| Collector | Larsen, K. |
| Number | 44861 |
| Collected with | Supee S. Larsen, Chr. T. Norgaard, K. Pharsen, P. Puudjaa, and W. Uerchirakan |
| Country | Thailand |
| Subpart | CHIANGMAI |
| County | |
| Locality | West of Mae Ton Luang, km 16.5 along road 1252, a side-road to 118 (formerly 1019). |
| Coordinates | 18° 58' N 98° 20' E |
| Minimum elevation (m) | 900 |
| Maximum elevation (m) | 900 |
| Start date | 1993/11/25 |
| End date | 1993/11/25 |
| Family | Polygonaceae |
| Identification | Persicaria barbata (L.) H.Hara |
| Determined by | C. Kantachot |
| Identification qualifier | |
| Field notes | Flowers dirty rose. Among stones in stream |
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