| Collector | Larsen, K. |
| Number | 44038 |
| Collected with | Supee S. Larsen, Chr. T. Norgaard, K. Pharsen, P. Puudjaa, and W. Uerchirakan |
| Country | Thailand |
| Subpart | PHATTHALUNG |
| County | |
| Locality | Khao Phu Kao Yah. Evergreen forest on limestone; dominants: Arenga, rattans and Dipterocarpaceae. |
| Coordinates | 7° 40' N 99° 50' E |
| Minimum elevation (m) | 100 |
| Maximum elevation (m) | 100 |
| Start date | 1993/10/26 |
| End date | 1993/10/26 |
| Family | Acanthaceae |
| Identification | Justicia ptychostoma Nees |
| Determined by | Hansen, B. (C), 1994. |
| Identification qualifier | |
| Field notes | Herb 20-25 cm. Flowers green. |
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