| Collector | Larsen, K. |
| Number | 42956 |
| Collected with | S. S. Larsen, S. S. Renner, C. Niyomdham, W. Ueachirakan & P. Sirirugsa |
| Country | Thailand |
| Subpart | YALA |
| County | |
| Locality | Tho Moh, N side of Bang Lang Reservoir |
| Coordinates | 6° 4' N 101° 23' E |
| Minimum elevation (m) | 200 |
| Maximum elevation (m) | 250 |
| Start date | 1992/06/17 |
| End date | 1992/06/17 |
| Family | Acanthaceae |
| Identification | Justicia quadrifaria (Nees) T. Anderson |
| Determined by | Hansen, B. (C), 1996. |
| Identification qualifier | |
| Field notes | Flowers small, greenish-white with purple marks on lower lip |
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