| Collector | Thammarong, W. |
| Number | 3749 |
| Collected with | S. Rakarcha, C. Doungdang, M. Tabut |
| Country | Thailand |
| Subpart | Mae Hong Son |
| County | |
| Locality | Tham Chak To, Mok Cham Pae, Mueang Mae Hong Son district |
| Coordinates | |
| Minimum elevation (m) | 390 |
| Maximum elevation (m) | 390 |
| Start date | 2022/08/09 |
| End date | 2022/08/09 |
| Family | Sterculiaceae |
| Identification | Helicteres elongata Wall. |
| Determined by | |
| Identification qualifier | |
| Field notes | Ecology: deciduous dipterocarp forest with limestone. Small shrub 1 m high. Flower pale purple. |