1. Submerged freshwater perennials
   "pondweed is commonly used in aquariums as an oxygenating plant";
   - Elodea, genus Elodea, ditchmoss
    
2. Any of several submerged or floating freshwater perennial aquatic weeds belonging to the family Potamogetonaceae
   "The lake's ecosystem depended on pondweed as a food source for waterfowl"

Derived forms: pondweeds

Type of: aquatic plant, hydrophyte, hydrophytic plant, liliopsid genus, monocot genus, water plant

Part of: family Hydrocharitaceae, family Potamogetonaceae, frogbit family, frog's-bit family, Hydrocharitaceae, pondweed family, Potamogetonaceae

Encyclopedia: Pondweed