| Name | Cleistocactus sepium var. ventimigliae (Riccobono) J. E. Madsen |
| Authorship | (Riccobono) J. E. Madsen |
| Rank | Variety |
| Placed in | Cleistocactus sepium (Kunth) F. A. C. Weber |
| Citation | 1989 Fl. Ecuador 35: 22 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Cleistocactus sepium var. ventimigliae (Riccobono) J. E. Madsen |
| Identification made in | [no date] (1) |