| Collector | Holm-Nielsen, L. B. |
| Number | 21250 |
| Collected with | Jaramillo, J. & Brandbyge, J. |
| Country | Ecuador |
| Subpart | NAPO |
| County | |
| Locality | Río Cuyabeno. Near Puerto Montúfar. Riverside forest. Rain forest on low ridges. |
| Coordinates | 0° 6' S 76° 1' W |
| Minimum elevation (m) | 230 |
| Maximum elevation (m) | 230 |
| Start date | 1980/02/17 |
| End date | 1980/02/17 |
| Family | Rubiaceae |
| Identification | Duroia hirsuta K.Schum. |
| Determined by | B. Ollgaard, 1983. |
| Identification qualifier | |
| Field notes | 5 m. Fruits green with light-brown tomentum. |