Cabomba caroliniana
Gray. (Carolina fanwort)
Myriophyllum aquaticum
(Vell.) Verdc. (parrot feather)
Myriophyllum heterophyllum
Michx.
(two-leaf water milfoil)
Myriophyllum spicatum
L. (Eurasian water milfoil)
Egeria densa
Planch. (Brazilian waterweed)
Hydrilla verticillata
L.f. Royle (hydrilla)
Najas minor
All. (brittle naiad)
Potamogeton crispus
L. (curly pondweed)
Sagittaria montevidensis subsp. montevidensis
Cham. & Schlecht (long-lobed arrowhead)
Alternanthera philoxeroides
(Mart.) Griseb. (alligatorweed)
Nasturtium officinale
Ait. f. (watercress)
Rorippa amphibia
(L.) Bess. (amphibious yellowcress)
Butomus umbellatus
L. (flowering rush)
Callitriche stagnalis
Scop. (pond water-starwort)
Murdannia keisak
(Hassk.) Hand.-Maz.
(marsh dewflower)
Iris pseudacorus
L. (yellow iris)
Lythrum salicaria
L. (purple loosestrife)
Marsilea mutica
Mett. (nardoo)
Marsilea quadrifolia
L. (European water-clover)
Nelumbo nucifera
Gaertn.
(sacred lotus)
Ludwigia hexapetala
(Hook. & Arn.) Zardini, Gu & Raven (Uruguay seedbox)
Glyceria maxima
(Hartman) Holmb. (reed mannagrass)
Glossostigma diandrum
(L.) Kuntze (mud mat)
Veronica beccabunga
L. (European brooklime)
Pistia stratiotes
L. (water lettuce)
Hydrocharis morsus-ranae
L. (European frogbit)
Landoltia (Spirodela) punctata
(G. Mey.) Les & D.J. Crawford (dotted duckweed)
Nymphoides peltata
(Gmel.) Kuntze (yellow floatingheart)
Eichhornia crassipes
(Mart.) Solms (water hyacinth)
Trapa natans
L. (water chestnut)
U.S. Department of the Interior
U.S. Geological Survey
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