| Name | Cephalocereus senilis (Haworth) Pfeiffer |
| Authorship | (Haworth) Pfeiffer |
| Rank | Species |
| Placed in | Cephalocereus |
| Citation | 1838 Allg. Gartenzeitung [Otto & Dietrich] 6: 142 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Cephalocereus senilis (Haworth) Pfeiffer |
| Identification made in | [no date] (2) |