Calflora
Taxon  Report   235    
Allium siskiyouense  Ownbey ex Traub
Siskiyou onion
Allium siskiyouense
© 2003 Dianne Fristrom
Photos from
CalPhotos / Calflora
Allium siskiyouense
© 2001 John Game
Allium siskiyouense, a monocot, is a perennial herb (bulb) that is native to California, Oregon.
CNPS Rare Plant Rank: 4.3 (limited distribution).   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 siskiyouense
© 2007 Norman Jensen
Family: ALLIACEAE  
Genus: Allium
Communities: Red Fir Forest, Yellow Pine Forest

Toxicity: MINOR

Serpentine affinity: 2.8; (strong indicator)

Name Status:
Accepted by JEF + CNPS + PLANTS

Alternate Names:
ICPN + PLANTS: Allium falcifolium var. demissum
More information about  Allium siskiyouense
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

USDA PLANTS Profile (ALSI2)

Search the International Plants Names Index

Search efloras.org (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: https://www.calflora.org/   (Accessed: Dec 17, 2018).