| Name | Cephalocereus smithianus Britton & Rose |
| Authorship | Britton & Rose |
| Rank | Species |
| Placed in | Cephalocereus |
| Citation | 1920. (9 Sep 1920) Cactaceae (Britton & Rose) 2: 37, f. 46–47 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Cephalocereus smithianus Britton & Rose |
| Identification made in | [no date] (3) |