| Collector | Larsen, K. |
| Number | 44465 |
| Collected with | Supee S. Larsen, Chr. T. Norgaard, K. Pharsen, P. Puudjaa, and W. Uerchirakan |
| Country | Thailand |
| Subpart | NAN |
| County | |
| Locality | Sapan (Spun) waterfall, few km N of Ban Bo Kluei, E. of Road 1081. |
| Coordinates | 19° 12' N 101° 13' E |
| Minimum elevation (m) | 600 |
| Maximum elevation (m) | 600 |
| Start date | 1993/11/17 |
| End date | 1993/11/17 |
| Family | Poaceae |
| Identification | Pseudechinolaena polystachya (Kunth)Stapf |
| Determined by | Laegaard, S. (AAU), 1996. |
| Identification qualifier | |
| Field notes | Not common, along trail |