| Collector | Larsen, K. |
| Number | 40840 |
| Collected with | S. S. Larsen, A. S. Barfod, W. Nanakorn, W. Ueachirakan and P. Sirirugsa |
| Country | Thailand |
| Subpart | SURATTHANI |
| County | |
| Locality | Khao Sok. Evergreen gallery forest. |
| Coordinates | 8° 55' N 98° 40' E |
| Minimum elevation (m) | 100 |
| Maximum elevation (m) | 200 |
| Start date | 1991/10/25 |
| End date | 1991/10/25 |
| Family | Apocynaceae |
| Identification | Chilocarpus denudatus Blume |
| Determined by | Leeuwenberg, A.J.M. (WAG), 2001. |
| Identification qualifier | |
| Field notes | Scrambler; flowers yellow. |