| Collector | Madsen, J. E. |
| Number | 36679 |
| Collected with | |
| Country | Ecuador |
| Subpart | AZUAY |
| County | |
| Locality | Cuenca, 5 km on the road to Cañar. Semiarid area with eucalyptus trees, on stony E-facing slope. |
| Coordinates | 2° 52' S 78° 56' W |
| Minimum elevation (m) | 2500 |
| Maximum elevation (m) | 2500 |
| Start date | 1981/11/22 |
| End date | 1981/11/22 |
| Family | Onagraceae |
| Identification | Oenothera rosea L'HŽr. ex Ait. |
| Determined by | B. Ollgaard, 1983 |
| Identification qualifier | |
| Field notes | Herb, up to 30 cm tall. Petals rose pink. Anthers white. Stigma, red and quartered. |