External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:175375-2
- Species Name
- Opuntia occidentalis Engelm. & J.M.Bigelow, Syn. Cact. U. S. 35 (1856).
- Publication
- Aliso. a series of papers on the native plants of California. [Title originally El Aliso]
- Collation
- 4: 94
- Family as entered in IPNI
- Cactaceae