Meaning of LIMNODIUM SPONGIA

WordNet Dictionary
	Definition:		[n]  American plant with roundish heart-shaped or kidney-shaped leaves; usually rooted in muddy bottoms of ponds and ditches
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	Synonyms:		American frogbit
	See Also:		aquatic plant, genus Limnobium, hydrophyte, hydrophytic plant, Limnobium, water plant