| Collector | Beusekom, C.F.v. |
| Number | 2103 |
| Collected with | T. Smitinand |
| Country | Thailand |
| Subpart | Chantaburi |
| County | |
| Locality | Foot of Khao Soi Dao. Disturbed evergreen forest. |
| Coordinates | 13° 0' N 102° 15' E |
| Minimum elevation (m) | 400 |
| Maximum elevation (m) | 400 |
| Start date | 1969/11/11 |
| End date | 1969/11/11 |
| Family | Lamiaceae |
| Identification | Rotheca serrata (L.) Steane & Mabb. |
| Determined by | C. Leeratiwong |
| Identification qualifier | |
| Field notes | In clearing. C. 2 m high. Inflor. pale green. Fls greenish white, with lilac lower lip. Anthers brown. Filaments pale lilac. |
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