Taxon  Report   3415    
Erioneuron pilosum  (Buckley) Nash
Hairy erioneuron,  Hairy woollygrass
Erioneuron pilosum
© 2011 Duncan S. Bell
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
(observation details + photos)

point, line, or polygon

one or more occurrences
within a 7.5-minute quadrangle

Plant Characteristics
and Associations

Bloom Period
Erioneuron pilosum
© 2013 Justy Leppert
Family: POACEAE  
Genus: Erioneuron
Communities: Pinyon-Juniper Woodland
Name Status:
Accepted by JEF + CNPS + PLANTS

Alternate Names:
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   /   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: Nov 18, 2018).

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