clover fern


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Noun1.clover fern - any of several water ferns of the genus Marsilea having four leafletsclover fern - any of several water ferns of the genus Marsilea having four leaflets
aquatic fern, water fern - ferns that grow in water
genus Marsilea, Marsilea - clover ferns
common nardoo, Marsilea drummondii, nardo, nardoo - Australian clover fern
Marsilea quadrifolia, water clover - water fern of Europe and Asia and the eastern United States distinguished by four leaflets resembling clover leaves
References in periodicals archive ?
Several species are restricted to aquatic habitats, including the endangered endemic water clover fern, Marsilea villosa and the rare lycophyte, Isoetes hawaiiensis (Isoetaceae).