| Collector | Balslev, H. |
| Number | 9963 |
| Collected with | N. Sutjaritjai, V. Chamchumroon, W. & S. Eiserhardt, P. Sumanon, P. Panyadee, P. Kladwong & B. Pakinamhang |
| Country | Thailand |
| Subpart | Chiang Mai |
| County | |
| Locality | Maefang district. Sri Lanna National Park. Dry dipterocarp forest. |
| Coordinates | 19° 10' 31.62'' N 99° 2' .87'' E |
| Minimum elevation (m) | 409 |
| Maximum elevation (m) | 409 |
| Start date | 2019/12/18 |
| End date | 2019/12/18 |
| Family | Acanthaceae |
| Identification | Haplanthus laxiflorus (Blume) Gnanasek., G.V.S.Murthy & Y.F.Deng |
| Determined by | |
| Identification qualifier | |
| Field notes | 40 cm high herb at roadside. Flowers blue. |
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