| Collector | Larsen, K. |
| Number | 41746 |
| Collected with | S. S. Larsen, A. S. Barfod, W. Nanakorn, W. Ueachirakan & P. Sirirugsa. |
| Country | Thailand |
| Subpart | YALA |
| County | |
| Locality | Than To waterfall, 45 km S of Yala and surroundings. |
| Coordinates | 6° 12' N 101° 10' E |
| Minimum elevation (m) | 100 |
| Maximum elevation (m) | 200 |
| Start date | 1990/11/27 |
| End date | 1990/11/27 |
| Family | Acanthaceae |
| Identification | Phaulopsis imbricata (Forsk.) Sweet |
| Determined by | Hansen, B. (C), 1991. |
| Identification qualifier | |
| Field notes | On sandy wet soil. Flowers white. |