floating fern

English Thesaurus

1. small free-floating aquatic fern from the eastern United States to tropical America; naturalized in western and southern Europe (noun.plant)

hypernym	:	aquatic fern, water fern,
definition	:	ferns that grow in water (noun.plant)

member meronym	:	azolla, genus azolla,
definition	:	a genus of fern sometimes placed in its own family Azollaceae (noun.plant)

2. aquatic fern of tropical America often used in aquariums (noun.plant)

hypernym	:	aquatic fern, water fern,
definition	:	ferns that grow in water (noun.plant)

member meronym	:	ceratopteris, genus ceratopteris,
definition	:	water ferns (noun.plant)

3. pantropical aquatic fern (noun.plant)

hypernym	:	aquatic fern, water fern,
definition	:	ferns that grow in water (noun.plant)

member meronym	:	ceratopteris, genus ceratopteris,
definition	:	water ferns (noun.plant)