| Collector | Madsen, J. E. |
| Number | 50083 |
| Collected with | |
| Country | Ecuador |
| Subpart | COTOPAXI |
| County | |
| Locality | Road Salcedo - Ambato, km 2 from Salcedo. Seminatural xerophytic vegetation. |
| Coordinates | 1° 3' S 78° 36' W |
| Minimum elevation (m) | 2600 |
| Maximum elevation (m) | 2600 |
| Start date | 1984/01/22 |
| End date | 1984/01/22 |
| Family | Cactaceae |
| Identification | Opuntia soederstromiana Britton & Rose |
| Determined by | J. Madsen, 1986 |
| Identification qualifier | |
| Field notes | Plant 1-2 m high, most plants very spiny. Flower yellow, becoming red as it wither. Fruit red. |