Federal and State Listed Noxious Weeds

The federal and state noxious weed programs are designed to prevent the introduction of nonindigenous invasive plants. A noxious weed is a plant species that has been designated as damaging to agricultural or horticultural crops, natural habitats or ecosystems, humans, or livestock. The United States Department of Agriculture requires permits for the importation and/or interstate movement of plants listed as noxious weeds by the federal government. The Mississippi Department of Agriculture and Commerce prohibits the sale, distribution, and movement of plants listed on the State of Mississippi Noxious Weed List unless a special permit has been issued for research purposes.

Federal Aquatic Noxious Weed List

Common Name	Scientific Name
Ambulia	Limnophila sessiliflora
Anchored water hyacinth	Pontederia azurea
Arrowhead	Sagittaria sagittifolia
Arrowleaf false pickerelweed	Monochoria hastata
Chinese water spinach	Ipomoea aquatica
Duck-lettuce	Ottelia alismoides
Exotic bur-reed	Sparganium erectum
Giant salvinia (4 species)	Salvinia auriculata Salvinia biloba Salvinia herzogii Salvinia molesta
Heartshape false pickerelweed	Monochoria vaginalis
Hydrilla	Hydrilla verticillata
Killer algae	Caulerpa taxifolia
Melaleuca	Melaleuca quinquenervia
Miramar weed	Hygrophila polysperma
Mosquito fern	Azolla pinnata
Oxygen weed	Lagarosiphon major
Wetland nightshade	Solanum tampicense

Mississippi State Aquatic Noxious Weed List

Common Name	Scientific Name
Giant salvinia	Salvinia molesta
Hydrilla	Hydrilla verticillata
Torpedograss	Panicum repens

Other Aquatic Species of Concern in Mississippi

Common Name	Scientific Name
Water hyacinth	Pontederia crassipes
Alligator weed	Alternanthera philoxeroides
Egeria	Egeria densa
Eurasian watermilfoil	Myriophyllum spicatum
Water lettuce	Pistia stratiotes
Crested floating heart	Nymphoides cristata
Brittle naiad	Najas minor
Common salvinia	Salvinia minima
Cuban bulrush	Oxycaryum cubense