| Name | Opuntia ×occidentalis Engelmann & J. M. Bigelow |
| Authorship | Engelmann & J. M. Bigelow |
| Rank | Species |
| Placed in | Opuntia |
| Contains | Opuntia occidentalis var. littoralis (Engelmann) Parish ex Jepson |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Opuntia ×occidentalis Engelmann & J. M. Bigelow |
| Identification made in | 1961 (2) |
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