English > water fern: 1 sense > noun 1, plantMeaning | ferns that grow in water. |
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Synonym | aquatic fern |
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Narrower | clover fern, pepperwort | Any of several water ferns of the genus Marsilea having four leaflets |
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floating-moss, Salvinia rotundifolia, Salvinia auriculata | Free-floating aquatic ferns |
floating fern, water sprite, Ceratopteris pteridioides | aquatic fern of tropical America often used in aquariums |
floating fern, Ceratopteris thalictroides | pantropical aquatic fern |
mosquito fern, floating fern, Carolina pond fern, Azolla caroliniana | small free-floating aquatic fern from the eastern United States to tropical America |
pillwort, Pilularia globulifera | European water fern found around margins of bodies of water or in wet acid soil having small globose sporocarps |
regnellidium, Regnellidium diphyllum | small latex-containing aquatic fern of southern Brazil |
Broader | fern | Any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward |
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