| Collector | Larsen, K. |
| Number | 41339 |
| Collected with | S. S. Larsen, A. S. Barfod, W. Nanakorn, W. Ueachirakan & P. Sirirugsa. |
| Country | Thailand |
| Subpart | TRANG |
| County | |
| Locality | Ton Teh waterfall, S of Khao Chong. Along waterfall. |
| Coordinates | 7° 25' N 99° 45' E |
| Minimum elevation (m) | 100 |
| Maximum elevation (m) | 150 |
| Start date | 1990/11/14 |
| End date | 1990/11/14 |
| Family | Begoniaceae |
| Identification | Begonia |
| Determined by | |
| Identification qualifier | |
| Field notes | On rocks in shade, Leaves with red undersides. Flowers white to pale rose. |