Water plants are critical components of aquatic ecossytems. Green water plants and algae provide nutrients to aquatic systems and vital habitat structures for aquatic organisms.

Water plants are commonly divided into three main groups:

  • Submergent
  • Floating (Surface)
  • Emergent

Submergent plants
Arrowhead (Sagittaria latofolia)
Elodea (Anacharis canadensis)
Fanwort (Cabomba caroliniana)
Hornwort (Ceratophyllum demersum)
Parrotfeather (Myriophyllum aquaticum)
Sword plants (Echinodorus spp.)

Floating (Surface) plants
Azolla (Azolla caroliniana)
Bladderwort (Utricularia vulgaris)
Riccia (Riccia fluitans)
Salvinia (Salvinia rotundifolia)
Water chestnut (Trapa natans)
Water fern (Ceratopteris pteridoides)
Water lilies (Nymphaea spp.)
Water hyacinth (Eichhornia crassipes)
Water lettuce (Pistia stratiotes)
Watter platters (Victoria spp.)
Water poppy (Hydrocleys nymphoides)
Water snowflake (Nymphoides indica)

Emergent plants
Arrow arum (Peltandra virginica)
Cattails (Typha spp.)
Flowering rush (Butomus umbellatus)
Lotus (Nelumbo spp.)
Marsh marigold (Caltha palustris)
Pickerel rush (Pontederia cordata)
Sweet flag (Acorus spp.)
Water arum (Calla palustris)
Water irises (Iris pseudacorus, l. versicolor)