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Genus Elodea
- submerged freshwater perennials
Genus Egeria
- small genus of dioecious tropical aquatic plants
Genus Potamogeton
- a large genus of aquatic herbs found in quiet waters in temperate regions; leaves usually float on the water
Genus Groenlandia
- a monocotyledonous genus of the family Potamogetonaceae
Genus Triglochin
- perennial or annual bog or marsh plants; includes arrow grass
Genus Zannichellia
- horned pondweed: completely submerged herbs; in some classifications included in Potamogetonaceae
Genus Zostera
- (or in some classifications family Zosteraceae) small genus of widely distributed marine plants
Genus Rosa
- large genus of erect or climbing prickly shrubs including roses
Genus Agrimonia
- genus of herbs found chiefly in north temperate regions having pinnate leaves and yellow flowers followed by bristly fruit