| Collector | Larsen, K. |
| Number | 42691 |
| Collected with | S. S. Larsen, S. S. Renner, C. Niyomdham, W. Ueachirakan & P. Sirirugsa |
| Country | Thailand |
| Subpart | PHATTALUNG |
| County | |
| Locality | Tha Mot,30 km S. of Phattalung. Evergreen forest along stream. |
| Coordinates | 7° 20' N 100° 5' E |
| Minimum elevation (m) | 75 |
| Maximum elevation (m) | 175 |
| Start date | 1992/06/05 |
| End date | 1992/06/05 |
| Family | Rubiaceae |
| Identification | Mitragyne |
| Determined by | |
| Identification qualifier | |
| Field notes | "Tree 10 - 12 m; flowers pale yellow-brownish Fl. alc." |
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