| Collector | Koyama, T. |
| Number | 15323 |
| Collected with | C.Phengklai, C.Niyondham & P.J.O’Connor |
| Country | Thailand |
| Subpart | Peninsular |
| County | |
| Locality | Pangnga, Phanom District, Khaosok on rout 401 |
| Coordinates | |
| Minimum elevation (m) | 0 |
| Maximum elevation (m) | 0 |
| Start date | 1979/02/08 |
| End date | 1979/02/08 |
| Family | Poaceae |
| Identification | Leersia hexandra Sw. |
| Determined by | W.Nanakorn |
| Identification qualifier | |
| Field notes | Emergent grass near margin of large Nelumbo pond |
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