| Name | Echinocereus enneacanthus var. enneacanthus |
| Authorship | |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Echinocereus enneacanthus Engelmann |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Echinocereus enneacanthus var. enneacanthus |
| Identification made in | [no date] (1), 1980 (1) |