| Collector | Lawesson, J. E. |
| Number | 39579 |
| Collected with | Laessoe, T. & Jorgensen, P. M. |
| Country | Ecuador |
| Subpart | NAPO |
| County | |
| Locality | Village of Añangu, north side of Río Napo. Trail from village to Laguna. Tropical rain forest. |
| Coordinates | 0° 31' S 76° 23' W |
| Minimum elevation (m) | 260 |
| Maximum elevation (m) | 260 |
| Start date | 1983/05/02 |
| End date | 1983/05/02 |
| Family | Meliaceae |
| Identification | Guarea pterorhachis Harms |
| Determined by | T.D.Pennington,1985. |
| Identification qualifier | |
| Field notes | Tree 15 m high. Flowers white. Local name: "Sangre de Galina", the wood is used if no other and better is available. |