Regnellidium
Regnellidium is a monotypic genus of ferns of family Marsileaceae.
The single living species, Regnellidium diphyllum, the two-leaf waterfern, is native to southeastern Brazil and adjacent regions of Argentina. It resembles its relatives from the genus Marsilea, but has 2-lobed leaves (rather than 4). This fern is sometimes grown in aquaria.
1 branches of this genus, most-observed first
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Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
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Every page naming Regnellidium in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 446837.