| Collector | Balslev, H. |
| Number | 10139 |
| Collected with | Manop Poopath, Preecha Karaket, Perasin Thaotawin, Pornchai Kladwong, Wirata Rujichaipimon, Nils Brem Nøhr |
| Country | Thailand |
| Subpart | Trat |
| County | |
| Locality | Koh Chang island. Perimeter road along S side of island. Sii Tor waterfall. Wet tropical forest, flat area on floodplain |
| Coordinates | 11° 58' 58'' N 102° 19' 37'' E |
| Minimum elevation (m) | 26 |
| Maximum elevation (m) | 26 |
| Start date | 2022/07/06 |
| End date | 2022/07/06 |
| Family | Rubiaceae |
| Identification | Chassalia chartacea Craib |
| Determined by | |
| Identification qualifier | |
| Field notes | Half shrub, 0.4m tall. Infructescence purple; fls. black |
|