pondweed

1. Any of several submerged or floating freshwater perennial aquatic weeds belonging to the family Potamogetonaceae (synset 112636471)
   is a type of: aquatic plant, hydrophyte, hydrophytic plant, water plant - a plant that grows partly or wholly in water whether rooted in the mud, as a lotus, or floating without anchorage, as the water hyacinth
   subtypes:

   • curled leaf pondweed, curly pondweed, potamogeton crispus - European herb naturalized in the eastern United States and California
   • potamogeton gramineous, variously-leaved pondweed - of Europe (except the Mediterranean area) and the northern United States
   • loddon pondweed, potamogeton americanus, potamogeton nodosus - pondweed with floating leaves; of northern United States and Europe
   • frog's lettuce - very similar to Potamogeton; of western Africa, Asia, and Europe
   • horned pondweed, zannichellia palustris - found in still or slow-moving fresh or brackish water; useful to oxygenate cool water ponds and aquaria
   belongs to: family potamogetonaceae, pondweed family, potamogetonaceae - plants that grow in ponds and slow streams; sometimes includes family Zosteraceae
2. Submerged freshwater perennials (synset 112635078)
   is a type of: liliopsid genus, monocot genus - genus of flowering plants having a single cotyledon (embryonic leaf) in the seed
   member holonym: waterweed - a weedy aquatic plant of genus Elodea
   belongs to: family hydrocharidaceae, family hydrocharitaceae, frog's-bit family, frogbit family, hydrocharidaceae, hydrocharitaceae - simple nearly stemless freshwater aquatic plants; widely distributed
   same as: ditchmoss, elodea, genus elodea

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