| Collector | Larsen, K. |
| Number | 2046 |
| Collected with | T. Santisuk & E. Warncke |
| Country | Thailand |
| Subpart | |
| County | |
| Locality | Northern: 30 km S of Bo Luang along the Om Koi trail. |
| Coordinates | 18° 2' N 98° 24' E |
| Minimum elevation (m) | 1100 |
| Maximum elevation (m) | 1100 |
| Start date | 1968/07/03 |
| End date | 1968/07/03 |
| Family | Lamiaceae |
| Identification | Rotheca serrata (L.) Steane & Mabb. |
| Determined by | C. Leeratiwong |
| Identification qualifier | |
| Field notes | Common. In upper mixed deciduous forest with Dipterocarpus obtusifolius as dominant. |
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