family of flowering plants having a single cotyledon (embryonic leaf) in the seed

Araceae; Lemnaceae

any small or minute aquatic plant of the family Lemnaceae that float on or near the surface of shallow ponds

minute aquatic herbs floating on or below the water surface of still water consisting of a leaflike frond or plant body and single root

minute aquatic herbs floating on the water surface consisting of a shiny leaflike frond and 2-21 roots

minute rootless aquatic herbs having globular fronds floating on or near the water surface and bearing one flower per frond

Araceae; Lemnaceae

any small or minute aquatic plant of the family Lemnaceae that float on or near the surface of shallow ponds

minute aquatic herbs floating on or below the water surface of still water consisting of a leaflike frond or plant body and single root

minute aquatic herbs floating on the water surface consisting of a shiny leaflike frond and 2-21 roots

minute rootless aquatic herbs having globular fronds floating on or near the water surface and bearing one flower per frond