Taxon  Report   180    
Allium bisceptrum  S. Watson  var. bisceptrum   
(no longer an active name)
Twin crest onion,  Twincrest onion
Allium bisceptrum var. bisceptrum
© 2005 Steve Matson
Photos from
CalPhotos / Calflora
Allium bisceptrum var. bisceptrum, a monocot, is a perennial herb (bulb) that is native to California, is also found outside of California, but is confined to western North America.

Interactive Distribution Map

Observation Hotline
(observation details)

point, line, or polygon

Plant Characteristics
and Associations

Bloom Period
Allium bisceptrum var. bisceptrum
© 1994 Gary A. Monroe
Genus: Allium
Parent: Allium bisceptrum
Communities: Yellow Pine Forest, Red Fir Forest, Lodgepole Forest, wetland-riparian

Toxicity: MINOR

Arid West: Occurs usually in non wetlands, occasionally in wetlands
Mountains, Valleys and Coast: Equally likely to occur in wetlands and non wetlands

Habitat: streambanks, meadows

Name Status:
Accepted by PLANTS

ICPN accepted name:
Allium bisceptrum

NOTE: Allium bisceptrum var. bisceptrum is no longer an active name.
More information about  Allium bisceptrum var. bisceptrum
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on Google Images

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).