| Collector | Holm-Nielsen, L. B. |
| Number | 16668 |
| Collected with | |
| Country | Ecuador |
| Subpart | PICHINCHA |
| County | |
| Locality | Río Guayllabamba, 1 km from the Pan-American Highway upstream. Interandine dry thorn scrub with Schinus. |
| Coordinates | 0° 3' S 78° 23' W |
| Minimum elevation (m) | 2200 |
| Maximum elevation (m) | 2200 |
| Start date | 1979/04/04 |
| End date | 1979/04/04 |
| Family | Cactaceae |
| Identification | Cleistocactus sepium var. ventimigliae (Riccob.)J. E. Madsen |
| Determined by | J. E. Madsen, 1986 (AAU) |
| Identification qualifier | |
| Field notes | Scandent. Flowers orange red. |