Taxon  Report   239    
Allium tuolumnense  (Ownbey & Aase ex Traub) S.S. Denison & McNeal
Rawhide hill onion
Allium tuolumnense
© 2018 Ruth Ann Pearsons
Photos from
CalPhotos / Calflora
Allium tuolumnense
© 2016 Patrick Congdon
Allium tuolumnense
© 2012 Jean Pawek
Allium tuolumnense, a monocot, is a perennial herb (bulb) that is native to California, is endemic (limited) to California.
also called Allium sanbornii var. tuolumnense
California Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere).   8th Edition

Interactive Distribution Map

Observation Hotline
(observation details)

point, line, or polygon

one or more occurrences
within a 7.5-minute quadrangle

Plant Characteristics
and Associations

Bloom Period
Allium tuolumnense
© 2018 Ruth Ann Pearsons
Genus: Allium
Communities: Foothill Woodland

Toxicity: MINOR

Serpentine affinity: 6.2; (strict endemic)

Name Status:
Accepted by JEF + CNPS + PLANTS

Alternate Names:
ICPN + CNPS + PLANTS: Allium sanbornii var. tuolumnense
More information about  Allium tuolumnense
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]. 2019. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: Jan 21, 2019).