| Name | Opuntia monacantha Haworth |
| Authorship | Haworth |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Opuntia |
| GUID | urn:lsid:ipni.org:names:136827-1 |
| Holdings | 7 Specimens held in the Harvard University Herbaria identified as Opuntia monacantha Haworth |
| Identification made in | [no date] (7) |