bogmat


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Noun1.bogmat - having narrow flat sickle-shaped submerged fronds; North America
duckweed - any small or minute aquatic plant of the family Lemnaceae that float on or near the surface of shallow ponds
genus Wolffiella, Wolffiella - minute rootless aquatic herbs having flat fronds floating on or below the water surface and bearing 1-2 flowers per frond; America and Africa