| Collector | Larsen, K. |
| Number | 44878 |
| Collected with | Supee S. Larsen, Chr. T. Norgaard, K. Pharsen, P. Puudjaa, and W. Uerchirakan |
| Country | Thailand |
| Subpart | CHIANGMAI |
| County | |
| Locality | Pong Dueat Nat. park, c 55 km NNE of Chiangmai; km 40 onq the Pai road 1095, 5 km to NE. Secondary evergreen forest rich in bamboo, along stream, waterfall and hot springs. |
| Coordinates | 19° 8' N 98° 45' E |
| Minimum elevation (m) | 600 |
| Maximum elevation (m) | 600 |
| Start date | 1993/11/26 |
| End date | 1993/11/26 |
| Family | Onagraceae |
| Identification | Ludwigia adscendens (L.)Hara |
| Determined by | |
| Identification qualifier | |
| Field notes | Flowers white. |
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