| Collector | Larsen, K. |
| Number | 3015 |
| Collected with | T. Santisuk & E. Warncke |
| Country | Thailand |
| Subpart | Chiang Mai |
| County | |
| Locality | Chiang Dao district. Pong Pho 12 km N og Doi Chiang Dao mountain. Old clearing in evergreen forest near grassland. |
| Coordinates | |
| Minimum elevation (m) | 900 |
| Maximum elevation (m) | 900 |
| Start date | 1968/08/01 |
| End date | 1968/08/01 |
| Family | Lamiaceae |
| Identification | Rotheca serrata (L.) Steane & Mabb. |
| Determined by | C. Leerratirwong |
| Identification qualifier | |
| Field notes | Small tree 4 m. tall. Violet flowers. |
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