| Collector | Madsen, J. E. |
| Number | 50407 |
| Collected with | |
| Country | Ecuador |
| Subpart | PICHINCHA |
| County | |
| Locality | Road Guayllabamba - Ibarra, km 2 from Guayllabamba. Sandy slope with xerophytic vegetation. |
| Coordinates | 0° 3' S 78° 20' W |
| Minimum elevation (m) | 2200 |
| Maximum elevation (m) | 2200 |
| Start date | 1984/03/08 |
| End date | 1984/03/08 |
| Family | Sterculiaceae |
| Identification | Byttneria ovata Lam. |
| Determined by | Cristobal, C.L. (CTES), 2003. |
| Identification qualifier | |
| Field notes | Bush, 1.5 m high. Flower white. Fruit dark brown. |