| Name | Cleistocactus sepium (Kunth) F. A. C. Weber |
| Authorship | (Kunth) F. A. C. Weber |
| Rank | Species |
| Placed in | Cleistocactus Lemaire |
| Contains | Cleistocactus sepium var. morleyanus (Britton & Rose) J. E. Madsen Cleistocactus sepium var. ventimigliae (Riccobono) J. E. Madsen |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Cleistocactus sepium (Kunth) F. A. C. Weber |
| Identification made in | [no date] (5) |