Taxon  Report   5371    
Marsilea oligospora  Goodd.
Nelson's pepperwort,  Pacific waterclover
Marsilea oligospora
© 2003 Steve Matson
Photos from
CalPhotos / Calflora
Marsilea oligospora
© 2005 Steve Matson
Marsilea oligospora
© 2005 Steve Matson
Marsilea oligospora, a pteridophyte, is a fern that is native to California, is also found outside of California, but is confined to western North America.

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Observation Hotline
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point, line, or polygon

Plant Characteristics
and Associations
Marsilea oligospora
© 2005 Steve Matson
Genus: Marsilea
Communities: Freshwater Wetlands, wetland-riparian

Wetlands: Occurs in wetlands

Habitat: freshwater-marsh, vernal-pools

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
PLANTS: Marsilea vestiva var. oligospora
ICPN: Marsilea vestita var. oligospora
More information about  Marsilea oligospora
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on   /   Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation


Search the International Plants Names Index

Search (Flora of North America)

website references from Google

Suggested Citation
Calflora: Information on California plants for education, research and conservation,
with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria.
[web application]. 2018. Berkeley, California: The Calflora Database [a non-profit organization].
Available:   (Accessed: Dec 12, 2018).

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