Marsilea quadrifolia


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Noun1.Marsilea quadrifolia - water fern of Europe and Asia and the eastern United States distinguished by four leaflets resembling clover leavesMarsilea quadrifolia - water fern of Europe and Asia and the eastern United States distinguished by four leaflets resembling clover leaves
genus Marsilea, Marsilea - clover ferns
clover fern, pepperwort - any of several water ferns of the genus Marsilea having four leaflets