| Collector | La-ongsri, W. |
| Number | 5640 |
| Collected with | P. Panyachan, P. Tatiya, S. Satata & S. Wongwan |
| Country | Thailand |
| Subpart | Kanchanaburi |
| County | |
| Locality | Si Sawat District, Chaloem Rattanakosin National Park, Tham Than Lod Yai |
| Coordinates | 14° 40' 26.91'' N 99° 17' 21.67'' E |
| Minimum elevation (m) | 662 |
| Maximum elevation (m) | 662 |
| Start date | 2018/06/26 |
| End date | 2018/06/26 |
| Family | Rubiaceae |
| Identification | Mitragyna diversifolia Havil. |
| Determined by | |
| Identification qualifier | |
| Field notes | Tree 15 m high on limestone in mixed-deciduous forest. Flower white turn to red. |
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