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Invasive.org - Center for Invasive Species and Ecosystem Health

Invasive and Exotic Aquatic Plants

The following species have been listed on an invasive species list or noxious weed law in North America. For more information on each species, including the listing sources, images, and publication links, click on the species.

72 Records


Subject Name Scientific Name Family Order
alligatorweed Alternanthera philoxeroides (Mart.) Griseb. Amaranthaceae Caryophyllales
giant salvinia Salvinia molesta D. S. Mitchell Salviniaceae Hydropteridales
Brazilian waterweed Egeria densa Planch. Hydrocharitaceae Hydrocharitales
common water hyacinth Eichhornia crassipes (Mart.) Solms Pontederiaceae Liliales
hydrilla Hydrilla verticillata (L. f.) Royle Hydrocharitaceae Hydrocharitales
purple loosestrife Lythrum salicaria L. Lythraceae Myrtales
parrotfeather Myriophyllum aquaticum (Vell.) Verdc. Haloragaceae Haloragales
Eurasian water-milfoil Myriophyllum spicatum L. Haloragaceae Haloragales
brittleleaf naiad Najas minor All. Najadaceae Najadales
torpedograss Panicum repens L. Poaceae Cyperales
common reed Phragmites australis (Cavanilles) Trinius ex Steudel Poaceae Cyperales
water lettuce Pistia stratiotes L. Araceae Arales
European water chestnut Trapa natans L. Trapaceae Myrtales
water fern Salvinia minima Baker Salviniaceae Hydropteridales
monochoria Monochoria vaginalis (Burm. f.) K. Presl ex Kunth Pontederiaceae Liliales
arrowleaved monochoria Monochoria hastata (L.) Solms Pontederiaceae Liliales
arrowhead Sagittaria sagittifolia Linnaeus Alismataceae Alismatales
sessile joyweed Alternanthera sessilis (L.) R. Br. ex DC. Amaranthaceae Caryophyllales
miramar weed Hygrophila polysperma (Roxb.) T. Anders. Acanthaceae Scrophulariales
branched burreed Sparganium erectum L. Sparganiaceae Typhales
duck-lettuce Ottelia alismoides (Linnaeus) Pers. Hydrocharitaceae Hydrocharitales
lobed salvinia Salvinia biloba Raddi Salviniaceae Hydropteridales
eared salvinia Salvinia auriculata Aublet Salviniaceae Hydropteridales
Herzog salvinia Salvinia herzogii de la Sota Salviniaceae Hydropteridales
feathered mosquito-fern Azolla pinnata R. Brown Azollaceae Hydropteridales
oxygen weed Lagarosiphon major (Ridley) Moss Hydrocharitaceae Hydrocharitales
anchored waterhyacinth Eichhornia azurea (Swartz) Kunth Pontederiaceae Liliales
Mediterranean clone of caulerpa Caulerpa taxifolia (Vahl) C. Agardth Caulerpaceae Caulerpales
flowering-rush Butomus umbellatus L. Butomaceae Alismatales
Carolina fanwort Cabomba caroliniana A. Gray Cabombaceae Nymphaeales
swamp morningglory Ipomoea aquatica Forssk. Convolvulaceae Solanales
yellow iris Iris pseudacorus L. Iridaceae Liliales
creeping waterprimrose Ludwigia peploides (Kunth) Raven Onagraceae Myrtales
reed canarygrass Phalaris arundinacea L. Poaceae Cyperales
curly-leaved pondweed Potamogeton crispus L. Potamogetonaceae Najadales
water soldier Stratiotes aloides L. Hydrocharitaceae Hydrocharitales
horn nut Trapa bicornis Osbeck Trapaceae Myrtales
singhara nut Trapa natans bispinosa (Roxb.) Makino Trapaceae Myrtales
caltrop Trapa natans natans L. Trapaceae Myrtales
Senegal tea plant Gymnocoronis spilanthoides (D.Don) DC. (1838) Asteraceae Asterales
deeprooted sedge Cyperus entrerianus Boeckl. Cyperaceae Cyperales
European waterstarwort Callitriche stagnalis Scop. Callitrichaceae Callitrichales
giant chickweed Myosoton aquaticum (L.) Moench Caryophyllaceae Caryophyllales
narrow-leaved cattail Typha angustifolia L. Typhaceae Typhales
watermoss Salvinia spp. S├ęguier Salviniaceae Hydropteridales
crested floating heart Nymphoides cristata (Roxb.) O. Ktze. Menyanthaceae Solanales
hybrid cattail Typha x glauca Godr. [angustifolia x latifolia] Typhaceae Typhales
golden algae Prymnesium parvum Carter Prymnesiaceae Prymnesiales
fragrant waterlily Nymphaea odorata Ait. Nymphaeaceae Nymphaeales
European frog-bit Hydrocharis morsus-ranae L. Hydrocharitaceae Hydrocharitales
European water-clover Marsilea quadrifolia L. Marsileaceae Hydropteridales
twoleaf watermilfoil Myriophyllum heterophyllum Michx. Haloragaceae Haloragales
yellow floating heart Nymphoides peltata (S.G. Gmel.) Kuntze Menyanthaceae Solanales
American frogbit Limnobium spongia (Bosc) L.C. Rich. ex Steud. Hydrocharitaceae Hydrocharitales
Asian kelp Undaria pinnatifida (Harvey) Suringar Alariaceae Laminariales
common duckweed Lemna minor L. Lemnaceae Arales
amphibious yellowcress Rorippa amphibia (L.) Besser Brassicaceae Capparales
watercress Nasturtium officinale R. Brown Brassicaceae Capparales
waterpoppy Hydrocleys nymphoides (Humb. & Bonpl. ex Willd.) Buch. Limnocharitaceae Alismatales
roundleaf toothcup Rotala rotundifolia (Buch.-Ham. ex Roxb.) Koehne Lythraceae Myrtales
cattail Typha spp. L. Typhaceae Typhales
water chestnut Trapa spp. L. Trapaceae Myrtales
rock snot Didymosphenia geminata (Lyngbye) M. Schmidt Dennstaedtiaceae Polypodiales
American lotus Nelumbo lutea Willd. Nelumbonaceae Nymphaeales
watersprite Ceratopteris thalictroides (L.) Brongn. Parkeriaceae Polypodiales
Cuban bulrush Oxycaryum cubense (Poepp. & Kunth) Lye Cyperaceae Cyperales
European lake sedge Carex acutiformis Ehrh. Cyperaceae Cyperales
dotted duckmeat Landoltia punctata (G.F.W. Mey.) D.H. Les & D.J. Crawford Lemnaceae Arales
rough mannagrass Glyceria maxima (Hartman) Holmb. Poaceae Cyperales
Australian water-clover Marsilea mutica Mett. Marsileaceae Hydropteridales
European common reed Phragmites australis subsp. australis (Cavanilles) Trinius ex Steudel Poaceae Cyperales
Eurasian and northern watermilfoil hybrid Myriophyllum spicatum x sibiricum Haloragaceae Haloragales


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