| Collector | Holm-Nielsen, L. B. |
| Number | 6839 |
| Collected with | Jeppesen, S. & Lojtnant, B. & Ollgaard, B. |
| Country | Ecuador |
| Subpart | NAPO |
| County | |
| Locality | Between Cuyua and Papallacta, 10 km E of Papallacta on road to Baeza. Rocky slope along the road. |
| Coordinates | 0° 21' S 78° 1' W |
| Minimum elevation (m) | 2800 |
| Maximum elevation (m) | 2900 |
| Start date | 1973/06/05 |
| End date | 1973/06/05 |
| Family | Onagraceae |
| Identification | Epilobium denticulatum Ruiz & Pav. |
| Determined by | J. C. Solomon, 1980 |
| Identification qualifier | |
| Field notes | Very humid locality, flowers violet. |