| Collector | Tsugaru, S. |
| Number | T-61827 |
| Collected with | |
| Country | Thailand |
| Subpart | Chiang Mai |
| County | |
| Locality | Along road from Check Point to Mae Pan waterfall (RS-24), Doi Inthanon. Edge of evergreen forest. |
| Coordinates | |
| Minimum elevation (m) | 1000 |
| Maximum elevation (m) | 1300 |
| Start date | 1988/08/02 |
| End date | 1988/08/02 |
| Family | Lamiaceae |
| Identification | Rotheca serrata (L.) Steane & Mabb. |
| Determined by | C. Leeratiwong |
| Identification qualifier | |
| Field notes | Shrub, 1.5 m tall; inflorescence reddish purple as a whole, but lower segment dark bluish violet. |
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