'Limnobium Spongia' definitions:

Definition of 'Limnobium Spongia'

From: GCIDE

frogbit \frog"bit`\, frog's-bit \frog's-bit\, n. (Bot.) (a) A European plant (Hydrocharis Morsus-ran[ae]), floating on still water and propagating itself by runners. It has roundish heart-shaped leaves and small white flowers. (b) An American plant (Limnobium Spongia), with similar habits. [1913 Webster]