Taxon  Report   3415 
Erioneuron pilosum  (Buckley) Nash
Hairy erioneuron,  Hairy woollygrass
Erioneuron pilosum
© 2013 Justy Leppert
More photos from
CalPhotos / Calflora
Erioneuron pilosum
© 2006 James M. Andre
Erioneuron pilosum
© 2015 Wynn Anderson
Erioneuron pilosum, a monocot, is a perennial grass that is native to California, is also found elsewhere in North America and beyond.
also called Tridens pilosus
CNPS Rare Plant Rank: 2B.3 (rare, threatened, or endangered in CA; common elsewhere).   8th Edition

Interactive Distribution Map

Observation Hotline
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point, line, or polygon

one or more occurrences
within a 7.5-minute quadrangle

Plant Characteristics
and Associations

Bloom Period
Erioneuron pilosum
© 2011 Duncan S. Bell
Family: POACEAE  
Genus: Erioneuron
Pinyon-Juniper Woodland
Distribution by County 

Add an Observation of  Erioneuron pilosum

Name Status:
Accepted by JEF + CNPS + PLANTS + JM93
Alternate Names:
(according to)

PLANTS: Uralepis pilosa
ICPN + CNPS + PLANTS: Tridens pilosus
More information about  Erioneuron pilosum
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on CalPhotos / Google Images
Photos on

Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation


Search the International Plants Names Index

Search (Flora of North America)

Search the Lady Bird Johnson Wildflower Center

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: Aug 19, 2018).

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