| Collector | Larsen, K. |
| Number | KL47242 |
| Collected with | Supee S. Larsen |
| Country | Thailand |
| Subpart | Chiang Mai |
| County | |
| Locality | Tard Mork water fall, Mae Rim - Samoeng road. Evergreen gallery forest in deciduous Dipterocarp forest. |
| Coordinates | |
| Minimum elevation (m) | 500 |
| Maximum elevation (m) | 500 |
| Start date | 1999/01/26 |
| End date | 1999/01/26 |
| Family | Acanthaceae |
| Identification | Eranthemum tetragonum Nees |
| Determined by | P. Kladwong |
| Identification qualifier | |
| Field notes | In deciduous forest, flowers blue. |
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