Calflora
Taxon  Report   5929    
Opuntia basilaris  Engelm. & J. M. Bigelow  var. treleasei  (J. M. Coult.) Toumey
Bakersfield cactus,  Trelease's beavertail pricklypear
Opuntia basilaris var. treleasei
© 2009 Howard Orman Clark, Jr.
Photos from
CalPhotos / Calflora
Opuntia basilaris var. treleasei
© 2010 Neal Kramer
Opuntia basilaris var. treleasei
© 2010 Neal Kramer
Opuntia basilaris var. treleasei, a dicot, is a shrub (stem succulent) that is native to California, is endemic (limited) to California.
also called Opuntia treleasei
CNPS Rare Plant Rank: 1B.1 (rare, threatened, or endangered in CA and elsewhere).   8th Edition

It is listed by the State of California as Endangered and by the Federal Government as 'Endangered '.

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
Opuntia basilaris var. treleasei
© 2010 Neal Kramer
Family: CACTACEAE  
Genus: Opuntia
Parent: Opuntia basilaris
Communities: Shadscale Scrub, Valley Grassland
Name Status:
Accepted by JEF + CNPS + PLANTS

Alternate Names:
ICPN + CNPS + PLANTS: Opuntia treleasei
More information about  Opuntia basilaris var. treleasei
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on PlantID.net   /   Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation

USDA PLANTS Profile (OPBAT)

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 19, 2018).