| Name | Opuntia polyacantha var. watsonii Coulter |
| Authorship | Coulter |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Opuntia polyacantha Haworth |
| GUID | urn:lsid:ipni.org:names:281661-2 |
| Citation | 1896 Contr. U.S. Natl. Herb. 3: 437 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Opuntia polyacantha var. watsonii Coulter |
| Identification made in | [no date] (1) |
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