| Collector | Laegaard, S. |
| Number | 21840 |
| Collected with | M. Norsangsri, P. Pornpongrungrueng & S. Khoomrathok |
| Country | Thailand |
| Subpart | UBON RATCHATHANI |
| County | |
| Locality | Ca 2 km S of dam of Krong Chiam, sloping sandstone with some seeping water |
| Coordinates | 15° 16' N 105° 29' E |
| Minimum elevation (m) | 150 |
| Maximum elevation (m) | 150 |
| Start date | 2001/10/27 |
| End date | 2001/10/27 |
| Family | Poaceae |
| Identification | Dimeria ornithopoda Trin. |
| Determined by | Laegaard, S. (AAU), 2002. |
| Identification qualifier | |
| Field notes | Annual |