Opuntia ×occidentalis
Family: Cactaceae · Type: Shrub · Native
Opuntia ×occidentalis is a native California shrub in the Cactaceae family, recognized by hybrid with distinctive spine arrangement and flower color variation.
Western prickly pear is a native shrub found in southern California coastal areas and the western edge of the Peninsular Ranges in chaparral habitat at elevations of 7 to 400 meters. Flowering from March to May, this plant produces yellow to deep pink flowers that display vibrant yellow filaments. Growing as a sprawling to nearly erect shrub less than 1 meter tall, its branches have distinctive gray-green segments 19 to 35 centimeters long. Its areoles feature 3 to 6 spines, with the longest spines 2.5 to 5 centimeters long, including 1 to 2 yellow spines at the distal end and 2 to 4 shorter reflexed spines at the base. The fruit is a juicy, red-purple structure about 4.5 to 5 centimeters long, containing seeds 4 to 5.5 millimeters in size.
Identification and appearance
Key characters: 6 sympatric species; hybrid with distinctive spine arrangement and flower color variation
Habitat and range
Habitat: Chaparral
Elevation: 7-400 m
Bloom period
Opuntia ×occidentalis blooms Mar-May.
How to tell it apart
vs Cylindropuntia: Opuntia has flat paddle segments; Cylindropuntia has cylindrical stems with papery spine sheaths.; vs Echinocereus: Opuntia has flat pads; Echinocereus has cylindrical stems that branch into clusters.; vs Euphorbia: Opuntia has true spines from areoles on fleshy pads; Euphorbia has milky sap and no areoles.; vs Austrocylindropuntia: Opuntia has broad flat pads; Austrocylindropuntia has pencil-thin cylindrical stems.; vs Cephalocereus: Opuntia has flat jointed pads; Cephalocereus has tall unbranched columns with woolly hair.
Frequently asked questions
Is Opuntia ×occidentalis native to California?
Yes. Opuntia ×occidentalis is native to California (recorded as native).
When does Opuntia ×occidentalis bloom?
Opuntia ×occidentalis blooms Mar-May.
What plant family does Opuntia ×occidentalis belong to?
Opuntia ×occidentalis is in the Cactaceae family, genus Opuntia.
What habitat does Opuntia ×occidentalis grow in?
Opuntia ×occidentalis grows in Chaparral.
Related species
Other California species in the same genus, family, or bioregion.
Sources: Jepson eFlora · CalPhotos
Last updated 2026-09-30
Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Cal-IPC, and more.