| Collector | Larsen, K. |
| Number | 42593 |
| Collected with | S. S. Larsen, C. Niyomdham, W. Ueachirakan & P. Sirirugsa. |
| Country | Thailand |
| Subpart | SONGKHLA |
| County | |
| Locality | Hat Yai, Ko Hong,water reservoir, open sandy soil |
| Coordinates | 7° 0' N 100° 20' E |
| Minimum elevation (m) | 50 |
| Maximum elevation (m) | 50 |
| Start date | 1991/10/26 |
| End date | 1991/10/26 |
| Family | Cyperaceae |
| Identification | Actinoscirpus grossus (L.f.)Goetghebeur & D.A. Simpson |
| Determined by | Simpson, D.A. (K), 1994. |
| Identification qualifier | |
| Field notes | Stem sharply triquetous, up to 180 cm |
This record