- Potamogeton, genus Potamogeton - a large genus of aquatic herbs found in quiet waters in temperate regions; leaves usually float on the water
--1 is a kind of monocot genus, liliopsid genus
--1 is a member of Potamogetonaceae, family Potamogetonaceae, pondweed family
--1 has members:curleyleaf pondweed, curled pondweed, Potamogeton crispus; variously-leaved pondweed, Potamogeton gramineous; loddon pondweed, Potamogeton nodosus, Potamogeton americanus