| Name | Opuntia phaeacantha var. mojavensis (Engelm. & J. M. Bigelow) Fosberg |
| Authorship | (Engelm. & J. M. Bigelow) Fosberg |
| Rank | Variety |
| Placed in | Opuntia phaeacantha Engelmann |
| Citation | 1934 Bull. S. Calif. Acad. Sci. 33(2): 103 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Opuntia phaeacantha var. mojavensis (Engelm. & J. M. Bigelow) Fosberg |
| Identification made in | [no date] (2) |