- pondweed - any of several submerged or floating freshwater perennial aquatic weeds belonging to the family Potamogetonaceae
--1 is a kind of aquatic plant, water plant, hydrophyte, hydrophytic plant
--1 is a member of Potamogetonaceae, family Potamogetonaceae, pondweed family
--1 has particulars:- Elodea, genus Elodea, pondweed, ditchmoss - submerged freshwater perennials
--2 is a kind of monocot genus, liliopsid genus
--2 is a member of
--2 has members: waterweedHydrocharitaceae, family Hydrocharitaceae, Hydrocharidaceae, family Hydrocharidaceae, frogbit family, frog's-bit family - Elodea, genus Elodea, pondweed, ditchmoss - submerged freshwater perennials