| Collector | Nabe-Nielsen, J. |
| Number | 637 |
| Collected with | Skov, C. |
| Country | Ecuador |
| Subpart | NAPO |
| County | |
| Locality | The Yasuní National Park. Bottomland area in the Primate Project Area, near the Capiron oil well (Machaerium transect 2). |
| Coordinates | 0° 38' S 76° 27' W |
| Minimum elevation (m) | 225 |
| Maximum elevation (m) | 225 |
| Start date | 1998/08/19 |
| End date | 1998/08/19 |
| Family | Fabaceae |
| Identification | Machaerium kegelii Meisn. |
| Determined by | G. Villa |
| Identification qualifier | |
| Field notes | Self supporting liana, about 2 m tall. Densely covered with paired spines on stem and branches. |