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Introduced, Invasive, and Noxious Plants

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 Noxious 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 (I), 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 (I)
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), SPM (I)
ROMI3 Rorippa microphylla (Boenn. ex Rchb.) Hyl. ex Á. Löve & D. Löve onerow yellowcress PIB
NAOF Nasturtium officinale W.T. Aiton L48 (I), AK (I), PR (I), VI (I), CAN (I), SPM (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 (I)
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), SPM (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), AK (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)

 

†CodeNoxious Status
IB Invasive, banned
INB Invasive, not banned
PIB Potentially invasive, banned
PINB Potentially invasive, not banned

*CodeNative Status
I Introduced
N Native
W Waif

*CodeNative Status Jursdiction
None
L48 Lower 48 States
AK Alaska
HI Hawaii
PR Puerto Rico
VI Virgin Islands
CAN Canada
GL Greenland
SPM St. Pierre and Miquelon

Additional information about noxious plants in this state can be found at:

 

 
Time Generated: 10/01/2014 12:08 AM MDT