Taxon  Report   202    
Allium howellii  Eastw.  var. sanbenitense  (Traub) McNeal & T. D. Jacobsen
San benito onion
Allium howellii var. sanbenitense, a monocot, is a perennial herb (bulb) that is native to California, and is endemic (limited) to California.
California Rare Plant Rank: 1B.3 (rare, threatened, or endangered in CA and elsewhere).   CNPS Inventory
Observation Search
(71 records)
one or more occurrences
within a 7.5-minute quadrangle

Bloom Period
Genus: Allium
Parent: Allium howellii
Toxicity: MINOR

Serpentine affinity: 4; (broad endemic / strong indicator)

Name Status:
Accepted by JEF + CNPS + PLANTS

Alternate Names:
JEF + PLANTS: Allium howellii ssp. sanbenitense
PLANTS: Allium sanbenitense
More information about  Allium howellii var. sanbenitense
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora


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]. 2020. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: Feb 25, 2020).