Taxon  Report   230 
Allium sanbornii  Alph. Wood  var. congdonii  Jeps.
Congdon's onion
Allium sanbornii var. congdonii
© 2012 Barry Breckling
More photos from
CalPhotos / Calflora
Allium sanbornii var. congdonii
© 2008 Steven Perry
Allium sanbornii var. congdonii
© 2012 Barry Breckling
Allium sanbornii var. congdonii, a monocot, is a perennial herb (bulb) that is native to California, is endemic (limited) to California.
CNPS Rare Plant Rank: 4.3 (limited distribution).   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
Allium sanbornii var. congdonii
© 2012 Lynn Robertson
Genus: Allium
Parent Record Allium sanbornii
Chaparral, Foothill Woodland
Toxicity: MINOR   [California Poison Control System]    
AFFINITY to serpentine soil:   5.6 (strict endemic)   [Safford et al 2005]
Distribution by County 

Add an Observation of  Allium sanbornii var. congdonii

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

ICPN + PLANTS: Allium intactum
PLANTS: Allium sanbornii ssp. intactum
More information about  Allium sanbornii var. congdonii
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: Sep 20, 2018).

The information on this page comes from diverse sources. None of the links are sponsored.