| Collector | Larsen, K. |
| Number | 44393 |
| Collected with | Supee S. Larsen, Chr. T. Norgaard, K. Pharsen, P. Puudjaa, and W. Uerchirakan |
| Country | Thailand |
| Subpart | PRAE |
| County | |
| Locality | At stream and wayside along Road 1022 from Prae to Ban Nam Klai. Evergreen galleri-forest along small stream through deciduous dipterocarp forest on lateritic, calcareous soil. |
| Coordinates | 18° 3' N 100° 15' E |
| Minimum elevation (m) | 400 |
| Maximum elevation (m) | 400 |
| Start date | 1993/11/15 |
| End date | 1993/11/15 |
| Family | Polygonaceae |
| Identification | Persicaria barbata (L.) H.Hara |
| Determined by | C. Kantachot |
| Identification qualifier | |
| Field notes | "Flowers red; along stream" |
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