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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.

39 Records


Subject Name Scientific Name Family Order
alligatorweed Alternanthera philoxeroides (Mart.) Griseb. Amaranthaceae Caryophyllales
giant salvinia Salvinia molesta D. S. Mitchell Salviniaceae Hydropteridales
Brazilian egeria Egeria densa Planch. Hydrocharitaceae Hydrocharitales
waterhyacinth Eichhornia crassipes (Mart.) Solms Pontederiaceae Liliales
hydrilla Hydrilla verticillata (L. f.) Royle Hydrocharitaceae Hydrocharitales
parrotfeather Myriophyllum aquaticum (Vell.) Verdc. Haloragaceae Haloragales
Eurasian watermilfoil Myriophyllum spicatum Linnaeus Haloragaceae Haloragales
brittleleaf naiad Najas minor All. Najadaceae Najadales
waterlettuce Pistia stratiotes L. Araceae Arales
water-chestnut Trapa natans L. Trapaceae Myrtales
arrowhead Sagittaria sagittifolia Linnaeus Alismataceae Alismatales
sessile joyweed Alternanthera sessilis (L.) R. Br. ex DC. Amaranthaceae Caryophyllales
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
pinnate mosquitofern 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
curlyleaf pondweed Potamogeton crispus L. Potamogetonaceae Najadales
Senegal tea plant Gymnocoronis spilanthoides (D.Don) DC. (1838) Asteraceae Asterales
European waterstarwort Callitriche stagnalis Scop. Callitrichaceae Callitrichales
watermoss Salvinia spp. Séguier Salviniaceae Hydropteridales
crested floating heart Nymphoides cristata (Roxb.) O. Ktze. Menyanthaceae Solanales
fragrant waterlily Nymphaea odorata Ait. Nymphaeaceae Nymphaeales
variable watermilfoil Myriophyllum heterophyllum Michx. Haloragaceae Haloragales
yellow floatingheart Nymphoides peltata (Gmel.) Kuntze Menyanthaceae Solanales
American frogbit Limnobium spongia (Bosc) L.C. Rich. ex Steud. Hydrocharitaceae Hydrocharitales
common duckweed Lemna minor L. Lemnaceae Arales
waterpoppy Hydrocleys nymphoides (Humb. & Bonpl. ex Willd.) Buch. Limnocharitaceae Alismatales
roundleaf toothcup Rotala rotundifolia (Buch.-Ham. ex Roxb.) Koehne Lythraceae Myrtales
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
Australian water-clover Marsilea mutica Mett. Marsileaceae Hydropteridales


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Invasive.org: Center for Invasive Species and Ecosystem Health
The University of Georgia - Warnell School of Forestry and Natural Resources and
College of Agricultural and Environmental Sciences - Dept. of Entomology
Last updated on Thursday, March 05, 2009 at 08:37 PM