| Collector | Maxwell, J.F. |
| Number | 76-598 |
| Collected with | |
| Country | Thailand |
| Subpart | Eastern |
| County | |
| Locality | Si Sa Ket. Dongrak Range, near Chong Bat Lak, Kantaralak Dist. Open sandy disturbed zones in mixed evergreen/deciduous forest |
| Coordinates | 14° 30' N 104° 0' E |
| Minimum elevation (m) | 400 |
| Maximum elevation (m) | 400 |
| Start date | 1976/08/21 |
| End date | 1976/08/21 |
| Family | Rubiaceae |
| Identification | Hedyotis pinifolia Wall. ex G.Don |
| Determined by | |
| Identification qualifier | |
| Field notes | Erect herb, calyx green with maroon tips, corolla white |
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