| Collector | Madsen, J. E. |
| Number | 64087 |
| Collected with | |
| Country | Ecuador |
| Subpart | GUAYAS |
| County | |
| Locality | Isla Puná. Path Puná Nueva-Santa Teresa-Zapote. Deciduous dry forest with Ceiba, Cochlospermum, Capparis, Croton, and Prosopis. |
| Coordinates | 2° 43' S 79° 55' W |
| Minimum elevation (m) | 0 |
| Maximum elevation (m) | 0 |
| Start date | 1987/11/03 |
| End date | 1987/11/03 |
| Family | Cactaceae |
| Identification | Praecereus euchlorus subsp. diffusus (Britton & Rose)Taylor |
| Determined by | Madsen, J. E. (AAU), 2002. |
| Identification qualifier | |
| Field notes | Shrubby cacti, to 5 m high. Perianth white. |