| Name | Opuntia macrorhiza Engelmann |
| Authorship | Engelmann |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Opuntia |
| GUID | urn:lsid:ipni.org:names:136768-1 |
| Citation | 1850 Boston J. Nat. Hist. 6: 206 |
| Holdings | 33 Specimens held in the Harvard University Herbaria identified as Opuntia macrorhiza Engelmann |
| Identification made in | [no date] (28), 1961 (2), 1965 (1), 2008 (2) |
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