| Collector | Stauning, O. |
| Number | 21 |
| Collected with | |
| Country | Mexico |
| Subpart | Yucatan |
| County | |
| Locality | State of YUCATAN. Municipio Valladolid. The Village Xocén (16 QCT 7978). From roadside in pueblo unless otherwise stated. |
| Coordinates | 20° 36' N 88° 10' W |
| Minimum elevation (m) | 40 |
| Maximum elevation (m) | 40 |
| Start date | 1989/06/25 |
| End date | 1989/06/25 |
| Family | Apocynaceae |
| Identification | Urechites andrieuxii Muell.Arg. |
| Determined by | Mogensen, B. (AAU), 1991. |
| Identification qualifier | |
| Field notes | Vine with white latex and bright yellow flowers. Common in dooryard garden secondary vegetation. Vernacular name: Differol blanco. Use: Medical against snake bites. Inf.: Theodoro. |