Prairie Milkweed (Asclepias sullivantii)
Aster family:
Fleabane (Erigeron ochroleucus)
Riddell's Goldenrod (Solidago riddellii)
Mustard family:
Yellow Cress (Rorippa calycina)
Rockrose family:
Frostweed (Helianthemum bicknellii)
Beach Heather (Hudsonia tomentosa)
Pinweed (Lechea stricta)
St. John's-Wort family:
St. John's-wort (Hypericum boreale)
Sedge family:
Sedge (Carex brunnescens)
Sedge (Carex capillaris var.elongata)
Sedge (Carex chordorrhiza)
Sedge (Carex formosa)
Sedge (Carex garberi)
Sedge (Carex gynocrates)
Sedge (Carex limosa)
Sedge (Carex pedunculata)
Sedge (Carex scirpoidea var. scirpiformis)
Sedge (Carex simulata)
Sedge (Carex muricata var. sterilis)
Cyperus (Cyperus engelmannii)
Beak-rush (Rhynochospora capillacea)
Rush family:
Rush (Juncus brachycephalus)
Rush (Juncus brevicaudatus)
Adder's-Tongue family:
Moonwort (Botrychium campestre)
Moonwort (Botrychium minganense)
Moonwort (A new prairie species yet to be named)
Leathery Grape Fern (Botrychium multifidum)
Orchid family:
Prairie Fringed Orchis (Habenaria leucophaea)
Grass family:
Spikebent (Agrostis exarata)
Pull-up Muhly (Muhlenbergiafiliformis)
Ricegrass (Oryzopsis pungens)
Buckwheat or Smartweed family:
Dakota Buckwheat (Eriogonum visheri)
Fern family:
Oak Fern (Gymnocarpium dryopteris)
Phlox family:
Prairie Phlox (Phlox pilosa)
Buttercup or Crowfoot family:
Clematis (Clematis occidentalis)
Rose family:
Three-toothed Cinquefoil (Potentilla tridentata)
Willow family:
Willow (Salix maccalliana)
Scheuchzeria family:
Scheuchzeria (Scheuchzeria palustris)
Figwort family:
Yellow Monkey Flower (Mimulus guttatus)
Mezereum family:
Leatherwood (Dirca palustris)
Sweet Jarvil (Osmorhiza claytonii)
Cluster Sanicle (Sanicula gregaria)
Arum family:
Sweet Flag (Acorus americanus)
Wild Calla (Calla palustris)
Aster family:
Annual Bursage (Ambrosia acanthicarpa)
Arnica (Arnica cordifolia)
Silky Aster (Aster sericeus)
False Yarrow (Chaenactis douglasii)
Swamp Thistle (Cirsium muticum)
Annual Fleabane (Erigeron annuus)
Boneset (Eupatorium perfoliatum)
Sawtooth Sunflower (Helianthus grosseserratus)
Tarweed (Madia glomerata)
Petasites (Petasites frigidus)
Senecio (Senecio eremophilus)
Senecio (Senecio tridenticulatus)
Broad-leaved Goldenrod (Solidago flexicaulis)
Stephanomeria (Stephanomeria runcinata)
Stephanomeria (Stephanomeria tenuifolia)
Barberry family:
Blue Cohosh (Caulophyllum thalictroides)
Oregon Grape (Mahonia repens)
Borage family:
Cryptantha (Cryptantha torreyana)
Mustard family:
Sicklepod (Arabis canadensis)
Spring Cress (Cardamine bulbosa)
Double Bladderpod (Physaria didymocarpha)
Cactus family:
Pin Cushion Cactus (Coryphantha missouriensis)
Bellflower family:
Marsh Bellflower (Campanula aparinoides)
Honeysuckle family:
Bush Honeysuckle (Diervilla lonicera)
Staff-Tree family:
Wahoo (Euonymus atropurpureus)
Morning Glory family:
Cluster Dodder (Cuscuta glomerata)
Smartweed Dodder (Cuscuta polygonorum)
Dodder (Cuscuta umbrosa)
Sedge family:
Sedge (Carex athrostachya)
Sedge (Carex backii)
Sedge (Carex buxbaumii)
Sedge (Carex convoluta)
Sedge (Carex diandra)
Sedge (Carex disperma)
Sedge (Carex foenea)
Sedge (Carex haydenii)
Sedge (Carex leptalea)
Sedge (Carex nebraskensis)
Sedge (Carex pseudocyperus)
Sedge (Carex richardsonii)
Low Flatsedge (Cyperus diandrus)
Brook Flatsedge (Cyperus rivularis)
Spikesedge (Eleocharis parvula)
Spikesedge (Eleocharis pauciflora)
Spikesedge (Eleocharis wolfii)
Cottongrass (Eriophorum chamissonis)
Cottongrass (Eriophorum viridicarinatum)
Drummond Hemicarpha (Hemicarpha drummondii)
Sundew family:
Round-leaved Sundew (Drosera rotundifolia)
Waterwort family:
Waterwort (Elatine triandra)
Horsetail family:
Horsetail (Equisetum palustre)
Meadow Horsetail (Equisetum pratense)
Horsetail (Equisetum sylvaticum)
Dutchman's Breeches family:
Dutchman's Breeches (Dicentra cucullaria)
Gentian family:
Fringed Gentian (Gentianopsis crinata)
Spurred Gentian (Halenia deflexa)
Buckbean (Menyanthes trifoliata)
Geranium family:
Wild Cranesbill (Geranium maculatum)
Gooseberry family:
Dogberry (Ribes cynosbati)
Gooseberry (Ribes inebrians)
Water Milfoil family:
Water Milfoil (Myriophyllum heterophyllum)
Water Milfoil (Myriophyllum pinnatum)
Iris family:
Blue Flag (Iris missouriensis)
Rush family:
Rush (Juncus vaseyi)
Mint family:
Mountain Mint (Pycnanthemum virginianum)
Pea family:
Ground Nut (Apios americana)
Astragalus (Astragalus aboriginum)
Astragalus (Astragalus drumrnondii)
Astragalus (Astragalus neglectus)
Astragalus (Astragalus vexilliflexus)
Nineanther Dalea (Dalea enneandra)
Prairie Mimosa (Desmanthus illinoensis)
Leafy Locoweed (Oxytropis deflexa)
White Locoweed (Oxytropis sericea)
Wild Alfalfa (Psoralea tenuiflora)
Duckweed family:
Wolffia (Wolffia columbiana)
Bladderwort family:
Bladderwort (Utricularia intermedia)
Bladderwort (Utricularia minor)
Lily family:
Wild Onion (Allium canadense)
Yellow Bell (Fritillaria pudica)
Mountain Lily (Leucrocrinum montanum)
Small Bellwort (Uvularia sessiliflora)
Loasa family:
Mentzelia (Mentzelia pumila)
Naiad family:
Naiad (Najas guadalupensis)
Naiad (Najas marina)
Evening Primrose family:
Boisduvalia (Boisduvalia glabella)
Circaea (Circaea alpina)
Purple-leaved Willow Herb (Epilobium coloratum)
Cutleaf Evening Primrose (Oenothera lacinata)
Fourpoint Evening Primrose (Oenothera rhombipetala)
Adder's-Tongue family:
Adder's-tongue (Ophioglossum vulgatum)
Orchid family:
White Lady's Slipper (Cypripedium candidum)
Yellow Lady's Slipper (Cypripedium calceolus)
Showy Lady's Slipper (Cypripedium reginae)
Loesel's Twayblade (Liparis loeselii)
Hooded Ladies' Tresses (Spiranthes romanzoffiana)
Ladies' Tresses (Spiranthes cernua)
Broomrape family:
One-flowered Cancerroot (Orobanche uniflora)
Grass family:
Bromus (Bromus carinatus)
Bromus (Bromus kalmii)
Blue Wild Rye (Elymus glaucus)
Purple Lovegrass (Eragrostis spectabilis)
Whitegrass (Leersia virginica)
Early Panicum (Panicum praecocius)
Alkali Sacaton (Sporobolus airoides)
Phlox family:
Phlox (Phlox alyssifolia)
Smartweed family:
Polygonum (Polygonum douglasii)
Mild Water Pepper (Polygonum hydropiperoides)
Water Smartweed (Polygonum punctatum)
Polygonum (Polygonum sagittatum)
Fern family:
Lady Fern (Athyrium filix-femina)
Wood Fern (Dryopteris carthusiana)
Crested Wood Fern (Dryopteris cristata)
Sensitive Fern (Onoclea sensibilis)
Marsh Fern (Thelypteris palustris)
Slender-lip Fern (Cheilanthes feei)
Purslane family:
Prairie Fameflower (Talinum parviflorum)
Pondweed family:
Pondweed (Potamogeton amplifolius)
Water-thread Pondweed (Potamogeton diversifolius)
Pondweed (Potamogeton filiformis)
Floating-leaved Pondweed (Potamogeton natans)
White-stem Pondweed (Potamogeton praelongus)
Pondweed (Potamogeton strictifolius)
Sheathed Pondweed (Potamogeton vaginatus)
Primrose family:
Primrose (Primula incana)
Buttercup family:
Mousetail (Myosurus aristatus)
Buttercup (Ranunculus cardiophyllus)
Buttercup (Ranunculus flammula)
Hooked Buttercup (Ranunculus recurvatus)
Rose family:
Agrimony (Agrimonia gryposepala)
Purple Avens (Geum rivale)
Cinquefoil (Potentilla diversifolia)
Cinquefoil (Potentilla palustris)
Madder family:
Bedstraw (Galium labradoricum)
Willow family:
Smooth-barked Cottonwood (Populus X acuminata)
Black Cottonwood (Populus balsamifera ssp. trichocarpa)
Willow (Salix pedicellaris)
Saxifrage family:
Bishop's Cap (Mitella nuda)
Grass-of-Parnassus (Parnassia parviflora)
Figwort family:
Blue-eyed Mary (Collinsia parviflora)
Penstemon (Penstemon procerus)
Culver's Root (Veronicastrum virginicum)
Selaginella family:
Selaginella (Selaginella rupestris)
Elm family:
Slippery Elm (Ulmus rubra)
Violet family:
Dog Violet (Viola conspersa)
Violet (Viola incognita)