| Name | Peniocereus greggii var. transmontanus (Engelmann) Backeberg |
| Authorship | (Engelmann) Backeberg |
| Rank | Variety |
| Placed in | Peniocereus greggii (Engelmann) Britton & Rose |
| Citation | 1960 Cactaceae (Backeberg) 4: 1945 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Peniocereus greggii var. transmontanus (Engelmann) Backeberg |
| Identification made in | [no date] (3) |
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