Pond·weed n. Bot. Any aquatic plant of the genus Potamogeton, of which many species are found in ponds or slow-moving rivers.
Choke pondweed, an American water weed (Anarcharis Canadensis, syn. Elodea Canadensis.) See Anacharis.
Horned pondweed, the Zannichellia palustris, a slender, branching aquatic plant, having pointed nutlets.
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