Alternanthera philoxeroides

Sagittaria sagittifolia

Also known as:  Hawaii arrowhead

Utricularia gibba

Also known as:  humped bladderwort

Menyanthes trifoliata

Also known as:  buckbean

Schoenoplectus californicus

Elodea canadensis

Aponogeton distachyus

Also known as:  water hawthorn

Caulerpa taxifolia

Potamogeton perfoliatus

Nymphaea alba

Also known as:  European white water lily

Alisma plantago-aquatica

Also known as:  mad dog weed

Potamogeton crispus

Also known as:  curly pondweed,  Flat-stem pondweed

Sagittaria subulata

Also known as:  awl-leaf arrowhead

Vallisneria gigantea

Vallisneria spiralis

Egeria densa

Also known as:  oxygen weed

Alocasia brisbanensis

Also known as:  aroid lily,  A. macrorrhiza

Myriophyllum spicatum

Azolla pinnata

Also known as:  water velvet

Nymphoides peltata

Also known as:  entire marshwort,  yellow floating heart

Sagittaria montevidensis

Also known as:  arrowhead

Arundo donax

Typha latifolia

Also known as:  broadleaf cattail,  common cattail,  giant reedmace

Lycopus europaeus

Also known as:  bugleweed

Ceratophyllum demersum

Hydrilla verticillata

Lagarosiphon major

Also known as:  oxygen weed

Saururus cernuus

Also known as:  swamp lily,  mouse's ear

Zizania latifolia

Nymphoides geminata

Also known as:  entire marshwort

Paspalum distichum

Also known as:  water couch ,  knot grass

Ageratina adenophora

Nymphaea mexicana

Also known as:  banana waterlily

Ageratina riparia

Marsilea mutica

Also known as:  water clover

Myriophyllum aquaticum

Phragmites australis

Also known as:  common reed

Lythrum salicaria

Also known as:  bouquet-violet

Glyceria maxima

Also known as:  Poa aquatica

Osmunda regalis

Sagittaria platyphylla

Also known as:  delta arrowhead

Salvinia molesta

Also known as:  kariba weed

Najas marina

Gymnocoronis spilanthoides

Also known as:  temple plant

Typha domingensis

Najas guadalupensis

Spartina spp.

Also known as:  cord grass,  salt grass,  S. alterniflora,  S. anglica,  S. x townsendii

Eichornia crassipes

Pistia stratiotes

Also known as:  tropical duckweed

Hydrocleys nymphoides

Ludwigia peploides ssp. montevidensis

Also known as:  primrose willow

Stratiotes aloides

Also known as:  crabs claw

Iris pseudacorus

Also known as:  yellow iris

Nuphar lutea

Also known as:  yellow pond-lily,  spatterdock,  cow lily,  brandy bottle