| Collector | Larsen, K. |
| Number | 41059 |
| Collected with | S. S. Larsen, A. S. Barfod, W. Nanakorn, W. Ueachirakan and P. Sirirugsa |
| Country | Thailand |
| Subpart | SONGKHLA |
| County | |
| Locality | Ton Nga Chang waterfall, 20 km W of Hat Yai |
| Coordinates | 7° 0' N 100° 10' E |
| Minimum elevation (m) | 100 |
| Maximum elevation (m) | 250 |
| Start date | 1990/11/01 |
| End date | 1990/11/01 |
| Family | Myrsinaceae |
| Identification | Ardisia rigida var. laevis Larsen & C.M. Hu |
| Determined by | C.M. Hu (IBSC), 1991. |
| Identification qualifier | |
| Field notes | Shrub c 2 m high with thin stem. Inflorescence rachis and flowers violet to red. In evergreen forest common. |