| Collector | Madsen, J. E. |
| Number | 36805 |
| Collected with | |
| Country | Ecuador |
| Subpart | GUAYAS |
| County | |
| Locality | Posorja, just outside the village. Dry forest. Because of the severe droughttime, the only green plants were two species of cacti. |
| Coordinates | 2° 42' S 80° 16' W |
| Minimum elevation (m) | 0 |
| Maximum elevation (m) | 0 |
| Start date | 1981/11/13 |
| End date | 1981/11/13 |
| Family | Cactaceae |
| Identification | Praecereus euchlorus subsp. diffusus (Britton & Rose)Taylor |
| Determined by | Madsen, J. E. (AAU), 2002. |
| Identification qualifier | |
| Field notes | Plant 4-5 m tall, long shoots. Spines about 15. Buds are spineless. Plants shrivelled because of the drought. |