| Collector | Madsen, J. E. |
| Number | 50340 |
| Collected with | |
| Country | Ecuador |
| Subpart | PICHINCHA |
| County | |
| Locality | Guayllabamba, km 0-1 S to the village. Sandy and stony slopes with xerophytic scrub. |
| Coordinates | 0° 4' S 78° 22' W |
| Minimum elevation (m) | 2200 |
| Maximum elevation (m) | 2200 |
| Start date | 1984/02/29 |
| End date | 1984/02/29 |
| Family | Cactaceae |
| Identification | Opuntia soederstromiana Britton & Rose |
| Determined by | J. Madsen, 1986 |
| Identification qualifier | |
| Field notes | Plant 0.8-2.5 m high. Flower orange-yellow. Style green. Fruit red. |