Publication: Icon. Filic. 2: plate 159. 1830.

Origin: Native

Herbarium search: CPNWH

Notes: FNA2: "A number of segregate species have been named and recognized in regional floras in North America: Marsilea mucronata A. Braun (less hairy, found east of Rocky Mountains), M . uncinata (glabrous, sporocarp stalks long, distal tooth of sporocarp hooked, south central United States), M . tenuifolia (pinnae very narrow, central Texas), and M . fournieri (small plants and pinnae, southwest). The features upon which these species are based intergrade into one another. The species are therefore best treated as conspecific with M . vestita (D. M. Johnson 1986).

Putative hybrids between Marsilea macropoda and this species are discussed under the former."

Last updated 10/7/2020 by David Giblin.