber & R.L. Hartman tuber starwort 2/0
PSEL3 Pseudotaxiphyllum elegans (Brid.) Iwats. elegant pseudotaxiphyllum moss    
ISEL Isopterygium elegans (Brid.) Lindb.   3/0
PSEUD7 Pseudotsuga Carr. Douglas-fir 1/2
PSMA Pseudotsuga macrocarpa (Vasey) Mayr bigcone Douglas-fir 8/0
PSME Pseudotsuga menziesii (Mirbel) Franco Douglas-fir 18/0
PSMEG Pseudotsuga menziesii (Mirbel) Franco var. glauca (Beissn.) Franco Rocky Mountain Douglas-fir 4/0
PSMEM Pseudotsuga menziesii (Mirbel) Franco var. menziesii Douglas-fir 6/0
PSTA2 Pseudotsuga taxifolia (Lamb.) Britton   5/0
PSAM Psidium amplexicaule Pers. mountain guava 2/0
PSGU Psidium guajava L. guava 8/0
PSPE2 Psiguria pedata (L.) Howard Caribbean pygmymelon 2/0
PSBR Psilocarphus brevissimus Nutt. short woollyheads 2/0
PSBRB Psilocarphus brevissimus Nutt. var. brevissimus short woollyheads 2/0
PSILO3 Psilostrophe DC. paperflower 1/0
PSCO2 Psilostrophe cooperi (Gray) Greene whitestem paperflower 6/0
PSSP Psilostrophe sparsiflora (Gray) A. Nels. greenstem paperflower 9/0
PSTA Psilostrophe tagetina (Nutt.) Greene woolly paperflower 5/0
PSTAC Psilostrophe tagetina (Nutt.) Greene var. cerifera (A. Nels.) B.L. Turner woolly paperflower    
PSVI Psilostrophe villosa Rydb.   0/1
PSPA4 Psophocarpus palustris Desv. psophocarpus 1/0
PSTE10 Psophocarpus tetragonolobus (L.) DC. winged bean 1/0
PSCE Psora cerebriformis W. A. Weber cerebral fishscale lichen 4/0
PSDE60 Psora decipiens (Hedwig) Hoffm. fishscale lichen 3/0
PSMO7 Psora montana Timdal mountain fishscale lichen 5/0
PSTU Psora tuckermanii R. Anderson ex Timdal Tuckerman's fishscale lichen 2/0
PSLA3 Psoralidium lanceolatum (Pursh) Rydb. lemon scurfpea 3/0
PSLA Psoralea lanceolata Pursh   0/1
PSTE5 Psoralidium tenuiflorum (Pursh) Rydb. slimflower scurfpea    
PSFL Psoralea floribunda Nutt. ex Torr. & Gray   0/1
PSTE3 Psoralea tenuiflora Pursh   4/1
PSAR4 Psorothamnus arborescens (Torr. ex Gray) Barneby Mojave indigobush 1/0
PSARM Psorothamnus arborescens (Torr. ex Gray) Barneby var. minutifolius (Parish) Barneby Johnson's indigobush 2/0
PSFR Psorothamnus fremontii (Torr. ex Gray) Barneby Fremont's dalea 4/0
PSFRF Psorothamnus fremontii (Torr. ex Gray) Barneby var. fremontii Fremont's dalea 2/0
PSKI Psorothamnus kingii (S. Wats.) Barneby King's dalea 3/0
PSPO Psorothamnus polydenius (Torr. ex S. Wats.) Rydb. Nevada dalea 6/0
PSSC5 Psorothamnus schottii (Torr.) Barneby Schott's dalea 1/0
PSSC6 Psorothamnus scoparius (Gray) Rydb. broom dalea 5/0
DASC7 Dalea scoparia Gray   1/0
PSSP3 Psorothamnus spinosus (Gray) Barneby smoketree 2/0
DASP3 Dalea spinosa Gray   1/0
PTELE Ptelea L. hoptree 0/2
PTTR Ptelea trifoliata L. common hoptree 6/1
PTERI Pteridium Gleditsch ex Scop. brackenfern 2/0
PTAQ Pteridium aquilinum (L.) Kuhn western brackenfern 13/2
PTAQL Pteridium aquilinum (L.) Kuhn var. latiusculum (Desv.) Underwood ex Heller western brackenfern    
PTLA Pteridium latiusculum (Desv.) Hieron.   1/0
PTFI Pterigynandrum filiforme Hedw. pterigynandrum moss 5/0
PTFIM Pterigynandrum filiforme Hedw. var. majus (De Not.) De Not.   3/0
PTERI2 Pteris L. brake fern 1/0
PTPY2 Pterocaulon pycnostachyum (Michx.) Ell. dense-spike blackroot 2/0
PTEC2 Pteroglossaspis ecristata (Fern.) Rolfe giant orchid    
EUEC Eulophia ecristata (Fern.) Ames   1/0
PTGR3 Pterogonium gracile (Hedw.) Sm. pterogonium moss 6/0
PTAN2 Pterospora andromedea Nutt. woodland pinedrops 15/1
PTLA2 Pterygoneurum lamellatum (Lindb.) Jur. lamella pterygoneurum moss 5/0
PTOV Pterygoneurum ovatum (Hedw.) Dix. ovate pterygoneurum moss 5/0
PTSU Pterygoneurum subsessile (Brid.) Jur. sessile pterygoneurum moss 3/0
PTPE Pteryxia petraea (M.E. Jones) Coult. & Rose rockloving wavewing 2/0
PTTE Pteryxia terebinthina (Hook.) Coult. & Rose turpentine wavewing 1/0
PTTET Pteryxia terebinthina (Hook.) Coult. & Rose var. terebinthina turpentine wavewing    
CYTE9 Cymopterus terebinthinus (Hook.) Torr. & Gray   2/0
PTILA Ptilagrostis Griseb. false needlegrass 1/0
PTKI Ptilagrostis kingii (Boland.) Barkworth Sierra false needlegrass    
ORKI Oryzopsis kingii (Boland.) Beal   0/1
PTPO Ptilagrostis porteri (Rydb.) W.A. Weber Porter's false needlegrass    
STPO7 Stipa porteri Rydb.   0/1
PTCI Ptilidium ciliare (L.) Hampe 1/0
PTPU2 Ptilidium pulcherrimum (Weber) Vainio 4/0
PTCA Ptilimnium capillaceum (Michx.) Raf. herbwilliam 2/1
PTNO Ptilimnium nodosum (Rose) Mathias piedmont mock bishopweed    
HAVI6 Harperella vivipara Rose   0/1
PTNU Ptilimnium nuttallii (DC.) Britt. laceflower 1/2
PTCR70 Ptilium crista-castrensis (Hedw.) De Not. knights plume moss 4/0
PUAN2 Puccinellia angustata (R. Br.) Rand & Redf. narrow alkaligrass 0/1
PUDI Puccinellia distans (Jacq.) Parl. weeping alkaligrass 1/2
PUFA Puccinellia fasciculata (Torr.) Bickn. saltmarsh alkaligrass 0/2
PUHO Puccinellia howellii J.I. Davis Howell's alkaligrass 1/0
PULE Puccinellia lemmonii (Vasey) Scribn. Lemmon's alkaligrass 0/1
PUMA Puccinellia maritima (Huds.) Parl. seaside alkaligrass 0/2
PUNU Puccinellia nutkaensis (J. Presl) Fern. & Weatherby Nootka alkaligrass    
PUGR Puccinellia grandis Swallen   0/1
PUNU2 Puccinellia nuttalliana (J.A. Schultes) A.S. Hitchc. Nuttall's alkaligrass 1/0
PUAI Puccinellia airoides (Nutt.) S. Wats. & Coult.   1/2
PUPA Puccinellia parishii A.S. Hitchc. bog alkaligrass 1/1
PUPU3 Puccinellia pumila (Vasey) A.S. Hitchc. dwarf alkaligrass 0/1
PURU Puccinellia rupestris (With.) Fern. & Weatherby British alkaligrass 0/1
PUSI Puccinellia simplex Scribn. California alkaligrass 0/1
PUERA Pueraria DC. kudzu 2/0
PUMO Pueraria montana (Lour.) Merr. kudzu 6/0
PUMOL Pueraria montana (Lour.) Merr. var. lobata (Willd.) Maesen & S. Almeida kudzu 5/0
PULO Pueraria lobata (Willd.) Ohwi   3/0
PUPH2 Pueraria phaseoloides (Roxb.) Benth. tropical kudzu 1/0
PUOF Pulmonaria officinalis L. [excluded] common lungwort 1/0
PUOC Pulsatilla occidentalis (S. Wats.) Freyn white pasqueflower 10/0
ANOC6 Anemone occidentalis S. Wats.   3/0
PUPA5 Pulsatilla patens (L.) P. Mill. eastern pasqueflower 1/1
PUPAM Pulsatilla patens (L.) P. Mill. ssp. multifida (Pritz.) Zamels cutleaf anemone 2/0
PULU Pulsatilla ludoviciana Heller   3/0
PUVU Pulsatilla vulgaris Miller European pasqueflower 5/0
PUGR2 Punica granatum L. pomegranate 6/0
PURSH Purshia DC. ex Poir. bitterbrush 2/0
PUGL2 Purshia glandulosa Curran desert bitterbrush 3/0
PUME Purshia mexicana (D. Don) Henrickson Mexican cliffrose 3/0
COME5 Cowania mexicana D. Don   7/1
PUST Purshia stansburiana (Torr.) Henrickson Stansbury cliffrose 6/0
COMES Cowania mexicana D. Don var. stansburiana (Torr.) Jepson   5/0
COST10 Cowania stansburiana Torr.   2/0
PUTR2 Purshia tridentata (Pursh) DC. antelope bitterbrush 21/1
PYAL Pycnanthemum albescens Torr. & Gray whiteleaf mountainmint 3/0
KOAL4 Koellia albescens (Torr. & Gray) Kuntze   0/1
PYCL Pycnanthemum clinopodioides Torr. & Gray basil mountainmint    
KOCL Koellia clinopodioides (Torr. & Gray) Kuntze   0/1
PYFL Pycnanthemum flexuosum (Walt.) B.S.P. Appalachian mountainmint 1/0
KOHY2 Koellia hyssopifolia (Benth.) Britt.   0/1
PYIN Pycnanthemum incanum (L.) Michx. hoary mountainmint 4/0
PYINI Pycnanthemum incanum (L.) Michx. var. incanum hoary mountainmint    
KOIN Koellia incana (L.) Kuntze   0/1
PYMO2 Pycnanthemum montanum Michx. thinleaf mountainmint 1/0
KOMO Koellia montana (Michx.) Kuntze   0/1
PYMU Pycnanthemum muticum (Michx.) Pers. clustered mountainmint 2/0
KOMU2 Koellia mutica (Michx.) Kuntze   0/1
PYPY Pycnanthemum pycnanthemoides (Leavenworth) Fern. southern mountainmint 1/0
PYPYP Pycnanthemum pycnanthemoides (Leavenworth) Fern. var. pycnanthemoides southern mountainmint    
KOPY2 Koellia pycnanthemoides (Leavenworth) Kuntze   0/1
PYSE2 Pycnanthemum setosum Nutt. awned mountainmint    
KOAR Koellia aristata (Michx.) Kuntze   0/1
PYTE Pycnanthemum tenuifolium Schrad. narrowleaf mountainmint 4/0
KOFL Koellia flexuosa auct. non (Walt.) MacM. [misapplied]   0/1
PYVEP Pycnanthemum verticillatum (Michx.) Pers. var. pilosum (Nutt.) Cooperrider whorled mountainmint    
KOPI Koellia pilosa (Nutt.) Britt.   0/1
PYVEV Pycnanthemum verticillatum (Michx.) Pers. var. verticillatum whorled mountainmint    
KOVE3 Koellia verticillata (Michx.) Kuntze   0/1
PYVI Pycnanthemum virginianum (L.) T. Dur. & B.D. Jackson ex B.L. Robins. & Fern. Virginia mountainmint    
KOVI3 Koellia virginiana (L.) MacM.   0/1
PYPO3 Pylaisiella polyantha (Hedw.) Grout pylaisiella moss    
PYPO4 Pylaisia polyantha (Hedw.) Schimp. in B.S.G.   4/0
PYRAC Pyracantha M. Roemer firethorn 1/0
PYCO2 Pyracantha coccinea M. Roemer scarlet firethorn 5/0
COPY3 Cotoneaster pyracantha (L.) Spach   0/1
PYKO Pyracantha koidzumii (Hayata) Rehd. Formosa firethorn 1/0
PYTE5 Pyramidula tetragona (Brid.) Brid. pyramid moss 5/0
PYAM Pyrola americana Sweet American wintergreen 1/1
PYRO Pyrola rotundifolia auct. p.p., non L.   2/0
PYAS Pyrola asarifolia Michx. liverleaf wintergreen 8/1
PYASA Pyrola asarifolia Michx. ssp. asarifolia liverleaf wintergreen    
PYASP Pyrola asarifolia Michx. var. purpurea (Bunge) Fern.   2/0
PYUL Pyrola uliginosa Torr. & Gray ex Torr.   0/1
PYASB2 Pyrola asarifolia Michx. ssp. bracteata (Hook.) Haber pink wintergreen 2/0
PYCH Pyrola chlorantha Sw. greenflowered wintergreen 0/1
PYOX Pyrola oxypetala Austin ex Gray   0/1
PYEL Pyrola elliptica Nutt. waxflower shinleaf 1/1
PYGR Pyrola grandiflora Radius largeflowered wintergreen 1/0
PYMI Pyrola minor L. snowline wintergreen 1/1
PYPI2 Pyrola picta Sm. whiteveined wintergreen 11/0
PYPID Pyrola picta Sm. ssp. dentata (Sm.) Piper   1/0
PYVE2 Pyrostegia venusta (Ker-Gawl.) Miers flamevine 6/0
PYIG2 Pyrostegia ignea (Vell.) K. Presl   3/0
PYCA2 Pyrrhopappus carolinianus (Walt.) DC. Carolina desert-chicory 9/0
SICA10 Sitilias caroliniana (Walt.) Raf.   0/1
PYGR2 Pyrrhopappus grandiflorus (Nutt.) Nutt. tuberous desert-chicory 1/0
PYSC Pyrrhopappus scaposus DC.   0/1
PYPA4 Pyrrhopappus pauciflorus (D. Don) DC. smallflower desert-chicory 1/0
PYMU2 Pyrrhopappus multicaulis DC.   1/0
PYAP2 Pyrrocoma apargioides (Gray) Greene alpineflames 2/0
PYLA Pyrrocoma lanceolata (Hook.) Greene lanceleaf goldenweed 0/1
PYLAL Pyrrocoma lanceolata (Hook.) Greene var. lanceolata lanceleaf goldenweed    
HALA2 Haplopappus lanceolatus (Hook.) Torr. & Gray   1/0
PYPU Pyrularia pubera Michx. buffalo nut 0/1
PYRUS Pyrus L. pear 0/1
PYCA80 Pyrus calleryana Dcne. Callery pear 1/0
PYCO Pyrus communis L. common pear 4/2
PYUS2 Pyrus ussuriensis Maxim. Chinese pear 6/0
PYBA Pyxidanthera barbulata Michx. flowering pixiemoss 5/1
QUERC Quercus L. oak 3/0
QUAC80 Quercus acutissima Carruthers sawtooth oak 8/0
QUAG Quercus agrifolia Née California live oak 9/0
QUAL Quercus alba L. white oak 30/1
QUAR Quercus arizonica Sarg. Arizona white oak 6/0
QUBI Quercus bicolor Willd. swamp white oak 12/2
QUCH Quercus chapmanii Sarg. Chapman oak 2/0
QUCH2 Quercus chrysolepis Liebm. canyon live oak 11/0
QUCHC Quercus chrysolepis Liebm. var. chrysolepis canyon live oak 2/0
QUCO2 Quercus coccinea Muenchh. scarlet oak 5/1
QUDE4 Quercus dentata Thunb. Daimyo oak 3/0
QUDO Quercus douglasii Hook. & Arn. blue oak 6/0
QUDU Quercus dumosa Nutt. coastal sage scrub oak 5/0
QUDU4 Quercus durata Jepson leather oak 4/0
QUEL Quercus ellipsoidalis E.J. Hill northern pin oak 0/1
QUEM Quercus emoryi Torr. Emory oak 6/0
QUFA Quercus falcata Michx. southern red oak 12/1
QUTR3 Quercus triloba Michx.   0/1
QUGA Quercus gambelii Nutt. Gambel oak 7/0
QUGAG Quercus gambelii Nutt. var. gambelii Gambel oak 1/0
QUGA4 Quercus garryana Dougl. ex Hook. Oregon white oak 1/0
QUGAG2 Quercus garryana Dougl. ex Hook. var. garryana Oregon white oak 10/0
QUGR2 Quercus gravesii Sudw. Chisos red oak 1/0
QUHA3 Quercus havardii Rydb. Havard oak 2/0
QUHY Quercus hypoleucoides A. Camus silverleaf oak 3/0
QUIL2 Quercus ilex L. holly oak 1/0
QUIL Quercus ilicifolia Wangenh. bear oak 1/1
QUIM Quercus imbricaria Michx. shingle oak 4/2
QUIN Quercus incana Bartr. bluejack oak 5/0
QUKE Quercus kelloggii Newberry California black oak 10/0
QULA2 Quercus laevis Walt. turkey oak 13/0
QULA3 Quercus laurifolia Michx. laurel oak 8/2
QULO Quercus lobata Née valley oak 13/0
QULY Quercus lyrata Walt. overcup oak 5/2
QUMA2 Quercus macrocarpa Michx. bur oak 22/3
QUMA3 Quercus marilandica Muenchh. blackjack oak 6/1
QUMI Quercus michauxii Nutt. swamp chestnut oak 12/2
QUMO5 Quercus mongolica Fisch. ex Ledeb. mongolian oak 5/0
QUMU Quercus muehlenbergii Engelm. chinkapin oak 4/1
QUMY Quercus myrtifolia Willd. myrtle oak 1/0
QUNI Quercus nigra L. water oak 14/2
QUOG Quercus oglethorpensis Duncan Oglethorpe oak 1/0
QUPA5 Quercus pagoda Raf. cherrybark oak 2/0
QUPA11 Quercus pagodifolia (Ell.) Ashe   0/1
QUPA2 Quercus palustris Muenchh. pin oak 2/2
QUPH Quercus phellos L. willow oak 11/2
QUPR Quercus prinoides Willd. dwarf chinkapin oak 2/1
QUPR2 Quercus prinus L. chestnut oak 10/2
QUPU80 Quercus pumila Walt. running oak 4/1
QURU Quercus rubra L. northern red oak 9/2
QURUA Quercus rubra L. var. ambigua (Gray) Fern. northern red oak    
QUBO Quercus borealis Michx. f.   3/1
QUSH Quercus shumardii Buckl. Shumard's oak 2/1
QUSHS Quercus shumardii Buckl. var. schneckii (Britt.) Sarg. Schneck oak    
QUSC5 Quercus schneckii Britt.   0/1
QUST Quercus stellata Wangenh. post oak 2/2
QUSU5 Quercus suber L. cork oak 8/0
QUTE Quercus texana Buckl. Texas red oak 1/1
QUNU Quercus nuttallii Palmer   1/0
QUTO Quercus tomentella Engelm. island live oak 2/0
QUTU2 Quercus turbinella Greene Sonoran scrub oak 12/0
QUVE Quercus velutina Lam. black oak 10/1
QUVI Quercus virginiana P. Mill. live oak 22/1
QUWI2 Quercus wislizeni A. DC. interior live oak 2/0
QUSA4 Quillaja saponaria Molina soapbark 1/0
QULO2 Quincula lobata (Torr.) Raf. Chinese lantern 2/1
PHLO9 Physalis lobata Torr.   1/0
QUIN10 Quisqualis indica L. Rangoon creeper 7/0
RAAC4 Racomitrium aciculare (Hedw.) Brid. racomitrium moss 4/0
RAAF2 Racomitrium affine (Schleich. ex Web. & Mohr) Lindb. racomitrium moss 4/0
RAAQ2 Racomitrium aquaticum (Brid. ex Schrad.) Brid. aquatic racomitrium moss 2/0
RACA11 Racomitrium canescens (Hedw.) Brid. racomitrium moss 8/0
RAEL3 Racomitrium elongatum Ehrh. ex Frisv. elongate racomitrium moss 5/0
RAER2 Racomitrium ericoides (Web. ex Brid.) Brid. racomitrium moss 8/0
RAFA6 Racomitrium fasciculare (Hedw.) Brid. racomitrium moss 4/0
RAHE8 Racomitrium heterostichum (Hedw.) Brid. racomitrium moss 5/0
RALA70 Racomitrium lanuginosum (Hedw.) Brid. racomitrium moss 5/0
RAMI8 Racomitrium microcarpon (Hedw.) Brid. racomitrium moss 7/0
RASU9 Racomitrium sudeticum (Funck) Bruch & Schimp. in B.S.G. racomitrium moss 4/0
RACO19 Radula complanata (L.) Dumort. 4/0
RANE Rafinesquia neomexicana Gray New Mexico plumeseed 4/0
RAAR Raillardella argentea (Gray) Gray silky raillardella 6/0
RASC2 Raillardella scaposa (Gray) Gray stem raillardella 2/0
RAST Rainiera stricta (Greene) Greene false silverback 2/0
RANUN Ranunculus L. buttercup 4/0
RAAB Ranunculus abortivus L. littleleaf buttercup 10/3
RAAC3 Ranunculus acris L. tall buttercup 3/1
RAADA2 Ranunculus adoneus Gray var. adoneus alpine buttercup 1/0
RAAL Ranunculus alismifolius Geyer ex Benth. plantainleaf buttercup 11/1
RAALA Ranunculus alismifolius Geyer ex Benth. var. alismellus Gray plantainleaf buttercup 1/0
RAALA2 Ranunculus alismifolius Geyer ex Benth. var. alismifolius plantainleaf buttercup 1/0
RAAL2 Ranunculus allegheniensis Britt. Allegheny Mountain buttercup 0/1
RAAM Ranunculus ambigens S. Wats. waterplantain spearwort    
RAOB Ranunculus obtusiusculus Raf.   0/1
RAAN Ranunculus andersonii Gray Anderson's buttercup 10/0
RAAQ Ranunculus aquatilis L. white water crowfoot 4/1
RAAR2 Ranunculus arizonicus J.G. Lemmon ex Gray Arizona buttercup 3/0
RAAR3 Ranunculus arvensis L. corn buttercup 1/1
RABU Ranunculus bulbosus L. St. Anthony's turnip 3/2
RACA2 Ranunculus californicus Benth. California buttercup 2/0
RACAC Ranunculus californicus Benth. var. cuneatus Greene   2/0
RACA3 Ranunculus canus Benth. Sacramento Valley buttercup 3/0
RACA4 Ranunculus cardiophyllus Hook. heartleaf buttercup 0/1
RACY Ranunculus cymbalaria Pursh alkali buttercup 5/1
HACY2 Halerpestes cymbalaria (Pursh) Greene   0/1
RAES Ranunculus eschscholtzii Schlecht. Eschscholtz's buttercup 6/1
RAFA Ranunculus fascicularis Muhl. ex Bigelow early buttercup 4/1
RAFI Ranunculus ficaria L. fig buttercup 1/1
RAFL Ranunculus flabellaris Raf. yellow water buttercup 2/1
RADE2 Ranunculus delphiniifolius Torr. ex Eat.   0/1
RAFL2 Ranunculus flammula L. greater creeping spearwort 3/1
RAFLF Ranunculus flammula L. var. filiformis (Michx.) Hook. greater creeping spearwort    
RARE80 Ranunculus reptans L.   0/1
RAGL Ranunculus glaberrimus Hook. sagebrush buttercup 10/1
RAGM Ranunculus gmelinii DC. Gmelin's buttercup 1/1
RAPU3 Ranunculus purshii Richards.   0/1
RAHA Ranunculus harveyi (Gray) Britt. Harvey's buttercup 0/1
RAHE2 Ranunculus hederaceus L. ivy buttercup    
BAHE Batrachium hederaceum (L.) S.F. Gray   0/1
RAHI Ranunculus hispidus Michx. bristly buttercup 3/2
RAHIH Ranunculus hispidus Michx. var. hispidus bristly buttercup 1/0
RAHIN Ranunculus hispidus Michx. var. nitidus (Chapman) T. Duncan bristly buttercup    
RACA5 Ranunculus carolinianus DC.   1/0
RASE Ranunculus septentrionalis Poir.   3/1
RAHY2 Ranunculus hyperboreus Rottb. high northern buttercup 0/1
RAIN Ranunculus inamoenus Greene graceful buttercup 3/0
RALA Ranunculus lapponicus L. Lapland buttercup 0/1
RALA2 Ranunculus laxicaulis (Torr. & Gray) Darby Mississippi buttercup 1/1
RALO Ranunculus lobbii (Hiern.) Gray Lobb's buttercup 2/0
RALO2 Ranunculus longirostris Godr. longbeak buttercup 2/1
RASU Ranunculus subrigidus W. Drew   1/0
RAMA Ranunculus macauleyi Gray Rocky Mountain buttercup 3/0
RAMA2 Ranunculus macounii Britt. Macoun's buttercup 1/1
RAMA3 Ranunculus macranthus Scheele large buttercup 2/0
RAMI2 Ranunculus micranthus Nutt. rock buttercup 1/1
RAMU2 Ranunculus muricatus L. spinyfruit buttercup 2/1
RANI Ranunculus nivalis L. snow buttercup 0/1
RAOC Ranunculus occidentalis Nutt. western buttercup 2/0
RAOCO Ranunculus occidentalis Nutt. var. occidentalis western buttercup 2/0
RAOR Ranunculus oreogenes Greene Oregon buttercup 2/0
RAOR3 Ranunculus orthorhynchus Hook. straightbeak buttercup 1/1
RAORO Ranunculus orthorhynchus Hook. var. orthorhynchus straightbeak buttercup 2/0
RAPA3 Ranunculus parviflorus L. smallflower buttercup 0/1
RAPE Ranunculus pedatifidus Sm. surefoot buttercup 0/1
RAPE2 Ranunculus pensylvanicus L. f. Pennsylvania buttercup 1/2
RAPU Ranunculus pusillus Poir. low spearwort 3/2
RAPUP Ranunculus pusillus Poir. var. pusillus low spearwort    
RAOB2 Ranunculus oblongifolius Ell.   0/1
RAPY Ranunculus pygmaeus Wahlenb. pygmy buttercup 0/1
RARE2 Ranunculus recurvatus Poir. blisterwort 8/2
RARE3 Ranunculus repens L. creeping buttercup 9/2
RARH Ranunculus rhomboideus Goldie Labrador buttercup    
RAOV2 Ranunculus ovalis Raf.   0/1
RASA Ranunculus sardous Crantz hairy buttercup 1/0
RAPA6 Ranunculus parvulus L.   0/1
RASC3 Ranunculus sceleratus L. cursed buttercup 4/2
RASU4 Ranunculus suksdorfii Gray Suksdorf's buttercup 3/0
RATRT Ranunculus trichophyllus Chaix var. trichophyllus threadleaf crowfoot    
BATR2 Batrachium trichophyllum (Chaix) F.W. Schultz   0/1
RAUN Ranunculus uncinatus D. Don ex G. Don woodland buttercup 3/0
RAUNP Ranunculus uncinatus D. Don ex G. Don var. parviflorus (Torr.) L. Benson Idaho buttercup 3/0
RAPHA Raphanus L. radish 1/0
RARA2 Raphanus raphanistrum L. wild radish 4/1
RASA2 Raphanus sativus L. cultivated radish 2/1
RAFA5 Raphia farinifera (Gaertner) Hylander raffia palm 1/0
RACO3 Ratibida columnifera (Nutt.) Woot. & Standl. upright prairie coneflower 9/0
RACO7 Ratibida columnaris D. Don   2/1
RAPI Ratibida pinnata (Vent.) Barnh. pinnate prairie coneflower 3/1
RATA Ratibida tagetes (James) Barnh. green prairie coneflower 0/1
RASE4 Rauvolfia serpentina (L.) Benth. ex Kurz serpentine wood 1/0
RAVO Rauvolfia vomitoria Afzelius poison devil's-pepper 1/0
RAAN2 Rayjacksonia annua (Rydb.) R.L. Hartman & M.A. Lane viscid tansyaster    
SIAN6 Sideranthus annuus Rydb.   0/1
REHE Reboulia hemisphaerica (L.) Raddi 8/0
REBUT Rebutia K. Schum. rebutia 1/0
REFL Redfieldia flexuosa (Thurb.) Vasey blowout grass 1/2
REOL Reimarochloa oligostachya (Munro ex Benth.) A.S. Hitchc. Florida reimar grass 0/1
REMO3 Renanthera monachica Ames 1/0
REAL Reseda alba L. white upright mignonette 2/1
RELU Reseda lutea L. yellow mignonette 1/1
RELU2 Reseda luteola L. weld 0/1
REMO2 Retama monosperma (L.) Boiss. bridal broom 1/0
REUN Reynosia uncinata Urban sloe 3/0
RHAMN Rhamnus L. buckthorn 2/1
RHAL Rhamnus alnifolia L'Hér. alderleaf buckthorn 1/2
RHCA3 Rhamnus cathartica L. common buckthorn 3/2
RHCR Rhamnus crocea Nutt. redberry buckthorn 2/0
RHDA Rhamnus davurica Pallas Dahurian buckthorn 1/0
RHIL Rhamnus ilicifolia Kellogg hollyleaf redberry    
RHCRI3 Rhamnus crocea Nutt. var. ilicifolia (Kellogg) Greene   1/0
RHJA8 Rhamnus japonica Maxim. Japanese buckthorn 1/0
RHLA Rhamnus lanceolata Pursh lanceleaf buckthorn 0/1
RHUT80 Rhamnus utilis Dcne. Chinese buckthorn 1/0
RHHY Rhapidophyllum hystrix (Pursh) H. Wendl. & Drude ex Drude needle palm 14/0
RHAL4 Rhexia alifanus Walt. savannah meadowbeauty 7/1
RHAR Rhexia aristosa Britt. awnpetal meadowbeauty 0/1
RHCU4 Rhexia cubensis Griseb. West Indian meadowbeauty 1/0
RHLU Rhexia lutea Walt. yellow meadowbeauty 3/0
RHMA Rhexia mariana L. Maryland meadowbeauty 8/2
RHPE Rhexia petiolata Walt. fringed meadowbeauty 2/0
RHCI6 Rhexia ciliosa Michx.   0/1
RHVI Rhexia virginica L. handsome Harry 8/2
RHMIM Rhinanthus minor L. ssp. minor little yellowrattle    
RHCR2 Rhinanthus crista-galli L. p.p.   2/1
RHIPS Rhipsalis Gaertn. rhipsalis 4/0
RHBA2 Rhipsalis baccifera (Soland. ex J.S. Muell.) Stearn mistletoe cactus 1/0
RHMA12 Rhizomnium magnifolium (Horik.) T. Kop. grandleaf rhizomnium moss 3/0
RHPS70 Rhizomnium pseudopunctatum (Bruch & Schimp.) T. Kop. rhizomnium moss 4/0
RHPU7 Rhizomnium punctatum (Hedw.) T. Kop. rhizomnium moss 5/0
RHIZO Rhizophora L. mangrove 1/0
RHAP2 Rhizophora apiculata Blume mangrove 1/0
RHMA2 Rhizophora mangle L. red mangrove 7/0
RHMU Rhizophora mucronata Lam. mangrove 2/0
RHCH61 Rhizoplaca chrysoleuca (Sm.) Zopf golden rimmed navel lichen 2/0
RHME2 Rhizoplaca melanophthalma (DC.) Leuckert & Poelt rimmed navel lichen 2/0
RHIN11 Rhodiola integrifolia Raf. ledge stonecrop 2/0
RHINI Rhodiola integrifolia Raf. ssp. integrifolia ledge stonecrop    
SEIN4 Sedum integrifolium (Raf.) A. Nels.   2/0
RHRH4 Rhodiola rhodantha (Gray) Jacobsen redpod stonecrop 1/0
CLRH2 Clementsia rhodantha (Gray) Rose   1/0
SERH Sedum rhodanthum Gray   1/0
RHRO3 Rhodiola rosea L. roseroot stonecrop 0/1
SERO2 Sedum rosea (L.) Scop. [orthographic variant]   3/0
RHON Rhodobryum ontariense (Kindb.) Par. in Kindb. Ontario rhodobryum moss 4/0
RHRO6 Rhodobryum roseum (Hedw.) Limpr. rose rhodobryum moss 4/0
RHODO Rhododendron L. rhododendron 14/1
RHAL5 Rhododendron alabamense Rehd. Alabama azalea 1/0
RHAL2 Rhododendron albiflorum Hook. Cascade azalea 1/0
RHALA Rhododendron albiflorum Hook. var. albiflorum Cascade azalea 3/0
RHAR3 Rhododendron arborescens (Pursh) Torr. smooth azalea 3/0
AZAR Azalea arborescens Pursh   0/1
RHAT Rhododendron atlanticum (Ashe) Rehd. dwarf azalea 3/0
RHAU Rhododendron austrinum (Small) Rehd. orange azalea 4/0
RHCA4 Rhododendron calendulaceum (Michx.) Torr. flame azalea 8/0
AZLU Azalea lutea auct. non L. [misapplied]   0/1
RHCA6 Rhododendron canadense (L.) Torr. rhodora 1/0
RHCA17 Rhodora canadensis L.   0/1
RHCA7 Rhododendron canescens (Michx.) Sweet mountain azalea 8/1
AZCA3 Azalea canescens Michx.   0/1
RHCA14 Rhododendron carolinianum Rehd. Carolina azalea 1/0
RHCA8 Rhododendron catawbiense Michx. Catawba rosebay 3/1
RHCH5 Rhododendron chapmanii Gray Chapman's rhododendron 1/0
RHCU Rhododendron cumberlandense E.L. Braun Cumberland rhododendron    
RHBA3 Rhododendron bakeri auct. non (Lemmon & McKay) Hume [misapplied]   7/0
RHKO Rhododendron konori Becc. Konor rhododendron 2/0
RHLA2 Rhododendron lapponicum (L.) Wahlenb. Lapland rosebay 3/1
RHMA3 Rhododendron macrophyllum D. Don ex G. Don Pacific rhododendron 4/1
RHMA4 Rhododendron maximum L. great laurel 11/2
RHMI2 Rhododendron minus Michx. piedmont rhododendron 1/0
RHOB Rhododendron oblongifolium (Small) Millais Texas azalea 4/0
RHOC Rhododendron occidentale (Torr. & Gray ex Torr.) Gray western azalea 10/0
RHPE4 Rhododendron periclymenoides (Michx.) Shinners pink azalea 2/1
AZNU Azalea nudiflora L.   0/1
RHNU3 Rhododendron nudiflorum (L.) Torr.   3/0
RHPR Rhododendron prinophyllum (Small) Millais early azalea 2/0
RHRO4 Rhododendron roseum (Loisel.) Rehd.   4/0
RHUN2 Rhododendron uniflorum Hutch. & Kingdon-Ward 1/0
RHVA Rhododendron vaseyi Gray pinkshell azalea 12/0
RHVI2 Rhododendron viscosum (L.) Torr. swamp azalea 4/1
AZVI Azalea viscosa L.   0/1
RHSE Rhododendron serrulatum (Small) Millais   1/0
RHVIG Rhododendron viscosum (L.) Torr. var. glaucum (Michx.) Gray   1/0
RHODO3 Rhodotypos Sieb. & Zucc. rhodotypos 0/1
RHSC3 Rhodotypos scandens (Thunb.) Makino jetbead 1/0
RHUS Rhus L. sumac 2/0
RHAR4 Rhus aromatica Ait. fragrant sumac 14/0
RHARA2 Rhus aromatica Ait. var. aromatica fragrant sumac    
SCCR3 Schmaltzia crenata (P. Mill.) Greene   0/1
RHCO Rhus copallinum L. winged sumac 4/1
RHCO14 Rhus coriaria L. Sicilian sumac 1/0
RHGL Rhus glabra L. smooth sumac 19/1
RHIN2 Rhus integrifolia (Nutt.) Benth. & Hook. f. ex Brewer & S. Wats. lemonade sumac 6/0
RHMI3 Rhus microphylla Engelm. ex Gray littleleaf sumac 3/0
RHOV Rhus ovata S. Wats. sugar sumac 3/1
RHTR Rhus trilobata Nutt. skunkbush sumac 11/0
RHTRT Rhus trilobata Nutt. var. trilobata skunkbush sumac    
SCTR4 Schmaltzia trilobata (Nutt.) Small   0/1
RHTY Rhus typhina L. staghorn sumac 5/2
RHHI2 Rhus hirta (L.) Sudworth   2/1
RHVIC Rhus virens Lindheimer ex Gray var. choriophylla (Woot. & Standl.) L. Benson evergreen sumac    
RHCH Rhus choriophylla Woot. & Standl.   2/0
RHAM Rhynchosia americana (Houst. ex P. Mill.) M.C. Metz American snoutbean 1/0
RHCA80 Rhynchosia caribaea (Jacq.) DC. Caribbean snoutbean 1/0
RHCY4 Rhynchosia cytisoides (Bertol.) Wilbur royal snoutbean    
LECY3 Lespedeza cytisoides Bertol.   1/0
RHDI2 Rhynchosia difformis (Ell.) DC. doubleform snoutbean    
DOTO Dolicholus tomentosus (L.) Vail   0/1
RHLA5 Rhynchosia latifolia Nutt. ex Torr. & Gray prairie snoutbean 1/0
DOLA4 Dolicholus latifolius (Nutt. ex Torr. & Gray) Vail   0/1
RHMI4 Rhynchosia minima (L.) DC. least snoutbean 1/0
RHPH Rhynchosia phaseoloides (Sw.) DC. crabseye 1/0
RHRE Rhynchosia reniformis DC. dollarleaf 3/0
DOSI Dolicholus simplicifolius (Walt.) Vail   0/1
RHRE3 Rhynchosia reticulata (Sw.) DC. habilla 3/0
RHSET Rhynchosia senna Gillies ex Hook. var. texana (Torr. & A. Gray) M.C. Johnst. Texas snoutbean 2/0
RHSW Rhynchosia swartzii (Vail) Urban Swartz's snoutbean 1/0
RHTO3 Rhynchosia tomentosa (L.) Hook. & Arn. twining snoutbean 2/0
RHTOT Rhynchosia tomentosa (L.) Hook. & Arn. var. tomentosa twining snoutbean    
DOER2 Dolicholus erectus (Walt.) Vail   0/1
RHER Rhynchosia erecta (Walt.) DC.   1/0
RHAL3 Rhynchospora alba (L.) Vahl white beaksedge 2/1
RHCA9 Rhynchospora caduca Ell. anglestem beaksedge 1/0
RHCA11 Rhynchospora capillacea Torr. needle beaksedge 0/1
RHSM2 Rhynchospora smallii Britt.   0/1
RHCA12 Rhynchospora capitellata (Michx.) Vahl brownish beaksedge 1/1
RHCE Rhynchospora cephalantha Gray bunched beaksedge 3/0
RHCO7 Rhynchospora colorata (L.) H. Pfeiffer starrush whitetop 1/1
DICO Dichromena colorata (L.) A.S. Hitchc.   3/1
RHCO2 Rhynchospora corniculata (Lam.) Gray shortbristle horned beaksedge 1/2
RHCOI Rhynchospora corniculata (Lam.) Gray var. interior Fern.   2/0
RHEL Rhynchospora elliottii A. Dietr. Elliott's beaksedge 1/0
RHFA Rhynchospora fascicularis (Michx.) Vahl fascicled beaksedge 1/0
RHFU Rhynchospora fusca (L.) Ait. f. brown beaksedge 0/1
RHGL2 Rhynchospora globularis (Chapman) Small globe beaksedge 2/0
RHGL3 Rhynchospora glomerata (L.) Vahl clustered beaksedge 1/1
RHGR Rhynchospora gracilenta Gray slender beaksedge 0/1
RHIN4 Rhynchospora inexpansa (Michx.) Vahl nodding beaksedge 1/2
RHIN7 Rhynchospora inundata (Oakes) Fern. narrowfruit horned beaksedge 2/0
RHKN Rhynchospora knieskernii Carey Knieskern's beaksedge 0/1
RHLA7 Rhynchospora latifolia (Baldw. ex Ell.) Thomas sandswamp whitetop 4/0
DILA2 Dichromena latifolia Baldw. ex Ell.   2/1
RHMA6 Rhynchospora macrostachya Torr. ex Gray tall horned beaksedge 1/0
RHMI8 Rhynchospora microcephala (Britt.) Britt. smallhead beaksedge 1/1
RHNI Rhynchospora nitens (Vahl) Gray shortbeak beaksedge    
PSNI Psilocarya nitens (Vahl) Wood   1/1
RHOL Rhynchospora oligantha Gray featherbristle beaksedge 2/1
RHPA Rhynchospora pallida M.A. Curtis pale beaksedge 0/1
RHPE2 Rhynchospora perplexa Britt. pineland beaksedge 1/0
RHRE8 Rhynchospora recognita (Gale) Kral globe beaksedge    
RHGLR Rhynchospora globularis (Chapman) Small var. recognita Gale   0/1
RHSC5 Rhynchospora scirpoides (Torr.) Gray longbeak beaksedge    
PSSC2 Psilocarya scirpoides Torr.   2/1
RHTO4 Rhynchospora torreyana Gray Torrey's beaksedge 0/1
RHLO70 Rhytidiadelphus loreus (Hedw.) Warnst. loreus goose neck moss 4/0
RHSQ70 Rhytidiadelphus squarrosus (Hedw.) Warnst. square goose neck moss 3/0
RHSU11 Rhytidiadelphus subpinnatus (Lindb.) T. Kop.   3/0
RHTR70 Rhytidiadelphus triquetrus (Hedw.) Warnst. rough goose neck moss 4/0
RHRU70 Rhytidium rugosum (Hedw.) Kindb. rhytidium moss 4/0
RHAU2 Rhytidophyllum auriculatum Hook. tibey-amarillo 2/0
RIBES Ribes L. currant 2/1
RIAM2 Ribes americanum P. Mill. American black currant 1/1
RIAU Ribes aureum Pursh golden currant 6/0
RIAUA Ribes aureum Pursh var. aureum golden currant 2/0
RIAUG Ribes aureum Pursh var. gracillimum (Coville & Britt.) Jepson golden currant 2/0
RIAUV Ribes aureum Pursh var. villosum DC. golden currant    
RIOD Ribes odoratum H. Wendl.   4/1
RIBR Ribes bracteosum Douglas ex Hook. stink currant 1/0
RICA Ribes californicum Hook. & Arn. hillside gooseberry 1/0
RICE Ribes cereum Dougl. wax currant 10/0
RICEC2 Ribes cereum Dougl. var. cereum wax currant 4/0
RIVI4 Ribes viscidulum Berger   1/0
RICEP Ribes cereum Dougl. var. pedicellare Brewer & S. Wats. whisky currant    
RIIN3 Ribes inebrians Lindl.   0/1
RICY Ribes cynosbati L. eastern prickly gooseberry 1/0
GRCY Grossularia cynosbati (L.) P. Mill.   0/1
RIDI Ribes divaricatum Dougl. spreading gooseberry 1/0
RIGL Ribes glandulosum Grauer skunk currant 0/1
RIHI Ribes hirtellum Michx. hairystem gooseberry    
GRHI3 Grossularia hirtella (Michx.) Spach   0/1
RIHU Ribes hudsonianum Richards. northern black currant 1/1
RIHUP Ribes hudsonianum Richardson var. petiolare (Douglas) Jancz. western black currant    
RIPE2 Ribes petiolare Douglas   1/0
RIIN Ribes indecorum Eastw. whiteflower currant 2/0
RIIN2 Ribes inerme Rydb. whitestem gooseberry 4/1
RILA Ribes lacustre (Pers.) Poir. prickly currant 4/1
RILA3 Ribes laxiflorum Pursh trailing black currant    
RICO2 Ribes coloradense Coville   4/0
RIMA Ribes malvaceum Sm. chaparral currant 7/0
RIMI Ribes missouriense Nutt. Missouri gooseberry    
GRMI2 Grossularia missouriensis (Nutt.) Coville & Britt.   0/1
RIMO2 Ribes montigenum McClatchie gooseberry currant 5/0
RINI2 Ribes niveum Lindl. snow currant 1/0
RIOXO Ribes oxyacanthoides L. ssp. oxyacanthoides Canadian gooseberry    
GROX2 Grossularia oxyacanthoides (L.) P. Mill.   0/1
RIOXS Ribes oxyacanthoides L. ssp. setosum (Lindl.) Sinnott inland gooseberry    
GRSE7 Grossularia setosa (Lindl.) Coville & Britt.   0/1
RIPI Ribes pinetorum Greene orange gooseberry 2/0
RIQU Ribes quercetorum Greene rock gooseberry 2/0
RIRO Ribes roezlii Regel Sierra gooseberry 1/0
RIRO2 Ribes rotundifolium Michx. Appalachian gooseberry    
GRRO4 Grossularia rotundifolia (Michx.) Coville & Britt.   0/1
RIRU80 Ribes rubrum L. cultivated currant 2/0
RIVU Ribes vulgare Lam.   0/1
RISA Ribes sanguineum Pursh redflower currant 5/1
RISAG Ribes sanguineum Pursh var. glutinosum (Benth.) Loud. blood currant 6/0
RISP Ribes speciosum Pursh fuchsiaflower gooseberry 2/0
RITR Ribes triste Pallas red currant 1/1
RIUVS Ribes uva-crispa L. var. sativum DC. European gooseberry    
GRRE2 Grossularia reclinata (L.) P. Mill.   0/1
RIVI Ribes viburnifolium Gray island gooseberry 4/0
RIVI3 Ribes viscosissimum Pursh sticky currant 2/0
RIWA Ribes watsonianum Koehne spring gooseberry 1/0
RIWO Ribes wolfii Rothrock Wolf's currant 2/0
RILA6 Riccardia latifrons (Lindb.) Lindb. 3/0
RIMU3 Riccardia multifida (L.) Gray 2/0
RIPA6 Riccardia palmata (Hedw.) Carruth. 1/0
RIBI5 Riccia bifurca Hoffm. 2/0
RICA14 Riccia canaliculata Hoffm. 2/0
RICA15 Riccia cavernosa Hoffm. 4/0
RIFL4 Riccia fluitans L. 4/0
RIGL6 Riccia glauca L. 1/0
RINI6 Riccia nigrella DC. 3/0
RISO2 Riccia sorocarpa Bisch. 4/0
RIWA3 Riccia warnstorfii Limpr. ex Warnst. 3/0
RISC Richardia scabra L. rough Mexican clover 3/0
RICO3 Ricinus communis L. castorbean 8/1
RIHU2 Rivina humilis L. rougeplant 7/0
ROBIN Robinia L. locust 2/0
ROHI Robinia hispida L. bristly locust 6/1
ROHIF8 Robinia hispida L. var. fertilis (Ashe) Clausen bristly locust 1/0
ROFE3 Robinia fertilis Ashe   1/0
ROHIK Robinia hispida L. var. kelseyi (Cowell ex Hutchinson) Isely Kelsey's locust    
ROKE Robinia kelseyi Cowell ex Hutchinson   1/0
RONE Robinia neomexicana Gray New Mexico locust 12/0
RONEN Robinia neomexicana Gray var. neomexicana New Mexico locust    
ROLU Robinia luxurians (Dieck) Schneid. ex Tarouca & Schneid.   1/0
ROPS Robinia pseudoacacia L. black locust 22/3
ROVI Robinia viscosa Vent. clammy locust 1/1
ROAC2 Rochefortia acanthophora (DC.) Griseb. greenheart ebony 3/0
RORE Roemeria refracta DC. spotted Asian poppy 1/0
ROCO Romneya coulteri Harvey Coulter's Matilija poppy 8/0
ROTR2 Romneya trichocalyx Eastw. bristly Matilija poppy 2/0
ROCU2 Rorippa curvipes Greene bluntleaf yellowcress 2/0
ROCU Rorippa curvisiliqua (Hook.) Bess. ex Britt. curvepod yellowcress 1/1
ROPAH Rorippa palustris (L.) Bess. ssp. hispida (Desv.) Jonsell hispid yellowcress    
RAHI3 Radicula hispida (Desv.) Britt.   0/1
ROPAP Rorippa palustris (L.) Bess. ssp. palustris bog yellowcress    
RAPA7 Radicula palustris (L.) Moench   0/1
ROSE Rorippa sessiliflora (Nutt.) A.S. Hitchc. stalkless yellowcress 2/1
RASE3 Radicula sessiliflora (Nutt.) Greene   0/1
ROSI2 Rorippa sinuata (Nutt.) A.S. Hitchc. spreading yellowcress 1/1
RASI Radicula sinuata (Nutt.) Greene   0/1
ROSP4 Rorippa sphaerocarpa (Gray) Britt. roundfruit yellowcress    
RASP2 Radicula sphaerocarpa (Gray) Greene   0/1
ROSU2 Rorippa subumbellata Rollins Lake Tahoe yellowcress 2/0
ROSY Rorippa sylvestris (L.) Bess. creeping yellowcress 2/1
RASY Radicula sylvestris (L.) Druce   0/1
ROTE2 Rorippa teres (Michx.) R. Stuckey southern marsh yellowcress    
RAOB3 Radicula obtusa (Nutt.) Greene   0/1
ROSA5 Rosa L. rose 10/0
ROAC Rosa acicularis Lindl. prickly rose 1/1
ROAR3 Rosa arkansana Porter prairie rose 2/0
ROARS Rosa arkansana Porter var. suffulta (Greene) Cockerell prairie rose    
ROPR2 Rosa pratincola Greene   0/1
ROSU6 Rosa suffulta Greene   1/0
ROBL Rosa blanda Ait. smooth rose 1/2
ROBR Rosa bracteata J.C. Wendl. Macartney rose 1/1
ROCA2 Rosa californica Cham. & Schlecht. California wildrose 2/0
ROCA3 Rosa canina L. dog rose 1/1
ROCA4 Rosa carolina L. Carolina rose 7/2
ROCH Rosa chinensis Jacq. Chinese rose 2/0
ROEG Rosa eglanteria L. sweetbriar rose 2/0
RORU82 Rosa rubiginosa L.   0/1
ROFE5 Rosa ferruiginea Vill. redleaf rose    
ROGL80 Rosa glauca Pourret, non Vill. ex Loisel.   1/0
RORU2 Rosa rubrifolia Vill. nom. illeg.   1/0
ROFO Rosa foliolosa Nutt. ex Torr. & Gray white prairie rose 1/0
ROGA Rosa gallica L. French rose 1/0
ROGAO Rosa gallica L. var. officinalis Thory   1/0
ROGY Rosa gymnocarpa Nutt. dwarf rose 2/0
ROLA Rosa laevigata Michx. Cherokee rose 1/0
ROMA81 Rosa majalis J. Herrm. double cinnamon rose 1/0
ROMI80 Rosa minutifolia Engelm. Baja rose 3/0
ROMO Rosa moschata J. Herrm. musk rose 1/0
ROMU Rosa multiflora Thunb. ex Murr. multiflora rose 7/0
RONI Rosa nitida Willd. shining rose 0/1
RONU Rosa nutkana K. Presl Nootka rose 5/0
RONUH Rosa nutkana K. Presl var. hispida Fern. bristly Nootka rose 1/0
ROPA Rosa palustris Marsh. swamp rose 3/1
ROPI2 Rosa pisocarpa Gray cluster rose 1/0
RORU Rosa rugosa Thunb. rugosa rose 6/0
ROSE3 Rosa sempervirens L. evergreen rose 1/0
ROSE2 Rosa setigera Michx. climbing rose 2/3
ROSI5 Rosa sicula Tratt. Mediterranean rose    
ROSE8 Rosa serafinii Viviani   1/0
ROSP2 Rosa spinosissima L. Scotch rose 3/0
ROST Rosa stellata Woot. desert rose 4/0
ROVI80 Rosa villosa L. apple rose 1/0
ROVI2 Rosa virginiana P. Mill. Virginia rose 2/1
ROWO Rosa woodsii Lindl. Woods' rose 9/1
ROXA2 Rosa xanthina Lindl. yellow rose 3/0
ROOF Rosmarinus officinalis L. rosemary 3/0
ROCR3 Rostraria cristata (L.) Tzvelev Mediterranean hairgrass 1/0
KOPH Koeleria phleoides (Vill.) Pers.   0/1
RORA Rotala ramosior (L.) Koehne lowland rotala 5/2
ROCO6 Rottboellia cochinchinensis (Lour.) W.D. Clayton itchgrass 1/0
ROEX2 Rottboellia exaltata (L.) L. f.   1/0
ROSU4 Rourea surinamensis Miq. Juan Caliente 2/0
ROEL Roystonea elata (Bartr.) F. Harper Florida royal palm 8/0
RORE2 Roystonea regia auct. non (Kunth) O.F. Cook [misapplied]   2/0
RUTI2 Rubia tinctorum L. madder 1/0
RUBUS Rubus L. blackberry 2/0
RUAL Rubus allegheniensis Porter Allegheny blackberry 1/1
RUAL9 Rubus alumnus Bailey oldfield blackberry 1/1
RUAR Rubus arcticus L. arctic blackberry 2/1
RUAR2 Rubus argutus Link sawtooth blackberry 4/2
RUBA2 Rubus baileyanus Britt. Bailey's dewberry 1/2
RUCA Rubus caesius L. European dewberry 1/0
RUCA16 Rubus canadensis L. smooth blackberry 3/2
RUCH Rubus chamaemorus L. cloudberry 2/1
RUCU Rubus cuneifolius Pursh sand blackberry 4/2
RUDE Rubus deliciosus Torr. delicious raspberry 1/0
RUDE8 Rubus depavitus Bailey Aberdeen dewberry    
RUPR7 Rubus profusiflorus Bailey   1/0
RUEL3 Rubus ellipticus Sm. yellow Himalayan raspberry 1/0
RUFL Rubus flagellaris Willd. northern dewberry 2/1
RUEN Rubus enslenii Tratt.   1/0
RUFR4 Rubus frondosus Bigelow yankee blackberry 0/1
RUFR80 Rubus fruticosus L. shrubby blackberry 1/0
RUGL5 Rubus glaucus Benth. Andes berry 1/0
RUHA Rubus hawaiensis Gray Hawai'i blackberry 1/0
RUHI Rubus hispidus L. bristly dewberry 3/2
RUID Rubus idaeus L. American red raspberry 5/1
RUIDS2 Rubus idaeus L. ssp. strigosus (Michx.) Focke grayleaf red raspberry    
RUNE3 Rubus neglectus Peck   1/1
RUST Rubus strigosus Michx.   0/1
RUIL Rubus illecebrosus Focke strawberry raspberry 1/0
RUIN5 Rubus invisus (Bailey) Britt. upland dewberry 0/1
RULA Rubus laciniatus Willd. cutleaf blackberry 3/0
RULA2 Rubus lasiococcus Gray roughfruit berry 3/0
RULE Rubus leucodermis Dougl. ex Torr. & Gray whitebark raspberry 3/0
RULEL Rubus leucodermis Dougl. ex Torr. & Gray var. leucodermis whitebark raspberry 2/0
RULI2 Rubus linkianus Ser. Link's blackberry 1/0
RUMA6 Rubus macraei Gray 'akala 1/0
RUMA Rubus macrophyllus Weihe & Nees largeleaf blackberry 1/0
RUMO4 Rubus moluccanus L. eelkek 1/0
RUNI2 Rubus nivalis Douglas ex Hook. snow raspberry 1/0
RUNI4 Rubus niveus Thunb. snowpeaks raspberry 1/0
RUOC Rubus occidentalis L. black raspberry 2/2
RUOD Rubus odoratus L. purpleflowering raspberry 5/1
RUPA Rubus parviflorus Nutt. thimbleberry 5/1
RUPAP2 Rubus parviflorus Nutt. var. parviflorus thimbleberry 2/0
RUPE Rubus pedatus Sm. strawberryleaf raspberry 4/0
RUPE7 Rubus permixtus Blanch. thicket dewberry    
RUEL4 Rubus elongatus Brainerd & Piet.   1/0
RUPH Rubus phoenicolasius Maxim. wine raspberry 2/0
RUPU Rubus pubescens Raf. dwarf red blackberry 1/0
RUPUP2 Rubus pubescens Raf. var. pubescens dwarf red blackberry    
RUTR9 Rubus triflorus Richards.   0/1
RURO Rubus rosifolius Sm. West Indian raspberry    
RURO10 Rubus rosaefolius Smith [orthographic variant]   1/0
RUSE Rubus setosus Bigelow setose blackberry 1/0
RUNI6 Rubus nigricans Rydb.   0/1
RUSP Rubus spectabilis Pursh salmonberry 5/0
RUSPS Rubus spectabilis Pursh var. spectabilis salmonberry 3/0
RUTR Rubus trivialis Michx. southern dewberry 3/1
RUUL Rubus ulmifolius Schott elmleaf blackberry 1/0
RUUR Rubus ursinus Cham. & Schlecht. California blackberry 5/0
RUVE Rubus vestitus Weihe European blackberry 1/0
RUCA3 Rudbeckia californica Gray California coneflower 7/0
RUFU2 Rudbeckia fulgida Ait. orange coneflower 2/1
RUFUS3 Rudbeckia fulgida Ait. var. speciosa (Wenderoth) Perdue orange coneflower    
RUSP8 Rudbeckia speciosa Wenderoth   0/1
RUFUU Rudbeckia fulgida Ait. var. umbrosa (C.L. Boynt. & Beadle) Cronq. orange coneflower    
RUUM Rudbeckia umbrosa C.L. Boynt. & Beadle   0/1
RUGL7 Rudbeckia glaucescens Eastw. waxy coneflower 2/0
RUGR Rudbeckia grandiflora (D. Don) J.F. Gmel. ex DC. rough coneflower 6/1
RUHI2 Rudbeckia hirta L. blackeyed Susan 11/1
RUHIH Rudbeckia hirta L. var. hirta blackeyed Susan    
RUBR11 Rudbeckia brittonii Small   0/1
RUHIP Rudbeckia hirta L. var. pulcherrima Farw. blackeyed Susan    
RUSE5 Rudbeckia serotina Nutt.   1/0
RULA3 Rudbeckia laciniata L. cutleaf coneflower 10/2
RULAA Rudbeckia laciniata L. var. ampla (A. Nels.) Cronq. cutleaf coneflower    
RUAM9 Rudbeckia ampla A. Nels.   1/0
RUMA3 Rudbeckia maxima Nutt. great coneflower 5/2
RUMI Rudbeckia missouriensis Engelm. ex C.L. Boynt. & Beadle Missouri orange coneflower 1/0
RUNI3 Rudbeckia nitida Nutt. shiny coneflower 2/0
RUOC2 Rudbeckia occidentalis Nutt. western coneflower 3/0
RUSC4 Rudbeckia scabrifolia L.E. Brown roughleaf coneflower 4/0
RUSU Rudbeckia subtomentosa Pursh sweet coneflower 4/1
RUTE4 Rudbeckia texana (Perdue) P. Cox & Urbatsch Texas coneflower    
RUNIT Rudbeckia nitida Nutt. var. texana Perdue   1/0
RUTR2 Rudbeckia triloba L. browneyed Susan 1/1
RUELL Ruellia L. wild petunia 3/0
RUCA19 Ruellia caerulea Morong Britton's wild petunia 3/0
RUBR Ruellia brittoniana Leonard   1/0
RUCA4 Ruellia caroliniensis (J.F. Gmel.) Steud. Carolina wild petunia 6/0
RUCAC4 Ruellia caroliniensis (J.F. Gmel.) Steud. ssp. caroliniensis var. caroliniensis Carolina wild petunia    
RUPA21 Ruellia parviflora (Nees) Britt.   0/1
RUCAC5 Ruellia caroliniensis (J.F. Gmel.) Steud. ssp. ciliosa (Pursh) R.W. Long var. cinerascens (Fern.) Kartesz & Gandhi Carolina wild petunia 1/0
RUCI4 Ruellia ciliosa Pursh   1/1
RUDI13 Ruellia dipteracanthus Hemsl. 2/0
RUDR Ruellia drummondiana (Nees) Gray Drummond's wild petunia 1/0
RUHU Ruellia humilis Nutt. fringeleaf wild petunia 11/1
RUNU Ruellia nudiflora (Engelm. & Gray) Urban violet wild petunia 3/0
RUNUN Ruellia nudiflora (Engelm. & Gray) Urban var. nudiflora violet wild petunia 1/0
RUPA3 Ruellia parryi Gray Parry's wild petunia 2/0
RUPA26 Ruellia patula Jacq. 1/0
RUPE4 Ruellia pedunculata Torr. ex Gray stalked wild petunia 0/1
RUST2 Ruellia strepens L. limestone wild petunia 2/2
RUNU2 Rugelia nudicaulis Shuttlw. ex Chapman Rugel's Indianplantain    
SERU6 Senecio rugelia Gray   1/0
RUAC2 Rumex acetosa L. garden sorrel 1/1
RUAC3 Rumex acetosella L. common sheep sorrel 10/2
RUAL4 Rumex altissimus Wood pale dock 1/2
RUAQ Rumex aquaticus L. western dock 0/1
RUAQF Rumex aquaticus L. var. fenestratus (Greene) Dorn western dock    
RUOC3 Rumex occidentalis S. Wats.   3/1
RUCO2 Rumex conglomeratus Murr. clustered dock 3/2
RUCR Rumex crispus L. curly dock 6/2
RUDE3 Rumex dentatus L. toothed dock 2/0
RUHA2 Rumex hastatulus Baldw. heartwing sorrel 5/1
RUHY Rumex hymenosepalus Torr. canaigre dock 7/0
RUMA4 Rumex maritimus L. golden dock 1/1
RUPE11 Rumex persicarioides L.   0/1
RUOB Rumex obtusifolius L. bitter dock 1/1
RUOR2 Rumex orbiculatus Gray greater water dock 2/1
RUORB Rumex orbiculatus Gray var. borealis Rech. f. greater water dock    
RUBR4 Rumex britannica Amer. auct., non L.   0/1
RUOR3 Rumex orthoneurus Rech. f. Chiricahua Mountain dock 2/0
RUPA4 Rumex pallidus Bigelow seaside dock 0/1
RUPA5 Rumex patientia L. patience dock 2/1
RUPU3 Rumex pulcher L. fiddle dock 2/1
RUSA Rumex salicifolius Weinm. willow dock 4/0
RUSAM Rumex salicifolius Weinm. var. mexicanus (Meisn.) C.L. Hitchc. Mexican dock    
RUME2 Rumex mexicanus Meisn.   0/1
RUSA2 Rumex sanguineus L. redvein dock 0/1
RUVE2 Rumex venosus Pursh veiny dock 12/1
RUVE3 Rumex verticillatus L. swamp dock 3/2
RUPH3 Rupertia physodes (Dougl. ex Hook.) J. Grimes forest scurfpea    
PSPH Psoralea physodes Dougl. ex Hook.   1/0
RUCI2 Ruppia cirrhosa (Petag.) Grande spiral ditchgrass    
RUOC6 Ruppia occidentalis S. Wats.   0/1
RUMA5 Ruppia maritima L. widgeongrass 4/1
RUEQ Russelia equisetiformis Schlecht. & Cham. fountainbush 4/0
RUGR3 Ruta graveolens L. common rue 2/0
RYPI Rytidosperma pilosum (R. Br.) Connor & Edgar hairy wallaby grass    
DAPI Danthonia pilosa R. Br.   2/0
SABAL Sabal Adans. palmetto 1/0
SAMI8 Sabal minor (Jacq.) Pers. dwarf palmetto 8/1
SAGL13 Sabal glabra Sarg., non P. Mill.   1/0
SALO14 Sabal louisiana (Darby) Bomhard   2/0
SAPA Sabal palmetto (Walt.) Lodd. ex J.A. & J.H. Schultes cabbage palmetto 10/1
SAAN Sabatia angularis (L.) Pursh rosepink 10/2
SABR9 Sabatia brachiata Ell. narrowleaf rose gentian 0/1
SABR10 Sabatia brevifolia Raf. shortleaf rose gentian 1/0
SAEL3 Sabatia elliottii Steud.   0/1
SAPA15 Sabatia paniculata (Michx.) Pursh   0/1
SACA2 Sabatia calycina (Lam.) Heller coastal rose gentian 0/1
SACA26 Sabatia campanulata (L.) Torr. slender rose gentian 1/1
SACA3 Sabatia campestris Nutt. Texas star 3/1
SADI2 Sabatia difformis (L.) Druce lanceleaf rose gentian 3/0
SALA11 Sabatia lanceolata (Walt.) Torr. & Gray   0/1
SADO Sabatia dodecandra (L.) B.S.P. marsh rose gentian 0/1
SAGE Sabatia gentianoides Ell. pinewoods rose gentian 4/0
SAKE Sabatia kennedyana Fern. Plymouth rose gentian    
SADOK Sabatia dodecandra (L.) B.S.P. var. kennedyana (Fern.) Ahles   1/0
SAST5 Sabatia stellaris Pursh rose of Plymouth 1/1
SACCH Saccharum L. sugarcane 2/0
SAAL21 Saccharum alopecuroides (L.) Nutt. silver plumegrass    
ERAL2 Erianthus alopecuroides (L.) Ell.   0/1
ERDI11 Erianthus divaricatus (L.) A.S. Hitchc.   0/1
SAAL9 Saccharum alopecuroidum (L.) Nutt. [orthographic variant]   1/0
SABA10 Saccharum baldwinii Spreng. narrow plumegrass    
ERST2 Erianthus strictus Ell.   0/1
SABE8 Saccharum bengalense Retz. Munj sweetcane    
SACI3 Saccharum ciliare Andersson   1/0
SABRB5 Saccharum brevibarbe (Michx.) Pers. var. brevibarbe shortbeard plumegrass    
ERBR2 Erianthus brevibarbis Michx.   0/2
SABRC3 Saccharum brevibarbe (Michx.) Pers. var. contortum (Ell.) R. Webster sortbeard plumegrass 1/0
ERCO2 Erianthus contortus Ell.   0/2
SACO31 Saccharum coarctatum (Fern.) R. Webster compressed plumegrass    
ERCO35 Erianthus coarctatus Fern.   0/1
ERCOE2 Erianthus coarctatus Fern. var. elliottianus Fern.   0/1
SAGI Saccharum giganteum (Walt.) Pers. sugarcane plumegrass 2/1
ERGI Erianthus giganteus (Walt.) Beauv.   3/1
ERSA15 Erianthus saccharoides Michx.   0/1
SAOF Saccharum officinarum L. sugarcane 1/1
SARA3 Saccharum ravennae (L.) L. ravennagrass    
ERRA Erianthus ravennae (L.) Beauv.   0/1
SARO11 Saccharum robustum E.W. Brandes & Jeswiet ex Grassl [excluded] robust cane 1/0
SACCI Sacciolepis Nash cupscale grass 2/0
SAST Sacciolepis striata (L.) Nash American cupscale 2/3
PAAQ Panicum aquaticum Bosc ex Spreng., non Poir.   2/0
SADLE Sadleria Kaulfuss sadleria 1/0
SAGL70 Saelania glaucescens (Hedw.) Broth. in Bomanss. & Broth. saelania moss 4/0
SADE Sagina decumbens (Ell.) Torr. & Gray trailing pearlwort 0/1
SANO Sagina nodosa (L.) Fenzl knotted pearlwort 0/1
SAPR Sagina procumbens L. birdeye pearlwort 0/1
SASA Sagina saginoides (L.) Karst. arctic pearlwort 0/2
SASU5 Sagina subulata (Sw.) K. Presl awl-leaf pearlwort 2/0
SAGIT Sagittaria L. arrowhead 8/0
SAAM4 Sagittaria ambigua J.G. Sm. Kansas arrowhead 0/1
SABR8 Sagittaria brevirostra Mackenzie & Bush shortbeak arrowhead 0/1
SACAC Sagittaria calycina Engelm. var. calycina hooded arrowhead    
LOCA12 Lophotocarpus calycinus (Engelm.) J.G. Sm.   0/1
LODE3 Lophotocarpus depauperatus J.G. Sm.   0/1
SACAS Sagittaria calycina Engelm. var. spongiosa Engelm. hooded arrowhead    
LOSP6 Lophotocarpus spathulatus J.G. Sm.   0/1
LOSP5 Lophotocarpus spongiosus (Engelm.) J.G. Sm.   0/1
SACR4 Sagittaria cristata Engelm. crested arrowhead 0/1
SACU Sagittaria cuneata Sheldon arumleaf arrowhead 1/1
SAEN Sagittaria engelmanniana J.G. Sm. Engelmann's arrowhead 2/1
SAFA5 Sagittaria fasciculata E.O. Beal bunched arrowhead 3/0
SAGR Sagittaria graminea Michx. grassy arrowhead 4/1
SAGRG Sagittaria graminea Michx. var. graminea grassy arrowhead    
SAEA3 Sagittaria eatonii J.G. Sm.   0/1
SALA Sagittaria lancifolia L. bulltongue arrowhead 4/1
SALAM2 Sagittaria lancifolia L. ssp. media (Micheli) Bogin bulltongue arrowhead    
SAFA4 Sagittaria falcata Pursh   1/1
SALA2 Sagittaria latifolia Willd. broadleaf arrowhead 5/1
SALO11 Sagittaria longirostra (Micheli) J.G. Sm.   0/1
SAPU10 Sagittaria pubescens Muhl. ex Nutt.   0/1
SALO2 Sagittaria longiloba Engelm. ex J.G. Sm. longbarb arrowhead 1/1
SAMO Sagittaria montevidensis Cham. & Schlecht. giant arrowhead 2/0
SAPL Sagittaria platyphylla (Engelm.) J.G. Sm. delta arrowhead 2/2
SARI Sagittaria rigida Pursh sessilefruit arrowhead 0/1
SASU Sagittaria subulata (L.) Buch. awl-leaf arrowhead 0/1
SALO12 Sagittaria lorata (Chapman) Small   0/1
SATE2 Sagittaria teres S. Wats. slender arrowhead 2/1
SACO13 Sairocarpus coulterianus (Benth. ex A. DC.) D.A. Sutton Coulter's snapdragon    
ANCO4 Antirrhinum coulterianum Benth. ex A. DC.   4/0
SANU6 Sairocarpus nuttallianus (Benth. ex A. DC.) D.A. Sutton violet snapdragon 2/0
ANNU3 Antirrhinum nuttallianum Benth. ex A. DC.   2/0
SAED Salacca edulis Reinw. salac palm 1/0
SAME Salazaria mexicana Torr. Mexican bladdersage 3/0
SALIC Salicornia L. pickleweed 2/0
SABI Salicornia bigelovii Torr. dwarf saltwort 0/1
SADE10 Salicornia depressa Standl. Virginia glasswort    
SAVI Salicornia virginica L.   1/0
SAMA11 Salicornia maritima Wolff & Jefferies slender grasswort    
SAEU Salicornia europaea auct. non L. [misapplied]   0/1
SARU Salicornia rubra A. Nels. red swampfire 1/1
SALIX Salix L. willow 4/0
SAAL2 Salix alba L. white willow 9/1
SAALV Salix alba L. var. vitellina (L.) Stokes   4/0
SAAM2 Salix amygdaloides Anderss. peachleaf willow 9/2
SAAR27 Salix arctica Pallas arctic willow 4/0
SAAR6 Salix arctophila Cockerell ex Heller northern willow    
SAAR4 Salix arctica Liebm., non Pallas   0/1
SAAR7 Salix argyrocarpa Anderss. Labrador willow 0/1
SABA3 Salix barclayi Anderss. Barclay's willow 2/1
SABE2 Salix bebbiana Sarg. Bebb willow 0/1
SABR2 Salix breweri Bebb Brewer's willow 2/0
SACA4 Salix candida Flueggé ex Willd. sageleaf willow 1/1
SACA22 Salix caprea L. goat willow 1/0
SACA5 Salix caroliniana Michx. coastal plain willow 6/1
SAWA5 Salix wardii (Bebb) Bebb   0/1
SACA6 Salix cascadensis Cockerell cascade willow 2/0
SACO3 Salix cordata Michx. heartleaf willow    
SAAD2 Salix adenophylla Hook.   0/1
SACO28 Salix ×cottetii Jos. Kern. Cottet willow 1/0
SADI Salix discolor Muhl. pussy willow 1/2
SAER Salix eriocephala Michx. Missouri River willow    
SACO24 Salix cordata Muhl., non Michx.   0/1
SAEX Salix exigua Nutt. narrowleaf willow 7/1
SAFR Salix fragilis L. crack willow 0/2
SAGE2 Salix geyeriana Anderss. Geyer willow 2/0
SAGL Salix glauca L. grayleaf willow 0/1
SAGLV Salix glauca L. ssp. glauca var. villosa (D. Don ex Hook.) Anderss. grayleaf willow    
SADE7 Salix desertorum Richards.   0/1
SAGO Salix gooddingii Ball Goodding's willow 1/0
SAHE2 Salix herbacea L. snowbed willow 0/1
SAHU2 Salix humilis Marsh. prairie willow 1/2
SAHUT Salix humilis Marsh. var. tristis (Ait.) Griggs prairie willow    
SATR2 Salix tristis Ait.   0/1
SAIN3 Salix interior Rowlee sandbar willow 4/1
SALA6 Salix lasiolepis Benth. arroyo willow 6/1
SALE Salix lemmonii Bebb Lemmon's willow 1/1
SALU Salix lucida Muhl. shining willow 1/2
SALUL Salix lucida Muhl. ssp. lasiandra (Benth.) E. Murr. Pacific willow 8/0
SALA5 Salix lasiandra Benth.   2/0
SALU2 Salix lutea Nutt. yellow willow 2/0
SAMYM Salix myricoides Muhl. var. myricoides bayberry willow    
SAGL11 Salix glaucophylla Bebb (Bebb), non Bess. nec Anderss.   0/1
SANI Salix nigra Marsh. black willow 5/2
SANI8 Salix nivalis Hook. snow willow 4/0
SAPE2 Salix pedicellaris Pursh bog willow 2/1
SAPE3 Salix pellita (Anderss.) Anderss. ex Schneid. satiny willow 0/1
SAPE12 Salix ×pendulina Wenderoth [fragilis × ?sepulcralis] Wisconsin weeping willow    
SABA2 Salix babylonica auct. non L. p.p. [misapplied]   0/1
SAPE4 Salix pentandra L. laurel willow 4/0
SAPE5 Salix petiolaris Sm. meadow willow 0/1
SAPE18 Salix petrophila Rydb. alpine willow 1/0
SAPH Salix phlebophylla Anderss. skeletonleaf willow    
SAAN8 Salix anglorum Cham.   0/1
SAPL2 Salix planifolia Pursh diamondleaf willow 2/2
SAPU2 Salix purpurea L. purpleosier willow 0/1
SAPY Salix pyrifolia Anderss. balsam willow 0/1
SARE2 Salix reticulata L. netleaf willow 2/1
SASC Salix scouleriana Barratt ex Hook. Scouler's willow 7/1
SASE Salix sericea Marsh. silky willow 1/2
SASE2 Salix serissima (Bailey) Fern. autumn willow 1/1
SASE4 Salix setchelliana Ball Setchell's willow 1/0
SASI2 Salix sitchensis Sanson ex Bong. Sitka willow 3/0
SACO4 Salix coulteri Anderss.   1/0
SAUV Salix uva-ursi Pursh bearberry willow 0/1
SAVE Salix vestita Pursh rock willow 0/1
SAVI2 Salix viminalis L. basket willow 0/1
SAWA Salix ×waghornei Rydb. (pro sp.) [arctica × glauca] 0/1
SALPI3 Salpiglossis K. Koch salpiglossis 1/0
SASI19 Salpiglossis sinuata Ruiz & Pavón painted tongue 2/0
SALSO Salsola L. Russian thistle 1/0
SAKA Salsola kali L. Russian thistle 3/1
SASO3 Salsola soda L. oppositeleaf Russian thistle 1/0
SATR12 Salsola tragus L. prickly Russian thistle 2/0
SAIB Salsola iberica (Sennen & Pau) Botsch. ex Czerepanov   3/0
SAPE10 Salsola pestifer A. Nels.   0/1
SALVI Salvia L. sage 9/0
SAAE Salvia aethiopis L. Mediterranean sage 1/0
SAAP2 Salvia apiana Jepson white sage 3/0
SAAR25 Salvia argentea L. silver sage 1/0
SAAZ Salvia azurea Michx. ex Lam. azure blue sage 1/0
SAAZG Salvia azurea Michx. ex Lam. var. grandiflora Benth. pitcher sage 1/0
SAPI3 Salvia pitcheri Torr. ex Benth.   0/1
SABR3 Salvia brandegeei Munz Santa Rosa Island sage 5/0
SACA8 Salvia carduacea Benth. thistle sage 2/0
SACO5 Salvia coccinea P.J. Buchoz ex Etlinger blood sage 5/0
SACO6 Salvia columbariae Benth. chia 11/0
SADI9 Salvia disjuncta Fernald southern Mexican sage 3/0
SADO4 Salvia dorrii (Kellogg) Abrams purple sage 14/0
SADOC5 Salvia dorrii (Kellogg) Abrams ssp. dorrii var. clokeyi Strachan purple sage 2/0
SADOI Salvia dorrii (Kellogg) Abrams ssp. dorrii var. incana (Benth.) Strachan purple sage 6/0
SADOC2 Salvia dorrii (Kellogg) Abrams ssp. carnosa (Dougl. ex Greene) Abrams   2/0
SAEL6 Salvia elegans Vahl pineapple sage 1/0
SAFA2 Salvia farinacea Benth. mealycup sage 1/0
SAFU2 Salvia funerea M.E. Jones woolly sage 6/0
SAGL12 Salvia glutinosa L. sticky sage 1/0
SAGR4 Salvia greggii Gray autumn sage 13/0
SAHE3 Salvia henryi Gray crimson sage 2/0
SALE5 Salvia lemmonii Gray Lemmon's sage 2/0
SALE9 Salvia leucantha Cav. Mexican bush sage 6/0
SALE3 Salvia leucophylla Greene San Luis purple sage 4/0
SALY Salvia lycioides Gray canyon sage    
SARA Salvia ramosissima Fern.   1/0
SALY2 Salvia lyrata L. lyreleaf sage 7/1
SAME3 Salvia mellifera Greene black sage 5/0
SAMI20 Salvia microphylla Benth. baby sage 3/0
SAGR9 Salvia grahamii Benth.   1/0
SAMI25 Salvia miniata Fernald Belize sage 2/0
SAMU Salvia munzii Epling Munz's sage 3/0
SAOF2 Salvia officinalis L. kitchen sage 1/0
SAPA5 Salvia pachyphylla Epling ex Munz blue sage 4/0
SAPA33 Salvia patens Cav. sage 1/0
SAPI2 Salvia pinguifolia (Fern.) Woot. & Standl. rock sage 2/0
SAPR2 Salvia pratensis L. introduced sage 1/1
SARE3 Salvia reflexa Hornem. lanceleaf sage 4/0
SALA15 Salvia lancifolia Poir.   0/1
SARO3 Salvia roemeriana Scheele cedar sage 1/0
SASC2 Salvia sclarea L. Europe sage 0/1
SASE8 Salvia serotina L. littlewoman 1/0
SASO Salvia sonomensis Greene creeping sage 7/1
SASP3 Salvia spathacea Greene hummingbird sage 9/0
SASP6 Salvia splendens Sellow ex Roemer & J.A. Schultes scarlet sage 3/0
SASU7 Salvia subincisa Benth. sawtooth sage 4/0
SASU4 Salvia summa A. Nels. great sage 1/0
SATE3 Salvia texana (Scheele) Torr. Texas sage 1/0
SAUR Salvia urticifolia L. nettleleaf sage 0/1
SAVE12 Salvia verbenaca L. wild clary    
SAVE2 Salvia verbenacea L. [orthographic variant]   0/1
SAVE5 Salvia verticillata L. lilac sage 1/0
SALVI2 Salvinia Séguier watermoss 1/0
SAAU Salvinia auriculata Aubl. eared watermoss    
SANA4 Salvinia natans auct. non (L.) All. [misapplied]   0/1
SAMI7 Salvinia minima Baker water spangles 1/0
SAMO5 Salvinia molesta Mitchell kariba-weed 1/0
SASA10 Samanea saman (Jacq.) Merr. raintree 1/0
SAMBU Sambucus L. elderberry 2/1
SAAF Sambucus africana Standl. 2/0
SANI4 Sambucus nigra L. European black elderberry 2/2
SANIC4 Sambucus nigra L. ssp. canadensis (L.) R. Bolli common elderberry 8/0
SACA12 Sambucus canadensis L.   8/1
SAME5 Sambucus mexicana K. Presl ex DC.   5/0
SANIC5 Sambucus nigra L. ssp. cerulea (Raf.) R. Bolli blue elder 4/0
SACE3 Sambucus cerulea Raf. [orthographic variant]   3/0
SAGL14 Sambucus glauca Nutt.   4/0
SAMEC Sambucus mexicana K. Presl ex DC. ssp. cerulea (Raf.) E. Murr. [orthographic variant]   1/0
SARA2 Sambucus racemosa L. red elderberry 5/1
SARAM4 Sambucus racemosa L. var. melanocarpa (Gray) McMinn black elderberry 2/0
SARAR3 Sambucus racemosa L. var. racemosa red elderberry 4/0
SACA11 Sambucus callicarpa Greene   4/0
SAMI15 Sambucus microbotrys Rydb.   5/0
SAPU11 Sambucus pubens Michx.   3/1
SAEB2 Samolus ebracteatus Kunth limewater brookweed 1/0
SAVA3 Samolus valerandi L. seaside brookweed 0/1
SAVAP Samolus valerandi L. ssp. parviflorus (Raf.) Hultén seaside brookweed    
SAFL10 Samolus floribundus Kunth   3/1
SAPA9 Samolus parviflorus Raf.   1/1
SADO7 Samyda dodecandra Jacq. guayabilla 1/0
SASP7 Sanchezia speciosa Leonard shrubby whitevein 2/0
SANGU Sanguinaria L. bloodroot 1/0
SACA13 Sanguinaria canadensis L. bloodroot 13/1
SAAN2 Sanguisorba annua (Nutt. ex Hook.) Nutt. ex Torr. & Gray prairie burnet    
POAN16 Poteridium annuum (Nutt. ex Hook.) Spach   0/1
SACA14 Sanguisorba canadensis L. Canadian burnet 2/1
SAMI3 Sanguisorba minor Scop. small burnet 6/1
SAMIB2 Sanguisorba minor Scop. ssp. balearica (Bourg. ex Nyman) M. Garm. & C. Navarro small burnet    
POSA16 Poterium sanguisorba auct. non L. [misapplied]   0/1
SAOF3 Sanguisorba officinalis L. official burnet 1/0
SAAR9 Sanicula arctopoides Hook. & Arn. footsteps of spring 3/0
SAAR10 Sanicula arguta Greene ex Coult. & Rose sharptooth blacksnakeroot    
SASI12 Sanicula simulans Hoover   1/0
SABI3 Sanicula bipinnatifida Dougl. ex Hook. purple sanicle 5/0
SACA15 Sanicula canadensis L. Canadian blacksnakeroot 1/1
SAMA2 Sanicula marilandica L. Maryland sanicle 1/1
SAOD Sanicula odorata (Raf.) K.M. Pryer & L.R. Phillippe clustered blacksnakeroot 0/1
SAGR6 Sanicula gregaria Bickn.   4/1
SATR4 Sanicula trifoliata Bickn. largefruit blacksnakeroot 0/1
SATU Sanicula tuberosa Torr. turkey pea 3/0
SAUN8 Sanionia uncinata (Hedw.) Loeske sanionia moss 4/0
SANSE Sansevieria Thunb. sansevieria 1/0
SACH2 Santolina chamaecyparissus L. lavender cotton 3/0
SAAB Sanvitalia abertii Gray Albert's creeping zinnia 1/0
SAPR6 Sanvitalia procumbens Lam. Mexican creeping zinnia 1/0
SASA4 Sapindus saponaria L. wingleaf soapberry 3/0
SASAD Sapindus saponaria L. var. drummondii (Hook. & Arn.) L. Benson western soapberry 3/0
SADR5 Sapindus drummondii Hook. & Arn.   1/2
SALA8 Sapium laurocerasus Desf. milktree 1/0
SAOF4 Saponaria officinalis L. bouncingbet 11/2
SARCO Sarcobatus Nees greasewood 1/0
SAVE4 Sarcobatus vermiculatus (Hook.) Torr. greasewood 9/1
SAVEB Sarcobatus vermiculatus (Hook.) Torr. var. baileyi (Coville) Jepson   4/0
SAPE11 Sarcocornia perennis (P. Mill.) A.J. Scott chickenclaws    
SAAM10 Salicornia ambigua Michx.   0/1
SASA5 Sarcodes sanguinea Torr. snowplant 12/0
SAMA23 Saritaea magnifica (Sprague ex Stennis) Dugand glowvine 3/0
SASA19 Sarmenthypnum sarmentosum (Wahlenb.) Tuom. & T. Kop. sarmenthypnum moss    
CASA31 Calliergon sarmentosum (Wahlenb.) Kindb.   4/0
SARE24 Sarmienta repens Ruiz & Pav. 1/0
SARRA Sarracenia L. pitcherplant 1/0
SAAL4 Sarracenia alata Wood yellow trumpets 11/1
SAFL4 Sarracenia flava L. yellow pitcherplant 6/2
SALE4 Sarracenia leucophylla Raf. crimson pitcherplant 2/0
SAMI9 Sarracenia minor Walt. hooded pitcherplant 1/1
SAPU4 Sarracenia purpurea L. purple pitcherplant 11/1
SARU4 Sarracenia rubra Walt. sweet pitcherplant 2/1
SAAL5 Sassafras albidum (Nutt.) Nees sassafras 17/1
SASA17 Sassafras sassafras (L.) Karst.   0/1
SAHO3 Satureja hortensis L. summer savory 0/1
SAMO6 Satureja montana L. winter savory 1/0
SACE Saururus cernuus L. lizard's tail 4/2
SAAM3 Saussurea americana D.C. Eat. American saw-wort 1/0
SAAN3 Saussurea angustifolia (Willd.) DC. narrowleaf saw-wort 2/0
SACO35 Saxegothaea conspicua Lindl. Prince Albert's yew 4/0
SAXIF Saxifraga L. saxifrage 3/0
SAAI Saxifraga aizoides L. yellow mountain saxifrage    
LEAI Leptasea aizoides (L.) Haw.   0/1
SABR6 Saxifraga bronchialis L. yellowdot saxifrage 6/0
SABRA2 Saxifraga bronchialis L. ssp. austromontana (Wieg.) Piper matted saxifrage    
CIAU3 Ciliaria austromontana (Wieg.) W.A. Weber   4/0
SABR7 Saxifraga bryophora Gray bud saxifrage 2/0
SACAC4 Saxifraga caespitosa L. ssp. caespitosa tufted alpine saxifrage    
MUCE Muscaria cespitosa (L.) Haw. [orthographic variant]   0/1
SACA18 Saxifraga californica Greene California saxifrage 1/0
SACA20 Saxifraga caroliniana Gray Carolina saxifrage    
MICA11 Micranthes caroliniana (Gray) Small   0/1
SACE2 Saxifraga cernua L. nodding saxifrage 3/1
SAFEV Saxifraga ferruginea Graham var. vreelandii (Small) Engl. & Irmsch. Vreeland's saxifrage 1/0
SAFL6 Saxifraga flagellaris Willd. ex Sternb. whiplash saxifrage 4/0
SAFO4 Saxifraga foliolosa R. Br. leafystem saxifrage    
HYFO2 Hydatica foliolosa (R. Br.) Small   0/1
SAHI3 Saxifraga hirculus L. yellow marsh saxifrage 1/0
SAHIH2 Saxifraga hirculus L. ssp. hirculus yellow marsh saxifrage    
LEHI6 Leptasea hirculus (L.) Small   0/1
SAHY Saxifraga hyperborea R. Br. pygmy saxifrage 2/0
SAMI5 Saxifraga michauxii Britt. Michaux's saxifrage    
HYPE7 Hydatica petiolaris (Raf.) Small   0/1
SAMI6 Saxifraga micranthidifolia (Haw.) Steud. lettuceleaf saxifrage 1/0
MIMI7 Micranthes micranthidifolia (Haw.) Small   0/1
SANEC2 Saxifraga nelsoniana D. Don ssp. cascadensis (Calder & Savile) Hultén heartleaf saxifrage 4/0
SANI6 Saxifraga nivalis L. alpine saxifrage    
MINI4 Micranthes nivalis (L.) Small   0/1
SAOC4 Saxifraga occidentalis S. Watson Alberta saxifrage 2/0
SAOD2 Saxifraga odontoloma Piper brook saxifrage 6/1
MIOD2 Micranthes odontoloma (Piper) W.A. Weber   1/0
SAAR13 Saxifraga arguta auct. non D. Don [misapplied]   1/0
SAOPO Saxifraga oppositifolia L. ssp. oppositifolia purple mountain saxifrage    
ANOP Antiphylla oppositifolia (L.) Fourr.   0/1
SAOR2 Saxifraga oregana T.J. Howell Oregon saxifrage 7/0
MIOR2 Micranthes oregana (Howell) Small   2/0
SAPAN Saxifraga paniculata P. Mill. ssp. neogaea (Butters) D. Löve White Mountain saxifrage 2/0
SAPE8 Saxifraga pensylvanica L. eastern swamp saxifrage 3/1
MIPE4 Micranthes pensylvanica (L.) Haw.   0/1
SARH2 Saxifraga rhomboidea Greene diamondleaf saxifrage 1/0
MIRH Micranthes rhomboidea (Greene) Small   1/0
SARI8 Saxifraga rivularis L. weak saxifrage 2/1
SATE4 Saxifraga texana Buckl. Texas saxifrage    
MITE7 Micranthes texana (Buckl.) Small   0/1
SATO2 Saxifraga tolmiei Torr. & Gray Tolmie's saxifrage 4/0
SATR5 Saxifraga tricuspidata Rottb. three toothed saxifrage    
LETR6 Leptasea tricuspidata (Rottb.) Haw.   0/1
SAVI5 Saxifraga virginiensis Michx. early saxifrage 5/0
SAVIV Saxifraga virginiensis Michx. var. virginiensis early saxifrage    
MIVI7 Micranthes virginiensis (Michx.) Small   0/1
SCABI Scabiosa L. pincushions 1/0
SCCA21 Scabiosa caucasica M. Bieb. Caucasian pincushion flower 1/0
SCSCS5 Scabrethia scabra (Hook.) W.A. Weber ssp. scabra badlands mule-ears    
WYSC Wyethia scabra Hook.   9/0
SCMU13 Scadoxus multiflorus (Martyn) Raf. 4/0
SCMUK Scadoxus multiflorus (Martyn) Raf. ssp. katherinae (Baker) Friis & Nordal Katherine-wheel 1/0
HAKA Haemanthus katherinae Baker   1/0
SCMUM2 Scadoxus multiflorus (Martyn) Raf. ssp. multiflorus blood-flower    
HAMU4 Haemanthus multiflorus Martyn   3/0
SCAEV Scaevola L. naupaka 1/0
SCPL Scaevola plumieri (L.) Vahl gullfeed 4/0
SCSE6 Scaevola sericea Vahl beach naupaka 2/0
SCSET Scaevola sericea Vahl var. taccada (Gaertn.) Thieret & B. Lipscomb beach naupaka    
SCTA Scaevola taccada (Gaertn.) Roxb.   4/0
SCPE Scandix pecten-veneris L. shepherdsneedle 1/1
SCAE2 Scapania aequiloba (Schwägr.) Dumort. 3/0
SCCO23 Scapania compacta (Roth) Dumort. 4/0
SCGL13 Scapania glaucocephala (Taylor) Austin 2/0
SCNE4 Scapania nemorea (L.) Grolle 4/0
SCPA26 Scapania paludicola Loeske & Müll. Frib. 2/0
SCPA24 Scapania paludosa (Müll. Frib.) Müll. Frib. 4/0
SCUM3 Scapania umbrosa (Schrad.) Dumort. 5/0
SCUN6 Scapania undulata (L.) Dumort. 4/0
SCFR Schaefferia frutescens Jacq. Florida boxwood 1/0
SCPA Schedonnardus paniculatus (Nutt.) Trel. tumblegrass 1/2
SCGI Schedonorus giganteus (L.) Holub giant fescue    
FEGI Festuca gigantea (L.) Vill.   2/1
SCPH Schedonorus phoenix (Scop.) Holub tall fescue    
FEAR3 Festuca arundinacea Schreb.   4/0
LOAR10 Lolium arundinaceum (Schreb.) S.J. Darbyshire   3/1
SCPR4 Schedonorus pratensis (Huds.) Beauv. meadow fescue    
FEEL Festuca elatior L. p.p.   0/2
FEPR Festuca pratensis Huds.   1/1
LOPR7 Lolium pratense (Huds.) S.J. Darbyshire   1/0
SCAC2 Schefflera actinophylla (Endl.) H.A.T. Harms octopus tree 4/0
BRAC2 Brassaia actinophylla Endl.   2/0
SCMO10 Schefflera morototonii (Aubl.) Maguire, Steyermark & Frodin matchwood 1/0
SCPA2 Scheuchzeria palustris L. rannoch-rush 0/1
SCAD Schiedea adamantis St. John Diamond Head schiedea 2/0
SCHIN Schinus L. peppertree 1/0
SCMO Schinus molle L. Peruvian peppertree 5/0
SCPO7 Schinus polygamus (Cav.) Cabrera Hardee peppertree 1/0
SCTE Schinus terebinthifolius Raddi Brazilian peppertree 3/0
SCAR Schismus arabicus Nees Arabian schismus 2/1
SCBA Schismus barbatus (Loefl. ex L.) Thellung common Mediterranean grass 1/1
SCAP70 Schistidium apocarpum (Hedw.) Bruch & Schimp. in B.S.G. schistidium moss 4/0
SCAT6 Schistidium atrofuscum (Schimp.) Limpr.   2/0
SCBR10 Schistidium brunnescens Limpr.   4/0
SCMA9 Schistidium maritimum (Turn.) Bruch & Schimp. in B.S.G. seaside schistidium moss 5/0
SCRI4 Schistidium rivulare (Brid.) Podp. streamside schistidium moss 4/0
SCTR7 Schistidium trichodon (Brid.) Poelt schistidium moss 3/0
SCPE9 Schistostega pennata (Hedw.) Web. & Mohr. schistostega moss 1/0
SCPU Schizachne purpurascens (Torr.) Swallen false melic 0/1
AVTO Avena torreyi Nash   0/1
SCBR4 Schizachyrium brevifolium (Sw.) Nees ex Büse serillo dulce    
ANBR12 Andropogon brevifolius Sw.   1/0
SCCI2 Schizachyrium cirratum (Hack.) Woot. & Standl. Texas bluestem    
ANCI Andropogon cirratus Hack.   0/1
SCCO10 Schizachyrium condensatum (Kunth) Nees Colombian bluestem    
ANCO15 Andropogon condensatus Kunth   2/0
SCLI11 Schizachyrium littorale (Nash) Bickn. shore little bluestem 0/1
ANLI5 Andropogon littoralis Nash   0/1
SCMA3 Schizachyrium maritimum (Chapman) Nash gulf bluestem    
ANMA10 Andropogon maritimus Chapman   0/1
SCNI2 Schizachyrium niveum (Swallen) Gould pinescrub bluestem    
ANNI4 Andropogon niveus Swallen   0/1
SCRH Schizachyrium rhizomatum (Swallen) Gould Florida little bluestem    
ANRH4 Andropogon rhizomatus Swallen   0/1
SCSAH Schizachyrium sanguineum (Retz.) Alston var. hirtiflorum (Nees) Hatch crimson bluestem    
ANHI4 Andropogon hirtiflorus (Nees) Kunth   0/1
SCSAS Schizachyrium sanguineum (Retz.) Alston var. sanguineum crimson bluestem    
ANSE8 Andropogon semiberbis (Nees) Kunth   0/1
SCSC Schizachyrium scoparium (Michx.) Nash little bluestem 8/2
SCSCD Schizachyrium scoparium (Michx.) Nash var. divergens (Hack.) Gould little bluestem    
ANDI8 Andropogon divergens (Hack.) Anderss. ex A.S. Hitchc.   0/1
SCSCS Schizachyrium scoparium (Michx.) Nash var. scoparium little bluestem    
ANSC10 Andropogon scoparius Michx.   2/1
ANSCN2 Andropogon scoparius Michx. var. neomexicanus (Nash) A.S. Hitchc.   0/1
SCSCS3 Schizachyrium scoparium (Michx.) Nash var. stoloniferum (Nash) J. Wipff creeping bluestem    
ANST5 Andropogon stolonifer (Nash) A.S. Hitchc.   0/1
SCTE5 Schizachyrium tenerum Nees slender little bluestem    
ANTE5 Andropogon tener (Nees) Kunth   2/1
SCPU2 Schizaea pusilla Pursh little curlygrass fern 2/1
SCHIZ7 Schizanthus Ruiz & Pavón schizanthus 4/0
SCPI Schizanthus pinnatus Ruiz & Pavón poorman's orchid 1/0
SCPA23 Schizolobium parahybum (Vell.) Blake Brazilian firetree 1/0
SCHY8 Schizophragma hydrangeoides Siebold & Zucc. [excluded] 2/0
SCCO24 Schizostylis coccinea Backh. & Harv. Kaffir-lily 3/0
SCBR5 Schlegelia brachyantha Griseb. higuerito de sierra 2/0
SCFO2 Schleinitzia fosbergii L.I.Nevling & Ch.J.Niezgoda strand tangantangan 7/0
SCTR2 Schlumbergera truncata (Haw.) Moran false Christmas cactus    
ZYTR Zygocactus truncatus (Haw.) K. Schum.   5/0
SCDR Schoenocaulon drummondii Gray green feathershank 1/0
SCTE2 Schoenocaulon texanum Scheele Texas feathershank 2/0
SCAR5 Schoenocrambe argillacea (Welsh & Atwood) Rollins Uinta Basin plainsmustard 3/0
SCLI12 Schoenocrambe linearifolia (Gray) Rollins slimleaf plainsmustard 1/0
SILI7 Sisymbrium linearifolium (Gray) Payson   3/0
SCLI Schoenocrambe linifolia (Nutt.) Greene flaxleaf plainsmustard 4/0
SCCR Schoenolirion croceum (Michx.) Alph. Wood yellow sunnybell 4/0
SCACA Schoenoplectus acutus (Muhl. ex Bigelow) A.& D. Löve var. acutus hardstem bulrush 1/0
SCAC Scirpus acutus Muhl. ex Bigelow   1/0
SCACO2 Schoenoplectus acutus (Muhl. ex Bigelow) A.& D. Löve var. occidentalis (S. Wats.) S.G. Sm. tule    
SCOC5 Scirpus occidentalis (S. Wats.) Chase   0/1
SCAM6 Schoenoplectus americanus (Pers.) Volk. ex Schinz & R. Keller chairmaker's bulrush 1/0
SCAM2 Scirpus americanus Pers.   1/1
SCOL Scirpus olneyi Gray   0/1
SCCA11 Schoenoplectus californicus (C.A. Mey.) Palla California bulrush 1/0
SCCA Scirpus californicus (C.A. Mey.) Steud.   1/0
SCET2 Schoenoplectus etuberculatus (Steud.) Soják Canby's bulrush    
SCET3 Scirpus etuberculatus (Steud.) Kunze   0/1
SCFL11 Schoenoplectus fluviatilis (Torr.) M.T. Strong river bulrush 1/1
SCFL Scirpus fluviatilis (Torr.) Gray   2/1
SCHA9 Schoenoplectus hallii (Gray) S.G. Sm. Hall's bulrush    
SCHA Scirpus hallii Gray   0/1
SCHE5 Schoenoplectus heterochaetus (Chase) Soják slender bulrush    
SCHE Scirpus heterochaetus Chase   0/1
SCMA8 Schoenoplectus maritimus (L.) Lye cosmopolitan bulrush 1/0
SCFE4 Scirpus fernaldii Bickn.   0/1
SCMA Scirpus maritimus L.   2/0
SCPA4 Scirpus paludosus A. Nels.   0/1
SCMU10 Schoenoplectus mucronatus (L.) Palla bog bulrush 1/0
SCMU Scirpus mucronatus L.   0/1
SCNO5 Schoenoplectus novae-angliae (Britt.) M.T. Strong New England bulrush    
SCNO3 Scirpus novae-angliae Britt.   0/1
SCPUP5 Schoenoplectus pungens (Vahl) Palla var. pungens common threesquare    
SCPU3 Scirpus pungens Vahl   1/0
SCPU13 Schoenoplectus purshianus (Fern.) M.T. Strong weakstalk bulrush    
SCDE4 Scirpus debilis Pursh, non Lam.   0/1
SCRO5 Schoenoplectus robustus (Pursh) M.T. Strong sturdy bulrush    
SCRO Scirpus robustus Pursh   1/1
SCSU10 Schoenoplectus subterminalis (Torr.) Soják swaying bulrush    
SCSU Scirpus subterminalis Torr.   0/1
SCTA2 Schoenoplectus tabernaemontani (K.C. Gmel.) Palla softstem bulrush 3/1
SCVA Scirpus validus Vahl   2/1
SCTO3 Schoenoplectus torreyi (Olney) Palla Torrey's bulrush    
SCTO Scirpus torreyi Olney   0/1
SCNI Schoenus nigricans L. black bogrush 1/0
SCAM Schwalbea americana L. chaffseed 2/1
SCILL Scilla L. scilla 1/0
SCSI2 Scilla siberica Haw. Siberian squill 2/0
SCIRP Scirpus L. bulrush 2/0
SCAT2 Scirpus atrovirens Willd. green bulrush 5/2
SCCY Scirpus cyperinus (L.) Kunth woolgrass 2/2
SCDI2 Scirpus divaricatus Ell. spreading bulrush 0/1
SCEX Scirpus expansus Fern. woodland bulrush    
SCSY80 Scirpus sylvaticus L. p.p.   0/1
SCGE2 Scirpus georgianus Harper Georgia bulrush 1/1
SCLI5 Scirpus lineatus Michx. drooping bulrush 0/1
SCLO Scirpus longii Fern. Long's bulrush 4/0
SCMI2 Scirpus microcarpus J.& K. Presl panicled bulrush 2/1
SCPA8 Scirpus pallidus (Britt.) Fern. cloaked bulrush 1/1
SCPE2 Scirpus ×peckii Britt. (pro sp.) [atrocinctus × atrovirens and × pedicellatus] 0/1
SCPE4 Scirpus pendulus Muhl. rufous bulrush 1/1
SCPO2 Scirpus polyphyllus Vahl leafy bulrush 0/1
SCAN2 Scleranthus annuus L. German knotgrass 1/1
SCCI Scleria ciliata Michx. fringed nutrush 1/1
SCMU8 Scleria muehlenbergii Steud. Muehlenberg's nutrush    
SCSE2 Scleria setacea auct. non Poir. [misapplied]   0/1
SCOL2 Scleria oligantha Michx. littlehead nutrush 0/1
SCPA5 Scleria pauciflora Muhl. ex Willd. fewflower nutrush 1/1
SCRE Scleria reticularis Michx. netted nutrush 0/1
SCTR Scleria triglomerata Michx. whip nutrush 1/1
SCVE2 Scleria verticillata Muhl. ex Willd. low nutrush 0/1
SCLER10 Sclerocactus Britt. & Rose fishhook cactus 1/0
SCGL3 Sclerocactus glaucus (J.A. Purpus ex K. Schum.) L. Benson Uinta Basin hookless cactus 8/0
SCME4 Sclerocactus mesae-verdae (Boissevain ex Boissevain & C. Davids.) L. Benson Mesa Verde fishhook cactus 11/0
SCPA10 Sclerocactus papyracanthus (Engelm.) N.P. Taylor paperspine fishhook cactus    
PEPA20 Pediocactus papyracanthus (Engelm.) L. Benson   8/0
SCPA9 Sclerocactus parviflorus Clover & Jotter smallflower fishhook cactus 1/0
SCPAP Sclerocactus parviflorus Clover & Jotter ssp. parviflorus smallflower fishhook cactus    
SCCL5 Sclerocactus cloveriae Heil & Porter   2/0
SCPO4 Sclerocactus polyancistrus (Engelm. & Bigelow) Britt. & Rose redspined fishhook cactus 2/0
SCSI3 Sclerocactus sileri (Engelm. ex Coult.) Heil & J.M. Porter Siler's pincushion cactus    
PESI4 Pediocactus sileri (Engelm. ex Coult.) L. Benson   8/0
SCUNW Sclerocactus uncinatus (Galeotti) N.P. Taylor var. wrightii (Engelm.) N.P. Taylor Chihuahuan fishhook cactus 1/0
ANUNW Ancistrocactus uncinatus (Galeottii) L. Benson var. wrightii (Engelm.) L. Benson   6/0
SCWH Sclerocactus whipplei (Engelm. & Bigelow) Britt. & Rose Whipple's fishhook cactus 6/0
PEWH5 Pediocactus whipplei (Engelm. & Bigelow) Arp   1/0
SCWR Sclerocactus wrightiae L. Benson Wright's fishhook cactus 3/0
SCBI3 Sclerocarya birrea (A. Rich.) Hochst. marula 4/0
SCDU2 Sclerochloa dura (L.) Beauv. common hardgrass 2/1
SCUN3 Sclerolepis uniflora (Walt.) B.S.P. pink bogbutton 0/1
SCCE5 Scleropodium cespitans (C. Müll.) L. Koch low scleropodium moss 4/0
SCTO2 Scleropodium touretii (Brid.) L. Koch Touret's scleropodium moss 5/0
SCBR2 Scleropogon brevifolius Phil. burrograss 0/1
SCBI Scoliopus bigelovii Torr. California fetid adderstongue 3/0
SCHA2 Scoliopus hallii S. Wats. Oregon fetid adderstongue 1/0
SCFE Scolochloa festucacea (Willd.) Link common rivergrass 0/2
SCCA18 Scopelophila cataractae (Mitt.) Broth. cataract scopelophila moss 3/0
SCLI13 Scopelophila ligulata (Spruce) Spruce ligulate scopelophila moss 4/0
SCRI2 Scopulophila rixfordii (Brandeg.) Munz & Johnston Rixford's rockwort 2/0
SCSC70 Scorpidium scorpioides (Hedw.) Limpr. scorpidium moss 6/0
SCLA6 Scorzonera laciniata L. cutleaf vipergrass 1/0
SCBO Scribneria bolanderi (Thurb.) Hack. Scribner's grass 0/1
SCCA2 Scrophularia californica Cham. & Schlecht. California figwort 11/0
SCDE Scrophularia desertorum (Munz) R.J. Shaw desert figwort 2/0
SCLA5 Scrophularia laevis Woot. & Standl. Organ Mountain figwort 2/0
SCLA Scrophularia lanceolata Pursh lanceleaf figwort 4/1
SCMA7 Scrophularia macrantha Greene ex Stiefelhagen New Mexico figwort 1/0
SCMA2 Scrophularia marilandica L. carpenter's square 1/1
SCMO4 Scrophularia montana Woot. mountain figwort 2/0
SCNO2 Scrophularia nodosa L. woodland figwort 0/1
SCAN4 Scutellaria antirrhinoides Benth. nose skullcap 3/0
SCBR3 Scutellaria brittonii Porter Britton's skullcap 0/1
SCBU Scutellaria bushii Britt. Bush's skullcap 0/1
SCDR2 Scutellaria drummondii Benth. Drummond's skullcap 2/0
SCEL Scutellaria elliptica Muhl. ex Spreng. hairy skullcap 3/0
SCELE Scutellaria elliptica Muhl. ex Spreng. var. elliptica hairy skullcap    
SCPI2 Scutellaria pilosa Michx.   0/1
SCGA Scutellaria galericulata L. marsh skullcap 7/2
SCIN Scutellaria incana Biehler hoary skullcap 3/1
SCIN2 Scutellaria integrifolia L. helmet flower 7/2
SCLA2 Scutellaria lateriflora L. blue skullcap 4/2
SCNA Scutellaria nana Gray dwarf skullcap 10/0
SCNE2 Scutellaria nervosa Pursh veiny skullcap 0/1
SCOVO Scutellaria ovata Hill ssp. ovata heartleaf skullcap    
SCCO4 Scutellaria cordifolia Muhl.   0/1
SCPA7 Scutellaria parvula Michx. small skullcap 2/1
SCPAM Scutellaria parvula Michx. var. missouriensis (Torr.) Goodman & Lawson Leonard's skullcap    
SCPAL Scutellaria parvula Michx. var. leonardii (Epling) Fern.   2/0
SCPO5 Scutellaria potosina Brandeg. Mexican skullcap 1/0
SCRE3 Scutellaria resinosa Torr. sticky skullcap 0/1
SCSA6 Scutellaria sapphirina (Barneby) Olmstead White Pine skullcap 5/0
SCSA5 Scutellaria saxatilis Riddell smooth rock skullcap 0/1
SCSE5 Scutellaria serrata Andr. showy skullcap 1/1
SCSI6 Scutellaria siphocampyloides Vatke grayleaf skullcap    
SCSI Scutellaria siphocamyploides Vatke [orthographic error]   1/0
SCTU2 Scutellaria tuberosa Benth. Danny's skullcap 6/0
SCJA Scybalium jamaicense (Sw.) Schott & Endl. John crownose 1/0
SECE Secale cereale L. cereal rye 6/1
SEMO Secale montanum Guss., nom. inq.   3/0
SEED Sechium edule (Jacq.) Sw. chayote 3/0
SEVI5 Securidaca virgata Sw. bejuco de sopla 3/0
SEVA4 Securigera varia (L.) Lassen crownvetch    
COVA2 Coronilla varia L.   7/1
SEPU4 Sedella pumila (Benth.) Britt. & Rose Sierra mock stonecrop    
PAPU10 Parvisedum pumilum (Benth.) Clausen   6/0
SEAC Sedum acre L. goldmoss stonecrop 1/1
SEAL Sedum album L. white stonecrop 1/0
SECO Sedum cockerellii Britt. Cockerell's stonecrop 5/0
SEDE Sedum debile S. Wats. orpine stonecrop 3/0
SEDI Sedum divergens S. Wats. Pacific stonecrop 4/0
SEGL3 Sedum glaucophyllum Clausen cliff stonecrop 1/0
SELA Sedum lanceolatum Torr. spearleaf stonecrop 6/0
SENE Sedum nevii Gray Nevius' stonecrop 0/1
SENU Sedum nuttallianum Raf. yellow stonecrop 0/1
SEOB Sedum obtusatum Gray Sierra stonecrop 1/0
SEOBB Sedum obtusatum Gray ssp. boreale Clausen Sierra stonecrop 2/0
SEOBR Sedum obtusatum Gray ssp. retusum (Rose) Clausen Sierra stonecrop 2/0
SEPU Sedum pulchellum Michx. widowscross 6/1
SEPU6 Sedum pusillum Michx. granite stonecrop 2/0
SERE4 Sedum reflexum L. Jenny's stonecrop 0/1
SESA Sedum sarmentosum Bunge stringy stonecrop 4/0
SESP Sedum spathulifolium Hook. broadleaf stonecrop 7/0
SESPP2 Sedum spathulifolium Hook. ssp. purdyi (Jepson) Clausen Purdy's stonecrop 1/0
SESP2 Sedum spurium Bieb. tworow stonecrop 1/0
SEST2 Sedum stenopetalum Pursh wormleaf stonecrop 7/1
SETE3 Sedum ternatum Michx. woodland stonecrop 1/1
SEAP Selaginella apoda (L.) Spring meadow spikemoss 2/0
SEAP3 Selaginella apus Spring   0/1
SELE2 Selaginella lepidophylla (Hook. & Grev.) Spring flower of stone 2/0
SERU Selaginella rupestris (L.) Spring northern selaginella 0/1
SESE Selaginella selaginoides (L.) Beauv. ex Mart. & Schrank club spikemoss 0/1
SEAU Selenia aurea Nutt. golden selenia 0/1
SELEN2 Selenicereus (Berger) Britt. & Rose moonlight cactus 1/0
SEGR10 Selenicereus grandiflorus (L.) Britt. & Rose queen of the night 2/0
SECA15 Seligeria calcarea (Hedw.) Bruch & Schimp. in B.S.G. small limestone moss 4/0
SERE6 Seligeria recurvata (Hedw.) Bruch & Schimp. in B.S.G. recurved small limestone moss 6/0
SEDE7 Sematophyllum demissum (Wils.) Mitt. sematophyllum moss 5/0
SETE5 Sempervivum tectorum L. common houseleek 1/1
SENEC Senecio L. ragwort 3/0
SEAMA Senecio amplectens Gray var. amplectens showy alpine ragwort    
LIAM4 Ligularia amplectens (Gray) W.A. Weber   1/0
SEAMH Senecio amplectens Gray var. holmii (Greene) Harrington Holm's ragwort    
LIHO2 Ligularia holmii (Greene) W.A. Weber   4/0
SEAM2 Senecio ampullaceus Hook. Texas ragwort 2/0
SEAT Senecio atratus Greene tall blacktip ragwort 3/0
SEBI2 Senecio bigelovii Gray nodding ragwort 4/0
SECL Senecio clarkianus Gray Clark's ragwort 2/0
SECO2 Senecio congestus (R. Br.) DC. marsh fleabane    
SEPA12 Senecio palustris (L.) Hook.   0/1
SEEL Senecio elegans L. redpurple ragwort 1/0
SEER2 Senecio eremophilus Richards. desert ragwort 1/0
SEFLD Senecio flaccidus Less. var. douglasii (DC.) B.L. Turner & T.M. Barkl. Douglas' ragwort    
SEDO2 Senecio douglasii DC.   2/0
SEFLF Senecio flaccidus Less. var. flaccidus threadleaf ragwort 1/0
SEDOL2 Senecio douglasii DC. ssp. longilobus (Benth.) W.A. Weber   1/0
SELO Senecio longilobus Benth.   3/0
SEFLM Senecio flaccidus Less. var. monoensis (Greene) B.L. Turner & T.M. Barkl. Mono ragwort 4/0
SEFR3 Senecio fremontii Torr. & Gray dwarf mountain ragwort 5/0
SEFRF Senecio fremontii Torr. & Gray var. fremontii dwarf mountain ragwort 2/0
SEFRI Senecio fremontii Torr. & A. Gray var. inexpectatus Cronquist dwarf mountain ragwort 2/0
SEHY2 Senecio hydrophilus Nutt. water ragwort 2/1
SEIN2 Senecio integerrimus Nutt. lambstongue ragwort 3/1
SEINE Senecio integerrimus Nutt. var. exaltatus (Nutt.) Cronq. Columbia ragwort 5/0
SEJA Senecio jacobaea L. stinking willie 0/1
SELY Senecio lyonii Gray island senecio 1/0
SEMA20 Senecio mandraliscae (Tineo) Jacobsen blue finger 1/0
SEPS Senecio pseudoarnica Less. seaside ragwort 2/1
SERI2 Senecio riddellii Torr. & Gray Riddell's ragwort 1/1
SESC Senecio scorzonella Greene Sierra ragwort 3/0
SESE2 Senecio serra Hook. tall ragwort 2/0
SESP3 Senecio spartioides Torr. & Gray broomlike ragwort 2/1
SESPM Senecio spartioides Torr. & Gray var. multicapitatus (Greenm. ex Rydb.) Welsh broomlike ragwort    
SEMU2 Senecio multicapitatus Greenm. ex Rydb.   5/0
SESY Senecio sylvaticus L. woodland ragwort 0/1
SETR Senecio triangularis Hook. arrowleaf ragwort 8/1
SEVI2 Senecio viscosus L. sticky ragwort 0/1
SEVU Senecio vulgaris L. old-man-in-the-Spring 1/1
SEWA3 Senecio warnockii Shinners Warnock's ragwort 1/0
SEWO Senecio wootonii Greene Wooton's ragwort 4/0
SEAL4 Senna alata (L.) Roxb. emperor's candlesticks 2/0
CAAL14 Cassia alata L.   2/0
SEAL5 Senna alexandrina P. Mill. Alexandrian senna    
SEAN6 Senna angustifolia (Vahl) Batka   1/0
SEAR8 Senna armata (S. Wats.) Irwin & Barneby desertsenna 5/0
CAAR10 Cassia armata S. Wats.   2/0
SEAR13 Senna artemisioides (Gaud. ex DC.) Randell silver senna 1/0
SEBA2 Senna bacillaris (L. f.) Irwin & Barneby whitebark senna 1/0
SEBA3 Senna bauhinioides (Gray) Irwin & Barneby twinleaf senna 2/0
CABA6 Cassia bauhinioides Gray   1/0
SEBI5 Senna bicapsularis (L.) Roxb. Christmasbush 3/0
SECA25 Senna candolleana (Vogel) H.S. Irwin & Barneby 3/0
SECO9 Senna corymbosa (Lam.) Irwin & Barneby Argentine senna 1/0
SEDI8 Senna didymobotrya (Fresen.) Irwin & Barneby African senna 1/0
CADI83 Cassia didymobotrya Fresen.   2/0
SEDUI Senna durangensis (Rose) Irwin & Barneby var. iselyi (Irwin & Barneby) Irwin & Barneby Isely's senna 2/0
SEHE3 Senna hebecarpa (Fern.) Irwin & Barneby American senna 3/0
SEHI2 Senna hirsuta (L.) Irwin & Barneby woolly senna 3/0
SEIT2 Senna italica P. Mill. Port Royal senna 1/0
SELI4 Senna lindheimeriana (Scheele) Irwin & Barneby velvet leaf senna 7/0
CALI3 Cassia lindheimeriana Scheele   1/0
SEMA11 Senna marilandica (L.) Link Maryland senna 1/1
CAMA15 Cassia marilandica L.   3/1
CAME23 Cassia medsgeri Shafer   0/1
SEMU5 Senna multijuga (L.C. Rich.) Irwin & Barneby false sicklepod 1/0
CAMU80 Cassia multijuga L.C. Rich.   2/0
SENI3 Senna nitida (L.C. Rich.) Irwin & Barneby hediondilla 3/0
SEOB4 Senna obtusifolia (L.) Irwin & Barneby Java-bean 5/0
CATO81 Cassia tora auct. non L. [misapplied]   0/1
SEOC2 Senna occidentalis (L.) Link septicweed 2/0
CAOC3 Cassia occidentalis L.   0/1
SEPE4 Senna pendula (Humb. & Bonpl. ex Willd.) Irwin & Barneby valamuerto 1/0
SEPU13 Senna pumilio (Gray) Irwin & Barneby dwarf senna 1/0
SERO8 Senna roemeriana (Scheele) Irwin & Barneby twoleaf senna 3/0
SESE13 Senna septemtrionalis (Viv.) H. Irwin & Barneby senna 1/0
SESI3 Senna siamea (Lam.) Irwin & Barneby Siamese cassia 2/0
SESI5 Senna singueana (Delile) Lock wild cassia    
CASI18 Cassia singueana Delile   1/0
SESO2 Senna sophera (L.) Roxb. algarrobilla 1/0
SESU10 Senna sulfurea (DC. ex Colladon) Irwin & Barneby smooth senna    
CAGL21 Cassia glauca Lam.   1/0
SEUN3 Senna uniflora (P. Mill.) Irwin & Barneby oneleaf senna 1/0
SEWI3 Senna wislizeni (Gray) Irwin & Barneby Wislizenus' senna 2/0
CAWI4 Cassia wislizeni Gray   3/0
SESE3 Sequoia sempervirens (Lamb. ex D. Don) Endl. redwood 31/1
SEQUO2 Sequoiadendron Buchh. giant sequoia 0/1
SEGI2 Sequoiadendron giganteum (Lindl.) Buchh. giant sequoia 15/0
SEGI3 Sequoia gigantea (Lindl.) Decne.   3/0
SERE2 Serenoa repens (Bartr.) Small saw palmetto 9/1
SEAS3 Sericocarpus asteroides (L.) B.S.P. toothed whitetop aster 2/1
SELI5 Sericocarpus linifolius (L.) B.S.P. narrowleaf whitetop aster 1/1
SETO7 Sericocarpus tortifolius (Michx.) Nees Dixie whitetop aster    
SEBI7 Sericocarpus bifoliatus (Walt.) Porter   0/1
SEBI3 Sesbania bispinosa (Jacq.) W. Wight dunchi fiber 1/0
SEAC7 Sesbania aculeata Poiret   1/0
SECA23 Sesbania cannabina Poir. sesbania 1/0
SEDR Sesbania drummondii (Rydb.) Cory poisonbean 2/0
SEEM Sesbania emerus (Aubl.) Urban danglepod 1/0
SEGR5 Sesbania grandiflora (L.) Poir. vegetable hummingbird 4/0
SEHE8 Sesbania herbacea (P. Mill.) McVaugh bigpod sesbania 1/0
SEEX Sesbania exaltata (Raf.) Rydb. ex A.W. Hill   1/0
SEMA9 Sesbania macrocarpa Muhl. ex Raf.   0/1
SEPU7 Sesbania punicea (Cav.) Benth. rattlebox 4/0
DAPU8 Daubentonia punicea (Cav.) DC.   1/0
SETR10 Sesbania tripetii (Poit.) hort. ex Hubb.   1/0
SESE7 Sesbania sericea (Willd.) Link papagayo 1/0
SESE8 Sesbania sesban (L.) Merr. Egyptian riverhemp 1/0
SETO3 Sesbania tomentosa Hook. & Arn. Oahu riverhemp 2/0
SEVE Sesbania vesicaria (Jacq.) Ell. bagpod 1/0
GLVE Glottidium vesicarium (Jacq.) Harper   4/1
SEVI7 Sesbania virgata (Cav.) Poir. wand riverhemp    
SEMA81 Sesbania marginata Benth.   1/0
SEMA3 Sesuvium maritimum (Walt.) B.S.P. slender seapurslane 0/1
SEPO2 Sesuvium portulacastrum (L.) L. shoreline seapurslane 1/0
SESE5 Sesuvium sessile Pers. western seapurslane 0/1
SEAD Setaria adhaerens (Forssk.) Chiov. burr bristlegrass 2/0
SEBA Setaria barbata (Lam.) Kunth East Indian bristlegrass 1/0
SECO4 Setaria corrugata (Ell.) J.A. Schultes coastal bristlegrass 0/1
SEFA Setaria faberi Herrm. Japanese bristlegrass 1/2
SEGR6 Setaria grisebachii Fourn. Grisebach's bristlegrass 1/1
SEIT Setaria italica (L.) Beauv. foxtail bristlegrass 2/2
CHIT Chaetochloa italica (L.) Scribn.   0/1
SELE6 Setaria leucopila (Scribn. & Merr.) K. Schum. streambed bristlegrass 2/0
SELI3 Setaria liebmannii Fourn. Liebmann's bristlegrass 0/1
SEMA4 Setaria macrosperma (Scribn. & Merr.) K. Schum. coral bristlegrass 0/1
SEMA5 Setaria macrostachya Kunth large-spike bristlegrass 1/1
SEMA6 Setaria magna Griseb. giant bristlegrass 0/1
CHMA9 Chaetochloa magna (Griseb.) Scribn.   2/1
SEME6 Setaria megaphylla (Steud.) T. Dur. & Schinz bigleaf bristlegrass 2/0
SENI2 Setaria nigrirostris (Nees) T. Dur. & Schinz black bristlegrass 2/0
SEPA6 Setaria palmifolia (Koenig) Stapf palmgrass 3/1
SEPA10 Setaria parviflora (Poir.) Kerguélen marsh bristlegrass 1/0
CHIM2 Chaetochloa imberbis (Poir.) Scribn.   0/1
SEGE Setaria geniculata auct. non (Wild.) Beauv. [misapplied]   2/1
SEPUP3 Setaria pumila (Poir.) Roemer & J.A. Schultes ssp. pallidefusca (Schumacher) B.K. Simon cattail grass    
SEPUP Setaria pumila (Poir.) Roemer & J.A. Schultes ssp. pallidifusca (Schumacher) B.K. Simon [orthographic variant]   1/0
SEPUP2 Setaria pumila (Poir.) Roemer & J.A. Schultes ssp. pumila yellow foxtail    
CHGL12 Chaetochloa glauca (L.) Scribn.   0/1
SEGL2 Setaria glauca (L.) Beauv.   5/0
SELU4 Setaria lutescens (Weigel) F.T. Hubbard   0/1
SERA2 Setaria rariflora Mikan ex Trin. Brazilian bristlegrass 1/0
SEREF Setaria reverchonii (Vasey) Pilger ssp. firmula (A.S. Hitchc. & Chase) W.E. Fox knot grass    
PAFI10 Panicum firmulum A.S. Hitchc. & Chase   0/1
SERER Setaria reverchonii (Vasey) Pilger ssp. ramiseta (Scribn.) W.E. Fox Rio Grande bristlegrass    
PARA10 Panicum ramisetum Scribn.   0/1
SERER2 Setaria reverchonii (Vasey) Pilger ssp. reverchonii Reverchon's bristlegrass    
PARE10 Panicum reverchonii Vasey   0/1
SESC2 Setaria scheelei (Steud.) A.S. Hitchc. southwestern bristlegrass 0/1
SESE4 Setaria setosa (Sw.) P. Beauv. West Indian bristlegrass 1/0
SEVE3 Setaria verticillata (L.) Beauv. hooked bristlegrass 1/2
CHVE7 Chaetochloa verticillata (L.) Scribn.   0/1
SEVI3 Setaria villosissima (Scribn. & Merr.) K. Schum. hairyleaf bristlegrass 0/1
SEVI4 Setaria viridis (L.) Beauv. green bristlegrass 3/1
SEVIV Setaria viridis (L.) Beauv. var. viridis green bristlegrass    
CHVI13 Chaetochloa viridis (L.) Scribn.   0/1
SEVU2 Setaria vulpiseta (Lam.) Roemer & J.A. Schultes plains bristlegrass 1/0
SECA4 Seymeria cassioides (J.F. Gmel.) Blake yaupon blacksenna 3/0
SEPE2 Seymeria pectinata Pursh piedmont blacksenna 2/0
SHEPH Shepherdia Nutt. buffaloberry 0/1
SHAR Shepherdia argentea (Pursh) Nutt. silver buffaloberry 8/1
LEAR10 Lepargyrea argentea (Pursh) Greene   0/1
SHCA Shepherdia canadensis (L.) Nutt. russet buffaloberry 6/0
LECA13 Lepargyrea canadensis (L.) Greene   0/1
SHRO Shepherdia rotundifolia Parry roundleaf buffaloberry 2/0
SHAR2 Sherardia arvensis L. blue fieldmadder 1/1
SHRO2 Shinnersoseris rostrata (Gray) S. Tomb beaked skeletonweed    
LYRO2 Lygodesmia rostrata (Gray) Gray   0/1
SHGA Shortia galacifolia Torr. & Gray Oconee bells 6/0
SIVI2 Sibara virginica (L.) Rollins Virginia winged rockcress 1/0
ARVI10 Arabis virginica (L.) Poir.   0/1
SIPR Sibbaldia procumbens L. creeping sibbaldia 2/1
SITR3 Sibbaldiopsis tridentata (Ait.) Rydb. shrubby fivefingers 0/1
POTR7 Potentilla tridentata Ait.   1/0
SIOD Sicana odorifera (Vell.) Naud. casa banana 1/0
SIAN Sicyos angulatus L. oneseed burr cucumber 3/2
SIGL Sicyos glaber Woot. smooth burr cucumber 2/0
SIHI5 Sicyos hillebrandii St. John Maui burr cucumber 1/0
SILA Sicyos laciniatus L. cutleaf burr cucumber 2/0
SIAC3 Sida acuta Burm. f. common wireweed 3/0
SICI Sida ciliaris L. bracted fanpetals 1/0
SIEL Sida elliottii Torr. & Gray Elliott's fanpetals 0/1
SIFA Sida fallax Walp. yellow 'lima 3/0
SIGL5 Sida glomerata Comm. ex Cav. clustered fanpetals 1/0
SIHE3 Sida hermaphrodita (L.) Rusby Virginia fanpetals 0/1
SIJA Sida jamaicensis L. Jamaican fanpetals 1/0
SILI Sida lindheimeri Engelm. & Gray showy fanpetals 1/0
SIRE7 Sida repens Domb. ex Cav. Javanese fanpetals 1/0
SIRH Sida rhombifolia L. Cuban jute 1/0
SISP Sida spinosa L. prickly fanpetals 1/1
SIDAL Sidalcea Gray checkerbloom 1/0
SICAR Sidalcea calycosa M.E. Jones ssp. rhizomata (Jepson) Munz Pt. Reyes checkerbloom    
SIRH2 Sidalcea rhizomata Jepson   1/0
SICA3 Sidalcea candida Gray white checkerbloom 7/0
SICO2 Sidalcea covillei Greene Owens Valley sidalcea 3/0
SIDI Sidalcea diploscypha (Torr. & Gray) Gray fringed checkerbloom 1/0
SIGL2 Sidalcea glaucescens Greene waxy checkerbloom 2/0
SIHE4 Sidalcea hendersonii S. Wats. Henderson's checkerbloom 1/0
SIHI Sidalcea hickmanii Greene chaparral checkerbloom 1/0
SIHIA Sidalcea hickmanii Greene ssp. anomala C.L. Hitchc. Cuesta Pass checker 2/0
SIMA Sidalcea malachroides (Hook. & Arn.) Gray mapleleaf checkerbloom 2/0
SIMA2 Sidalcea malviflora (DC.) Gray ex Benth. dwarf checkerbloom 4/0
SIMAM Sidalcea malviflora (DC.) Gray ex Benth. ssp. malviflora dwarf checkerbloom 2/0
SIMAS Sidalcea malviflora (DC.) Gray ex Benth. ssp. sparsifolia C.L. Hitchc. dwarf checkerbloom 3/0
SINE3 Sidalcea neomexicana Gray salt spring checkerbloom 7/1
SIOR Sidalcea oregana (Nutt. ex Torr. & Gray) Gray Oregon checkerbloom 5/1
SIPE4 Sidalcea pedata Gray birdfoot checkerbloom 4/0
SIMU4 Sidastrum multiflorum (Jacq.) Fryxell manyflower sandmallow 1/0
SIRO3 Sideritis romana L. simplebeak ironwort 0/1
SILA20 Sideroxylon lanuginosum Michx. gum bully 0/1
SILAL3 Sideroxylon lanuginosum Michx. ssp. lanuginosum gum bully    
BULA Bumelia lanuginosa (Michx.) Pers.   3/3
SILY Sideroxylon lycioides L. buckthorn bully 1/1
BULY Bumelia lycioides (L.) Pers.   3/1
SIAC Silene acaulis (L.) Jacq. moss campion 9/1
SIAN2 Silene antirrhina L. sleepy silene 5/1
SIAR Silene armeria L. sweet William silene 1/1
SIBE4 Silene bernardina S. Wats. Palmer's catchfly 2/0
SICA4 Silene californica Dur. Indian pink 5/0
SICA5 Silene campanulata S. Wats. Red Mountain catchfly 1/0
SICA6 Silene caroliniana Walt. sticky catchfly 5/1
SICO14 Silene coeli-rosa (L.) Godr. rose silene 1/0
SICO3 Silene conica L. striped corn catchfly 1/1
SIDI2 Silene dichotoma Ehrh. dichotoma silene 2/1
SIDI4 Silene dioica (L.) Clairville red catchfly 2/0
LYDI5 Lychnis dioica L.   1/1
MERU7 Melandrium rubrum (Weig.) Garcke   2/0
SIDO Silene douglasii Hook. seabluff catchfly 5/0
SIDRD Silene drummondii Hook. var. drummondii Drummond's campion    
GADR3 Gastrolychnis drummondii (Hook.) A.& D. Löve   3/0
LYDR2 Lychnis drummondii (Hook.) S. Wats.   0/1
SIGA Silene gallica L. common catchfly 4/0
SIAN7 Silene anglica L.   0/1
SIHO Silene hookeri Nutt. Hooker's silene 1/0
SIHOH Silene hookeri Nutt. ssp. hookeri Hooker's silene 2/0
SIINI2 Silene involucrata (Cham. & Schlecht.) Bocquet ssp. involucrata arctic catchfly    
LYAF Lychnis affinis J. Vahl ex Fries   0/1
SILA2 Silene laciniata Cav. cardinal catchfly 10/0
SILA21 Silene latifolia Poir. bladder campion 2/0
SILAA3 Silene latifolia Poir. ssp. alba (P. Mill.) Greuter & Burdet bladder campion    
LYAL Lychnis alba P. Mill.   4/1
SIAL12 Silene alba (P. Mill.) Krause   0/1
SILE2 Silene lemmonii S. Wats. Lemmon's catchfly 1/0
SIME Silene menziesii Hook. Menzies' campion 0/1
SIMEM2 Silene menziesii Hook. ssp. menziesii var. menziesii Menzies' campion    
ANME5 Anotites menziesii (Hook.) Greene   4/0
SINO Silene noctiflora L. nightflowering silene 1/1
SINU2 Silene nutans L. Eurasian catchfly 0/1
SIOR3 Silene oregana S. Wats. Oregon silene 4/0
SIPA4 Silene parryi (S. Wats.) C.L. Hitchc. & Maguire Parry's silene 5/0
SIPEM Silene petersonii Maguire var. minor C.L. Hitchc. & Maguire plateau catchfly 2/0
SIPO Silene polypetala (Walter) Fernald & B.G. Schub. eastern fringed catchfly 1/0
SIRE2 Silene regia Sims royal catchfly 4/1
SIRO4 Silene rotundifolia Nutt. roundleaf catchfly 0/1
SISCS3 Silene scouleri Hook. ssp. scouleri var. scouleri simple campion    
SIGR11 Silene grandis Eastw.   1/0
SISE10 Silene serpentinicola T.W.Nelson & J.P.Nelson serpentine Indian pink 3/0
SIST Silene stellata (L.) Ait. f. widowsfrill 2/1
SISU3 Silene subciliata B.L. Rob. Louisiana catchfly 2/0
SIUN Silene uniflora Roth sea campion    
SIMA13 Silene maritima With.   6/0
SIURU Silene uralensis (Rupr.) Bocquet ssp. uralensis apetalous catchfly    
LYAP Lychnis apetala L., non Silene apetala Willd.   0/1
SIVI4 Silene virginica L. fire pink 5/1
SIVU Silene vulgaris (Moench) Garcke maidenstears 1/0
SICU6 Silene cucubalus Wibel   2/0
SILA16 Silene latifolia (P. Mill.) Britten & Rendle, non Poir.   1/1
SIAL Silphium albiflorum Gray white rosinweed 2/0
SIAS2 Silphium asteriscus L. starry rosinweed 6/1
SICO5 Silphium compositum Michx. kidneyleaf rosinweed 5/0
SICOR2 Silphium compositum Michx. var. reniforme (Raf. ex Nutt.) Torr. & Gray kidneyleaf rosinweed    
SIRE9 Silphium reniforme Raf. ex Nutt.   0/1
SIGR4 Silphium gracile Gray slender rosinweed 4/0
SIIN2 Silphium integrifolium Michx. wholeleaf rosinweed 2/1
SILA3 Silphium laciniatum L. compassplant 4/1
SIPE2 Silphium perfoliatum L. cup plant 5/2
SIRA2 Silphium radula Nutt. roughstem rosinweed 2/0
SITE Silphium terebinthinaceum Jacq. prairie rosinweed 3/2
SITR7 Silphium trifoliatum L. whorled rosinweed 1/1
SIMA3 Silybum marianum (L.) Gaertn. blessed milkthistle 2/0
MAMA27 Mariana mariana (L.) Hill   0/1
SIGL3 Simarouba glauca DC. paradisetree 1/0
SICH Simmondsia chinensis (Link) Schneid. jojoba 4/1
SICA7 Simsia calva (Engelm. & Gray) Gray awnless bushsunflower 1/0
SIAL5 Sinapis alba L. white mustard 0/1
BRHI2 Brassica hirta Moench   1/0
SIAR4 Sinapis arvensis L. charlock mustard 4/1
BRKA Brassica kaber (DC.) L.C. Wheeler   3/0
SISP6 Sinningia speciosa (G. Lodd.) Hiern Brazilian gloxinia 6/0
SIAL2 Sisymbrium altissimum L. tall tumblemustard 6/0
NOAL3 Norta altissima (L.) Britt.   0/1
SIIR Sisymbrium irio L. London rocket 4/0
SILO3 Sisymbrium loeselii L. small tumbleweed mustard 1/0
SIOF Sisymbrium officinale (L.) Scop. hedgemustard 4/0
EROF Erysimum officinale L.   0/1
SISYR Sisyrinchium L. blue-eyed grass 5/0
SIAL3 Sisyrinchium albidum Raf. white blue-eyed grass 2/1
SIHA4 Sisyrinchium hastile Bickn. p.p.   0/1
SIAN3 Sisyrinchium angustifolium P. Mill. narrowleaf blue-eyed grass 10/1
SIGR10 Sisyrinchium graminoides Bickn.   0/1
SIAT Sisyrinchium atlanticum Bickn. eastern blue-eyed grass 4/2
SIBE Sisyrinchium bellum S. Wats. western blue-eyed grass 9/0
SICA8 Sisyrinchium californicum (Ker-Gawl. ex Sims) Ait. golden blue-eyed grass 3/0
SICA9 Sisyrinchium campestre Bickn. prairie blue-eyed grass 0/1
SIFU2 Sisyrinchium fuscatum Bickn. coastal plain blue-eyed grass    
SIAR2 Sisyrinchium arenicola Bickn.   0/1
SIHA2 Sisyrinchium halophilum Greene Nevada blue-eyed grass 4/0
SIID Sisyrinchium idahoense Bickn. Idaho blue-eyed grass 4/0
SIIDI Sisyrinchium idahoense Bickn. var. idahoense Idaho blue-eyed grass 2/0
SIMO2 Sisyrinchium montanum Greene strict blue-eyed grass 6/0
SIMOM Sisyrinchium montanum Greene var. montanum strict blue-eyed grass    
SIST4 Sisyrinchium strictum Bickn.   0/1
SIMU3 Sisyrinchium mucronatum Michx. needletip blue-eyed grass 1/1
SIRO5 Sisyrinchium rosulatum Bickn. annual blue-eyed grass 1/0
SICA12 Sium carsonii Dur. ex Gray Carson's waterparsnip 0/1
SISU2 Sium suave Walt. hemlock waterparsnip 0/1
SICI2 Sium cicutifolium Schrank   0/1
SMUV Smallanthus uvedalius (L.) Mackenzie ex Small hairy leafcup    
POUV2 Polymnia uvedalia (L.) L.   4/1
SMCA Smelowskia calycina (Steph. ex Willd.) C.A. Mey. alpine smelowskia 8/0
SMOVO Smelowskia ovalis M.E. Jones var. ovalis alpine false candytuft 1/0
SMAS Smilax aspera L. rough bindweed 1/0
SMAU Smilax auriculata Walt. earleaf greenbrier 1/0
SMBO2 Smilax bona-nox L. saw greenbrier 4/2
SMEC Smilax ecirrata (Engelm. ex Kunth) S. Wats. upright carrionflower 0/1
SMGL Smilax glauca Walt. cat greenbrier 3/1
SMHE Smilax herbacea L. smooth carrionflower 3/1
SMLA Smilax laurifolia L. laurel greenbrier 8/2
SMPS Smilax pseudochina L. bamboo vine 0/1
SMTA3 Smilax tamnifolia Michx.   0/1
SMPU Smilax pumila Walt. sarsparilla vine 4/0
SMRO Smilax rotundifolia L. roundleaf greenbrier 5/2
SMSM Smilax smallii Morong lanceleaf greenbrier 3/1
SMLA2 Smilax lanceolata auct. non L. [misapplied]   0/1
SMTA2 Smilax tamnoides L. bristly greenbrier 0/1
SMHI Smilax hispida Muhl. ex Torr.   1/1
SMWA Smilax walteri Pursh coral greenbrier 3/2
SOMA10 Sobralia macrantha Lindl. 1/0
SOGR3 Solandra grandiflora Sw. showy chalicevine 2/0
SWGR Swartzia grandiflora (Sw.) J.F. Gmel.   1/0
SONI5 Solandra nitida Zuccagni chalice vine 6/0
SOLAN Solanum L. nightshade 4/2
SOAM Solanum americanum P. Mill. American black nightshade 4/0
SOAN8 Solanum anguivi Lam. 1/0
SOAV Solanum aviculare G. Forst. New Zealand nightshade 1/0
SOCA3 Solanum carolinense L. Carolina horsenettle 10/1
SOCI Solanum citrullifolium A. Braun watermelon nightshade 1/1
SODI Solanum dimidiatum Raf. western horsenettle 3/0
SOTO5 Solanum torreyi Gray   0/1
SODI2 Solanum diphyllum L. twoleaf nightshade 1/0
SODO Solanum douglasii Dunal greenspot nightshade 5/0
SODU Solanum dulcamara L. climbing nightshade 7/1
SOEL Solanum elaeagnifolium Cav. silverleaf nightshade 4/1
SOFE Solanum fendleri Gray ex Torr. Fendler's horsenettle 2/0
SOHE Solanum heterodoxum Dunal melonleaf nightshade 1/0
SOHI9 Solanum hispidum Pers. devil's fig 1/0
SOIN5 Solanum incanum L. nightshade 4/0
SOJA3 Solanum jamaicense P. Mill. Jamaican nightshade 1/0
SOLYL Solanum lycopersicum L. var. lycopersicum garden tomato    
LYLY2 Lycopersicon lycopersicum (L.) Karst. ex Farw.   0/1
SOMA2 Solanum mammosum L. nipplefruit 3/0
SOMA Solanum marginatum L. f. purple African nightshade 1/0
SOME Solanum melongena L. eggplant 1/0
SONI Solanum nigrum L. black nightshade 1/1
SOPS Solanum pseudocapsicum L. Jerusalem cherry 1/0
SOPT7 Solanum ptycanthum Dunal West Indian nightshade 3/0
SOAM4 Solanum americanum auct. non P. Mill. [misapplied]   1/0
SORO Solanum rostratum Dunal buffalobur nightshade 3/1
SOSE7 Solanum seaforthianum Andr. Brazilian nightshade 1/0
SOSI Solanum sisymbriifolium Lam. sticky nightshade 0/1
SOTO4 Solanum torvum Sw. turkey berry 1/0
SOTR Solanum triflorum Nutt. cutleaf nightshade 3/1
SOTU Solanum tuberosum L. Irish potato 1/0
SOUM Solanum umbelliferum Eschsch. bluewitch nightshade 6/0
SOVI8 Solanum villosum (L.) P. Mill. hairy nightshade 2/0
SOWA Solanum wallacei (Gray) Parish Catalina nightshade 2/0
SOXA Solanum xanti Gray chaparral nightshade 2/0
SOLID Solidago L. goldenrod 5/0
SOAL3 Solidago albopilosa E.L. Braun whitehair goldenrod 2/0
SOAL6 Solidago altissima L. late goldenrod 2/1
SOAR Solidago arguta Ait. Atlantic goldenrod 0/1
SOARB Solidago arguta Ait. var. boottii (Hook.) Palmer & Steyermark Boott's goldenrod    
SOBO Solidago boottii Hook.   0/1
SOBI Solidago bicolor L. white goldenrod 0/1
SOCA4 Solidago caesia L. wreath goldenrod 3/2
SOCA6 Solidago canadensis L. Canada goldenrod 9/3
SOCAG Solidago canadensis L. var. gilvocanescens Rydb. shorthair goldenrod 1/0
SOCAS Solidago canadensis L. var. salebrosa (Piper) M.E. Jones salebrosa goldenrod 5/0
SOCU Solidago curtisii Torr. & Gray mountain decumbent goldenrod 0/1
SOMO3 Solidago monticola Torr. & Gray   0/1
SOCU2 Solidago cutleri Fern. Cutler's alpine goldenrod 0/1
SOER Solidago erecta Pursh showy goldenrod 0/1
SOFI Solidago fistulosa P. Mill. pine barren goldenrod 3/2
SOFL2 Solidago flexicaulis L. zigzag goldenrod 1/2
SOGA Solidago gattingeri Chapman Gattinger's goldenrod 0/1
SOGI Solidago gigantea Ait. giant goldenrod 2/1
SOSE10 Solidago serotina Ait., non Retz.   0/1
SOHI Solidago hispida Muhl. ex Willd. hairy goldenrod 0/1
SOJU Solidago juncea Ait. early goldenrod 2/1
SOLA4 Solidago latissimifolia P. Mill. Elliott's goldenrod    
SOEL2 Solidago elliottii Torr. & Gray   0/1
SOMA4 Solidago macrophylla Pursh largeleaf goldenrod 0/1
SOMI2 Solidago missouriensis Nutt. Missouri goldenrod 5/0
SOMIF Solidago missouriensis Nutt. var. fasciculata Holz. Missouri goldenrod    
SOGL4 Solidago glaberrima Martens   0/1
SOMO Solidago mollis Bartl. velvety goldenrod 0/1
SOMU Solidago multiradiata Ait. Rocky Mountain goldenrod 3/1
SOMUS Solidago multiradiata Ait. var. scopulorum Gray manyray goldenrod 3/0
SONE Solidago nemoralis Ait. gray goldenrod 5/1
SOOD Solidago odora Ait. anisescented goldenrod 5/1
SOPA2 Solidago patula Muhl. ex Willd. roundleaf goldenrod 2/3
SOPAS Solidago patula Muhl. ex Willd. var. strictula Torr. & Gray roundleaf goldenrod    
SOSA2 Solidago salicina Ell.   1/0
SOPE Solidago petiolaris Ait. downy ragged goldenrod 0/1
SOPEA Solidago petiolaris Ait. var. angusta (Torr. & Gray) Gray downy ragged goldenrod    
SOLI Solidago lindheimeriana Scheele   0/1
SOPI Solidago pinetorum Small Small's goldenrod 2/0
SOPU Solidago puberula Nutt. downy goldenrod 0/1
SORA Solidago radula Nutt. western rough goldenrod 0/1
SORU2 Solidago rugosa P. Mill. wrinkleleaf goldenrod 4/2
SORUA Solidago rugosa P. Mill. ssp. aspera (Ait.) Cronq. wrinkleleaf goldenrod    
SODR Solidago drummondii Torr. & Gray   0/1
SOSC Solidago sciaphila Steele shadowy goldenrod 0/1
SOSE Solidago sempervirens L. seaside goldenrod 1/1
SOSEM Solidago sempervirens L. var. mexicana (L.) Fern. seaside goldenrod 2/0
SOSH Solidago shortii Torr. & Gray Short's goldenrod 5/1
SOSI3 Solidago simplex Kunth Mt. Albert goldenrod 1/0
SOSIG2 Solidago simplex Kunth ssp. randii (Porter) Ringius var. gillmanii (Gray) Ringius Rand's goldenrod    
SOGI3 Solidago gillmanii (Gray) Steele   0/1
SOSIR2 Solidago simplex Kunth ssp. randii (Porter) Ringius var. racemosa (Greene) Ringius Rand's goldenrod    
SORA4 Solidago racemosa Greene   0/1
SOSIR3 Solidago simplex Kunth ssp. randii (Porter) Ringius var. randii (Porter) Kartesz & Gandhi Rand's goldenrod    
SORA5 Solidago randii (Porter) Britt.   0/1
SOSIN Solidago simplex Kunth ssp. simplex var. nana (Gray) Ringius dwarf goldenrod    
SODE6 Solidago decumbens Greene   1/0
SOSP2 Solidago speciosa Nutt. showy goldenrod 2/1
SOSPR Solidago speciosa Nutt. var. rigidiuscula Torr. & Gray showy goldenrod    
SORI4 Solidago rigidiuscula (Torr. & Gray) Porter   0/1
SOSPS4 Solidago speciosa Nutt. var. speciosa showy goldenrod 1/0
SOSP4 Solidago sphacelata Raf. autumn goldenrod 1/0
BRSP3 Brachychaeta sphacelata (Raf.) Britt.   0/1
SOSQ Solidago squarrosa Nutt. stout goldenrod 0/1
SOST Solidago stricta Ait. wand goldenrod 1/1
SOTO2 Solidago tortifolia Ell. twistleaf goldenrod 0/1
SOUL Solidago uliginosa Nutt. bog goldenrod 2/2
SOULU Solidago uliginosa Nutt. var. uliginosa bog goldenrod    
SONE5 Solidago neglecta Torr. & Gray   0/1
SOUN Solidago uniligulata (DC.) Porter   0/1
SOUL2 Solidago ulmifolia Muhl. ex Willd. elmleaf goldenrod 0/1
SOWR Solidago wrightii Gray Wright's goldenrod 3/0
SOARA2 Sonchus arvensis L. ssp. arvensis field sowthistle 0/1
SOAS Sonchus asper (L.) Hill spiny sowthistle 10/2
SOOL Sonchus oleraceus L. common sowthistle 4/1
SOGYG Sophora gypsophila B.L. Turner & Powell var. guadalupensis B.L. Turner & Powell Guadalupe Mountain necklacepod 13/0
SOMI11 Sophora microphylla Aiton kowhai 2/0
SONU Sophora nuttalliana B.L. Turner silky sophora    
SOSE8 Sophora sericea Nutt.   0/1
SOSE3 Sophora secundiflora (Ortega) Lag. ex DC. mescal bean 5/0
SOST4 Sophora stenophylla Gray fringeleaf necklacepod 3/0
SOTO3 Sophora tomentosa L. yellow necklacepod 5/0
SOMA11 Sopubia mannii Skan 1/0
SOKI Sorbaria kirilowii (Regel) Maxim. giant false spiraea    
SOAR5 Sorbaria arborea Schneid.   1/0
SOSO2 Sorbaria sorbifolia (L.) A. Braun false spiraea 1/1
SCSO Schizonotus sorbifolius (L.) Lindl.   0/1
SORBU Sorbus L. mountain ash 3/1
SOAM3 Sorbus americana Marsh. American mountain ash 8/1
SOAU Sorbus aucuparia L. European mountain ash 5/1
SODE3 Sorbus decora (Sarg.) C.K. Schneid. northern mountain ash 2/0
SOHY3 Sorbus hybrida L. oakleaf mountain ash 1/0
SOSA3 Sorbus sambucifolia (Cham. & Schlecht.) M. Roemer Siberian mountain ash 1/0
SOSC2 Sorbus scopulina Greene Greene's mountain ash 2/1
SOSCC Sorbus scopulina Greene var. cascadensis (G.N. Jones) C.L. Hitchc. Cascade mountain ash 1/0
SOSI2 Sorbus sitchensis M. Roemer western mountain ash 2/0
SOSIG Sorbus sitchensis M. Roemer var. grayi (Wenzig) C.L. Hitchc. western mountain ash 4/0
SOSIS2 Sorbus sitchensis M. Roemer var. sitchensis Sitka mountain ash 1/0
SOEL3 Sorghastrum elliottii (C. Mohr) Nash slender Indiangrass 0/2
SONU2 Sorghastrum nutans (L.) Nash Indiangrass 10/2
SOSE5 Sorghastrum secundum (Ell.) Nash lopsided Indiangrass 1/1
SOSE6 Sorghastrum setosum (Griseb.) Hitchc. sandysoil Indiangrass 2/0
SOST5 Sorghastrum stipoides (Kunth) Nash needle Indiangrass 1/0
SORGH2 Sorghum Moench sorghum 4/0
SOAL Sorghum almum Parodi Columbus grass 1/0
SOBI2 Sorghum bicolor (L.) Moench sorghum 1/0
SOBIA Sorghum bicolor (L.) Moench ssp. arundinaceum (Desv.) de Wet & Harlan common wild sorghum    
SOAR7 Sorghum arundinaceum (Desv.) Stapf   2/0
SOLA2 Sorghum lanceolatum Stapf   1/0
SOVE3 Sorghum verticilliflorum (Steud.) Stapf   1/0
SOVI5 Sorghum virgatum (Hack.) Stapf   1/0
SOBIB Sorghum bicolor (L.) Moench ssp. bicolor grain sorghum    
SODO2 Sorghum dochna (Forssk.) Snowden   1/0
SODU4 Sorghum durra (Forssk.) Stapf   1/0
SOSU2 Sorghum subglabrescens Schweinf. & Asch.   1/0
SOVU2 Sorghum vulgare Pers.   1/0
SOVUC2 Sorghum vulgare Pers. var. caffrorum (Retz.) Hubbard & Rehder   1/0
SOVUR2 Sorghum vulgare Pers. var. roxburghii (Stapf) Haines   1/0
SOVUT2 Sorghum vulgare Pers. var. technicum (Koern.) Jáv.   1/0
SOBID Sorghum bicolor (L.) Moench ssp. drummondii (Nees ex Steud.) de Wet & Harlan Sudangrass    
SOSU4 Sorghum sudanense (Piper) Stapf   2/0
SOVUD4 Sorghum vulgare Pers. var. drummondii (Nees ex Steud.) Hack. ex Chiov.   1/0
SOHA Sorghum halepense (L.) Pers. Johnsongrass 24/1
HOHA Holcus halepensis L.   0/1
SPARA2 Sparaxis Ker-Gawl. wandflower 2/0
SPAM Sparganium americanum Nutt. American bur-reed 6/2
SPAN Sparganium androcladum (Engelm.) Morong branched bur-reed 3/1
SPLU4 Sparganium lucidum Fern. & Eames   0/1
SPAN2 Sparganium angustifolium Michx. narrowleaf bur-reed 5/1
SPMU3 Sparganium multipedunculatum (Morong) Rydb.   0/1
SPEM2 Sparganium emersum Rehmann European bur-reed 2/0
SPAC Sparganium acaule (Beeby ex Macoun) Rydb.   0/1
SPCH Sparganium chlorocarpum Rydb.   0/1
SPSI Sparganium simplex Huds.   0/1
SPEU Sparganium eurycarpum Engelm. ex Gray broadfruit bur-reed 4/2
SPFL Sparganium fluctuans (Morong) B.L. Robins. floating bur-reed 0/1
SPHY Sparganium hyperboreum Laestad. northern bur-reed 0/1
SPNA Sparganium natans L. small bur-reed    
SPMI Sparganium minimum (Hartman) Wallr.   1/1
SPAL Spartina alterniflora Loisel. smooth cordgrass 1/1
SPBA Spartina bakeri Merr. sand cordgrass 1/2
SPCA Spartina ×caespitosa A.A. Eat. (pro sp.) [patens × pectinata] 0/1
SPCY Spartina cynosuroides (L.) Roth big cordgrass 1/2
SPFO Spartina foliosa Trin. California cordgrass 0/1
SPGR Spartina gracilis Trin. alkali cordgrass 4/2
SPMA6 Spartina maritima (M.A. Curtis) Fern. small cordgrass    
SPST7 Spartina stricta (Ait.) Roth   0/1
SPPA Spartina patens (Ait.) Muhl. saltmeadow cordgrass 1/2
SPPE Spartina pectinata Bosc ex Link prairie cordgrass 4/2
SPMI6 Spartina michauxiana A.S. Hitchc.   0/1
SPSP Spartina spartinae (Trin.) Merr. ex A.S. Hitchc. gulf cordgrass 1/1
SPJU2 Spartium junceum L. Spanish broom 3/0
SPCA2 Spathodea campanulata Beauv. African tuliptree 24/0
SPPL Spathoglottis plicata Blume Philippine ground orchid 3/0
SPAR Spergula arvensis L. corn spurry 1/1
SPCAC Spergularia canadensis (Pers.) G. Don var. canadensis Canadian sandspurry    
TICA4 Tissa canadensis (Pers.) Britt.   0/1
SPMA Spergularia macrotheca (Hornem.) Heynh. sticky sandspurry 1/0
SPMAM Spergularia macrotheca (Hornem.) Heynh. var. macrotheca sticky sandspurry 3/0
SPRU Spergularia rubra (L.) J.& K. Presl red sandspurry 3/0
TIRU Tissa rubra (L.) Britt.   0/1
SPSA5 Spergularia salina J.& K. Presl salt sandspurry    
SPMA2 Spergularia marina (L.) Griseb.   1/0
TIMA Tissa marina (L.) Britt.   0/1
SPGL2 Spermacoce glabra Michx. smooth false buttonweed 2/2
SPDI2 Spermolepis divaricata (Walt.) Raf. ex Ser. roughfruit scaleseed 0/1
SPEC2 Spermolepis echinata (Nutt. ex DC.) Heller bristly scaleseed 0/1
SPIN Spermolepis inermis (Nutt. ex DC.) Mathias & Constance Red River scaleseed    
SPPA8 Spermolepis patens (Nutt. ex DC.) B.L. Robins.   0/1
SPHAE Sphaeralcea St.-Hil. globemallow 4/0
SPAM2 Sphaeralcea ambigua Gray desert globemallow 12/0
SPAMM Sphaeralcea ambigua Gray ssp. monticola Kearney desert globemallow 3/0
SPAN3 Sphaeralcea angustifolia (Cav.) G. Don copper globemallow 16/0
PHCU5 Phymosia cuspidata (Gray) Britt.   0/1
SPANC2 Sphaeralcea angustifolia (Cav.) G. Don var. cuspidata Gray   1/0
SPCAC3 Sphaeralcea caespitosa M. E. Jones var. caespitosa tufted globemallow 1/0
SPCAW Sphaeralcea caespitosa M. E. Jones var. williamsiae N. H. Holmgren Railroad Valley globemallow 8/0
SPCO Sphaeralcea coccinea (Nutt.) Rydb. scarlet globemallow 6/0
SPCOC Sphaeralcea coccinea (Nutt.) Rydb. ssp. coccinea scarlet globemallow    
MACO25 Malvastrum coccineum (Nutt.) Gray   1/1
SPCO2 Sphaeralcea coulteri (S. Wats.) Gray Coulter's globemallow 2/0
SPDI3 Sphaeralcea digitata (Greene) Rydb. juniper globemallow 3/0
SPFE Sphaeralcea fendleri Gray Fendler's globemallow 4/0
SPGR2 Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb. gooseberryleaf globemallow 2/0
SPHA Sphaeralcea hastulata Gray spear globemallow    
SPSU Sphaeralcea subhastata Coult.   2/0
SPIN2 Sphaeralcea incana Torr. ex Gray gray globemallow 7/0
SPLA Sphaeralcea laxa Woot. & Standl. caliche globemallow 3/0
SPLE Sphaeralcea leptophylla (Gray) Rydb. scaly globemallow 3/0
SPMU2 Sphaeralcea munroana (Dougl. ex Lindl.) Spach ex Gray Munro's globemallow 5/0
SPPA2 Sphaeralcea parvifolia A. Nels. smallflower globemallow 4/0
SPTE13 Sphaerocarpos texanus Austin 2/0
SPCA7 Sphaeromeria cana (D.C. Eat.) Heller gray chickensage 1/0
SPCO8 Sphaeromeria compacta (Hall) A. Holmgren, Shultz & Lowrey compact chickensage 3/0
SPSA3 Sphaerophysa salsula (Pallas) DC. alkali swainsonpea 1/0
SPTR6 Sphagneticola trilobata (L.C. Rich.) Pruski Bay Biscayne creeping-oxeye 6/0
SPAN11 Sphagnum angustifolium (C. Jens. ex Russ.) C. Jens. in Tolf sphagnum 1/0
SPBA70 Sphagnum balticum (Russ.) C. Jens. Baltic sphagnum 8/0
SPCA70 Sphagnum capillifolium (Ehrh.) Hedw. sphagnum    
SPNE3 Sphagnum nemoreum Scop. auct. plur.   1/0
SPCE2 Sphagnum centrale C. Jens. in Arnell & C. Jens. sphagnum 2/0
SPCO70 Sphagnum compactum DC. in Lam. & DC. low sphagnum 3/0
SPCO14 Sphagnum contortum Schultz contorted sphagnum 4/0
SPCU4 Sphagnum cuspidatum Ehrh. ex Hoffm. toothed sphagnum 5/0
SPDE5 Sphagnum denticulatum Brid. sphagnum 2/0
SPFA2 Sphagnum fallax (Klinggr.) Klinggr. sphagnum 3/0
SPFI4 Sphagnum fimbriatum Wils. in Wils. & Hook. f. in Hook. f. sphagnum 5/0
SPFL7 Sphagnum flexuosum Dozy & Molk. sphagnum 4/0
SPFU70 Sphagnum fuscum (Schimp.) Klinggr. sphagnum 4/0
SPGI70 Sphagnum girgensohnii Russ. Girgensohn's sphagnum 2/0
SPMA70 Sphagnum magellanicum Brid. Magellan's sphagnum 6/0
SPMA11 Sphagnum majus (Russ.) C. Jens. sphagnum 4/0
SPOB70 Sphagnum obtusum Warnst. sphagnum 4/0
SPPA70 Sphagnum palustre L. prairie sphagnum 4/0
SPPA71 Sphagnum papillosum Lindb. papillose sphagnum 5/0
SPPL70 Sphagnum platyphyllum (Lindb. ex Braithw.) Sull. ex Warnst. sphagnum 1/0
SPQU Sphagnum quinquefarium (Lindb. ex Braithw.) Warnst. sphagnum 2/0
SPRU4 Sphagnum rubellum Wils. sphagnum 2/0
SPSQ70 Sphagnum squarrosum Crome sphagnum 6/0
SPSU3 Sphagnum subnitens Russ. & Warnst. in Warnst. sphagnum 4/0
SPSU9 Sphagnum subsecundum Nees in Sturm sphagnum 2/0
SPTE70 Sphagnum tenellum (Brid.) Bory sphagnum 2/0
SPTE71 Sphagnum teres (Schimp.) Ångstr. in Hartm. sphagnum 6/0
SPWA70 Sphagnum warnstorfii Russ. Warnstorf's sphagnum 3/0
SPZE Sphenoclea zeylanica Gaertn. chickenspike 1/0
SPFI Sphenopholis filiformis (Chapman) Scribn. longleaf wedgescale 0/1
SPIN3 Sphenopholis intermedia (Rydb.) Rydb. slender wedgescale 1/1
SPLO Sphenopholis longiflora (Vasey) A.S. Hitchc. Texas wedgescale 0/1
SPNI Sphenopholis nitida (Biehler) Scribn. shiny wedgescale 0/2
SPOB Sphenopholis obtusata (Michx.) Scribn. prairie wedgescale 2/3
SPPA7 Sphenopholis ×pallens (Biehler) Scribn. (pro sp.) [obtusata × pensylvanica] 0/2
SPPE3 Sphenopholis pensylvanica (L.) A.S. Hitchc. swamp wedgescale    
TRPE6 Trisetum pensylvanicum (L.) Beauv. ex Roemer & J.A. Schultes   0/2
SPCA5 Sphenosciadium capitellatum Gray woollyhead parsnip 5/0
SPST8 Sphenostylis stenocarpa (Hochst. ex A. Rich.) Harms African yam bean 1/0
SPCO3 Sphinctospermum constrictum (S. Wats.) Rose hourglass peaseed 1/0
SPAN4 Spigelia anthelmia L. West Indian pinkroot 3/0
SPMA3 Spigelia marilandica (L.) L. woodland pinkroot 4/1
SPOL Spinacia oleracea L. spinach 1/0
SPIRA Spiraea L. spirea 1/0
SPAL2 Spiraea alba Du Roi white meadowsweet 2/2
SPALL Spiraea alba Du Roi var. latifolia (Ait.) Dippel white meadowsweet 2/0
SPLA2 Spiraea latifolia (Ait.) Borkh.   1/1
SPBE2 Spiraea betulifolia Pallas white spirea 0/1
SPBEC Spiraea betulifolia Pallas var. corymbosa (Raf.) Maxim. shinyleaf meadowsweet    
SPCO12 Spiraea corymbosa Raf.   3/1
SPBEL Spiraea betulifolia Pallas var. lucida (Dougl. ex Greene) C.L. Hitchc. shinyleaf spirea    
SPLU5 Spiraea lucida Dougl. ex Greene   1/0
SPDO Spiraea douglasii Hook. rose spirea 2/0
SPDOM Spiraea douglasii Hook. var. menziesii (Hook.) K. Presl Menzies' spirea    
SPME2 Spiraea menziesii Hook.   2/0
SPHY2 Spiraea hypericifolia L. Iberian spirea 1/0
SPJA Spiraea japonica L. f. Japanese meadowsweet 2/1
SPPY Spiraea ×pyramidata Greene (pro sp.) [betulifolia × douglasii] 1/0
SPSA2 Spiraea salicifolia L. willowleaf meadowsweet 1/0
SPSPS Spiraea splendens Baumann ex K. Koch var. splendens rose meadowsweet 2/0
SPDE Spiraea densiflora Nutt. ex Greenm.   1/0
SPST3 Spiraea stevenii (Schneid.) Rydb. beauverd spirea 1/0
SPTH2 Spiraea thunbergii Sieb. ex Blume Thunberg's meadowsweet 3/0
SPTO2 Spiraea tomentosa L. steeplebush 4/2
SPVA2 Spiraea ×vanhouttei (Briot) Carr. [cantoniensis × trilobata] 4/0
SPVI2 Spiraea virginiana Britt. Virginia meadowsweet 1/1
SPIRA2 Spiranthes L.C. Rich. lady's tresses 3/0
SPBR Spiranthes brevilabris Lindl. Texas lady's tresses    
SPBRB Spiranthes brevilabris Lindl. var. brevilabris Lindl. [superfluous autonym]   1/0
SPCE Spiranthes cernua (L.) L.C. Rich. nodding lady's tresses 13/1
IBCE Ibidium cernuum (L.) House   0/1
SPLA4 Spiranthes lacera (Raf.) Raf. northern slender lady's tresses 3/0
SPLAG Spiranthes lacera (Raf.) Raf. var. gracilis (Bigelow) Luer northern slender lady's tresses 3/0
IBBE Ibidium beckii (Lindl.) House   0/1
IBGR Ibidium gracile (Bigelow) House   0/1
SPGR8 Spiranthes gracilis (Bigelow) Beck   3/0
SPLA3 Spiranthes laciniata (Small) Ames lacelip lady's tresses 2/0
SPLU2 Spiranthes lucida (H.H. Eat.) Ames shining lady's tresses    
IBPL Ibidium plantagineum (Raf.) House   0/1
SPMA5 Spiranthes magnicamporum Sheviak Great Plains lady's tresses 3/0
SPOC Spiranthes ochroleuca (Rydb.) Rydb. yellow nodding lady's tresses    
SPCEO Spiranthes cernua (L.) L.C. Rich. var. ochroleuca (Rydb.) Ames   1/0
SPOD Spiranthes odorata (Nutt.) Lindl. marsh lady's tresses 6/0
SPOV Spiranthes ovalis Lindl. October lady's tresses 1/0
SPOVO Spiranthes ovalis Lindl. var. ovalis October lady's tresses    
IBOV Ibidium ovale (Lindl.) House   0/1
SPPO7 Spiranthes porrifolia Lindl. creamy lady's tresses 3/0
SPPR2 Spiranthes praecox (Walt.) S. Wats. greenvein lady's tresses    
IBPR Ibidium praecox (Walt.) House   0/1
SPRO Spiranthes romanzoffiana Cham. hooded lady's tresses 6/0
IBST Ibidium strictum (Rydb.) House   0/1
SPTU Spiranthes tuberosa Raf. little lady's tresses 3/0
SPGR6 Spiranthes grayi Ames   1/0
SPVE Spiranthes vernalis Engelm. & Gray spring lady's tresses 3/0
IBVE Ibidium vernale (Engelm. & Gray) House   0/1
SPPO Spirodela polyrrhiza (L.) Schleid. common duckmeat 2/1
SPAM5 Splachnum ampullaceum Hedw. small capsule dung moss 7/0
SPSP70 Splachnum sphaericum Hedw. pinkstink dung moss 3/0
SPDU3 Spondias dulcis Parkinson Jewish plum    
SPCY2 Spondias cytherea Sonnerat   1/0
SPORO Sporobolus R. Br. dropseed 2/0
SPAI Sporobolus airoides (Torr.) Torr. alkali sacaton 4/2
SPBU Sporobolus buckleyi Vasey Buckley's dropseed 0/1
SPCL Sporobolus clandestinus (Biehler) A.S. Hitchc. rough dropseed 0/2
SPCA12 Sporobolus canovirens Nash   0/1
SPCOC2 Sporobolus compositus (Poir.) Merr. var. compositus composite dropseed    
SPAS Sporobolus asper (Beauv.) Kunth   1/2
SPCOD3 Sporobolus compositus (Poir.) Merr. var. drummondii (Trin.) Kartesz & Gandhi Drummond's dropseed    
SPDR Sporobolus drummondii (Trin.) Vasey   0/1
SPPI Sporobolus pilosus Vasey   0/1
SPCOM Sporobolus compositus (Poir.) Merr. var. macer (Trin.) Kartesz & Gandhi composite dropseed    
SPMA8 Sporobolus macer (Trin.) A.S. Hitchc.   0/1
SPCO4 Sporobolus contractus A.S. Hitchc. spike dropseed 1/1
SPCR Sporobolus cryptandrus (Torr.) Gray sand dropseed 6/2
SPCU Sporobolus curtissii (Vasey ex Beal) Small ex Scribn. Curtis' dropseed 0/1
SPDO2 Sporobolus domingensis (Trin.) Kunth coral dropseed 0/1
SPEL Sporobolus elongatus R. Br. elongate dropseed 2/0
SPFI6 Sporobolus fimbriatus (Trin.) Nees fringed dropseed 1/0
SPFL2 Sporobolus flexuosus (Thurb. ex Vasey) Rydb. mesa dropseed 3/1
SPFL3 Sporobolus floridanus Chapman Florida dropseed 0/1
SPGI Sporobolus giganteus Nash giant dropseed 2/1
SPHE Sporobolus heterolepis (Gray) Gray prairie dropseed 3/2
SPIN4 Sporobolus indicus (L.) R. Br. smut grass 2/1
SPINI2 Sporobolus indicus (L.) R. Br. var. indicus smut grass    
SPAN6 Sporobolus angustus Buckl.   0/1
SPPO2 Sporobolus poiretii (Roemer & J.A. Schultes) A.S. Hitchc.   0/1
SPIN5 Sporobolus interruptus Vasey black dropseed 0/1
SPJU Sporobolus junceus (Beauv.) Kunth pineywoods dropseed 4/1
SPGR4 Sporobolus gracilis (Trin.) Merr.   0/1
SPNE Sporobolus nealleyi Vasey gyp dropseed 0/1
SPNE2 Sporobolus neglectus Nash puffsheath dropseed 0/2
SPPU3 Sporobolus purpurascens (Sw.) Hamilton purple dropseed 0/1
SPPY2 Sporobolus pyramidatus (Lam.) A.S. Hitchc. Madagascar dropseed 0/1
SPAR3 Sporobolus argutus (Nees) Kunth   0/1
SPPA6 Sporobolus patens auct. non Swallen [misapplied]   0/1
SPPU2 Sporobolus pulvinatus Swallen   0/1
SPSI2 Sporobolus silveanus Swallen Silveus' dropseed 1/1
SPTE4 Sporobolus teretifolius Harper wireleaf dropseed 0/1
SPTE5 Sporobolus texanus Vasey Texas dropseed 0/2
SPTH Sporobolus tharpii A.S. Hitchc. Tharp's dropseed 0/1
SPVA Sporobolus vaginiflorus (Torr. ex Gray) Wood poverty dropseed 0/2
SPVI3 Sporobolus virginicus (L.) Kunth seashore dropseed 0/2
SPWR2 Sporobolus wrightii Munro ex Scribn. big sacaton 3/1
SPFO4 Sprekelia formisissima (L.) Herb. Jacobean Lily 4/0
STAL Stachys albens Gray whitestem hedgenettle 2/0
STAR Stachys arvensis (L.) L. staggerweed 0/1
STAS Stachys aspera Michx. hyssopleaf hedgenettle 0/1
STAM8 Stachys ambigua (Gray) Britt.   0/1
STBU Stachys bullata Benth. California hedgenettle 3/0
STBY Stachys byzantina K. Koch ex Scheele woolly hedgenettle 5/0
STCH Stachys chamissonis Benth. coastal hedgenettle 1/0
STCHC3 Stachys chamissonis Benth. var. cooleyae (Heller) G. Mulligan & D. Munro coastal hedgenettle 2/0
STCO Stachys coccinea Ortega scarlet hedgenettle 5/0
STCO9 Stachys cordata Riddell heartleaf hedgenettle 0/1
STRI4 Stachys riddellii House   1/0
STSA4 Stachys salvioides Small   0/1
STCR7 Stachys crenata Raf. mousesear 1/0
STFL4 Stachys floridana Shuttlw. ex Benth. Florida hedgenettle 5/0
STGE Stachys germanica L. German hedgenettle 0/1
STHY3 Stachys hyssopifolia Michx. hyssopleaf hedgenettle 0/1
STAT2 Stachys atlantica Britt.   0/1
STLA5 Stachys latidens Small ex Britt. broadtooth hedgenettle 0/1
STMA12 Stachys macrantha (K. Koch) Stearn big-sage    
STGR7 Stachys grandiflora (Stephan ex Willd.) Benth. nom. illeg.   1/0
STOF2 Stachys officinalis (L.) Trev. common hedgenettle    
BEOF Betonica officinalis L.   0/1
STPA Stachys palustris L. marsh hedgenettle 4/2
STPIA Stachys pilosa Nutt. var. arenicola (Britt.) G. Mulligan & D. Munro hairy hedgenettle    
STAR5 Stachys arenicola Britt.   0/1
STPY Stachys pycnantha Benth. shortspike hedgenettle 2/0
STRI Stachys rigida Nutt. ex Benth. rough hedgenettle 3/0
STRIR3 Stachys rigida Nutt. ex Benth. var. rigida rough hedgenettle 2/0
STTE Stachys tenuifolia Willd. smooth hedgenettle 2/2
STACH2 Stachytarpheta Vahl porterweed 1/0
STJA Stachytarpheta jamaicensis (L.) Vahl light-blue snakeweed    
STIN2 Stachytarpheta indica Vahl   2/0
STANH2 Stanhopea J. Frost ex Hook. stanhopea 1/0
STEL Stanleya elata M.E. Jones Panamint princesplume 6/0
STPI Stanleya pinnata (Pursh) Britt. desert princesplume 10/1
STPII2 Stanleya pinnata (Pursh) Britt. var. inyoensis (Munz & Roos) Reveal Inyo princesplume 2/0
STPIP Stanleya pinnata (Pursh) Britt. var. pinnata desert princesplume 7/0
STVI Stanleya viridiflora Nutt. green princesplume 4/0
STAPE Stapelia L. stapelia 2/0
STGI Stapelia gigantea N.E. Br. Zulu giant 1/0
STHI7 Stapelia hirsuta L. carrion-flower 6/0
STTR Staphylea trifolia L. American bladdernut 2/1
STAR15 Staurothele areolata (Ach.) Lettau 1/0
STHI3 Steinchisma hians (Ell.) Nash gaping grass 0/1
PAHI11 Panicum hians Ell.   1/1
STELL Stellaria L. starwort 1/0
STAL4 Stellaria alsine Grimm bog chickweed    
ALUL Alsine uliginosa (Murr.) Britt.   0/1
STBOB Stellaria borealis Bigelow ssp. borealis boreal starwort    
ALBO3 Alsine borealis (Bigelow) Britt.   0/1
STCO7 Stellaria corei Shinners Tennessee starwort    
ALTE7 Alsine tennesseensis (C. Mohr) Small   0/1
STCRC Stellaria crassifolia Ehrh. var. crassifolia fleshy starwort    
ALCR11 Alsine crassifolia (Ehrh.) Britt.   0/1
STCU Stellaria cuspidata Willd. ex Schlecht. Mexican starwort 1/0
STFO Stellaria fontinalis (Short & Peter) B.L. Robins. American water starwort    
ALFO2 Alsine fontinalis (Short & Peter) Britt.   0/1
STGR Stellaria graminea L. grasslike starwort 2/0
ALGR5 Alsine graminea (L.) Britt.   0/1
STHO2 Stellaria holostea L. addersmeat 2/0
ALHO5 Alsine holostea (L.) Britt.   0/1
STHU Stellaria humifusa Rottb. saltmarsh starwort    
ALHU2 Alsine humifusa (Rottb.) Britt.   0/1
STLI Stellaria littoralis Torr. beach starwort 2/0
STLO Stellaria longifolia Muhl. ex Willd. longleaf starwort 1/1
STLOL Stellaria longifolia Muhl. ex Willd. var. longifolia longleaf starwort    
ALLO3 Alsine longifolia (Muhl. ex Willd.) Britt.   0/1
STLO2 Stellaria longipes Goldie longstalk starwort 4/1
ALLO4 Alsine longipes (Goldie) Coville   0/1
STME2 Stellaria media (L.) Vill. common chickweed 7/0
STMEM Stellaria media (L.) Vill. ssp. media common chickweed    
ALME5 Alsine media L.   0/1
STPA7 Stellaria palustris (Murr.) Retz. meadow starwort    
ALGL10 Alsine glauca (With.) Britt.   0/1
STPU Stellaria pubera Michx. star chickweed 4/0
ALPU8 Alsine pubera (Michx.) Britt.   0/1
STUM Stellaria umbellata Turcz. ex Kar. & Kir. umbrella starwort 2/1
STENA Stenandrium Nees shaggytuft 1/0
STBA Stenandrium barbatum Torr. & Gray early shaggytuft 12/0
STGR2 Stenanthium gramineum (Ker-Gawl.) Morong eastern featherbells 1/1
STGRR Stenanthium gramineum (Ker-Gawl.) Morong var. robustum (S. Wats.) Fern. eastern featherbells    
STRO5 Stenanthium robustum S. Wats.   0/1
STOC Stenanthium occidentale A. Gray western featherbells 1/0
STNIN Stenaria nigricans (Lam.) Terrell var. nigricans diamondflowers    
HENI4 Hedyotis nigricans (Lam.) Fosberg   1/0
HOAN2 Houstonia angustifolia Michx.   0/1
HONI Houstonia nigricans (Lam.) Fern.   1/0
STTH3 Stenocereus thurberi (Engelm.) Buxbaum organpipe cactus 5/0
LETH5 Lemaireocereus thurberi (Engelm.) Britt. & Rose   5/0
STSA3 Stenogonum salsuginosum Nutt. salty buckwheat 8/0
STCA9 Stenogyne calaminthoides Gray bog stenogyne 1/0
STVA6 Stenomesson variegatum (Ruiz & Pav.) J.F. Macbr. 1/0
STENO2 Stenosiphon Spach stenosiphon 1/0
STLI2 Stenosiphon linifolius (Nutt. ex James) Heynh. false gaura 1/1
STSE Stenotaphrum secundatum (Walt.) Kuntze St. Augustine grass 2/1
STAC Stenotus acaulis (Nutt.) Nutt. stemless mock goldenweed    
STACA Stenotus acaulis (Nutt.) Nutt. var. acaulis (Nutt.) Nutt. [superfluous autonym]   5/0
STAR10 Stenotus armerioides Nutt. thrift mock goldenweed 4/1
STARA Stenotus armerioides Nutt. var. armerioides thrift mock goldenweed 1/0
STIN12 Stephanandra incisa (Thunb.) Zabel laceshrub 1/0
STEPH Stephanomeria Nutt. wirelettuce 4/0
STEX Stephanomeria exigua Nutt. small wirelettuce 4/0
STLA Stephanomeria lactucina Gray lettuce wirelettuce 1/0
STMI13 Stephanomeria minor (Hook.) Nutt. lesser wirelettuce 2/0
STMIM Stephanomeria minor (Hook.) Nutt. var. minor narrowleaf wirelettuce 3/0
STTE2 Stephanomeria tenuifolia (Raf.) Hall   1/0
STPA3 Stephanomeria parryi Gray Parry's wirelettuce 2/0
STPA4 Stephanomeria pauciflora (Torr.) A. Nels. brownplume wirelettuce 9/0
PTPA4 Ptiloria pauciflora (Torr.) Raf.   0/1
STRU3 Stephanomeria runcinata Nutt. desert wirelettuce    
PTRA Ptiloria ramosa Rydb.   0/1
STVI2 Stephanomeria virgata Benth. rod wirelettuce 1/0
STCE3 Sterculia ceramica R. Brown 4/0
STMA Stewartia malacodendron L. silky camellia 0/1
STOV Stewartia ovata (Cav.) Weatherby mountain camellia    
STPE7 Stewartia pentagyna L'Hér.   0/1
STICT Stictocardia Hallier f. stictocardia 1/0
STTI Stictocardia tiliifolia (Desr.) Hallier f. spottedheart 4/0
STBA7 Stigmaphyllon bannisterioides (L.) C. Anderson egg-leaf Amazonvine 3/0
STEM3 Stigmaphyllon emarginatum (Cav.) A. Juss. monarch Amazonvine 3/0
STFL5 Stigmaphyllon floribundum (DC.) C. Anderson woolly Amazonvine 2/0
STSY Stillingia sylvatica Garden ex L. queen's-delight 5/1
STIPA Stipa L. 1/0
STCA35 Stipa caucasica Schmalh. needlegrass 1/0
STEL7 Stipa elegantissima Labill. Australian needlegrass 2/0
STIC Stipa ichu (Ruiz & Pavón) Kunth Peruvian feathergrass 1/0
STTE13 Stipa tenacissima L. [excluded] esparto 1/0
STLA6 Stokesia laevis (Hill) Greene Stokes' aster 3/0
STAL6 Stratiotes aloides L. water soldiers 2/0
STNI5 Strelitzia nicolai Regel & Körn. bird-of-paradise -tree 2/0
STRE5 Strelitzia reginae Aiton bird-of-paradise 11/0
STLO4 Streptanthella longirostris (S. Wats.) Rydb. longbeak streptanthella 6/0
STALP Streptanthus albidus Greene ssp. peramoenus (Greene) Kruckeberg most beautiful jewelflower 1/0
STBE Streptanthus bernardinus (Greene) Parish Laguna Mountain jewelflower 1/0
STBR Streptanthus bracteatus Gray bracted jewelflower 2/0
STCA3 Streptanthus callistus J.L. Morrison Mt. Hamilton jewelflower 1/0
STCA5 Streptanthus carinatus C. Wright ex Gray lyreleaf jewelflower 3/0
STCAA Streptanthus carinatus C. Wright ex Gray ssp. arizonicus (S. Wats.) Kruckeberg, Rodman & Worthington lyreleaf jewelflower    
STAR8 Streptanthus arizonicus S. Wats.   2/0
STCO6 Streptanthus cordatus Nutt. heartleaf twistflower 6/0
STCOP Streptanthus cordatus Nutt. var. piutensis J.T. Howell heartleaf twistflower 2/0
STCU3 Streptanthus cutleri Cory Cutler's jewelflower 1/0
STGLP Streptanthus glandulosus Hook. ssp. pulchellus (Greene) Kruckeberg Mt. Tamalpais jewelflower 3/0
STHI2 Streptanthus hispidus Gray Mt. Diablo jewelflower 1/0
STNI2 Streptanthus niger Greene Tiburon jewelflower 6/0
STOL Streptanthus oliganthus Rollins Masonic Mountain jewelflower 4/0
STSP4 Streptanthus sparsiflorus Rollins sparseflower jewelflower 1/0
STTO3 Streptanthus tortuosus Kellogg shieldplant 3/0
STTOS Streptanthus tortuosus Kellogg var. suffrutescens (Greene) Jepson shieldplant 2/0
STREP5 Streptocarpus Lindl. cape primrose 3/0
STAM2 Streptopus amplexifolius (L.) DC. claspleaf twistedstalk 1/1
STAMA2 Streptopus amplexifolius (L.) DC. var. amplexifolius claspleaf twistedstalk 4/0
STAMC Streptopus amplexifolius (L.) DC. var. chalazatus Fassett tubercle twistedstalk    
STFA3 Streptopus fassettii A.& D. Löve   3/0
STLAC Streptopus lanceolatus (Aiton) Reveal var. curvipes (Vail) Reveal twistedstalk 1/0
STLAR Streptopus lanceolatus (Ait.) Reveal var. roseus (Michx.) Reveal twistedstalk 1/0
STRO4 Streptopus roseus Michx.   2/1
STSTB Streptopus streptopoides (Ledeb.) Frye & Rigg ssp. streptopoides var. brevipes (Baker) Fassett small twistedstalk 1/0
STAS2 Striga asiatica (L.) Kuntze Asiatic witchweed 1/0
STTI2 Stroganowia tiehmii Rollins Talapoosa Peak pearpod 9/0
STEM4 Strophanthus eminii Asch. & Pax ex Pax Emin's strophanthus 1/0
STROP Strophostyles Ell. fuzzybean 1/0
STHE9 Strophostyles helvola (L.) Elliott amberique-bean 0/1
STHE4 Strophostyles helvula (L.) Ell. [orthographic variant]   6/1
STLE6 Strophostyles leiosperma (Torr. & Gray) Piper slickseed fuzzybean    
STPA15 Strophostyles pauciflora (Benth.) S. Wats.   0/1
STUM2 Strophostyles umbellata (Muhl. ex Willd.) Britt. pink fuzzybean 7/1
STNU4 Strychnos nux-vomica L. strychnine tree 1/0
STFIF Stuckenia filiformis (Pers.) Böerner ssp. filiformis fineleaf pondweed    
POFI2 Potamogeton filiformis Pers.   2/1
STFIO Stuckenia filiformis (Pers.) Böerner ssp. occidentalis (J.W. Robbins) Haynes, D.H. Les, & M. Kral western fineleaf pondweed    
POIN15 Potamogeton interior Rydb.   0/1
STPE15 Stuckenia pectinata (L.) Böerner sago pondweed    
POPE6 Potamogeton pectinatus L.   3/1
STVA8 Stuckenia vaginata (Turcz.) Holub sheathed pondweed    
POIN20 Potamogeton interruptus Kit.   0/1
STAQ3 Stylisma aquatica (Walt.) Raf. water dawnflower 1/1
STHU2 Stylisma humistrata (Walt.) Chapman southern dawnflower 1/1
STPI3 Stylisma pickeringii (Torr. ex M.A. Curtis) Gray Pickering's dawnflower 0/1
STPIP3 Stylisma pickeringii (Torr. ex M.A. Curtis) Gray var. pickeringii Pickering's dawnflower    
BRPI5 Breweria pickeringii (Torr. ex M.A. Curtis) Gray   5/0
STCA6 Stylodon carneus (Medik.) Moldenke Carolina false vervain    
VECA12 Verbena carnea Medik.   1/0
STYLO6 Stylogyne A. DC. stylogyne 1/0
STHE3 Stylomecon heterophylla (Benth.) G. Taylor windpoppy 1/0
STDI3 Stylophorum diphyllum (Michx.) Nutt. celandine poppy 6/1
STBI2 Stylosanthes biflora (L.) B.S.P. sidebeak pencilflower 7/1
STBIH Stylosanthes biflora (L.) B.S.P. var. hispidissima (Michx.) Pollard & Ball   1/0
STFL3 Stylosanthes floridana Blake   1/0
STRI3 Stylosanthes riparia Kearney   0/1
STER2 Stylosanthes erecta Beauv. Nigerian stylo 1/0
STGR12 Stylosanthes gracilis Kunth   1/0
STFR80 Stylosanthes fruticosa (Retz.) Alston shrubby pencilflower 1/0
STMU3 Stylosanthes mucronata Willd.   1/0
STGU80 Stylosanthes guianensis (Aubl.) Sw. 1/0
STHA Stylosanthes hamata (L.) Taubert cheesytoes 1/0
STHU4 Stylosanthes humilis Kunth Townsville stylo 1/0
STTA Styphelia tameiameiae (Cham. & Schlecht.) F. Muell. pukiawe 3/0
STAF4 Styphnolobium affine (Torr. & Gray) Walp. Eve's necklacepod    
SOAF Sophora affinis Torr. & Gray   1/0
STJA9 Styphnolobium japonicum (L.) Schott Japanese pagoda tree    
SOJA6 Sophora japonica L.   4/0
STAM4 Styrax americanus Lam. American snowbell 5/2
STPU6 Styrax pulverulentus Michx.   0/1
STGR4 Styrax grandifolius Ait. bigleaf snowbell 1/1
STPL3 Styrax platanifolius Engelm. ex Torr. sycamoreleaf snowbell 1/0
STPLS2 Styrax platanifolius Engelm. ssp. stellatus (Cory) P.W. Fritsch sycamoreleaf snowbell    
STPLS Styrax platanifolius Engelm. var. stellatus Cory   2/0
STPLY Styrax platanifolius Engelm. ssp. youngiae (Cory) P.W. Fritsch Young's snowbell    
STYO Styrax youngiae Cory   3/0
STRE4 Styrax rediviva (Torr.) Wheeler drug snowbell    
STOFC2 Styrax officinalis L. var. californicus (Torr.) Rehd.   2/0
SUCA2 Suaeda calceoliformis (Hook.) Moq. Pursh seepweed 0/1
DODE5 Dondia depressa auct. non (Pursh) Britt. [misapplied]   0/1
SUDE Suaeda depressa auct. non (Pursh) S. Wats. [misapplied]   2/0
SUOC Suaeda occidentalis (S. Wats.) S. Wats.   3/0
SULI Suaeda linearis (Ell.) Moq. annual seepweed    
DOLI Dondia linearis (Ell.) Heller   0/1
SUMAM Suaeda maritima (L.) Dumort. ssp. maritima herbaceous seepweed    
DOMA2 Dondia maritima (L.) Druce   0/1
SUMO Suaeda moquinii (Torr.) Greene Mojave seablite 2/0
SUFR2 Suaeda fruticosa auct. non Forssk. [misapplied]   1/0
SUTA2 Suaeda taxifolia (Standl.) Standl. woolly seablite 1/0
SUAQ Subularia aquatica L. waterawlwort 0/1
SUPR Succisa pratensis Moench devilsbit 1/0
SUIN2 Succisella inflexa (Kluk) G. Beck southern succisella    
SUAU Succisa australis (Wulfen) Reichenb.   0/1
SUSU3 Sullivantia sullivantii (Torr. & Gray) Britt. Sullivant's coolwort 0/1
SUFR3 Sutherlandia frutescens (L.) R. Br. cancer bush 2/0
SWAL Swallenia alexandrae (Swallen) Söderstrom & Decker Eureka dunegrass 8/0
SWPE Swertia perennis L. felwort 7/0
SWUS Swertia usambarensis Engl. 1/0
SWMA Swietenia macrophylla King Honduras mahogany 1/0
SWMA2 Swietenia mahagoni (L.) Jacq. West Indian mahogany 1/0
SYCO Syagrus coronata (C. Martius) Becc. Ouricury palm 2/0
SYMPH Symphoricarpos Duham. snowberry 2/1
SYAL Symphoricarpos albus (L.) Blake common snowberry 2/1
SYALA Symphoricarpos albus (L.) Blake var. albus common snowberry 1/0
SYRA80 Symphoricarpos racemosus Michx.   0/1
SYALL Symphoricarpos albus (L.) Blake var. laevigatus (Fern.) Blake common snowberry 1/0
SYLO Symphoricarpos longiflorus Gray desert snowberry 4/0
SYMO Symphoricarpos mollis Nutt. creeping snowberry 2/0
SYOC Symphoricarpos occidentalis Hook. western snowberry 1/1
SYOR Symphoricarpos orbiculatus Moench coralberry 2/1
SYSY Symphoricarpos symphoricarpos (L.) MacM.   0/1
SYOR2 Symphoricarpos oreophilus Gray mountain snowberry 3/0
SYORU Symphoricarpos oreophilus Gray var. utahensis (Rydb.) A. Nels. Utah snowberry 1/0
SYUT Symphoricarpos utahensis Rydb.   1/0
SYRO Symphoricarpos rotundifolius Gray roundleaf snowberry 4/0
SYROP Symphoricarpos rotundifolius Gray var. parishii (Rydb.) Dempster Parish's snowberry    
SYPA2 Symphoricarpos parishii Rydb.   1/0
SYMPH4 Symphyotrichum Nees aster 1/0
SYAM3 Symphyotrichum ×amethystinum (Nutt.) Nesom [ericoides × novae-angliae]    
ASAM7 Aster ×amethystinus Nutt. (pro sp.) [not hybrid]   0/1
SYAN2 Symphyotrichum anomalum (Engelm.) Nesom manyray aster    
ASAN Aster anomalus Engelm.   0/1
SYAS3 Symphyotrichum ascendens (Lindl.) Nesom western aster 2/0
ASAD6 Aster adscendens Lindl.   0/1
SYBO2 Symphyotrichum boreale (Torr. & Gray) A.& D. Löve northern bog aster 0/1
ASJU Aster junciformis Rydb.   1/0
SYCHC Symphyotrichum chilense (Nees) Nesom var. chilense Pacific aster    
ASCH2 Aster chilensis Nees   1/0
SYCI2 Symphyotrichum ciliatum (Ledeb.) Nesom rayless alkali aster    
BRAN4 Brachyactis angusta (Lindl.) Britt.   0/1
SYCI Symphyotrichum ciliolatum (Lindl.) A.& D. Löve Lindley's aster    
ASLI9 Aster lindleyanus Torr. & Gray   0/1
SYCO3 Symphyotrichum concolor (L.) Nesom eastern silver aster    
ASCO2 Aster concolor L.   3/1
SYCO4 Symphyotrichum cordifolium (L.) Nesom common blue wood aster    
ASCO4 Aster cordifolius L.   1/1
ASSA Aster sagittifolius Wedemeyer ex Willd.   0/1
SYDE2 Symphyotrichum depauperatum (Fern.) Nesom serpentine aster    
ASDE9 Aster depauperatus Fern.   0/1
SYDI2 Symphyotrichum divaricatum (Nutt.) Nesom southern annual saltmarsh aster    
ASEX5 Aster exilis Ell. nom. dub.   0/1
SYDRD Symphyotrichum drummondii (Lindl.) Nesom var. drummondii Drummond's aster    
ASDR Aster drummondii Lindl.   0/1
SYDRT Symphyotrichum drummondii (Lindl.) Nesom var. texanum (Burgess) Nesom Drummond's aster    
ASDRT Aster drummondii Lindl. var. texanus (Burgess) A.G. Jones   1/0
SYDUD2 Symphyotrichum dumosum (L.) Nesom var. dumosum rice button aster 2/0
ASDU Aster dumosus L.   0/1
SYER Symphyotrichum ericoides (L.) Nesom white heath aster 1/1
SYERE Symphyotrichum ericoides (L.) Nesom var. ericoides white heath aster    
ASER3 Aster ericoides L.   2/1
ASMU5 Aster multiflorus Ait.   0/1
SYFAC Symphyotrichum falcatum (Lindl.) Nesom var. commutatum (Torr. & Gray) Nesom white prairie aster    
ASCO22 Aster commutatus (Torr. & Gray) Gray   0/1
SYFAF Symphyotrichum falcatum (Lindl.) Nesom var. falcatum white prairie aster    
VIFA2 Virgulus falcatus (Lindl.) Reveal & Keener   2/0
SYFE Symphyotrichum fendleri (Gray) Nesom Fendler's aster    
ASFE Aster fendleri Gray   0/1
SYFOC Symphyotrichum foliaceum (Lindl. ex DC.) Nesom var. canbyi (Gray) Nesom Canby's aster    
ASPH4 Aster phyllodes Rydb.   0/1
SYFOF Symphyotrichum foliaceum (DC.) Nesom var. foliaceum alpine leafybract aster 2/0
ASFO Aster foliaceus Lindl. ex DC.   3/1
SYFOP Symphyotrichum foliaceum (Lindl. ex DC.) Nesom var. parryi (D.C. Eat.) Nesom Parry's aster 5/0
SYGR5 Symphyotrichum grandiflorum (L.) Nesom largeflower aster    
ASGR Aster grandiflorus L.   0/1
SYLAC Symphyotrichum laeve (L.) A.& D. Löve var. concinnum (Willd.) Nesom smooth blue aster    
ASCO23 Aster concinnus Willd.   0/1
SYLAL3 Symphyotrichum laeve (L.) A.& D. Löve var. laeve smooth blue aster    
ASLA5 Aster laevis L.   1/1
SYLAP Symphyotrichum laeve (L.) A.& D. Löve var. purpuratum (Nees) Nesom smooth blue aster    
ASPU11 Aster purpuratus Nees   0/1
SYLA6 Symphyotrichum lanceolatum (Willd.) Nesom white panicle aster 0/2
SYLAH6 Symphyotrichum lanceolatum (Willd.) Nesom ssp. hesperium (Gray) Nesom var. hesperium white panicle aster    
ASHE Aster hesperius Gray   2/0
SYLAL4 Symphyotrichum lanceolatum (Willd.) Nesom ssp. lanceolatum var. lanceolatum white panicle aster    
ASLA80 Aster lanceolatus Willd.   1/0
ASPA35 Aster paniculatus Lam. p.p., non P. Mill.   0/1
ASSI2 Aster simplex Willd.   2/0
SYLA4 Symphyotrichum lateriflorum (L.) A.& D. Löve calico aster 1/1
SYLAL7 Symphyotrichum lateriflorum (L.) A.& D. Löve var. lateriflorum calico aster    
ASHI4 Aster hirsuticaulis Lindl. ex DC.   0/1
ASLA6 Aster lateriflorus (L.) Britt.   2/1
ASVI16 Aster vimineus Lam.   1/1
SYLO2 Symphyotrichum lowrieanum (Porter) Nesom Lowrie's blue wood aster    
ASLO9 Aster lowrieanus Porter   1/1
SYNO2 Symphyotrichum novae-angliae (L.) Nesom New England aster 2/1
ASNO Aster novae-angliae L.   5/1
SYNO3 Symphyotrichum novi-belgii (L.) Nesom New York aster 0/1
SYNON Symphyotrichum novi-belgii (L.) Nesom var. novi-belgii New York aster    
ASJU6 Aster junceus Ait.   0/1
ASLO10 Aster longifolius Lam.   0/1
ASNO2 Aster novi-belgii L.   5/1
ASSA12 Aster salicifolius sensu Willd., non Lam. nec Ait.   0/1
SYOB Symphyotrichum oblongifolium (Nutt.) Nesom aromatic aster 2/0
ASOB2 Aster oblongifolius Nutt.   1/1
SYON2 Symphyotrichum ontarionis (Wieg.) Nesom bottomland aster    
ASMI14 Aster missouriensis Britt., non Kuntze   0/1
ASON Aster ontarionis Wieg.   1/0
SYOOO Symphyotrichum oolentangiense (Riddell) Nesom var. oolentangiense skyblue aster    
ASAZ Aster azureus Lindl.   0/1
SYPA10 Symphyotrichum parviceps (Burgess) Nesom smallhead aster    
ASPA4 Aster parviceps (Burgess) Mackenzie & Bush   0/1
SYPAP2 Symphyotrichum patens (Ait.) Nesom var. patens late purple aster 1/0
ASPA5 Aster patens Ait.   5/1
SYPH3 Symphyotrichum phlogifolium (Muhl. ex Willd.) Nesom thinleaf late purple aster    
ASPH6 Aster phlogifolius Muhl. ex Willd.   0/1
SYPI2 Symphyotrichum pilosum (Willd.) Nesom hairy white oldfield aster 0/1
SYPIP3 Symphyotrichum pilosum (Willd.) Nesom var. pilosum hairy white oldfield aster 2/0
ASPI2 Aster pilosus Willd.   4/0
SYPIP2 Symphyotrichum pilosum (Willd.) Nesom var. pringlei (Gray) Nesom Pringle's aster    
ASFA4 Aster faxonii Porter   0/1
ASPR13 Aster pringlei (Gray) Britt.   0/1
SYPRN Symphyotrichum praealtum (Poir.) Nesom var. nebraskense (Britt.) Nesom Nebraska aster    
ASNE7 Aster nebraskensis Britt.   0/1
SYPRP Symphyotrichum praealtum (Poir.) Nesom var. praealtum willowleaf aster    
ASPR2 Aster praealtus Poir.   1/0
SYPR7 Symphyotrichum pratense (Raf.) Nesom barrens silky aster    
ASSEM Aster sericeus Vent. var. microphyllus DC.   2/0
SYPR6 Symphyotrichum prenanthoides (Muhl. ex Willd.) Nesom crookedstem aster    
ASPR4 Aster prenanthoides Muhl. ex Willd.   3/1
SYPR4 Symphyotrichum priceae (Britt.) Nesom lavender oldfield aster    
ASPR17 Aster priceae Britt.   0/1
SYPU Symphyotrichum puniceum (L.) A.& D. Löve purplestem aster 0/1
SYPUP Symphyotrichum puniceum (L.) A.& D. Löve var. puniceum purplestem aster    
ASLU Aster lucidulus (Gray) Wieg.   1/0
ASPU5 Aster puniceus L.   3/1
SYSE2 Symphyotrichum sericeum (Vent.) Nesom western silver aster    
ASSE2 Aster sericeus Vent.   2/1
SYSH Symphyotrichum shortii (Lindl.) Nesom Short's aster 2/0
ASSH Aster shortii Lindl.   1/1
SYSPS Symphyotrichum spathulatum (Lindl.) Nesom var. spathulatum western mountain aster 4/0
ASSP16 Aster spathulatus Lindl.   4/0
SYSU5 Symphyotrichum subulatum (Michx.) Nesom eastern annual saltmarsh aster 0/1
ASSU5 Aster subulatus Michx.   3/1
SYTE6 Symphyotrichum tenuifolium (L.) Nesom perennial saltmarsh aster    
ASTE2 Aster tenuifolius L.   0/1
SYTR Symphyotrichum tradescantii (L.) Nesom shore aster 0/1
ASTR3 Aster tradescantii L.   1/1
SYTU2 Symphyotrichum turbinellum (Lindl.) Nesom smooth violet prairie aster    
ASTU2 Aster turbinellus Lindl.   0/1
SYUN Symphyotrichum undulatum (L.) Nesom wavyleaf aster    
ASUN2 Aster undulatus L.   1/1
SYUR Symphyotrichum urophyllum (Lindl.) Nesom white arrowleaf aster    
ASSA13 Aster sagittifolius auct. non Wedemeyer ex Willd. [misapplied]   3/0
SYWA Symphyotrichum walteri (Alexander) Nesom Walter's aster 1/0
ASSQ2 Aster squarrosus sensu Walt., non All.   1/0
SYRA Symphysia racemosa (Vahl) Stearn leatherleaf eelvine 5/0
SYAS Symphytum asperum Lepechin prickly comfrey    
SYAS2 Symphytum asperrimum Donn ex Sims   0/1
SYOF Symphytum officinale L. common comfrey 1/1
SYMPL Symplocarpus Salisb. ex Nutt. skunk cabbage 2/0
SYFO Symplocarpus foetidus (L.) Salisb. ex Nutt. skunk cabbage 10/1
SPFO2 Spathyema foetida (L.) Raf.   0/1
SYTI Symplocos tinctoria (L.) L'Hér. common sweetleaf 7/2
SYHI Synandra hispidula (Michx.) Baill. Guyandotte beauty 3/1
SYFL Syngonanthus flavidulus (Michx.) Ruhl. yellow hatpins 1/1
SYNGO Syngonium Schott syngonium 1/0
SYPI Synthyris pinnatifida S. Wats. featherleaf kittentails 1/0
SYFR Syntrichopappus fremontii Gray yellowray Fremont's-gold 4/0
SYRIN Syringa L. lilac 0/1
SYJO4 Syringa josikaea Jacq. f. ex Reichenb. Hungarian lilac 1/0
SYOB3 Syringa oblata Lindl. 1/0
SYPE Syringa ×persica L. [afghanica × laciniata] Persian lilac 1/0
SYRE2 Syringa reticulata (Blume) Hara Japanese tree lilac 4/0
SYREA Syringa reticulata (Blume) Hara ssp. amurensis (Rupr.) P.S. Greene & M.C. Chang Amur lilac    
SYAM2 Syringa amurensis Rupr.   1/0
SYVI3 Syringa villosa Vahl villous lilac 2/0
SYVU Syringa vulgaris L. common lilac 4/1
SYVO Systenotheca vortriedei (Brandeg.) Reveal & Hardham Vortriede's spineflower 2/0
SYCU Syzygium cumini (L.) Skeels Java plum 1/0
SYJA Syzygium jambos (L.) Alston Malabar plum 4/0
EUJA Eugenia jambos L.   2/0
TAAU2 Tabebuia aurea (Manso) Benth. & Hook. f. ex S. Moore Caribbean trumpet-tree 1/0
TADO2 Tabebuia donnell-smithii Rose primavera 1/0
TAHE Tabebuia heterophylla (DC.) Britt. white cedar 6/0
TAPE4 Tabebuia pentaphylla (DC.) Hemsl.   1/0
TARI Tabebuia rigida Urban roble de sierra 2/0
TASC2 Tabebuia schumanniana Urban roble colorado 2/0
TASE4 Tabebuia serratifolia (Vahl) Nichols. yellow poui 2/0
TADI5 Tabernaemontana divaricata (L.) R. Br. ex Roem. & Schult. pinwheelflower 3/0
TALE2 Tacca leontopetaloides (L.) Kuntze batflower 1/0
TACA8 Taeniatherum caput-medusae (L.) Nevski medusahead 1/0
ELCA13 Elymus caput-medusae L.   0/1
TAIN Taenidia integerrima (L.) Drude yellow pimpernel 0/1
TAMO Taenidia montana (Mackenzie) Cronq. mountain pimpernel    
PSMO2 Pseudotaenidia montana Mackenzie   0/1
TAER Tagetes erecta L. Aztec marigold 1/0
TALE Tagetes lemmonii Gray Lemmon's marigold 3/0
TALU3 Tagetes lucida Cav. sweetscented marigold 1/0
TAMI3 Tagetes minuta L. muster John Henry 2/0
TACA16 Talinum caffrum (Thunb.) Eckl. & Zeyh. flameflower 1/0
TAPO4 Talinum portulacifolium (Forssk.) Asch. Ex Schweinf. flameflower 1/0
TATR2 Talinum triangulare (Jacq.) Willd. Verdolaga-Francesa 3/0
TAIN2 Tamarindus indica L. tamarind 3/0
TAMAR2 Tamarix L. tamarisk 1/1
TAAP Tamarix aphylla (L.) Karst. Athel tamarisk 2/0
TACH2 Tamarix chinensis Lour. five-stamen tamarisk 5/0
TAPE Tamarix pentandra Pallas   7/1
TAGA Tamarix gallica L. French tamarisk 3/0
TARA Tamarix ramosissima Ledeb. saltcedar 3/0
TABA Tanacetum balsamita L. costmary    
CHBA6 Chrysanthemum balsamita (L.) Baill., non L.   0/1
TABIH Tanacetum bipinnatum (L.) Schultz-Bip. ssp. huronense (Nutt.) Breitung Lake Huron tansy    
TAHU Tanacetum huronense Nutt.   0/1
TACA2 Tanacetum camphoratum Less. camphor tansy 2/0
TADO Tanacetum douglasii DC.   1/0
TACO6 Tanacetum coccineum (Willd.) Grierson pyrethum daisy    
CHCO14 Chrysanthemum coccineum Willd.   1/0
TAPA6 Tanacetum parthenium (L.) Schultz-Bip. feverfew 1/0
CHPA33 Chrysanthemum parthenium (L.) Bernh.   0/1
TAVU Tanacetum vulgare L. common tansy 3/1
TARAX Taraxacum F.H. Wigg. dandelion 1/0
TALA2 Taraxacum laevigatum (Willd.) DC. rock dandelion    
LEER2 Leontodon erythrospermum (Andrz. ex Bess.) Britt.   0/1
TAOF Taraxacum officinale G.H. Weber ex Wiggers common dandelion 21/0
TAOFO Taraxacum officinale G.H. Weber ex Wiggers ssp. officinale common dandelion    
LELA13 Leontodon latiloba (DC.) Britt.   0/1
LETA2 Leontodon taraxacum L. p.p.   0/1
TAKO80 Taraxacum kok-saghyz auct. non Rodin [misapplied]   1/0
TAHY4 Targionia hypophylla L. 3/0
TAHO2 Tauschia howellii (Coult. & Rose) J.F. Macbr. Howell's umbrellawort 3/0
TAXOD Taxodium L.C. Rich. bald cypress 2/0
TAAS Taxodium ascendens Brongn. pond cypress 2/1
TADIN Taxodium distichum (L.) Rich. var. nutans (Aiton) Sweet   4/0
TADI2 Taxodium distichum (L.) L.C. Rich. bald cypress 23/3
TAXUS Taxus L. yew 2/0
TABA80 Taxus baccata L. English yew 4/1
TABR2 Taxus brevifolia Nutt. Pacific yew 9/1
TACA7 Taxus canadensis Marsh. Canada yew 3/1
TACU Taxus cuspidata Sieb. & Zucc. Japanese yew 1/0
TAFL Taxus floridana Nutt. ex Chapm. Florida yew 2/0
TASE3 Tayloria serrata (Hedw.) Bruch & Schimp. in B.S.G. serrate dung moss    
TATE6 Tayloria tenuis (With.) Schimp.   4/0
TECOM Tecoma Juss. trumpetbush 1/0
TECA8 Tecoma capensis (Thunb.) Lindl. Cape honeysuckle 2/0
TECA80 Tecomaria capensis (Thunb.) Spach   5/0
TEST Tecoma stans (L.) Juss. ex Kunth yellow trumpetbush 24/0
TEDE4 Tecomanthe dendrophila (Blume) K. Schum. 1/0
TEGR Tectona grandis L. f. teak 1/1
TENU Teesdalia nudicaulis (L.) Ait. f. barestem teesdalia 1/0
TEGR2 Tellima grandiflora (Pursh) Dougl. ex Lindl. bigflower tellima 1/0
TEAT2 Tephroseris atropurpurea (Ledeb.) Holub arctic groundsel 2/0
TEANA Tephrosia angustissima Shuttlw. ex Chapm. var. angustissima narrowleaf hoarypea    
CRAN13 Cracca angustissima (Shuttlw. ex Chapm.) Kuntze   1/0
TECA5 Tephrosia candida DC. white hoarypea 1/0
TEFL Tephrosia florida (F.G. Dietr.) C.E. Wood Florida hoarypea    
CRAM8 Cracca ambigua (M.A. Curtis) Kuntze   1/0
TEHI2 Tephrosia hispidula (Michx.) Pers. sprawling hoarypea    
CRHI5 Cracca hispidula (Michx.) Kuntze   0/1
TELE Tephrosia leiocarpa Gray smoothpod hoarypea 1/0
TEON Tephrosia onobrychoides Nutt. multibloom hoarypea 1/0
TEPO Tephrosia potosina Brandeg. Edwards Plateau hoarypea 1/0
TEPU Tephrosia purpurea (L.) Pers. fishpoison 1/0
TESE2 Tephrosia senna Kunth anil racimillo 1/0
TESI2 Tephrosia sinapou (Buc'hoz) A. Chev. hoarypea 1/0
TETO2 Tephrosia toxicaria (Sw.) Pers.   1/0
TESP Tephrosia spicata (Walt.) Torr. & Gray spiked hoarypea 2/0
CRSP7 Cracca spicata (Walt.) Kuntze   0/1
TEVI9 Tephrosia vicioides Schtdl. red hoarypea    
TETE Tephrosia tenella Gray   1/0
TEVI Tephrosia virginiana (L.) Pers. Virginia tephrosia 6/0
CRVI7 Cracca virginiana L.   0/1
TELA2 Teramnus labialis (L. f.) Spreng. blue wiss 1/0
TEUN Teramnus uncinatus (L.) Sw. cresta de gallo blanco 3/0
TECA Terminalia catappa L. troipical almond 7/0
TESE8 Terminalia sericea Burch. ex DC. clusterleaf 1/0
TECO Tetraclea coulteri Gray Coulter's wrinklefruit 3/0
TEAX Tetradymia axillaris A. Nels. longspine horsebrush 2/0
TECA2 Tetradymia canescens DC. spineless horsebrush 4/0
TEGL Tetradymia glabrata Torr. & Gray littleleaf horsebrush 7/0
TESP2 Tetradymia spinosa Hook. & Arn. shortspine horsebrush 4/0
TETE4 Tetradymia tetrameres (Blake) Strother fourpart horsebrush 1/0
TEBA Tetragastris balsamifera (Sw.) Oken masa 1/0
TEPU6 Tetragonolobus purpureus Moench winged pea    
LOTE8 Lotus tetragonolobus L.   1/0
TEHE2 Tetragonotheca helianthoides L. pineland nerveray 1/1
TERE2 Tetragonotheca repanda (Buckl.) Small showy nerveray 2/0
TESE7 Tetralophozia setiformis (Ehrh.) Schljakov 2/0
TEHU Tetramolopium humile (Gray) Hbd. alpine tetramolopium 1/0
TEAC Tetraneuris acaulis (Pursh) Greene stemless four-nerve daisy 0/1
TEACA2 Tetraneuris acaulis (Pursh) Greene var. acaulis stemless four-nerve daisy 3/0
HYAC4 Hymenoxys acaulis (Pursh) Parker   5/0
TEACA Tetraneuris acaulis (Pursh) Greene var. arizonica (Greene) Parker Arizona four-nerve daisy    
HYACA2 Hymenoxys acaulis (Pursh) Parker var. arizonica (Greene) Parker   1/0
TEAR4 Tetraneuris argentea (Gray) Greene perkysue    
HYAR5 Hymenoxys argentea (Gray) Parker   1/0
TEBR Tetraneuris brandegeei (Porter ex Gray) Parker Brandegee's four-nerve daisy    
HYBR Hymenoxys brandegeei Porter ex Gray   2/0
TEGR3 Tetraneuris grandiflora (Torr. & Gray ex Gray) Parker graylocks four-nerve daisy 2/0
RYGR2 Rydbergia grandiflora (Torr. & Gray ex Gray) Greene   3/0
TEHE4 Tetraneuris herbacea Greene eastern fournerved daisy 0/1
HYACG Hymenoxys acaulis (Pursh) Parker var. glabra (Gray) Parker   3/0
TEIV Tetraneuris ivesiana Greene Ives' fournerved daisy 4/0
TELI3 Tetraneuris linearifolia (Hook.) Greene fineleaf fournerved daisy 0/1
TESCS Tetraneuris scaposa (DC.) Greene var. scaposa stemmy four-nerve daisy 2/0
HYSC3 Hymenoxys scaposa (DC.) Parker   1/0
TEST5 Tetraneuris stenophylla Rydb.   0/1
TETO Tetraneuris torreyana (Nutt.) Greene Torrey's four-nerve daisy 4/0
TEPA3 Tetrapanax papyrifer (Hook.) K. Koch ricepaper plant 2/0
TEPE70 Tetraphis pellucida Hedw. tetraphis moss 5/0
TEAN5 Tetraplodon angustatus (Hedw.) Bruch & Schimp. in B.S.G. toothedleaf nitrogen moss 2/0
TEAN2 Tetrazygia angustifolia (Sw.) DC. stinkingfish 1/0
TEBI Tetrazygia bicolor (P. Mill.) Cogn. Florida clover ash 2/0
TEBI2 Tetrazygia biflora (Cogn.) Urban Puerto Rico clover ash 1/0
TECR Tetrazygia crotonifolia (Desr.) DC. hillside clover ash 2/0
TEEL Tetrazygia elaeagnoides (Sw.) DC. krekre 3/0
TEBR3 Tetrodontium brownianum (Dicks.) Schwaegr. Brown's tetrodontium moss 6/0
TERE5 Tetrodontium repandum (Funck in Sturm) Schwaegr. tetrodontium moss 4/0
TEUCR Teucrium L. germander 1/0
TEBO Teucrium botrys L. cutleaf germander 0/1
TECA3 Teucrium canadense L. Canada germander 6/2
TECAC Teucrium canadense L. var. canadense Canada germander    
TELI5 Teucrium littorale Bickn.   0/1
TECAO Teucrium canadense L. var. occidentale (Gray) McClintock & Epling western germander    
TEOC Teucrium occidentale Gray   0/1
TECU Teucrium cubense Jacq. small coastal germander 1/0
TELA Teucrium laciniatum Torr. lacy germander 2/1
TESC Teucrium scorodonia L. woodland germander 0/1
TESA Texosporium santi-jacobi (Tuck.) Nadv. St. Jacob texosporium lichen 2/0
THTE6 Thalassia testudinum Banks & Soland. ex Koenig turtlegrass 1/0
THDE Thalia dealbata Fraser ex Roscoe powdery alligator-flag 1/1
THGE2 Thalia geniculata L. bent alligator-flag 2/0
THAL Thalictrum alpinum L. alpine meadow-rue 2/1
THAQ Thalictrum aquilegifolium L. columbine meadow-rue 3/0
THCL Thalictrum clavatum DC. mountain meadow-rue 2/1
THCO5 Thalictrum cooleyi Ahles Cooley's meadow-rue 1/0
THCO2 Thalictrum coriaceum (Britt.) Small maid of the mist 0/1
THCA6 Thalictrum caulophylloides Small   0/1
THDA Thalictrum dasycarpum Fisch. & Avé-Lall. purple meadow-rue 0/1
THDI Thalictrum dioicum L. early meadow-rue 2/1
THFE Thalictrum fendleri Engelm. ex Gray Fendler's meadow-rue 17/0
THFEP2 Thalictrum fendleri Engelm. ex Gray var. polycarpum Torr. Fendler's meadow-rue    
THPO Thalictrum polycarpum (Torr.) S. Wats.   4/0
THOC Thalictrum occidentale A. Gray western meadow-rue 1/0
THPU2 Thalictrum pubescens Pursh king of the meadow    
THPO8 Thalictrum polygamum Muhl. ex Spreng.   4/1
THRE Thalictrum revolutum DC. waxyleaf meadow-rue 3/1
THTH2 Thalictrum thalictroides (L.) Eames & Boivin rue anemone 10/0
ANTH5 Anemonella thalictroides (L.) Spach   2/0
SYTH Syndesmon thalictroides (L.) Hoffmgg. ex Britt.   0/1
THVE Thalictrum venulosum Trel. veiny meadow-rue 0/1
THNE4 Thamnobryum neckeroides (Hook.) Lawt. Necker's thamnobryum moss 5/0
THMO Thamnosma montana Torr. & Frém. turpentinebroom 3/0
THTE2 Thamnosma texana (Gray) Torr. rue of the mountains 3/0
THBA Thaspium barbinode (Michx.) Nutt. hairyjoint meadowparsnip 1/1
THPI Thaspium pinnatifidum (Buckl.) Gray cutleaf meadowparsnip 1/1
THTR Thaspium trifoliatum (L.) Gray purple meadowparsnip 1/1
THELE Thelesperma Less. greenthread 1/0
THBU Thelesperma burridgeanum (Regel, Korn. & Rach.) Blake Burridge's greenthread 1/0
THFIF Thelesperma filifolium (Hook.) Gray var. filifolium stiff greenthread 1/0
THTR2 Thelesperma trifidum (Poir.) Britt.   1/1
THFII Thelesperma filifolium (Hook.) Gray var. intermedium (Rydb.) Shinners stiff greenthread    
THIN5 Thelesperma intermedium Rydb.   0/1
THLO Thelesperma longipes Gray longstalk greenthread 2/0
THME Thelesperma megapotamicum (Spreng.) Kuntze Hopi tea greenthread 10/0
THGR4 Thelesperma gracile (Torr.) Gray   0/1
THBI Thelocactus bicolor (Galeotti ex N.E. Pfeiffer) Britt. & Rose glory of Texas 2/0
THAU3 Thelypodiopsis aurea (Eastw.) Rydb. Durango tumblemustard 4/0
THIN Thelypodium integrifolium (Nutt.) Endl. ex Walp. entireleaved thelypody 4/1
THLA Thelypodium laciniatum (Hook.) Endl. ex Walp. cutleaf thelypody 3/0
THLA4 Thelypodium laxiflorum Al-Shehbaz droopflower thelypody 1/0
THST Thelypodium stenopetalum S. Wats. slenderpetal thelypody 1/0
THWR Thelypodium wrightii Gray Wright's thelypody 5/0
THKU Thelypteris kunthii (Desv.) Morton Kunth's maiden fern 1/0
THNO Thelypteris noveboracensis (L.) Nieuwl. New York fern 4/0
DRNO4 Dryopteris noveboracensis (L.) Gray   0/1
THTH Thelypteris thelypterioides (Michx.) Holub   1/0
THOV Thelypteris ovata R. St. John ovate marsh fern 1/0
THPA Thelypteris palustris Schott eastern marsh fern 0/1
THPAP Thelypteris palustris Schott var. pubescens (Lawson) Fern. eastern marsh fern    
DRTH4 Dryopteris thelypteris auct. non (L.) Sw. [misapplied]   0/1
THSI2 Thelypteris simulata (Davenport) Nieuwl. bog fern    
DRSI3 Dryopteris simulata Davenport   0/1
THEME Themeda Forsk. kangaroo grass 1/0
THAR2 Themeda arguens (L.) Hack. Christmas grass    
THFR4 Themeda frondosa (R. Br.) Merr., nom. inq.   1/0
THQU Themeda quadrivalvis (L.) Kuntze kangaroo grass 2/0
THVI2 Themeda villosa (Poir.) A. Camus silky kangaroo grass    
THGI Themeda gigantea auct. non (Cav.) Hack.   1/0
THCA Theobroma cacao L. cacao 9/0
THERM Thermopsis R. Br. goldenbanner 1/0
THDI4 Thermopsis divaricarpa A. Nels. spreadfruit goldenbanner 3/0
THPI5 Thermopsis pinetorum Greene   1/0
THFR3 Thermopsis fraxinifolia Nutt. ex M.A. Curtis ashleaf goldenbanner 1/0
THMA2 Thermopsis macrophylla Hook. & Arn. Santa Inez goldenbanner 3/0
THMO2 Thermopsis mollis (Michx.) M.A. Curtis ex Gray Allegheny Mountain goldenbanner 2/1
THMO6 Thermopsis montana Nutt. mountain goldenbanner 4/0
THRH Thermopsis rhombifolia (Nutt. ex Pursh) Nutt. ex Richards. prairie thermopsis 4/1
THVI Thermopsis villosa (Walt.) Fern. & Schub. Aaron's rod 2/0
THCA5 Thermopsis caroliniana M.A. Curtis   1/0
THPO3 Thespesia populnea (L.) Soland. ex Correa Portia tree 3/0
THPE3 Thevetia peruviana (Pers.) K. Schum. luckynut 6/0
THIN6 Thinopyrum intermedium (Host) Barkworth & D.R. Dewey intermediate wheatgrass    
AGIN2 Agropyron intermedium (Host) Beauv.   2/0
AGTR6 Agropyron trichophorum (Link) Richter   2/0
ELHI6 Elymus hispidus (Opiz) Melderis   2/0
ELIN7 Elytrigia intermedia (Host) Nevski   4/0
THJU3 Thinopyrum junceiforme (A.& D. Löve) A. Löve Russian wheatgrass    
AGJU Agropyron junceum (L.) Beauv. p.p.   2/0
THPO7 Thinopyrum ponticum (Podp.) Z.-W. Liu & R.-C. Wang tall wheatgrass 1/0
AGEL3 Agropyron elongatum (Host) P. Beauv.   1/0
THPY4 Thinopyrum pycnanthum (Godr.) Barkworth tick quackgrass    
AGLI81 Agropyron littorale auct. non (Host) Dur. [misapplied]   2/0
AGPU3 Agropyron pungens auct. non (Pers.) Roemer & J.A. Schultes [misapplied]   0/2
THDU Thladiantha dubia Bunge Manchu tubergourd 1/0
THLAS Thlaspi L. pennycress 1/0
THAR5 Thlaspi arvense L. field pennycress 2/1
THMO4 Thrinax morrisii H. Wendl. Key thatch palm 1/0
THMI8 Thrinax microcarpa Sarg.   2/0
THDE10 Thuidium delicatulum (Hedw.) Schimp. in B.S.G. delicate thuidium moss 6/0
THPH2 Thuidium philibertii Limpr. Philibert's thuidium moss 3/0
THRE7 Thuidium recognitum (Hedw.) Lindb. thuidium moss 3/0
THTA2 Thuidium tamariscinum (Hedw.) Schimp. in B.S.G. tamarisk thuidium moss 4/0
THUJA Thuja L. red cedar 0/1
THOC2 Thuja occidentalis L. arborvitae 14/2
THPL Thuja plicata Donn ex D. Don western red cedar 12/0
THAL3 Thunbergia alata Bojer ex Sims blackeyed Susan vine 4/0
THER Thunbergia erecta (Benth.) T. Anders. bush clockvine 4/0
THFR2 Thunbergia fragrans Roxb. whitelady 4/0
THGR3 Thunbergia grandiflora Roxb. Bengal trumpet 7/0
THAC Thymophylla acerosa (DC.) Strother pricklyleaf dogweed    
DYAC Dyssodia acerosa DC.   1/0
THAU4 Thymophylla aurea (Gray) Greene ex Britt. manyawn pricklyleaf 0/1
THPE4 Thymophylla pentachaeta (DC.) Small fiveneedle pricklyleaf 1/0
THSER Thymophylla setifolia Lag. var. radiata (Gray) Strother Texas pricklyleaf    
DYSER Dyssodia setifolia (Lag.) B.L. Robins. var. radiata (Gray) Strother   2/0
THTE7 Thymophylla tenuiloba (DC.) Small bristleleaf pricklyleaf 1/0
THPRA Thymus praecox Opiz ssp. arcticus (Dur.) Jalas creeping thyme 2/0
THSE Thymus serpyllum auct. non L. [misapplied]   0/1
THCU Thysanocarpus curvipes Hook. sand fringepod 5/0
THCUE Thysanocarpus curvipes Hook. var. elegans (Fisch. & C.A. Mey.) B.L. Robins.   1/0
TICO Tiarella cordifolia L. heartleaf foamflower 4/1
TITRT Tiarella trifoliata L. var. trifoliata threeleaf foamflower 1/0
TITRU Tiarella trifoliata L. var. unifoliata (Hook.) Kurtz oneleaf foamflower 2/0
TIBOU Tibouchina Aubl. glorytree 3/0
TIHE4 Tibouchina heteromalla Cogn. silverleafed princess flower 2/0
TILA7 Tibouchina laxa (Desr.) Cogn. 2/0
TISE2 Tibouchina semidecondra (Schrank & Mart. ex DC.) Cogn. purple glory tree 2/0
TIUR Tibouchina urvilleana (DC.) Cogn. princess-flower 5/0
TILA2 Tidestromia lanuginosa (Nutt.) Standl. woolly tidestromia 3/0
CLLA7 Cladothrix lanuginosa Nutt.   0/1
TIGR4 Tigridia grandiflora Diels peacock flower 3/0
TIPA6 Tigridia pavonia (L. f.) DC. [excluded] 1/0
TILIA Tilia L. basswood 1/0
TIAM Tilia americana L. American basswood 11/3
TIAMC Tilia americana L. var. caroliniana (Mill.) Castigl. Carolina basswood    
TIFL3 Tilia floridana Small   1/0
TIPU Tilia pubescens Ait.   0/1
TIAMH Tilia americana L. var. heterophylla (Vent.) Loud. American basswood    
TIHE Tilia heterophylla Vent.   5/1
TIMI5 Tilia michauxii Nutt.   0/1
TICO2 Tilia cordata P. Mill. littleleaf linden 8/0
TIPE Tilia petiolaris DC. pendent silver linden 1/0
TILLA2 Tillandsia L. airplant 1/0
TIBU Tillandsia bulbosa Hook. bulbous airplant 1/0
TIFA Tillandsia fasciculata Sw. giant airplant 2/0
TIRE Tillandsia recurvata (L.) L. small ballmoss 2/0
TITE Tillandsia tenuifolia L. narrowleaf airplant 1/0
TIUS Tillandsia usneoides (L.) L. Spanish moss 5/0
DEUS Dendropogon usneoides (L.) Raf.   0/1
TIUT Tillandsia utriculata L. spreading airplant 1/0
TIAU70 Timmia austriaca Hedw. Austria timmia moss 1/0
TIMEB Timmia megapolitana Hedw. var. bavarica (Hessl.) Brid. Bavarian timmia moss    
TIBA4 Timmia bavarica Hessl.   6/0
TIDI Tipularia discolor (Pursh) Nutt. crippled cranefly 8/0
TIUN2 Tipularia unifolia B.S.P.   0/1
TIGR Tiquilia greggii (Torr. & Gray) A. Richards. plumed crinklemat    
COGR Coldenia greggii (Torr. & Gray) Gray   2/0
TIHI Tiquilia hispidissima (Torr. & Gray) A. Richards. hairy crinklemat 2/0
COHI Coldenia hispidissima (Torr. & Gray) Gray   1/0
TILA6 Tiquilia latior (I.M. Johnston) A. Richards. matted crinklemat 5/0
TINU2 Tiquilia nuttallii (Hook.) A. Richards. Nuttall's crinklemat 3/0
TIPL2 Tiquilia plicata (Torr.) A. Richards. fanleaf crinklemat 3/0
COPL Coldenia plicata (Torr.) Coville   1/0
TIDI2 Tithonia diversifolia (Hemsl.) Gray tree marigold 2/0
TIRO Tithonia rotundifolia (P. Mill.) Blake clavel de muerto 4/0
TOFIE Tofieldia Huds. tofieldia 1/0
TOPU Tofieldia pusilla (Michx.) Pers. Scotch false asphodel    
TOPA4 Tofieldia palustris auct. non Huds. [misapplied]   0/1
TOME Tolmiea menziesii (Pursh) Torr. & A. Gray youth on age 2/0
TONI70 Tomentypnum nitens (Hedw.) Loeske tomentypnum moss 2/0
TOPY Tonestus pygmaeus (Torr. & A. Gray) A. Nelson pygmy goldenweed 2/0
TONIN Toninia A. Massal. bruised lichen 1/0
TOCI Toona ciliata Roemer Australian redcedar 1/0
TOCIA Toona ciliata Roemer ssp. ciliata var. australis (F. Muell.) Bahadur Australian redcedar    
TOAU2 Toona australis (F. Muell.) Harms   1/1
TOAR Torilis arvensis (Huds.) Link spreading hedgeparsley 1/0
TOJA Torilis japonica (Houtt.) DC. erect hedgeparsley 0/1
TONO Torilis nodosa (L.) Gaertn. knotted hedgeparsley 0/1
TORRE Torreya Arn. torreya 1/0
TOCA Torreya californica Torr. California nutmeg 8/1
TOTA Torreya taxifolia Arn. Florida nutmeg 5/0
TOER Torreyochloa erecta (A.S. Hitchc.) Church spiked false mannagrass    
GLER2 Glyceria erecta A.S. Hitchc.   0/1
TOPAF Torreyochloa pallida (Torr.) Church var. fernaldii (A.S. Hitchc.) Dore ex Koyama & Kawano Fernald's false mannagrass    
GLFE2 Glyceria fernaldii (A.S. Hitchc.) St. John   0/1
TOPAP Torreyochloa pallida (Torr.) Church var. pallida pale false mannagrass    
GLPA5 Glyceria pallida (Torr.) Trin.   0/1
PAPA27 Panicularia pallida (Torr.) Kuntze   0/1
TOPAP3 Torreyochloa pallida (Torr.) Church var. pauciflora (J. Presl) J.I. Davis pale false mannagrass 2/0
GLOT Glyceria otisii A.S. Hitchc.   0/1
GLPA6 Glyceria pauciflora J. Presl   0/1
PUPA3 Puccinellia pauciflora (J. Presl) Munz   1/0
TOFL4 Tortella flavovirens (Bruch in F. Muell.) Broth. tortella moss 8/0
TOFR70 Tortella fragilis (Hook. & Wils. in Drumm.) Limpr. fragile tortella moss 3/0
TOIN4 Tortella inclinata (Hedw. f.) Limpr. tortella moss 6/0
TOTO70 Tortella tortuosa (Hedw.) Limpr. tortured tortella moss 7/0
TOCA10 Tortula caninervis (Mitt.) Broth. tortula moss 2/0
TOIN5 Tortula inermis (Brid.) Mont. tortula moss 3/0
TOLA5 Tortula laevipila (Brid.) Schwaegr. tortula moss 2/0
TOLA4 Tortula latifolia Bruch ex Hartm. wideleaf tortula moss 5/0
TOMU Tortula muralis Hedw. tortula moss 5/0
TONO2 Tortula norvegica (Web.) Wahlenb. ex Lindb. Norwegian tortula moss 3/0
TOPA7 Tortula pagorum (Milde) De Not. tortula moss 4/0
TOPA8 Tortula papillosa Wils. in Spruce papillose tortula moss 4/0
TORU70 Tortula ruralis (Hedw.) Gaertn. et al. tortula moss 2/0
TOIN7 Tortula intermedia (Brid.) De Not.   5/0
TORU2 Tortula ruraliformis (Besch.) Ingh.   4/0
TOSU2 Tortula subulata Hedw. tortula moss 3/0
TOVI3 Tortula virescens (De Not.) De Not. tortula moss 4/0
TOAR2 Tournefortia argentea L. f. velvetleaf soldierbush 3/0
TOHI Tournefortia hirsutissima L. chiggery grapes 2/0
TOMA Tournefortia maculata Jacq. bejuco de masa 1/0
TOSC3 Tournefortia scabra Lam. West Indian soldierbush 2/0
TOVO Tournefortia volubilis L. twining soldierbush 3/0
TOWNS Townsendia Hook. Townsend daisy 1/0
TOALA Townsendia alpigena Piper var. alpigena Wyoming Townsend daisy    
TOMO Townsendia montana M.E. Jones   1/0
TOALM Townsendia alpigena Piper var. minima (Eastw.) Dorn Wyoming Townsend daisy    
TOMI2 Townsendia minima Eastw.   1/0
TOAN Townsendia annua Beaman annual Townsend daisy 9/0
TOAP Townsendia aprica Welsh & Reveal Last Chance Townsend daisy 3/0
TOCO2 Townsendia condensata Parry ex Gray cushion Townsend daisy 2/0
TOEX2 Townsendia exscapa (Richards.) Porter stemless Townsend daisy 2/1
TOFL5 Townsendia florifer (Hook.) Gray showy Townsend daisy    
TOFL2 Townsendia florifera (Hook.) Gray [orthographic error]   4/0
TOGL4 Townsendia glabella Gray Gray's Townsend daisy 3/0
TOGR Townsendia grandiflora Nutt. largeflower Townsend daisy 0/1
TOIN Townsendia incana Nutt. hoary Townsend daisy 7/0
TOJOT Townsendia jonesii (Beaman) Reveal var. tumulosa Reveal Jones' Townsend daisy 1/0
TOLE Townsendia leptotes (Gray) Osterhout common Townsend daisy 1/0
TOME2 Townsendia mensana M.E. Jones table Townsend daisy 1/0
TONU Townsendia nuttallii Dorn Nuttall's Townsend daisy 1/0
TORO Townsendia rothrockii A. Gray ex Rothr. Rothrock's Townsend daisy 1/0
TOSC Townsendia scapigera D.C. Eat. tufted Townsend daisy 4/0
TOSM Townsendia smithii L. Shultz & A. Holmgren Black Rock Townsend daisy 2/0
TODI Toxicodendron diversilobum (Torr. & Gray) Greene Pacific poison oak 8/0
TOPU2 Toxicodendron pubescens P. Mill. Atlantic poison oak 6/1
TOQU Toxicodendron quercifolium (Michx.) Greene   1/0
TOTO2 Toxicodendron toxicodendron (L.) Britt.   0/1
TORA2 Toxicodendron radicans (L.) Kuntze eastern poison ivy 11/2
TORAR Toxicodendron radicans (L.) Kuntze ssp. radicans eastern poison ivy    
RHRA6 Rhus radicans L.   2/0
TORY Toxicodendron rydbergii (Small ex Rydb.) Greene western poison ivy 2/0
TOVE Toxicodendron vernix (L.) Kuntze poison sumac 6/2
RHVE2 Rhus vernix L.   1/0
TRDI Trachelospermum difforme (Walt.) Gray climbing dogbane 3/2
TRFO3 Trachycarpus fortunei (Hook.) H. Wendl. Chinese windmill palm 4/0
TRSP12 Trachypogon spicatus (L. f.) Kuntze spiked crinkleawn    
TRMO Trachypogon montufari (Kunth) Nees   2/0
TRSE Trachypogon secundus (J. Presl) Scribn.   0/1
TRADE Tradescantia L. spiderwort 4/0
TRBR Tradescantia bracteata Small ex Britt. longbract spiderwort 1/1
TRHI Tradescantia hirsutiflora Bush hairyflower spiderwort 3/0
TROC Tradescantia occidentalis (Britt.) Smyth prairie spiderwort 9/1
TROCO Tradescantia occidentalis (Britt.) Smyth var. occidentalis prairie spiderwort 1/0
TROCS Tradescantia occidentalis (Britt.) Smyth var. scopulorum (Rose) E.S. Anderson & Woods. prairie spiderwort 5/0
TROH Tradescantia ohiensis Raf. bluejacket 4/0
TRRE7 Tradescantia reflexa Raf.   0/1
TRPA10 Tradescantia pallida (Rose) D.R. Hunt purple queen 2/0
TRPE9 Tradescantia pedicellata Celarier Edwards Plateau spiderwort 1/0
TRPI Tradescantia pinetorum Greene pinewoods spiderwort 2/0
TRSP8 Tradescantia spathacea Sw. boatlily 1/0
TRSU Tradescantia subacaulis Bush stemless spiderwort 2/0
TRSU2 Tradescantia subaspera Ker-Gawl. zigzag spiderwort 3/0
TRSUM Tradescantia subaspera Ker-Gawl. var. montana (Shuttlw. ex Britt.) E.S. Anderson & Woods. zigzag spiderwort    
TRMO13 Tradescantia montana Shuttlw. ex Britt.   0/1
TRSUS Tradescantia subaspera Ker-Gawl. var. subaspera zigzag spiderwort    
TRPI8 Tradescantia pilosa Lehm.   0/1
TRVI Tradescantia virginiana L. Virginia spiderwort 10/2
TRBR8 Tradescantia brevicaulis Raf.   0/1
TRWR Tradescantia wrightii Rose & Bush Wright's spiderwort 1/0
TRZE Tradescantia zebrina hort. ex Bosse inchplant 1/0
TRBE4 Tragia betonicifolia Nutt. betonyleaf noseburn 1/0
TRCO Tragia cordata Michx. heartleaf noseburn    
TRMA10 Tragia macrocarpa Willd.   0/1
TRNE Tragia nepetifolia Cav. catnip noseburn 0/1
TRRA5 Tragia ramosa Torr. branched noseburn 0/1
TRSM Tragia smallii Shinners Small's noseburn 1/0
TRUR Tragia urens L. wavyleaf noseburn 0/1
TRUR2 Tragia urticifolia Michx. nettleleaf noseburn 1/0
TRVO Tragia volubilis L. fireman 1/0
TRDU Tragopogon dubius Scop. yellow salsify 11/0
TRLA30 Tragopogon lamottei Rouy Jack-go-to-bed-at-noon    
TRPR Tragopogon pratensis L.   6/1
TRPO Tragopogon porrifolius L. salsify 3/1
TRBE Tragus berteronianus J.A. Schultes spiked burr grass 1/1
TRRA Tragus racemosus (L.) All. stalked burr grass 1/1
NARA Nazia racemosa (L.) Kuntze   0/1
TRBI5 Trapa bicornis Osbeck horn nut 1/0
TRNA Trapa natans L. water chestnut 1/1
TRCA Trautvetteria caroliniensis (Walt.) Vail Carolina bugbane 4/1
TRMI2 Trema micranthum (L.) Blume Jamaican nettletree 2/0
TRAM16 Trematodon ambiguus (Hedw.) Hornsch. ambiguous trematodon moss 2/0
TRLO7 Trematodon longicollis Michx. trematodon moss 2/0
TRVI2 Triadenum virginicum (L.) Raf. Virginia marsh St. Johnswort 1/2
HYVI4 Hypericum virginicum L.   1/0
TRWA Triadenum walteri (J.G. Gmel.) Gleason greater marsh St. Johnswort 1/0
TRPE12 Triadenum petiolatum (Walt.) Britt.   0/1
TRSE6 Triadica sebifera (L.) Small Chinese tallow 7/0
SASE5 Sapium sebiferum (L.) Roxb.   5/1
TRGL5 Triantha glutinosa (Michx.) Baker sticky tofieldia 0/1
TOGL2 Tofieldia glutinosa (Michx.) Pers.   1/0
TROCB Triantha occidentalis (S. Wats.) Gates ssp. brevistyla (C.L. Hitchc.) Packer Priest Lake tofieldia 1/0
TROCO2 Triantha occidentalis (S. Wats.) Gates ssp. occidentalis western false asphodel    
TOGLO2 Tofieldia glutinosa (Michx.) Pers. ssp. occidentalis (S. Wats.) C.L. Hitchc.   1/0
TOGLO Tofieldia glutinosa (Michx.) Pers. var. occidentalis (S. Wats.) C.L. Hitchc.   1/0
TRRA6 Triantha racemosa (Walt.) Small coastal false asphodel 0/1
TORA Tofieldia racemosa (Walt.) B.S.P.   3/0
TRCI2 Tribulus cistoides L. Jamaican feverplant 3/0
TRTE Tribulus terrestris L. puncturevine 6/1
TRWA2 Tricardia watsonii Torr. ex S. Wats. threehearts 1/0
TRHI3 Trichilia hirta L. broomstick 2/0
TRPA2 Trichilia pallida Sw. gaita 1/0
TRRO9 Trichilia roka (Forsskal) Chiov. trichilia    
TREM Trichilia emetica Vahl   2/0
TRTR8 Trichilia triacantha Urban bariaco 1/0
TRCR9 Trichloris crinita (Lag.) Parodi false Rhodes grass 1/1
CHCR Chloris crinita Lag.   2/0
TRME5 Trichloris mendocina (Phil.) Kurtz   1/0
TRPL3 Trichloris pluriflora Fourn. multiflower false Rhodes grass 1/1
TRICH26 Trichocereus (A. Berger) Riccob. trichocereus 9/0
TRAU12 Trichocereus auricolor Backeb. 1/0
TRCA31 Trichocereus callianthus F. Ritter 1/0
TRGR17 Trichocereus grandiflorus Backeb. 4/0
TRPE24 Trichocereus peruvianus Britton & Rose 1/0
TRUY Trichocereus uyupampensis Backeb. 1/0
TRTO5 Trichocolea tomentella (Ehrh.) Dumort. 4/0
TRBO Trichomanes boschianum Sturm Appalachian bristle fern 0/1
TREL Trichoneura elegans Swallen Silveus' grass 0/1
TRAL7 Trichophorum alpinum (L.) Pers. alpine bulrush    
ERAL10 Eriophorum alpinum L.   0/1
TRCE3 Trichophorum cespitosum (L.) Hartm. tufted bulrush    
SCCE2 Scirpus cespitosus L. [orthographic variant]   1/1
TRCA30 Trichophorum caespitosum (L.) Hartman   1/0
TRCL4 Trichophorum clintonii (Gray) S.G. Sm. Clinton's bulrush    
SCCL2 Scirpus clintonii Gray   0/1
TRPL6 Trichophorum planifolium (Spreng.) Palla bashful bulrush    
SCPL2 Scirpus planifolius Muhl., non Grimm   0/1
TRAR Trichostema arizonicum Gray Arizona bluecurls 2/0
TRBR5 Trichostema brachiatum L. fluxweed    
ISBR3 Isanthus brachiatus (L.) B.S.P.   1/1
TRDI2 Trichostema dichotomum L. forked bluecurls 5/1
TRLA3 Trichostema lanatum Benth. woolly bluecurls 4/0
TRPA3 Trichostema parishii Vasey Parish's bluecurls 3/0
TRSE5 Trichostema setaceum Houtt. narrowleaf bluecurls 1/0
TRLI5 Trichostema lineare Walt.   0/1
TRSI Trichostema simulatum Jepson Siskiyou bluecurls 1/0
TROC2 Trichostigma octandrum (L.) H. Walt. hoopvine 2/0
TRCR18 Trichostomum crispulum Bruch in F. Muell. trichostomum moss 3/0
TRAL2 Tridens albescens (Vasey) Woot. & Standl. white tridens 0/1
RHAL7 Rhombolytrum albescens (Vasey) Nash   0/1
TRAM Tridens ambiguus (Ell.) J.A. Schultes pine barren fluffgrass 0/1
TRBU Tridens buckleyanus (L.H. Dewey) Nash Buckley's fluffgrass 0/1
TRCA4 Tridens carolinianus (Steud.) Henr. Carolina fluffgrass 0/1
TRCO2 Tridens congestus (L.H. Dewey) Nash pink fluffgrass 0/1
TRER Tridens eragrostoides (Vasey & Scribn.) Nash lovegrass tridens 0/1
TRFL2 Tridens flavus (L.) A.S. Hitchc. purpletop tridens 7/2
TRFLC Tridens flavus (L.) A.S. Hitchc. var. chapmanii (Small) Shinners Chapman's tridens    
TRCH4 Tridens chapmanii (Small) Chase   0/1
TRFLF Tridens flavus (L.) Hitchc. var. flavus purpletop tridens    
TRFL7 Triodia flava (L.) Smyth   1/0
TRMU Tridens muticus (Torr.) Nash slim tridens 2/1
TRMUE Tridens muticus (Torr.) Nash var. elongatus (Buckl.) Shinners slim tridens    
TREL6 Tridens elongatus (Buckl.) Nash   0/2
TROK Tridens ×oklahomensis (Featherly) Featherly (pro sp.) [not hybrid]   0/1
TRST2 Tridens strictus (Nutt.) Nash longspike tridens 2/3
TRTE2 Tridens texanus (S. Wats.) Nash Texas fluffgrass 0/1
TRBO2 Trientalis borealis Raf. starflower 4/0
TRBOB Trientalis borealis Raf. ssp. borealis starflower    
TRAM11 Trientalis americana Pursh   0/1
TRBOL Trientalis borealis Raf. ssp. latifolia (Hook.) Hultén broadleaf starflower 3/0
TRLA6 Trientalis latifolia Hook.   1/0
TREUA Trientalis europaea L. ssp. arctica (Fisch. ex Hook.) Hultén arctic starflower 1/0
TRIFO Trifolium L. clover 1/0
TRAF3 Trifolium africanum Ser. African clover 1/0
TRAL6 Trifolium alexandrinum L. Egyptian clover 1/0
TRAM2 Trifolium amabile Kunth Aztec clover 1/0
TRAM15 Trifolium ambiguum M. Bieb. Kura clover 1/0
TRAN Trifolium andersonii Gray fiveleaf clover 6/0
TRANA2 Trifolium andersonii Gray ssp. andersonii fiveleaf clover 2/0
TRANB Trifolium andersonii Gray ssp. beatleyae J. Gillett Beatley's clover 3/0
TRANM Trifolium andersonii Gray ssp. monoense (Greene) J. Gillett Mono clover 1/0
TRAN6 Trifolium angustifolium L. narrowleaf crimson clover 1/0
TRAR4 Trifolium arvense L. rabbitfoot clover 4/1
TRAU2 Trifolium aureum Pollich golden clover    
TRAG Trifolium agrarium L. p.p.   1/1
TRBE2 Trifolium beckwithii Brewer ex S. Wats. Beckwith's clover 5/1
TRBE3 Trifolium bejariense Moric. Bejar clover 1/0
TRBR2 Trifolium brandegeei S. Wats. Brandegee's clover 2/0
TRCA5 Trifolium campestre Schreb. field clover 7/0
TRPR7 Trifolium procumbens L. 1755, non 1753   1/1
TRCA6 Trifolium carolinianum Michx. Carolina clover 1/1
TRCE9 Trifolium cernuum Brot. nodding clover 1/0
TRCI Trifolium ciliolatum Benth. foothill clover 1/0
TRCY Trifolium cyathiferum Lindl. cup clover 1/0
TRDA2 Trifolium dasyphyllum Torr. & A. Gray alpine clover 2/0
TRDE Trifolium depauperatum Desv. cowbag clover 3/0
TRDES Trifolium depauperatum Desv. var. stenophyllum (Nutt.) McDermott balloon sack clover    
TRST9 Trifolium stenophyllum Nutt.   1/0
TRDU2 Trifolium dubium Sibthorp suckling clover 1/1
TREC2 Trifolium echinatum Bieb. prickly clover 1/0
TRFR2 Trifolium fragiferum L. strawberry clover 1/0
TRGL4 Trifolium glomeratum L. clustered clover 1/0
TRGRP Trifolium gracilentum Torr. & Gray var. palmeri (S. Wats.) McDermott Palmer's clover    
TRPA4 Trifolium palmeri S. Wats.   1/0
TRGY Trifolium gymnocarpon Nutt. hollyleaf clover 5/0
TRHI4 Trifolium hirtum All. rose clover 1/0
TRHY Trifolium hybridum L. alsike clover 2/1
TRIN3 Trifolium incarnatum L. crimson clover 8/1
TRKI Trifolium kingii S. Wats. King's clover 2/0
TRLA18 Trifolium lappaceum L. burdock clover 1/0
TRLE2 Trifolium lemmonii S. Wats. Lemmon's clover 2/0
TRLO Trifolium longipes Nutt. longstalk clover 4/1
TRLOL3 Trifolium longipes Nutt. ssp. longipes longstalk clover 1/0
TRLOS2 Trifolium longipes Nutt. ssp. shastense (House) J. Gillett longstalk clover 4/0
TRLU Trifolium lupinaster L. lupine clover 1/0
TRMA2 Trifolium macraei Hook. & Arn. Chilean clover 1/0
TRMA3 Trifolium macrocephalum (Pursh) Poir. largehead clover 6/1
TRME Trifolium medium L. zigzag clover 1/1
TRMI4 Trifolium microcephalum Pursh smallhead clover 1/0
TRMI5 Trifolium microdon Hook. & Arn. thimble clover 1/0
TRMO2 Trifolium monanthum Gray mountain carpet clover 2/0
TRMOM Trifolium monanthum Gray ssp. monanthum mountain carpet clover 2/0
TRNA2 Trifolium nanum Torr. dwarf clover 4/0
TRNI3 Trifolium nigrescens Viviani small white clover 1/0
TROB2 Trifolium obtusiflorum Hook. f. clammy clover 1/0
TROL Trifolium oliganthum Steud. fewflower clover    
TRPA15 Trifolium pauciflorum Nutt.   1/0
TRPA5 Trifolium parryi A. Gray Parry's clover 1/0
TRPO6 Trifolium polymorphum Poir. peanut clover 1/0
TRAM10 Trifolium amphianthum Torr. & Gray   1/0
TRPR2 Trifolium pratense L. red clover 7/2
TRPU15 Trifolium purpureum Lois. purple clover 1/0
TRRE2 Trifolium reflexum L. buffalo clover 1/1
TRRE3 Trifolium repens L. white clover 6/1
TRRE4 Trifolium resupinatum L. reversed clover 1/0
TRRU7 Trifolium rueppellianum Fresen. Rueppell's clover 1/0
TRSC7 Trifolium scabrum L. rough clover 1/0
TRSE7 Trifolium semipilosum Fresen. Kenya clover 1/0
TRSP82 Trifolium spumosum L. Mediterranean clover 1/0
TRSQ2 Trifolium squarrosum L. 1/0
TRST4 Trifolium stoloniferum Muhl. ex Eat. running buffalo clover 0/1
TRST5 Trifolium striatum L. knotted clover 1/0
TRSU3 Trifolium subterraneum L. subterranean clover 1/0
TRTO4 Trifolium tomentosum L. woolly clover 1/0
TRVA Trifolium variegatum Nutt. whitetip clover 3/0
TRVE Trifolium vesiculosum Savi arrowleaf clover 1/0
TRVI3 Trifolium virginicum Small ex Small & Vail Kates Mountain clover 0/1
TRWI3 Trifolium willdenovii Spreng. tomcat clover    
TRTR2 Trifolium tridentatum Lindl.   2/0
TRWI Trifolium willdenowii Spreng.   1/0
TRWO Trifolium wormskioldii Lehm. cows clover 3/1
TRFE2 Trifolium fendleri Greene   1/0
TRCO19 Triglochin concinna Burtt-Davy slender arrowgrass    
TRCO4 Triglochin concinnum Burtt-Davy [orthographic variant]   2/0
TRMA20 Triglochin maritima L. seaside arrowgrass    
TRMA4 Triglochin maritimum L. [orthographic variant]   7/1
TRPA28 Triglochin palustris L. marsh arrowgrass    
TRPA6 Triglochin palustre L. [orthographic variant]   0/1
TRST16 Triglochin striata Ruiz & Pavón three-rib arrowgrass    
TRST6 Triglochin striatum Ruiz & Pavón [orthographic variant]   0/1
TRCA14 Trigonella caerulea (L.) Ser. blue fenugreek 1/0
TRCO7 Trigonella corniculata (L.) L. cultivated fenugreek 1/0
TRPR8 Trigonella procumbens (Bess.) Reichenb. trailing fenugreek 1/0
TRILL Trillium L. trillium 3/0
TRCA11 Trillium catesbaei Ell. bashful wakerobin 6/0
TRCE Trillium cernuum L. whip-poor-will flower 4/1
TRCH2 Trillium chloropetalum (Torr.) T.J. Howell giant wakerobin 3/0
TRCHC Trillium chloropetalum (Torr.) T.J. Howell var. chloropetalum giant wakerobin    
TRSEC Trillium sessile L. var. chloropetalum Torr.   2/0
TRCHG Trillium chloropetalum (Torr.) T.J. Howell var. giganteum (Hook. & Arn.) Munz giant wakerobin 2/0
TRCU Trillium cuneatum Raf. little sweet Betsy 3/0
TRDE3 Trillium decumbens Harbison trailing wakerobin 2/0
TRDI5 Trillium discolor Wray ex Hook. mottled wakerobin 2/0
TRER3 Trillium erectum L. red trillium 4/1
TRERA Trillium erectum L. var. album Pursh   1/0
TRFL6 Trillium flexipes Raf. nodding wakerobin 5/0
TRDE6 Trillium declinatum auct. non (Gray) Gleason [misapplied]   0/1
TRGR4 Trillium grandiflorum (Michx.) Salisb. white trillium 8/1
TRLU3 Trillium luteum (Muhl.) Harbison yellow wakerobin 3/0
TRCUL Trillium cuneatum Raf. var. luteum (Muhl.) Ahles   1/0
TRVIL Trillium viride Beck var. luteum (Muhl.) Gleason   3/0
TRNI2 Trillium nivale Riddell snow trillium 1/1
TROV2 Trillium ovatum Pursh Pacific trillium 7/0
TROVO2 Trillium ovatum Pursh ssp. ovatum Pacific trillium 4/0
TRPE7 Trillium persistens Duncan persistent wakerobin 4/0
TRPU3 Trillium pusillum Michx. dwarf wakerobin 2/0
TRPUP2 Trillium pusillum Michx. var. pusillum dwarf wakerobin 2/0
TRRE5 Trillium recurvatum Beck bloody butcher 6/1
TRRI2 Trillium rivale S. Wats. brook wakerobin 1/0
TRSE2 Trillium sessile L. toadshade 6/1
TRSU7 Trillium sulcatum Patrick furrowed wakerobin 1/0
TRUN Trillium undulatum Willd. painted trillium 4/1
TRVA2 Trillium vaseyi Harbison sweet wakerobin 4/0
TRVI4 Trillium viride Beck wood wakerobin 1/1
TRBI2 Triodanis biflora (Ruiz & Pavón) Greene clasping Venus' looking-glass    
SPBI4 Specularia biflora (Ruiz & Pavón) Fisch. & C.A. Mey.   0/1
TRLE3 Triodanis leptocarpa (Nutt.) Nieuwl. slimpod Venus' looking-glass    
SPLE2 Specularia leptocarpa (Nutt.) Gray   0/1
TRPE4 Triodanis perfoliata (L.) Nieuwl. clasping Venus' looking-glass 8/0
SPPE5 Specularia perfoliata (L.) A. DC.   6/1
TRPEP Triodanis perfoliata (L.) Nieuwl. var. perfoliata (L.) Nieuwl. [superfluous autonym]   2/0
TRAN3 Triosteum angustifolium L. yellowfruit horse-gentian 0/1
TRAU4 Triosteum aurantiacum Bickn. orangefruit horse-gentian 2/1
TRPE5 Triosteum perfoliatum L. feverwort 0/1
TRTR7 Triphasia trifolia (Burm. f.) P. Wilson limeberry 1/0
TRTR3 Triphora trianthophora (Sw.) Rydb. threebirds 0/1
TRERE2 Triphysaria eriantha (Benth.) Chuang & Heckard ssp. eriantha johnny-tuck 5/0
ORER Orthocarpus erianthus Benth.   3/0
TRERR Triphysaria eriantha (Benth.) Chuang & Heckard ssp. rosea (Gray) Chuang & Heckard johnny-tuck 2/0
ORERG Orthocarpus erianthus Benth. var. gratiosus Jepson & Tracy   1/0
ORERR Orthocarpus erianthus Benth. var. roseus (Gray) Greene   2/0
TRFL14 Triphysaria floribunda (Benth.) Chuang & Heckard San Francisco owl's-clover    
ORFL Orthocarpus floribundus Benth.   3/0
TRVEF Triphysaria versicolor Fisch. & C.A. Mey. ssp. faucibarbatus (Gray) Chuang & Heckard yellowbeak owl's-clover    
ORFA2 Orthocarpus faucibarbatus Gray   2/0
TRAM7 Triplasis americana Beauv. perennial sandgrass 0/1
TRPU4 Triplasis purpurea (Walt.) Chapman purple sandgrass 0/2
TRMAM Tripleurospermum maritima (L.) W.D.J. Koch ssp. maritima false mayweed 2/0
TRMAP Tripleurospermum maritima (L.) W.D.J. Koch ssp. phaeocephala (Rupr.) Hamet-Ahti false mayweed    
MAGR13 Matricaria grandiflora (Hook.) Britt.   0/1
TRPE21 Tripleurospermum perforata (Merat) M. Lainz scentless false mayweed    
MAIN12 Matricaria inodora L.   0/1
TRSP Tripogon spicatus (Nees) Ekman American fiveminute grass 0/1
TRIPS Tripsacum L. gamagrass 1/0
TRDA3 Tripsacum dactyloides (L.) L. eastern gamagrass 7/3
TRFA2 Tripsacum fasciculatum Trin. ex Asch. Guatemalan gamagrass    
TRLA25 Tripsacum laxum Nash   2/0
TRFL4 Tripsacum floridanum Porter ex Vasey Florida gamagrass 0/1
TRLA11 Tripsacum lanceolatum Rupr. ex Fourn. Mexican gamagrass 0/1
TRLA24 Tripsacum latifolium Hitchc. wideleaf gamagrass 1/0
TRCA34 Tripterocalyx carneus (Greene) L.A. Gal. winged sandpuffs    
TRCA13 Tripterocalyx carnea (Greene) L.A. Gal. [orthographic variant]   2/0
TRCR5 Tripterocalyx crux-maltae (Kellogg) Standl. Lassen sandverbena 9/0
TRMI6 Tripterocalyx micranthus (Torr.) Hook. smallflower sandverbena 0/1
ABMI3 Abronia micrantha Torr.   1/0
TRCA21 Trisetum canescens Buckl. tall trisetum 0/1
TRCE2 Trisetum cernuum Trin.   0/1
TRFL5 Trisetum flavescens (L.) Beauv. yellow oatgrass 1/2
TRIN5 Trisetum interruptum Buckl. prairie false oat 0/1
TRME3 Trisetum melicoides (Michx.) Vasey ex Scribn. purple false oat 0/1
GRME2 Graphephorum melicoides (Michx.) Desv.   0/1
TROR3 Trisetum orthochaetum A.S. Hitchc. hybrid false oat 0/1
TRSP2 Trisetum spicatum (L.) Richter spike trisetum 3/2
TRMO5 Trisetum montanum Vasey   0/1
TRWO3 Trisetum wolfii Vasey Wolf's trisetum 0/1
TRUN6 Tristagma uniflorum (Lindl.) Traub springstar 1/0
BRUN3 Brodiaea uniflora (Lindl.) Engl.   1/0
IPUN Ipheion uniflorum (Graham) Raf.   2/0
TRLA29 Tristaniopsis laurina (Sm.) Peter G. Wilson & J.T. Waterh. water-gum 8/0
TRBR7 Triteleia bridgesii (S. Wats.) Greene Bridges' brodiaea 2/0
TRGR7 Triteleia grandiflora Lindl. largeflower triteleia 4/0
TRHEH Triteleia hendersonii Greene var. hendersonii Henderson's triteleia    
BRHE2 Brodiaea hendersonii (Greene) S. Wats.   3/0
TRHY3 Triteleia hyacinthina (Lindl.) Greene white brodiaea 11/0
BRHY2 Brodiaea hyacinthina (Lindl.) Baker   2/0
TRIX Triteleia ixioides (Ait. f.) Greene prettyface 1/0
TRIXA Triteleia ixioides (Ait. f.) Greene ssp. anilina (Greene) Lenz prettyface 1/0
TRIXC Triteleia ixioides (Ait. f.) Greene ssp. cookii (Hoover) Lenz Cook's triteleia 1/0
TRIXI2 Triteleia ixioides (Ait. f.) Greene ssp. ixioides golden brodiaea 1/0
BRLU2 Brodiaea lutea (Lindl.) Morton   1/0
TRIXU2 Triteleia ixioides (Ait. f.) Greene ssp. unifolia Lenz prettyface 2/0
TRLA16 Triteleia laxa Benth. Ithuriel's spear 9/0
BRLA9 Brodiaea laxa (Benth.) S. Wats.   2/0
TRLI8 Triteleia lilacinum Greene foothill triteleia 7/0
TRPE10 Triteleia peduncularis Lindl. long-ray brodiaea    
BRPE Brodiaea peduncularis (Lindl.) S. Wats.   1/0
TRITI Triticum L. wheat 4/0
TRAE Triticum aestivum L. common wheat 1/1
TRBOT Triticum boeoticum Boiss. ssp. thaoudar (Reuter ex Hausskn.) Schiem. wild einkorn    
TRTH3 Triticum thaoudar Reuter ex Hausskn.   1/0
TRCA24 Triticum carthlicum Nevski Persian wheat 1/0
TRDU3 Triticum durum Desf. durum wheat 1/0
TRSP3 Triticum spelta L. spelt 2/0
TRTI Triticum timopheevii (Zhuk.) Zhuk. Timopheev's wheat 2/0
TRTU3 Triticum turanicum Jakubz. Oriental wheat    
TROR10 Triticum orientale Percival   1/0
TRTU2 Triticum turgidum L. rivet wheat 2/0
TRDI3 Triticum dicoccum (Schrank) Schübl., orth. var.   1/0
TRZH Triticum zhukovskyi Menabde & Ericzjan Zhukovsky's wheat 1/0
TREX4 Tritomaria exsecta (Schrad.) Loeske 3/0
TREX3 Tritomaria exsectiformis (Breidl.) Loeske 3/0
TRQU Tritomaria quinquedentata (Huds.) H. Buch 4/0
TRRH Triumfetta rhomboidea Jacq. diamond burrbark 1/0
TRSE4 Triumfetta semitriloba Jacq. Sacramento burrbark 1/0
TRCA8 Trixis californica Kellogg American threefold 3/0
TRLA14 Trollius laxus Salisb. American globeflower 8/2
TRLAA2 Trollius laxus Salisb. ssp. albiflorus (Gray) A.& D. Löve & Kapoor American globeflower 2/0
TRAL8 Trollius albiflorus (Gray) Rydb.   9/0
TRMA7 Tropaeolum majus L. nasturtium 1/0
TSUGA Tsuga Carr. hemlock 2/0
TSCA Tsuga canadensis (L.) Carr. eastern hemlock 13/3
TSCA2 Tsuga caroliniana Engelm. Carolina hemlock 6/1
TSHE Tsuga heterophylla (Raf.) Sarg. western hemlock 17/0
TSME Tsuga mertensiana (Bong.) Carr. mountain hemlock 21/1
TUGR Tuctoria greenei (Vasey) J. Reeder awnless spiralgrass    
ORGR Orcuttia greenei Vasey   0/1
TULBA Tulbaghia L. wild garlic 1/0
TULIP Tulipa L. tulip 3/0
TUGR2 Tulipa greigii Regel 3/0
TUSY Tulipa sylvestris L. wild tulip 0/1
TUTA2 Tulipa tarda Stapf 1/0
TUTU Tulipa turkestanica (Regel) Regel 2/0
TUCO Turbina corymbosa (L.) Raf. Christmasvine 4/0
TUPA2 Turricula parryi (Gray) J.F. Macbr. common turricula 2/0
TUFA Tussilago farfara L. coltsfoot 3/1
TYPHA Typha L. cattail 1/0
TYAN Typha angustifolia L. narrowleaf cattail 4/1
TYDO Typha domingensis Pers. southern cattail 1/0
TYLA Typha latifolia L. broadleaf cattail 12/1
UGMO Ugni molinae Turcz. Chilean guava 2/0
ULEU Ulex europaeus L. common gorse 1/1
ULGA Ulex gallii Planch. 1/0
ULMUS Ulmus L. elm 1/0
ULAL Ulmus alata Michx. winged elm 8/2
ULAM Ulmus americana L. American elm 24/3
ULCR Ulmus crassifolia Nutt. cedar elm 4/1
ULDA Ulmus davidiana Planch. Japanese elm 4/0
ULPA Ulmus parvifolia Jacq. Chinese elm 6/0
ULPR Ulmus procera Salisb. English elm 1/0
ULPU Ulmus pumila L. Siberian elm 9/0
ULRU Ulmus rubra Muhl. slippery elm 7/1
ULFU Ulmus fulva Michx.   0/1
ULSE Ulmus serotina Sarg. September elm 4/1
ULTH Ulmus thomasii Sarg. rock elm 3/1
ULCO Ulota coarctata (P. Beauv.) Hammar ulota moss 8/0
ULCR2 Ulota crispa (Hedw.) Brid. ulota moss 3/0
ULBR Ulota bruchii Hornsch. in Brid.   3/0
ULHU Ulota hutchinsiae (Sm.) Hammar Hutchins' ulota moss 6/0
ULPH Ulota phyllantha Brid. ulota moss 7/0
UMBEL Umbellularia (Nees) Nutt. California laurel 2/0
UMCA Umbellularia californica (Hook. & Arn.) Nutt. California laurel 9/1
UMCAC Umbellularia californica (Hook. & Arn.) Nutt. var. californica California laurel 2/0
UNSP Ungnadia speciosa Endl. Mexican buckeye 7/0
UNPA Uniola paniculata L. seaoats 4/2
URLO Urena lobata L. Caesarweed 3/0
URAD Urochloa adspersa (Trin.) R. Webster Dominican signalgrass    
PAAD2 Panicum adspersum Trin.   0/1
URAR Urochloa arizonica (Scribn. & Merr.) O. Morrone & F. Zuloaga Arizona signalgrass    
PAAR9 Panicum arizonicum Scribn. & Merr.   0/1
URBR2 Urochloa brizantha (C. Hochstetter ex A. Rich.) R. Webster palisade grass    
BRBR Brachiaria brizantha (C. Hochstetter ex A. Rich.) Stapf   2/0
BRRU80 Brachiaria ruziziensis Germ. & Evrard   1/0
URCI Urochloa ciliatissima (Buckl.) R. Webster fringed signalgrass    
BRCI Brachiaria ciliatissima (Buckl.) Chase   1/1
URDE Urochloa decumbens (Stapf) R. Webster spreading liverseed grass    
BRDE7 Brachiaria decumbens Stapf   1/0
URDI5 Urochloa distachya (L.) T. Q. Nguyen tropical signalgrass    
BRSU Brachiaria subquadripara (Trin.) A.S. Hitchc.   2/0
URFU2 Urochloa fuscata (Sw.) B.F. Hansen & Wunderlin browntop signalgrass    
PAFA6 Panicum fasciculatum Sw.   0/1
URMA3 Urochloa maxima (Jacq.) R. Webster guineagrass 1/0
PAMA4 Panicum maximum Jacq.   0/1
URMO80 Urochloa mosambicensis (Hack.) Dandy African liverseed grass 1/0
URMU Urochloa mutica (Forsk.) T.Q. Nguyen para grass 1/0
PAMU13 Panicum muticum Forssk.   2/0
PAPU12 Panicum purpurascens Raddi   0/1
URPL Urochloa plantaginea (Link) R. Webster plantain signalgrass    
BRPL Brachiaria plantaginea (Link) A.S. Hitchc.   2/1
URPL2 Urochloa platyphylla (Munro ex Wright) R. Webster broadleaf signalgrass 0/1
BRPL2 Brachiaria platyphylla (Munro ex Wright) Nash   3/1
PAPL6 Paspalum platyphyllum Griseb., non Schult.   2/0
URRA Urochloa ramosa (L.) Nguyen dixie signalgrass 3/0
PARA3 Panicum ramosum L.   0/1
URRE2 Urochloa reptans (L.) Stapf sprawling signalgrass    
PARE9 Panicum reptans L.   0/1
URTE2 Urochloa texana (Buckl.) R. Webster Texas signalgrass 1/0
PATE14 Panicum texanum Buckl.   0/1
URCH3 Urtica chamaedryoides Pursh heartleaf nettle 0/1
URDI Urtica dioica L. stinging nettle 6/1
URDIG Urtica dioica L. ssp. gracilis (Ait.) Seland. California nettle 1/0
URGR3 Urtica gracilis Ait.   0/1
URDIH Urtica dioica L. ssp. holosericea (Nutt.) Thorne stinging nettle 2/0
URUR Urtica urens L. dwarf nettle 2/1
UTCO Utricularia cornuta Michx. horned bladderwort 1/0
STCO15 Stomoisia cornuta (Michx.) Raf.   0/1
UTFO Utricularia foliosa L. leafy bladderwort 4/0
UTGE Utricularia geminiscapa Benj. hiddenfruit bladderwort 1/1
UTGI Utricularia gibba L. humped bladderwort 2/1
UTBI Utricularia biflora Lam.   1/0
UTFI Utricularia fibrosa Walt.   2/1
UTPU3 Utricularia pumila Walt.   0/1
UTIN Utricularia inflata Walt. swollen bladderwort 8/1
UTIN2 Utricularia intermedia Hayne flatleaf bladderwort 1/1
UTJU Utricularia juncea Vahl southern bladderwort 1/0
STJU Stomoisia juncea (Vahl) Barnh.   0/1
STVI10 Stomoisia virgatula (Barnh.) Barnh.   0/1
UTMA Utricularia macrorhiza Le Conte common bladderwort 7/1
UTVU Utricularia vulgaris L. p.p.   2/0
UTMI Utricularia minor L. lesser bladderwort 3/2
UTPU Utricularia purpurea Walt. eastern purple bladderwort 1/0
VEPU4 Vesiculina purpurea (Walt.) Raf.   0/1
UTPU2 Utricularia pusilla Vahl tiny bladderwort 1/0
UTRA Utricularia radiata Small little floating bladderwort 0/1
UTRE Utricularia resupinata B.D. Greene ex Bigelow lavender bladderwort 1/0
LERE11 Lecticula resupinata (B.D. Greene ex Bigelow) Barnh.   0/1
UTSU Utricularia subulata L. zigzag bladderwort 5/0
SECL4 Setiscapella cleistogama (Gray) Barnh.   0/1
SESU9 Setiscapella subulata (L.) Barnh.   0/1
UVGR Uvularia grandiflora Sm. largeflower bellwort 7/1
UVPE Uvularia perfoliata L. perfoliate bellwort 7/1
UVPU2 Uvularia puberula Michx. mountain bellwort 0/1
UVSE Uvularia sessilifolia L. sessileleaf bellwort 7/1
VAHI2 Vaccaria hispanica (P. Mill.) Rauschert cow soapwort 1/0
VAVA2 Vaccaria vaccaria (L.) Britt.   0/1
VACCI Vaccinium L. blueberry 2/0
VAAN Vaccinium angustifolium Ait. lowbush blueberry 2/1
VANI Vaccinium nigrum (Wood) Britt.   0/1
VAAR Vaccinium arboreum Marsh. farkleberry 5/1
BAAR2 Batodendron arboreum (Marsh.) Nutt.   0/1
VACA6 Vaccinium caesariense Mackenzie New Jersey blueberry 0/1
VACE Vaccinium cespitosum Michx. dwarf bilberry 0/1
VACO Vaccinium corymbosum L. highbush blueberry 6/2
VACR Vaccinium crassifolium Andr. creeping blueberry 1/0
VADA Vaccinium darrowii Camp Darrow's blueberry 2/0
VADE Vaccinium deliciosum Piper Cascade bilberry 2/0
VAEL Vaccinium elliottii Chapman Elliott's blueberry 8/2
VAER Vaccinium erythrocarpum Michx. southern mountain cranberry 1/0
OXER Oxycoccus erythrocarpus (Michx.) Pers.   0/1
VAFU Vaccinium fuscatum Ait. black highbush blueberry 1/0
VAAT Vaccinium atrococcum (Gray) Heller   1/2
VAMA Vaccinium macrocarpon Ait. cranberry 2/0
OXMA6 Oxycoccus macrocarpus (Ait.) Pursh   0/1
VAME Vaccinium membranaceum Dougl. ex Torr. thinleaf huckleberry 4/1
VAMY3 Vaccinium myrsinites Lam. shiny blueberry 3/0
VAMY Vaccinium myrtilloides Michx. velvetleaf huckleberry    
VACA9 Vaccinium canadense Kalm ex A. Rich.   0/1
VAMY2 Vaccinium myrtillus L. whortleberry 3/0
VAOV Vaccinium ovalifolium Sm. oval-leaf blueberry 4/1
VAOV2 Vaccinium ovatum Pursh California huckleberry 3/0
VAOVS Vaccinium ovatum Pursh var. saporosum Jepson   1/0
VAOX Vaccinium oxycoccos L. small cranberry 2/0
OXOX Oxycoccus oxycoccos (L.) MacM.   0/1
VAPA4 Vaccinium pallidum Ait. Blue Ridge blueberry 0/1
VAVA Vaccinium vacillans Kalm ex Torr.   2/1
VAPA Vaccinium parvifolium Sm. red huckleberry 4/0
VARE Vaccinium reticulatum Sm. ohelo 'ai 4/0
VASC Vaccinium scoparium Leib. ex Coville grouse whortleberry 3/0
VAST Vaccinium stamineum L. deerberry 12/1
POST8 Polycodium stamineum (L.) Greene   0/1
VATE3 Vaccinium tenellum Ait. small black blueberry 0/1
VAUL Vaccinium uliginosum L. bog blueberry 1/1
VAVI2 Vaccinium virgatum Ait. smallflower blueberry 0/1
VAVI Vaccinium vitis-idaea L. lingonberry 4/1
VAAT2 Vahlodea atropurpurea (Wahlenb.) Fries ex Hartman mountain hairgrass 1/0
DEAT2 Deschampsia atropurpurea (Wahlenb.) Scheele   2/2
VALER Valeriana L. valerian 1/0
VAAC Valeriana acutiloba Rydb. sharpleaf valerian 1/0
VACA3 Valeriana capitata Pallas ex Link captiate valerian 2/0
VADIS Valeriana dioica L. var. sylvatica S. Wats. woods valerian    
VASE2 Valeriana septentrionalis Rydb.   0/1
VAED Valeriana edulis Nutt. ex Torr. & Gray tobacco root 3/1
VAOC2 Valeriana occidentalis Heller western valerian 4/1
VAOF Valeriana officinalis L. garden valerian 1/1
VAPA2 Valeriana pauciflora Michx. largeflower valerian 2/1
VASI Valeriana sitchensis Bong. Sitka valerian 4/0
VATE Valeriana texana Steyermark Guadalupe valerian 1/0
VAUL2 Valeriana uliginosa (Torr. & Gray) Rydb. mountain valerian 0/1
VACH Valerianella chenopodiifolia (Pursh) DC. goosefoot cornsalad 0/1
VAER2 Valerianella eriocarpa Desv. Italian cornsalad 1/0
VALO Valerianella locusta (L.) Lat. Lewiston cornsalad 1/1
VAOL2 Valerianella olitoria (L.) Pollich   1/0
VALO2 Valerianella longiflora (Torr. & Gray) Walp. longtube cornsalad 0/1
VARA Valerianella radiata (L.) Dufr. beaked cornsalad 2/1
VAWO Valerianella woodsiana (Torr. & Gray) Walp.   0/1
VAST2 Valerianella stenocarpa (Engelm. ex Gray) Krok narrowcell cornsalad 0/1
VAAM3 Vallisneria americana Michx. American eelgrass 4/0
VASP Vallisneria spiralis auct. non L. [misapplied]   0/1
VAHE Vancouveria hexandra (Hook.) Morr. & Dcne. white insideout flower 7/0
VAPL Vancouveria planipetala Calloni redwood insideout flower 2/0
VANDA Vanda W. Jones ex R. Br. vanda 7/0
VACO7 Vanda coeralea Griff. Ex Lindl. blue orchid 1/0
VATR3 Vanda tricolor Hook. 3/0
VANIL Vanilla P. Mill. vanilla 2/0
VADI2 Vanilla dilloniana Correll leafless vanilla 3/0
VAMU Vaseyochloa multinervosa (Vasey) A.S. Hitchc. Texasgrass 0/1
VACA5 Vauquelinia californica (Torr.) Sarg. Arizona rosewood 6/0
VACO4 Vauquelinia corymbosa Humb. & Bonpl. slimleaf rosewood 1/0
VERAT Veratrum L. false hellebore 1/0
VECA2 Veratrum californicum Dur. California false hellebore 16/0
VEFI2 Veratrum fimbriatum Gray fringed false hellebore 6/0
VEIN Veratrum insolitum Jepson Siskiyou false hellebore 4/0
VELA11 Veratrum latifolium (Desr.) Zomlefer slender bunchflower    
MEHY3 Melanthium hybridum Walt.   1/0
MELA4 Melanthium latifolium Desr.   0/1
VENI5 Veratrum nigrum L. false hellebore 1/0
VEPA3 Veratrum parviflorum Michx. Appalachian bunchflower 1/1
VETE4 Veratrum tenuipetalum Heller Colorado false hellebore 5/0
VEVI5 Veratrum virginicum (L.) Ait. f. Virginia bunchflower 3/0
MEVI2 Melanthium virginicum L.   4/2
VEVI Veratrum viride Ait. green false hellebore 7/1
VEWO3 Veratrum woodii J.W. Robbins ex Wood Wood's bunchflower 3/1
VEBL Verbascum blattaria L. moth mullein 8/1
VELY Verbascum lychnitis L. white mullein 2/1
VEPH Verbascum phlomoides L. orange mullein 0/1
VEPY2 Verbascum pyramidatum M. Bieb. 1/0
VETH Verbascum thapsus L. common mullein 17/1
VERBE Verbena L. vervain 3/0
VEBO Verbena bonariensis L. purpletop vervain 2/0
VEBR Verbena bracteata Lag. & Rodr. bigbract verbena 7/0
VEBR3 Verbena bracteosa Michx.   0/1
VEBR2 Verbena brasiliensis Vell. Brazilian vervain 6/1
VEHA Verbena halei Small Texas vervain 1/0
VEHA2 Verbena hastata L. swamp verbena 9/2
VELA Verbena lasiostachys Link western vervain    
VEPR3 Verbena prostrata Ait. f., non Savi   1/0
VERO Verbena robusta Greene   1/0
VEMA Verbena macdougalii Heller MacDougal verbena 8/0
VENE Verbena neomexicana (Gray) Small hillside vervain 2/0
VEOF Verbena officinalis L. herb of the cross 0/1
VEPE Verbena perennis Woot. pinleaf vervain 3/0
VERI2 Verbena rigida Spreng. tuberous vervain 4/0
VESI Verbena simplex Lehm. narrowleaf vervain 1/0
VEAN4 Verbena angustifolia Michx.   0/1
VEST Verbena stricta Vent. hoary verbena 5/1
VEUR Verbena urticifolia L. white vervain 2/1
VEXU Verbena xutha Lehm. Gulf vervain 1/0
VEAL Verbesina alternifolia (L.) Britt. ex Kearney wingstem 5/1
ACAL12 Actinomeris alternifolia (L.) DC.   4/0
RIAL Ridan alternifolia (L.) Britt.   0/1
VECH2 Verbesina chapmanii J.R. Coleman Chapman's crownbeard 1/0
VEEN Verbesina encelioides (Cav.) Benth. & Hook. f. ex Gray golden crownbeard 7/0
VEENE3 Verbesina encelioides (Cav.) Benth. & Hook. f. ex Gray ssp. encelioides golden crownbeard    
XIEN Ximenesia encelioides Cav.   7/1
VEENE2 Verbesina encelioides (Cav.) Benth. & Hook. f. ex Gray ssp. exauriculata (Robins. & Greenm.) J.R. Coleman golden crownbeard 4/0
VEHE Verbesina helianthoides Michx. gravelweed 2/0
PHHE16 Phaethusa helianthoides (Michx.) Britt.   0/1
VEOC Verbesina occidentalis (L.) Walt. yellow crownbeard 1/0
PHOC4 Phaethusa occidentalis (L.) Britt.   0/1
VEVI3 Verbesina virginica L. white crownbeard 4/0
VEVIV Verbesina virginica L. var. virginica white crownbeard    
PHVI6 Phaethusa virginica (L.) Britt.   0/1
VEFO Vernicia fordii (Hemsl.) Airy-Shaw tungoil tree 2/0
VERNO Vernonia Schreb. ironweed 5/0
VEAC Vernonia acaulis (Walt.) Gleason stemless ironweed 2/0
VEAR3 Vernonia arkansana DC. Arkansas ironweed    
VECR2 Vernonia crinita Raf.   0/1
VEBA Vernonia baldwinii Torr. Baldwin's ironweed 1/1
VEFA2 Vernonia fasciculata Michx. prairie ironweed 0/1
VEGI Vernonia gigantea (Walt.) Trel. giant ironweed 6/0
VEGIG Vernonia gigantea (Walt.) Trel. ssp. gigantea giant ironweed    
VEAL7 Vernonia altissima Nutt.   1/1
VEGL Vernonia glauca (L.) Willd. broadleaf ironweed 1/1
VEMA2 Vernonia marginata (Torr.) Raf. plains ironweed 0/1
VEMI2 Vernonia missurica Raf. Missouri ironweed 1/2
VENO Vernonia noveboracensis (L.) Michx. New York ironweed 4/2
VETE3 Vernonia texana (Gray) Small Texas ironweed 3/0
VEAG Veronica agrestis L. green field speedwell 1/1
VEAM2 Veronica americana Schwein. ex Benth. American speedwell 7/2
VEAN2 Veronica anagallis-aquatica L. water speedwell 6/2
VEAN3 Veronica anagallis L.   0/1
VEAR Veronica arvensis L. corn speedwell 2/1
VEAUT Veronica austriaca L. ssp. teucrium (L.) D.A. Webb broadleaf speedwell 1/0
VECH Veronica chamaedrys L. germander speedwell 1/1
VECO Veronica copelandii Eastw. Copeland's speedwell 2/0
VECU Veronica cusickii Gray Cusick's speedwell 3/0
VEHE2 Veronica hederifolia L. ivyleaf speedwell 0/1
VEOF2 Veronica officinalis L. common gypsyweed 3/1
VEOFT Veronica officinalis L. var. tournefortii (Vill.) Reichenb. common gypsyweed    
VETO Veronica tournefortii Vill.   0/1
VEPE2 Veronica peregrina L. neckweed 4/2
VEPEX2 Veronica peregrina L. ssp. xalapensis (Kunth) Pennell hairy purslane speedwell 1/0
VEPE3 Veronica persica Poir. birdeye speedwell 4/0
VESC2 Veronica scutellata L. skullcap speedwell 1/1
VESE Veronica serpyllifolia L. thymeleaf speedwell 3/1
VESES Veronica serpyllifolia L. ssp. serpyllifolia thymeleaf speedwell    
VESE3 Veronicastrum serpyllifolium (L.) Fourr.   3/0
VEWO2 Veronica wormskjoldii Roemer & J.A. Schultes American alpine speedwell 6/2
VEVI4 Veronicastrum virginicum (L.) Farw. Culver's root 4/1
LEVI12 Leptandra virginica (L.) Nutt.   0/1
VEPON Vesicarpa potentilloides (Gray) Rydb. var. nitrophilum (Cronq.) Kartesz fivefinger chickensage    
SPPON Sphaeromeria potentilloides (Gray) Heller var. nitrophila (Cronq.) A. Holmgren, L. Shultz & Lowrey   3/0
VEPOP Vesicarpa potentilloides (Gray) Rydb. var. potentilloides fivefinger chickensage    
SPPO4 Sphaeromeria potentilloides (Gray) Heller   1/0
VEZI80 Vetiveria zizanioides (L.) Nash ex Small vetivergrass 0/1
VIBUR Viburnum L. viburnum 6/0
VIAC Viburnum acerifolium L. mapleleaf viburnum 8/1
VIBU4 Viburnum ×burkwoodii Burkwood & Skipw. [excluded] 1/0
VICA19 Viburnum carlesii Hemsl. 3/0
VIDE Viburnum dentatum L. southern arrowwood 7/2
VIDED4 Viburnum dentatum L. var. dentatum southern arrowwood    
VIPU7 Viburnum pubescens (Ait.) Pursh   0/1
VISC Viburnum scabrellum Torr. & Gray ex Chapman   0/1
VIDEV Viburnum dentatum L. var. venosum (Britt.) Gleason southern arrowwood    
VIVE2 Viburnum venosum Britt.   0/1
VIDI80 Viburnum dilatatum Thunb. linden arrowwood 1/0
VIED Viburnum edule (Michx.) Raf. squashberry    
VIPA11 Viburnum pauciflorum La Pylaie ex Torr. & Gray   0/1
VIFA4 Viburnum farreri Stearn Culver's root 1/0
VIFR3 Viburnum fragrans Bunge   1/0
VILA Viburnum lantana L. wayfaringtree 3/1
VILA11 Viburnum lantanoides Michx. hobblebush 1/0
VIAL3 Viburnum alnifolium Marsh.   1/1
VILE Viburnum lentago L. nannyberry 13/4
VIMO Viburnum molle Michx. softleaf arrowwood 0/1
VINU Viburnum nudum L. possumhaw 6/2
VINUC Viburnum nudum L. var. cassinoides (L.) Torr. & Gray withe-rod 2/0
VICA Viburnum cassinoides L.   2/1
VIOP Viburnum opulus L. European cranberrybush 5/1
VIOPA2 Viburnum opulus L. var. americanum Ait. American cranberrybush 1/0
VITR8 Viburnum trilobum Marsh.   4/0
VIPL Viburnum plicatum Thunb. Japanese snowball 2/0
VIPR Viburnum prunifolium L. blackhaw 9/2
VIRA Viburnum rafinesquianum J.A. Schultes downy arrowwood 2/0
VIRE7 Viburnum recognitum Fern. southern arrowwood 3/1
VIDEL Viburnum dentatum L. var. lucidum Ait.   1/0
VIRH Viburnum rhytidophyllum Hemsl. leatherleaf arrowwood 2/0
VIRU Viburnum rufidulum Raf. rusty blackhaw 6/1
VISI Viburnum sieboldii Miq. Siebold's arrowwood 2/0
VISU3 Viburnum suspensum Lindl. viburnum 1/0
VITI2 Viburnum tinus L. laurustinus 3/0
VIAM Vicia americana Muhl. ex Willd. American vetch 10/2
VIAMA3 Vicia americana Muhl. ex Willd. ssp. americana American vetch 2/0
VIAMM3 Vicia americana Muhl. ex Willd. ssp. minor (Hook.) C.R. Gunn mat vetch    
VISP2 Vicia sparsifolia Nutt. ex Torr. & Gray   0/1
VIAR81 Vicia articulata Hornem. oneflower vetch 1/0
VIBE Vicia benghalensis L. reddish tufted vetch 1/0
VIAT2 Vicia atropurpurea Desf.   1/0
VICA2 Vicia caroliniana Walt. Carolina vetch 3/1
VICR Vicia cracca L. bird vetch 1/1
VICRT Vicia cracca L. ssp. tenuifolia (Roth) Gaudin cow vetch    
VITE2 Vicia tenuifolia Roth   1/0
VIDI Vicia ?disperma DC. European vetch 1/0
VIER81 Vicia ervilia (L.) Willd. [excluded] blister vetch 1/0
VIFA Vicia faba L. horsebean 1/0
VIFU Vicia fulgens Battand. vetch 1/0
VIGR Vicia grandiflora Scop. large yellow vetch 2/0
VIHI Vicia hirsuta (L.) S.F. Gray tiny vetch 2/1
VIHY80 Vicia hybrida L. hairy yellow vetch 1/0
VILA2 Vicia lathyroides L. spring vetch 1/0
VILU Vicia ludoviciana Nutt. Louisiana vetch 1/1
VILUL4 Vicia ludoviciana Nutt. ssp. leavenworthii (Torr. & Gray) Lassetter & Gunn. Leavenworth's vetch    
VILE2 Vicia leavenworthii Torr. & Gray   1/0
VILUL2 Vicia ludoviciana Nutt. ssp. ludoviciana Louisiana vetch    
VITE6 Vicia texana (Torr. & Gray) Small   1/0
VILU2 Vicia lutea L. smooth yellow vetch 1/0
VIME Vicia menziesii Spreng. Hawai'i vetch 1/0
VIMI Vicia minutiflora F.G. Dietr. pygmyflower vetch    
VIMI7 Vicia micrantha Nutt. ex Torr. & Gray   1/1
VIMO80 Vicia monantha Retz. barn vetch 1/0
VINA Vicia narbonensis L. purple broad vetch 1/0
VINI81 Vicia nigricans Hook. & Arn. black vetch 1/0
VINIG Vicia nigricans Hook. & Arn. ssp. gigantea (Hook.) Lassetter & Gunn. giant vetch 3/0
VIGI Vicia gigantea Hook.   2/0
VIPA2 Vicia pannonica Crantz Hungarian vetch 1/0
VIPE80 Vicia peregrina L. wandering vetch 1/0
VIPU2 Vicia pulchella Kunth sweetclover vetch 1/0
VISA Vicia sativa L. garden vetch 2/1
VISAN2 Vicia sativa L. ssp. nigra (L.) Ehrh. garden vetch 9/0
VIAN Vicia angustifolia L.   1/1
VISAS2 Vicia sativa L. ssp. sativa garden vetch 1/0
VISE Vicia sepium L. bush vetch 1/1
VITE Vicia tetrasperma (L.) Schreb. lentil vetch 1/1
VIVI Vicia villosa Roth winter vetch 4/0
VIVIV8 Vicia villosa Roth ssp. varia (Host) Corb. winter vetch 3/0
VIDA Vicia dasycarpa Ten.   1/0
VIAM9 Victoria amazonica (Poepp.) J.C. Sowerby Amazon water-lily 4/0
VICR4 Victoria cruziana A.D. Orb. Santa Cruz water-lily 1/0
VIAD2 Vigna adenantha (G.F.W. Mey.) Marechal, Mascherpa & Stanier wild pea 2/0
PHAD3 Phaseolus adenanthus G.F.W. Mey.   1/0
VIAN7 Vigna angularis (Willd.) Ohwi & Ohashi adzuki bean    
PHAN7 Phaseolus angularis (Willd.) W. Wight   1/0
VIAN3 Vigna antillana (Urban) Fawcett & Rendle Antilles bean 2/0
VIHO80 Vigna hosei (Craib) Backer Sarawak bean 1/0
VILO6 Vigna longifolia (Benth.) Verdc. longleaf cowpea 1/0
VILU3 Vigna luteola (Jacq.) Benth. hairypod cowpea 4/0
VIMA3 Vigna marina (Burm. f.) Merr. notched cowpea 1/0
VIMU7 Vigna mungo (L.) Hepper black gram    
PHMU8 Phaseolus mungo L.   1/0
VIPE7 Vigna peduncularis (Kunth) Fawcett & Rendle purple cowpea 3/0
PHPE6 Phaseolus peduncularis Kunth   1/0
VIPR10 Vigna praecox Verdc. 1/0
VIRA4 Vigna radiata (L.) R. Wilczek mung bean 1/0
VIRAR2 Vigna radiata (L.) R. Wilczek var. radiata mung bean    
PHAU9 Phaseolus aureus Roxb.   1/0
VISP Vigna speciosa (Kunth) Verdc. wondering cowpea    
PHSP80 Phaseolus speciosus Kunth   1/0
VISU7 Vigna subterranea (L.) Verdc. bambarra groundnut 1/0
VIUN Vigna unguiculata (L.) Walp. blackeyed pea 1/0
VISI5 Vigna sinensis (L.) Savi   1/1
VIUNC2 Vigna unguiculata (L.) Walp. ssp. cylindrica (L.) Verdc. catjang    
VICY Vigna cylindrica (L.) Skeels   1/0
VIUNS2 Vigna unguiculata (L.) Walp. ssp. sesquipedalis (L.) Verdc. yardlong bean    
VISE10 Vigna sesquipedalis (L.) Fruw.   1/0
VIUNU Vigna unguiculata (L.) Walp. ssp. unguiculata southern pea 1/0
VIVE Vigna vexillata (L.) A. Rich. zombi pea 1/0
VIDE3 Viguiera dentata (Cav.) Spreng. toothleaf goldeneye 1/0
VIRE Viguiera reticulata S. Wats. netvein goldeneye 2/0
VIST Viguiera stenoloba Blake resinbush 3/0
VIMA Vinca major L. bigleaf periwinkle 3/0
VIMI2 Vinca minor L. common periwinkle 4/1
VIOLA Viola L. violet 4/0
VIAD Viola adunca Sm. hookedspur violet 8/1
VIADA Viola adunca Sm. var. adunca hookedspur violet    
VISU5 Viola subvestita Greene   0/1
VIADO2 Viola adunca Sm. var. oxyceras (S. Wats.) S. Wats. ex Jepson hookedspur violet 1/0
VIAF2 Viola affinis Le Conte sand violet 2/1
VIAR Viola arvensis Murr. European field pansy 1/1
VIAU3 Viola aurea Kellogg golden violet 1/0
VIBA2 Viola bakeri Greene Baker's violet 1/0
VIBE2 Viola beckwithii Torr. & Gray Beckwith's violet 9/0
VIBEB Viola beckwithii Torr. & Gray ssp. beckwithii Beckwith's violet 5/0
VIBI Viola bicolor Pursh field pansy 4/0
VIKI Viola kitaibeliana auct. non J.A. Schultes [misapplied]   1/0
VIKIR Viola kitaibeliana J.A. Schultes var. rafinesquei Fern.   1/0
VIRA5 Viola rafinesquei Greene   2/1
VIBL Viola blanda Willd. sweet white violet 4/1
VIBLP Viola blanda Willd. var. palustriformis Gray sweet white violet 2/0
VIIN Viola incognita Brainerd   0/1
VIBR Viola brittoniana Pollard northern coastal violet 1/1
VIBRP Viola brittoniana Pollard var. pectinata (Bickn.) Alexander northern coastal violet    
VIPE9 Viola pectinata Bickn.   0/1
VICA4 Viola canadensis L. Canadian white violet 4/1
VICAR Viola canadensis L. var. rugulosa (Greene) C.L. Hitchc. creepingroot violet 1/0
VIRU7 Viola rugulosa Greene   0/1
VICAS2 Viola canadensis L. var. scopulorum Gray Canadian white violet    
VISC6 Viola scopulorum (Gray) Greene   2/0
VICH2 Viola charlestonensis M.S. Baker & J.C. Clausen ex Clokey Charleston Mountain violet 7/0
VICU Viola cucullata Ait. marsh blue violet 7/2
VIDO Viola douglasii Steud. Douglas' golden violet 8/0
VIEG Viola egglestonii Brainerd glade violet 2/0
VIFL Viola flettii Piper Olympic violet 1/0
VIGL Viola glabella Nutt. pioneer violet 7/0
VIHA Viola hallii Gray Oregon violet 3/0
VIHA2 Viola hastata Michx. halberdleaf yellow violet 1/1
VIHE2 Viola helenae Forbes & Lydgate Wahiawa stream violet 1/0
VIHI2 Viola hirsutula Brainerd southern woodland violet 0/1
VILA10 Viola labradorica Schrank alpine violet 0/1
VICO2 Viola conspersa Reichenb.   2/1
VILA4 Viola lanceolata L. bog white violet 5/1
VILAO Viola lanceolata L. ssp. occidentalis (Gray) Russell bog white violet    
VIPRO2 Viola primulifolia L. ssp. occidentalis (Gray) L.E. McKinney & R.J. Little   1/1
VILAV Viola lanceolata L. ssp. vittata (Greene) Russell bog white violet    
VIVI7 Viola vittata Greene   1/0
VILA5 Viola ?langloisii Greene Langlois' violet 1/0
VILA6 Viola langsdorfii Fisch. ex Gingins Aleutian violet 1/0
VILO2 Viola lobata Benth. pine violet 2/0
VIMA2 Viola macloskeyi Lloyd small white violet 7/2
VIMAM Viola macloskeyi Lloyd ssp. macloskeyi small white violet 1/0
VIMAP3 Viola macloskeyi Lloyd ssp. pallens (Banks ex Ging) M.S. Baker smooth white violet    
VIPA8 Viola pallens (Banks ex Ging) Brainerd   1/1
VIMI3 Viola missouriensis Greene Missouri violet 0/1
VINE Viola nephrophylla Greene northern bog violet 3/2
VIRE9 Viola retusa Greene   0/1
VINO Viola novae-angliae House New England blue violet 0/1
VINU2 Viola nuttallii Pursh Nuttall's violet 5/1
VIOD Viola odorata L. sweet violet 2/1
VIOR Viola orbiculata Geyer ex Holz. darkwoods violet 6/0
VIPA18 Viola ×palmata L. (pro sp.) [brittoniana or pedatifida × affinis or sororia] early blue violet    
VIPA3 Viola palmata L. [hybrid]   1/1
VIST2 Viola stoneana House   0/1
VIPA4 Viola palustris L. marsh violet 2/1
VIPE Viola pedata L. birdfoot violet 16/1
VIPE2 Viola pedatifida G. Don prairie violet 2/1
VIPE3 Viola pedunculata Torr. & Gray Johnny-jump-up 5/0
VIPET Viola pedunculata Torr. & Gray ssp. tenuifolia M.S. Baker & J.C. Clausen Johnny-jump-up 2/0
VIPR3 Viola praemorsa Dougl. ex Lindl. canary violet 2/0
VIPRL Viola praemorsa Dougl. ex Lindl. ssp. linguifolia (Nutt.) M.S. Baker & J.C. Clausen ex M.E. Peck upland yellow violet 2/0
VIPR4 Viola ×primulifolia L. (pro sp.) [lanceolata × macloskeyi] 4/0
VIPU3 Viola pubescens Ait. downy yellow violet 2/2
VIPUP2 Viola pubescens Ait. var. pubescens downy yellow violet    
VIER3 Viola eriocarpon (Nutt.) Schwein.   0/1
VIPE4 Viola pensylvanica Michx.   2/0
VIPU4 Viola purpurea Kellogg goosefoot violet 8/0
VIPUQ Viola purpurea Kellogg ssp. quercetorum (M.S. Baker & J.C. Clausen) R.J. Little goosefoot violet 2/0
VIPUV2 Viola purpurea Kellogg ssp. venosa (S. Wats.) M.S. Baker & J.C. Clausen goosefoot violet 5/0
VIRE2 Viola renifolia Gray white violet 0/1
VIRO Viola rostrata Pursh longspur violet 1/1
VIRO2 Viola rotundifolia Michx. roundleaf yellow violet 2/1
VISA2 Viola sagittata Ait. arrowleaf violet 4/1
VISAO Viola sagittata Ait. var. ovata (Nutt.) Torr. & Gray arrowleaf violet    
VIFI Viola fimbriatula Sm.   0/1
VISAS5 Viola sagittata Ait. var. sagittata arrowleaf violet    
VIEM Viola emarginata (Nutt.) Le Conte   1/1
VISE2 Viola selkirkii Pursh ex Goldie Selkirk's violet 0/1
VISE3 Viola sempervirens Greene evergreen violet 3/0
VISE4 Viola septemloba Le Conte southern coastal violet 0/1
VISE5 Viola septentrionalis Greene northern woodland violet 0/1
VISH Viola sheltonii Torr. Shelton's violet 5/0
VISO Viola sororia Willd. common blue violet 6/1
VILA7 Viola latiuscula Greene   0/1
VIPA5 Viola papilionacea Pursh p.p.   2/1
VIST3 Viola striata Ait. striped cream violet 1/1
VITR Viola tricolor L. johnny jumpup 1/1
VITR2 Viola triloba Schwein. three-lobe violet 2/1
VITR3 Viola trinervata (T.J. Howell) T.J. Howell ex Gray Rainier violet 2/0
VIVA Viola vallicola A. Nels. sagebrush violet 2/0
VIVI10 Viola ×viarum Pollard [missouriensis or nephrophylla × pedatifida] twoflower violet    
VIVI2 Viola viarum Pollard [hybrid]   0/1
VIWA Viola walteri House prostrate blue violet 1/1
VIWI Viola ×wittrockiana Gams. [altaica × lutea or tricolor] 1/0
VIOR6 Virgilia oroboides (Bergius) Salter keurboom 1/0
VIDI9 Virgilia divaricata Adamson   1/0
VIAL2 Viscum album L. European mistletoe 3/0
VITEX Vitex L. chastetree 0/1
VIAG Vitex agnus-castus L. lilac chastetree 2/1
VITR7 Vitex trifolia L. simpleleaf chastetree 2/0
VITIS Vitis L. grape 4/0
VIAE Vitis aestivalis Michx. summer grape 6/2
VIAEB Vitis aestivalis Michx. var. bicolor Deam summer grape    
VIBI5 Vitis bicolor Le Conte, non Raf.   0/1
VIAEL Vitis aestivalis Michx. var. lincecumii (Buckley) Munson long grape 1/0
VIAR2 Vitis arizonica Engelm. canyon grape 4/0
VICA5 Vitis californica Benth. California wild grape 1/0
VICI2 Vitis cinerea (Engelm.) Millard graybark grape 3/2
VILA8 Vitis labrusca L. fox grape 2/1
VIPA7 Vitis palmata Vahl catbird grape 2/2
VIRI Vitis riparia Michx. riverbank grape 2/2
VIRO3 Vitis rotundifolia Michx. muscadine 10/2
VIRU2 Vitis rupestris Scheele sand grape 0/1
VIVU Vitis vulpina L. frost grape 2/2
VICO3 Vitis cordifolia Michx.   0/1
VOCU Vossia cuspidata Griff. hippo grass 1/0
VOAP Voyria aphylla (Jacq.) Pers. leafless ghostplant 2/0
VRMA Vriesea macrostachya (Bello) Mez parasita 1/0
VUBR Vulpia bromoides (L.) S.F. Gray brome fescue 4/0
FEDE2 Festuca dertonensis (All.) Aschers. & Graebn.   0/1
VUEL Vulpia elliotea (Raf.) Fern. squirreltail fescue    
FESC3 Festuca sciurea Nutt.   0/2
VUMI Vulpia microstachys (Nutt.) Munro small fescue 1/0
VUMIC Vulpia microstachys (Nutt.) Munro var. ciliata (Beal) Lonard & Gould Eastwood fescue    
FEEA Festuca eastwoodiae Piper   0/1
FEGR Festuca grayi Piper   0/1
VUMIC2 Vulpia microstachys (Nutt.) Munro var. confusa (Piper) Lonard & Gould confusing fescue    
FECO4 Festuca confusa Piper   0/1
FETR2 Festuca tracyi A.S. Hitchc.   0/1
VUMIM Vulpia microstachys (Nutt.) Munro var. microstachys desert fescue    
FEAR Festuca arida Elmer   0/1
FEMI2 Festuca microstachys Nutt.   0/1
VUMIP Vulpia microstachys (Nutt.) Munro var. pauciflora (Scribn. ex Beal) Lonard & Gould Pacific fescue    
FEPA Festuca pacifica Piper   0/1
FERE2 Festuca reflexa Buckl.   0/1
VUMY Vulpia myuros (L.) K.C. Gmel. rat-tail fescue 1/0
FEME Festuca megalura Nutt.   0/1
FEMY2 Festuca myuros L.   0/2
VUOC Vulpia octoflora (Walt.) Rydb. sixweeks fescue 1/0
VUOCO Vulpia octoflora (Walt.) Rydb. var. octoflora sixweeks fescue    
FEOC3 Festuca octoflora Walt.   0/2
WACHE Wachendorfia Burm. wachendorfia 2/0
WAFR Waldsteinia fragarioides (Michx.) Tratt. Appalachian barren strawberry 1/1
WAFRD Waldsteinia fragarioides (Michx.) Tratt. ssp. doniana (Tratt.) Teppner Appalachian barren strawberry    
WADO Waldsteinia doniana Tratt.   0/1
WALA Wallenia lamarckiana (A. DC.) Mez jacanillo 1/0
WAIN Waltheria indica L. uhaloa    
WAAM2 Waltheria americana L.   2/0
WACA Warea carteri Small Carter's pinelandcress 1/0
WASE Warea sessilifolia Nash sessileleaf pinelandcress 1/0
WASC Warnockia scutellarioides (Engelm. & Gray) M.W. Turner prairie brazosmint    
BRSC2 Brazoria scutellarioides Engelm. & Gray   1/0
WAEX Warnstorfia exannulata (Schimp. in B.S.G.) Loeske warnstorfia moss 3/0
WAFLF Warnstorfia fluitans (Hedw.) Loeske var. fluitans warnstorfia moss    
DRFL70 Drepanocladus fluitans (Hedw.) Warnst.   3/0
WAFI Washingtonia filifera (L. Linden) H. Wendl. California fan palm 10/1
WARO Washingtonia robusta H. Wendl. Washington fan palm 1/0
WATSO Watsonia P. Mill. bugle-lily 1/0
WEDEL Wedelia Jacq. creepingoxeye 2/0
WEFR Wedelia fruticosa Jacq. coastal plain creepingoxeye 3/0
WELA Wedelia lanceolata DC. riverbank creepingoxeye 1/0
WETE Wedelia texana (Gray) B.L. Turner hairy wedelia    
ZEHI2 Zexmenia hispida auct. non (Kunth) Gray ex Small [misapplied]   1/0
WEIGE Weigela Thunb. weigela    
WEIGE2 Weigelia Schreb. [orthographic error]   1/0
WEFL2 Weigela florida (Bunge) A. DC. oldfashioned weigela 1/0
WEPI Weinmannia pinnata L. bastard briziletto 2/0
WECO3 Weissia controversa Hedw. controverial weissia moss 6/0
WHMO Whipplea modesta Torr. common whipplea 2/0
WIUR Wigandia urens (Ruiz & Pavón) Kunth Caracus wigandia 1/0
WIGY Wilkesia gymnoxiphium Gray iliau 2/0
WITE Willkommia texana A.S. Hitchc. Texas willkommia 0/1
WIRE Wislizenia refracta Engelm. spectacle fruit 1/0
WIFL Wisteria floribunda (Willd.) DC. Japanese wisteria 3/0
WIFR Wisteria frutescens (L.) Poir. American wisteria 4/1
KRFR Kraunhia frutescens (L.) Greene   0/1
KRMA Kraunhia macrostachya (Torr. & Gray) Small   0/1
WIMA Wisteria macrostachya (Torr. & Gray) Nutt. ex B.L. Robins. & Fern.   1/0
WISI Wisteria sinensis (Sims) DC. Chinese wisteria 8/0
WOBR Wolffia brasiliensis Weddell Brazilian watermeal    
WOPA Wolffia papulifera C.H. Thompson   0/1
WOPU2 Wolffia punctata Griseb.   0/1
WOCO Wolffia columbiana Karst. Columbian watermeal 0/1
WOGL2 Wolffiella gladiata (Hegelm.) Hegelm. Florida mudmidget    
WOFL2 Wolffia floridana (J.D. Sm.) J.D. Sm. ex Hegelm.   0/1
WOAL Woodsia alpina (Bolton) S.F. Gray alpine woodsia 0/1
WOGL Woodsia glabella R. Br. ex Richards. smooth woodsia 0/1
WOIL Woodsia ilvensis (L.) R. Br. rusty woodsia 0/1
WONE Woodsia neomexicana Windham New Mexico cliff fern 1/0
WOOB2 Woodsia obtusa (Spreng.) Torr. bluntlobe cliff fern 1/1
WOOR Woodsia oregana D.C. Eat. Oregon cliff fern 3/1
WOPH Woodsia phillipsii Windham Phillips' cliff fern 3/0
WOSC Woodsia scopulina D.C. Eat. Rocky Mountain woodsia 4/1
WOAR Woodwardia areolata (L.) T. Moore netted chainfern 3/1
LOAR7 Lorinseria areolata (L.) K. Presl   0/1
WOFI Woodwardia fimbriata Sm. giant chainfern 8/1
WOVI Woodwardia virginica (L.) Sm. Virginia chainfern 4/1
ANVI6 Anchistea virginica (L.) K. Presl   0/1
WYETH Wyethia Nutt. mule-ears 2/0
WYAM Wyethia amplexicaulis (Nutt.) Nutt. mule-ears 6/0
WYAN Wyethia angustifolia (DC.) Nutt. California compassplant 4/0
WYAR Wyethia arizonica Gray Arizona mule-ears 4/0
WYGL Wyethia glabra Gray Coast Range mule-ears 1/0
WYHE2 Wyethia helianthoides Nutt. sunflower mule-ears 3/0
WYMA Wyethia ×magna A. Nels. (pro sp.) [amplexicaulis × arizonica] 2/0
WYMO Wyethia mollis Gray woolly mule-ears 5/0
XATE Xanthisma texanum DC. Texas sleepydaisy 2/0
XANTH2 Xanthium L. cocklebur 1/0
XASP2 Xanthium spinosum L. spiny cockleburr 3/1
XAST Xanthium strumarium L. rough cockleburr 3/1
XASTC Xanthium strumarium L. var. canadense (P. Mill.) Torr. & Gray Canada cockleburr    
XACO Xanthium commune Britt.   0/1
XAEC Xanthium echinatum Murr.   0/1
XAGL2 Xanthium glanduliferum Greene   0/1
XAPE2 Xanthium pensylvanicum Wallr.   0/1
XASP3 Xanthium speciosum Kearney   0/1
XASTG Xanthium strumarium L. var. glabratum (DC.) Cronq. rough cockleburr    
XAAM2 Xanthium americanum Walt.   0/1
XAIN Xanthium inflexum Mackenzie & Bush   0/1
XANO Xanthoparmelia norchlorochroa Hale xanthoparmelia lichen 1/0
XASI Xanthorhiza simplicissima Marsh. yellowroot 2/1
XAEL60 Xanthoria elegans (Link) Th. Fr. elegant orange wall lichen 2/0
XAPO60 Xanthoria polycarpa (Hoffm.) Rieber orange wall lichen 1/0
XEAS Xerophyllum asphodeloides (L.) Nutt. eastern turkeybeard 6/1
XETE Xerophyllum tenax (Pursh) Nutt. common beargrass 17/0
XIAM Ximenia americana L. tallow wood 1/0
XYBI Xylococcus bicolor Nutt. mission manzanita 4/0
XYGLG Xylorhiza glabriuscula Nutt. var. glabriuscula smooth woodyaster    
MAGL7 Machaeranthera glabriuscula (Nutt.) Cronq. & Keck   1/0
XYTO2 Xylorhiza tortifolia (Torr. & Gray) Greene Mojave woodyaster 4/0
XYTOT Xylorhiza tortifolia (Torr. & Gray) Greene var. tortifolia Mojave woodyaster 4/0
ASAB3 Aster abatus Blake   1/0
MATO4 Machaeranthera tortifolia (Torr. & Gray) Cronq. & Keck   1/0
XYSC2 Xylosma schaefferioides Gray white logwood 2/0
XYRIS Xyris L. yelloweyed grass 1/0
XYCA Xyris caroliniana Walt. Carolina yelloweyed grass 2/1
XYAR2 Xyris arenicola Small   0/1
XYFL5 Xyris flexuosa Muhl. ex Ell.   0/1
XYDI Xyris difformis Chapman bog yelloweyed grass 1/1
XYDID Xyris difformis Chapman var. difformis bog yelloweyed grass 1/0
XYFI Xyris fimbriata Ell. fringed yelloweyed grass 1/2
XYJU Xyris jupicai L.C. Rich. Richard's yelloweyed grass    
XYCO5 Xyris communis Kunth   0/1
XYEL3 Xyris elata Chapman   0/1
XYLA Xyris laxifolia Mart. laxleaf yelloweyed grass 1/0
XYMO Xyris montana Ries northern yelloweyed grass 0/1
XYSM Xyris smalliana Nash Small's yelloweyed grass 1/0
XYCO6 Xyris congdonii Small   1/1
XYTO Xyris torta Sm. slender yelloweyed grass 5/1
YOJA Youngia japonica (L.) DC. Oriental false hawksbeard 2/0
YUCCA Yucca L. yucca 8/0
YUAL Yucca aloifolia L. aloe yucca 1/0
YUAN2 Yucca angustissima Engelm. ex Trel. narrowleaf yucca 5/0
YUBA Yucca baccata Torr. banana yucca 11/1
YUBA2 Yucca baileyi Woot. & Standl. Navajo yucca 3/0
YUBR Yucca brevifolia Engelm. Joshua tree 14/0
YUCO Yucca constricta Buckl. Buckley's yucca 1/0
YUEL Yucca elata (Engelm.) Engelm. soaptree yucca 11/1
YUFA Yucca faxoniana (Trel.) Sarg. Eve's needle    
YUCA2 Yucca carnerosana auct. non (Trel.) McKelvey [misapplied]   7/0
YUFI Yucca filamentosa L. Adam's needle 10/1
YUGL Yucca glauca Nutt. soapweed yucca 7/1
YUGLG2 Yucca glauca Nutt. var. glauca soapweed yucca    
YUAN Yucca angustifolia Pursh   7/0
YUMA4 Yucca madrensis Gentry    
YUSC3 Yucca schottii auct. non Engelm. [misapplied]   1/0
YUPA Yucca pallida McKelvey twistleaf yucca 1/0
YURU Yucca rupicola Scheele Texas yucca 1/0
YUSC2 Yucca schidigera Roezl ex Ortgies Mojave yucca 6/0
YUMA Yucca macrocarpa Merriam, non Engelm.   1/0
YUSC Yucca schottii Engelm. Schott's yucca 1/0
YUTH2 Yucca thornberi McKelvey   2/0
YUTH Yucca thompsoniana Trel. Thompson's yucca 7/0
YURO Yucca rostrata Engelm. ex Trel.   1/0
YUTO Yucca torreyi Shafer Torrey's yucca 6/0
YUTR Yucca treculeana Carr. Don Quixote's lace 1/0
ZAPU Zamia pumila L. coontie 2/0
ZAPUP Zamia pumila L. ssp. pumila coontie    
ZAFL2 Zamia floridana A. DC.   1/0
ZAIN Zamia integrifolia Ait.   1/0
ZAPA Zannichellia palustris L. horned pondweed 1/1
ZAAE Zantedeschia aethiopica (L.) Spreng. calla lily 4/0
ZANTH Zanthoxylum L. pricklyash 2/0
ZAAM Zanthoxylum americanum P. Mill. common pricklyash 1/2
ZACL Zanthoxylum clava-herculis L. Hercules' club 7/2
ZAFOS Zapoteca formosa (Kunth) H.M. Hern. var. schottii (Torr. ex S. Watson) H.M. Hern. Schott's stickpea    
CASC3 Calliandra schottii Torr. ex S. Watson   1/0
ZAPO2 Zapoteca portoricensis (Jacq.) H. Hernández white stickpea 1/0
CAPO10 Calliandra portoricensis (Jacq.) Benth.   1/0
ZEMA Zea mays L. corn 1/1
ZEME Zea mexicana (Schrad.) Kuntze Mexican teosinte    
EUME8 Euchlaena mexicana Schrad.   0/1
ZESE80 Zelkova serrata (Thunb.) Makino Japanese zelkova 1/0
ZEPU3 Zenobia pulverulenta (Bartr. ex Willd.) Pollard honeycup 2/1
ZEPHY Zephyranthes Herbert zephyrlily 2/0
ZEAT Zephyranthes atamasca (L.) Herbert Atamasco lily 3/0
ZEATA Zephyranthes atamasca (L.) Herbert var. atamasca Atamasco lily 2/0
ATAT Atamosco atamasca (L.) Greene   0/1
ZECA Zephyranthes candida (Lindl.) Herbert autumn zephyrlily 1/0
ZECI Zephyranthes citrina Baker citron zephyrlily 1/0
ZEGR Zephyranthes grandiflora Lindl. rosepink zephyrlily 4/0
ZESI Zephyranthes simpsonii Chapman redmargin zephyrlily 3/0
ZIGAD Zigadenus Michx. deathcamas 2/0
ZIBR Zigadenus brevibracteatus (M.E. Jones) Hall desert deathcamas 3/0
ZIDE Zigadenus densus (Desr.) Fern. Osceola's plume 1/0
ZIEL2 Zigadenus elegans Pursh mountain deathcamas 10/1
ZIELE Zigadenus elegans Pursh ssp. elegans mountain deathcamas    
ANEL5 Anticlea elegans (Pursh) Rydb.   3/1
ZIELG Zigadenus elegans Pursh ssp. glaucus (Nutt.) Hultén mountain deathcamas    
ZIGL2 Zigadenus glaucus Nutt.   1/0
ZIFR Zigadenus fremontii (Torr.) Torr. ex S. Wats. Fremont's deathcamas 3/0
ZIGL Zigadenus glaberrimus Michx. sandbog deathcamas 1/2
ZILE Zigadenus leimanthoides Gray pine barren deathcamas 3/0
OCLE2 Oceanorus leimanthoides (Gray) Small   0/1
ZIMI2 Zigadenus micranthus Eastw. smallflower deathcamas 2/0
ZIMIF2 Zigadenus micranthus Eastw. var. fontanus (Eastw.) O.S. Walsh ex McNeal smallflower deathcamas 3/0
ZINU Zigadenus nuttallii (Gray) S. Wats. Nuttall's deathcamas 1/0
TONU2 Toxicoscordion nuttallii (Gray) Rydb.   0/1
ZIPA2 Zigadenus paniculatus (Nutt.) S. Wats. foothill deathcamas 6/0
ZIVEG Zigadenus venenosus S. Wats. var. gramineus (Rydb.) Walsh ex M.E. Peck grassy deathcamas    
TOGR3 Toxicoscordion gramineum (Rydb.) Rydb.   0/1
ZIVEV Zigadenus venenosus S. Wats. var. venenosus meadow deathcamas 2/0
ZIOF Zingiber officinale Roscoe garden ginger 2/0
ZINNI Zinnia L. zinnia 1/0
ZIAC Zinnia acerosa (DC.) Gray desert zinnia 8/0
ZIPU Zinnia pumila Gray   4/0
ZIGR Zinnia grandiflora Nutt. Rocky Mountain zinnia 2/0
CRGR12 Crassina grandiflora (Nutt.) Kuntze   0/1
ZIPE Zinnia peruviana (L.) L. Peruvian zinnia    
ZIMU3 Zinnia multiflora L.   1/0
ZIVI2 Zinnia violacea Cav. elegant zinnia    
ZIEL Zinnia elegans Jacq.   2/0
ZIAQ Zizania aquatica L. annual wildrice 2/2
ZILA3 Zizania latifolia (Griseb.) Turcz. ex Stapf Manchurian wildrice 1/0
ZIPAI Zizania palustris L. var. interior (Fassett) Dore northern wildrice    
ZIAQI Zizania aquatica L. var. interior Fassett   0/1
ZITE Zizania texana A.S. Hitchc. Texas wildrice 0/1
ZIMI Zizaniopsis miliacea (Michx.) Doell & Aschers. giant cutgrass 2/1
ZIMI3 Zizania miliacea Michx.   0/1
ZIAP Zizia aptera (Gray) Fern. meadow zizia 3/0
ZICO Zizia cordata W.D.J. Koch ex DC.   0/1
ZIAU Zizia aurea (L.) W.D.J. Koch golden zizia 1/1
ZITR Zizia trifoliata (Michx.) Fern. meadow alexanders    
ZIBE Zizia bebbii (Coult. & Rose) Britt.   0/1
ZIRE Ziziphus reticulata (Vahl) DC. cacao rojo 1/0
ZITA Ziziphus taylorii (Britt.) M.C. Johnston Taylor's jujube 1/0
ZIZI Ziziphus zizyphus (L.) Karst. common jujube    
ZIJU Ziziphus jujuba P. Mill.   0/1
ZOBR Zornia bracteata J.F. Gmel. viperina 2/1
ZOGE Zornia gemella Vogel dos hoja zazabacoa de dos hojas    
ZODI80 Zornia diphylla auct. non Pers. [misapplied]   1/0
ZORE Zornia reticulata Sm. neto hoja zarzabacoa de dos hojas 1/0
ZOMA Zostera marina L. seawrack 0/1
ZOMA2 Zoysia matrella (L.) Merr. Manila grass 0/1
ZOTE Zoysia tenuifolia Willd. ex Thiele Mascarene grass 2/0
ZUBR Zuckia brandegeei (Gray) Welsh & Stutz ex Welsh siltbush 5/0
ZUBRP Zuckia brandegeei (Gray) Welsh & Stutz ex Welsh var. plummeri (Stutz & Sanderson) Dorn Plummer's siltbush 2/0
ZYCO Zygodon conoideus (Dicks.) Hook. & Tayl. zygodon moss 5/0
ZYVI2 Zygodon viridissimus (Dicks.) Brid. zygodon moss 3/0
ZYVIR Zygodon viridissimus (Dicks.) Brid. var. rupestris Lindb. ex Hartm. zygodon moss    
ZYRU2 Zygodon rupestris (Lindb. ex Hartm.) Lindb. ex Britt.   5/0
 
Time Generated: 08/30/09 05:40 PM MDT