| Name | Echinocereus polyacanthus Engelmann |
| Authorship | Engelmann |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Echinocereus |
| GUID | urn:lsid:ipni.org:names:87985-2 |
| Holdings | 17 Specimens held in the Harvard University Herbaria identified as Echinocereus polyacanthus Engelmann |
| Identification made in | [no date] (17) |