| Collector | Larsen, K. |
| Number | 46045 |
| Collected with | Supee S. Larsen, Christian Tange, Robbin Moran, T. Niyomdham & P. Puudjaa |
| Country | Thailand |
| Subpart | SONGKHLA |
| County | |
| Locality | Ton Sa Taw Waterfall. Evergreen forest along stream |
| Coordinates | 7° 12' N 100° 4' E |
| Minimum elevation (m) | 100 |
| Maximum elevation (m) | 100 |
| Start date | 1995/08/26 |
| End date | 1995/08/26 |
| Family | Cyperaceae |
| Identification | Pycreus polystachyos (Rottb.)P.Beauv. |
| Determined by | Simpson, D.A. (K), 1998. |
| Identification qualifier | |
| Field notes | On sand barr in the stream |