NRCS Invasive Species Policy
Invasive Species Executive Order 13112
Connecticut State-listed Noxious Weeds
102 records returned
Click on an accepted name below to view its PLANTS Profile with more information, and
web links if available. Noxious weeds that are synonyms retain their noxious status, and are indented beneath the current PLANTS accepted name.
Connecticut Invasive Plants Council. 2004.
Connecticut invasive plant list
(20 April 2005).
Connecticut Invasive Plants Council.
Symbol |
Scientific Name |
Noxious Common Name |
State Weed Status† |
Native Status* |
ACGI |
Acer ginnala Maxim. |
Amur maple |
PINB |
L48 (I), CAN (I) |
ACPL |
Acer platanoides L. |
Norway maple |
INB |
L48 (I), CAN (I) |
ACPS |
Acer pseudoplatanus L. |
sycamore maple |
PIB |
L48 (I), CAN (I) |
AEPO |
Aegopodium podagraria L. |
goutweed |
IB |
L48 (I), CAN (I), SPM (I) |
AIAL |
Ailanthus altissima (Mill.) Swingle |
tree of heaven |
IB |
L48 (I), HI (I), CAN (I) |
ALPE4 |
Alliaria petiolata (M. Bieb.) Cavara & Grande |
garlic mustard |
IB |
L48 (I), AK (I), CAN (I) |
AMFR |
Amorpha fruticosa L. |
false indigo |
PIB |
L48 (N), CAN (N) |
AMBR7 |
Ampelopsis brevipedunculata (Maxim.) Trautv. |
porcelainberry |
PINB |
L48 (I) |
ARHI3 |
Arthraxon hispidus (Thunb.) Makino |
hairy jointgrass |
PIB |
L48 (I), HI (I) |
BASC5 |
Bassia scoparia (L.) A.J. Scott |
|
|
L48 (I), CAN (I) |
KOSC |
Kochia scoparia (L.) Schrad. |
common kochia |
PIB |
|
BETH |
Berberis thunbergii DC. |
Japanese barberry |
INB |
L48 (I), CAN (I) |
BEVU |
Berberis vulgaris L. |
common barberry |
IB |
L48 (I), CAN (I) |
BRTE |
Bromus tectorum L. |
drooping brome-grass |
PIB |
L48 (I), AK (I), HI (I), CAN (I), GL (I) |
BUUM |
Butomus umbellatus L. |
flowering rush |
PIB |
L48 (I), CAN (I) |
CACA |
Cabomba caroliniana A. Gray |
fanwort |
IB |
L48 (N), CAN (N) |
CAST |
Callitriche stagnalis Scop. |
pond water-starwort |
PIB |
L48 (I), CAN (I), SPM (I) |
CAIM |
Cardamine impatiens L. |
narrowleaf bittercress |
IB |
L48 (I), CAN (I) |
CAKO2 |
Carex kobomugi Ohwi |
Japanese sedge |
PIB |
L48 (I) |
CEOR7 |
Celastrus orbiculatus Thunb. |
oriental bittersweet |
IB |
L48 (I), CAN (I) |
CESTM |
Centaurea stoebe L. ssp. micranthos (Gugler) Hayek |
|
|
L48 (I), HI (I), CAN (I) |
CEBI2 |
Centaurea biebersteinii DC. |
spotted knapweed |
IB |
|
CIAR4 |
Cirsium arvense (L.) Scop. |
Canada thistle |
PIB |
L48 (I), AK (I), CAN (I), GL (I), SPM (I) |
CYLO11 |
Cynanchum louiseae Kartesz & Gandhi |
black swallow-wort |
IB |
L48 (I), CAN (I) |
CYRO8 |
Cynanchum rossicum (Kleopow) Borhidi |
pale swallow-wort |
IB |
L48 (I), CAN (I) |
DAST |
Datura stramonium L. |
jimsonweed |
PIB |
L48 (I), HI (I), PR (I), VI (I), CAN (I) |
EGDE |
Egeria densa Planch. |
Brazilian water-weed |
PIB |
L48 (I), HI (I), PR (I), CAN (W) |
EICR |
Eichhornia crassipes (Mart.) Solms |
common water-hyacinth |
PINB |
L48 (I), HI (I), PR (I), VI (I), CAN (W) |
ELAN |
Elaeagnus angustifolia L. |
Russian olive |
PIB |
L48 (I), CAN (I) |
ELUM |
Elaeagnus umbellata Thunb. |
autumn olive |
IB |
L48 (I), HI (I), CAN (I) |
ELCI |
Elsholtzia ciliata (Thunb.) Hyl. |
crested late-summer mint |
PIB |
L48 (I), CAN (I) |
EUAL13 |
Euonymus alatus (Thunb.) Siebold |
|
|
L48 (I), CAN (I) |
EUAL8 |
Euonymus alata (Thunb.) Siebold, orth. var. |
winged euonymus |
INB |
|
EUCY2 |
Euphorbia cyparissias L. |
cypress spurge |
PIB |
L48 (I), CAN (I) |
EUES |
Euphorbia esula L. |
leafy spurge |
IB |
L48 (I), CAN (I) |
FRAL4 |
Frangula alnus Mill. |
glossy buckthorn |
INB |
L48 (I), CAN (N) |
FRGR3 |
Froelichia gracilis (Hook.) Moq. |
slender snake cotton |
PIB |
L48 (N), CAN (I) |
GLHE2 |
Glechoma hederacea L. |
ground ivy |
PIB |
L48 (I), AK (I), CAN (I) |
GLMA3 |
Glyceria maxima (Hartm.) Holmb. |
reed mannagrass |
PIB |
L48 (I), CAN (I) |
HEMA17 |
Heracleum mantegazzianum Sommier & Levier |
giant hogweed |
PIB |
L48 (I), CAN (I) |
HEMA3 |
Hesperis matronalis L. |
dame's rocket |
IB |
L48 (I), AK (I), CAN (I) |
HUJA |
Humulus japonicus Siebold & Zucc. |
Japanese hops |
PIB |
L48 (I), CAN (I) |
HYVE3 |
Hydrilla verticillata (L. f.) Royle |
hydrilla |
IB |
L48 (I) |
IMGL |
Impatiens glandulifera Royle |
ornamental jewelweed |
PIB |
L48 (I), CAN (I) |
IRPS |
Iris pseudacorus L. |
yellow iris |
IB |
L48 (I), CAN (I) |
LELA2 |
Lepidium latifolium L. |
perennial pepperweed |
IB |
L48 (I), CAN (I) |
LIOB |
Ligustrum obtusifolium Siebold & Zucc. |
border privet |
PIB |
L48 (I) |
LIOV |
Ligustrum ovalifolium Hassk. |
California privet |
PINB |
L48 (I), PR (I), CAN (I) |
LIVU |
Ligustrum vulgare L. |
European privet |
PINB |
L48 (I), CAN (I) |
LOBE |
Lonicera ×bella Zabel [morrowii × tatarica] |
Bell's honeysuckle |
IB |
L48 (I), CAN (I) |
LOJA |
Lonicera japonica Thunb. |
Japanese honeysuckle |
IB |
L48 (I), HI (I), PR (I), CAN (I) |
LOMA6 |
Lonicera maackii (Rupr.) Herder |
Amur honeysuckle |
IB |
L48 (I), CAN (I) |
LOMO2 |
Lonicera morrowii A. Gray |
Morrow's honeysuckle |
IB |
L48 (I), CAN (I) |
LOTA |
Lonicera tatarica L. |
Tatarian honeysuckle |
PIB |
L48 (I), AK (I), CAN (I) |
LOXY |
Lonicera xylosteum L. |
dwarf honeysuckle |
PIB |
L48 (I), CAN (I) |
LYFL3 |
Lychnis flos-cuculi L. |
ragged robin |
PIB |
L48 (I), CAN (I) |
LYNU |
Lysimachia nummularia L. |
moneywort |
PINB |
L48 (I), CAN (I) |
LYVU |
Lysimachia vulgaris L. |
garden loosestrife |
PIB |
L48 (I), CAN (I) |
LYSA2 |
Lythrum salicaria L. |
purple loosestrife |
IB |
L48 (I), CAN (I), SPM (I) |
MAQU |
Marsilea quadrifolia L. |
European waterclover |
PIB |
L48 (I), CAN (N) |
MIVI |
Microstegium vimineum (Trin.) A. Camus |
Japanese stilt grass |
IB |
L48 (I), PR (I) |
MISI |
Miscanthus sinensis Andersson |
eulalia |
PINB |
L48 (I), CAN (I) |
MYSC |
Myosotis scorpioides L. |
forget-me-not |
IB |
L48 (I), AK (I), CAN (I), SPM (I) |
MYAQ2 |
Myriophyllum aquaticum (Vell.) Verdc. |
parrotfeather |
PIB |
L48 (I), HI (I), CAN (I) |
MYHE2 |
Myriophyllum heterophyllum Michx. |
variable-leaf watermilfoil |
IB |
L48 (N), CAN (N) |
MYSP2 |
Myriophyllum spicatum L. |
Eurasian watermilfoil |
IB |
L48 (I), AK (I), CAN (I) |
NAMI |
Najas minor All. |
brittle water-nymph |
PIB |
L48 (I), CAN (I) |
NAMI2 |
Nasturtium microphyllum Boenn. ex Rchb. |
|
|
L48 (I), AK (I), HI (I), CAN (I) |
ROMI3 |
Rorippa microphylla (Boenn. ex Rchb.) Hyl. ex A. Löve & D. Löve |
onerow yellowcress |
PIB |
|
NAOF |
Nasturtium officinale W.T. Aiton |
|
|
L48 (I), AK (I), PR (I), VI (I), CAN (I) |
RONA2 |
Rorippa nasturtium-aquaticum (L.) Hayek |
watercress |
PIB |
|
NELU |
Nelumbo lutea Willd. |
American water lotus |
PIB |
L48 (N), CAN (N) |
NYPE |
Nymphoides peltata (S.G. Gmel.) Kuntze |
yellow floating heart |
PIB |
L48 (I), CAN (I) |
ONAC |
Onopordum acanthium L. |
Scotch thistle |
PIB |
L48 (I), CAN (W) |
ORUM |
Ornithogalum umbellatum L. |
star-of-bethlehem |
PINB |
L48 (I), CAN (I) |
PATO2 |
Paulownia tomentosa (Thunb.) Siebold & Zucc. ex Steud. |
princess tree |
PIB |
L48 (I) |
PHAR3 |
Phalaris arundinacea L. |
reed canary grass |
INB |
L48 (N), AK (I?), CAN (N), SPM (N) |
PHAU7 |
Phragmites australis (Cav.) Trin. ex Steud. |
common reed |
IB |
L48 (N), HI (I), PR (N), CAN (N) |
PIST2 |
Pistia stratiotes L. |
water lettuce |
PIB |
L48 (N), HI (I), PR (N), VI (N) |
POCO |
Poa compressa L. |
Canada bluegrass |
PIB |
L48 (I), AK (I), HI (I), CAN (I), SPM (I) |
POCE4 |
Polygonum cespitosum Blume, nom. inq. |
|
|
L48 (I), CAN (I) |
POCA49 |
Polygonum caespitosum Blume, orth. var. |
bristled knotweed |
PIB |
|
POCU6 |
Polygonum cuspidatum Siebold & Zucc. |
Japanese knotweed |
IB |
L48 (I), AK (I), CAN (I) |
POPE10 |
Polygonum perfoliatum L. |
mile-a-minute vine |
IB |
L48 (I) |
POSA4 |
Polygonum sachalinense F. Schmidt ex Maxim. |
giant knotweed |
PIB |
L48 (I), AK (I), CAN (I) |
POAL7 |
Populus alba L. |
white poplar |
PIB |
L48 (I), CAN (I) |
POCR3 |
Potamogeton crispus L. |
crispy-leaved pondweed |
IB |
L48 (I), CAN (I) |
PUMO |
Pueraria montana (Lour.) Merr. |
kudzu |
PIB |
L48 (I), HI (I) |
RAFI |
Ranunculus ficaria L. |
fig buttercup |
IB |
L48 (I), CAN (I) |
RHCA3 |
Rhamnus cathartica L. |
common buckthorn |
IB |
L48 (I), CAN (I) |
ROPS |
Robinia pseudoacacia L. |
black locust |
INB |
L48 (N), CAN (I) |
ROMU |
Rosa multiflora Thunb. |
multiflora rose |
IB |
L48 (I), CAN (I) |
RORU |
Rosa rugosa Thunb. |
rugosa rose |
PINB |
L48 (I), CAN (I), SPM (I) |
RUPH |
Rubus phoenicolasius Maxim. |
wineberry |
PIB |
L48 (I) |
RUAC3 |
Rumex acetosella L. |
sheep sorrel |
PIB |
L48 (I), AK (I), HI (I), CAN (I), GL (I), SPM (I) |
SAMO5 |
Salvinia molesta Mitchell |
giant salvinia |
PIB |
L48 (I), HI (I) |
SEJA |
Senecio jacobaea L. |
tansy ragwort |
PIB |
L48 (I), CAN (I), SPM (I) |
SIPE2 |
Silphium perfoliatum L. |
cup plant |
PIB |
L48 (N), CAN (N) |
SODU |
Solanum dulcamara L. |
bittersweet nightshade |
PIB |
L48 (I), CAN (I) |
TRNA |
Trapa natans L. |
water chestnut |
IB |
L48 (I), CAN (I) |
TUFA |
Tussilago farfara L. |
coltsfoot |
IB |
L48 (I), CAN (I), SPM (I) |
VAOF |
Valeriana officinalis L. |
garden heliotrope |
PIB |
L48 (I), CAN (I) |
†Code | Weed Status |
IB |
Invasive, banned |
INB |
Invasive, not banned |
PIB |
Potentially invasive, banned |
PINB |
Potentially invasive, not banned |
*Code | Native Status |
I |
Introduced |
I? |
Probably Introduced |
N |
Native |
W |
Waif |
*Code | Native Location |
L48 |
Lower 48 States |
US02 |
Alaska |
US15 |
Hawaii |
US72 |
Puerto Rico |
US78 |
Virgin Islands |
CA |
Canada |
GL |
Greenland |
SB |
St. Pierre and Miquelon |
Additional information about noxious plants in this state can be found at:
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