pond·weed /ˈpɑndˌwid/
眼子菜
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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pondweed
n 1: any of several submerged or floating freshwater perennial
aquatic weeds belonging to the family Potamogetonaceae
2: submerged freshwater perennials [syn: Elodea, genus
Elodea, ditchmoss]