frog's lettuce


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Noun1.frog's lettuce - very similar to Potamogeton; of western Africa, Asia, and Europe
pondweed - any of several submerged or floating freshwater perennial aquatic weeds belonging to the family Potamogetonaceae
genus Groenlandia, Groenlandia - a monocotyledonous genus of the family Potamogetonaceae