| Collector | Shimizu, T. |
| Number | T-18508 |
| Collected with | H.Toyocuni, H.koyama, T.Yahara, T.Santisuk |
| Country | Thailand |
| Subpart | Tak |
| County | |
| Locality | Khao Phra War, Mae Sot District. Limestone hill with evergreen forest. |
| Coordinates | |
| Minimum elevation (m) | 700 |
| Maximum elevation (m) | 850 |
| Start date | 1979/10/12 |
| End date | 1979/10/12 |
| Family | Acanthaceae |
| Identification | Rungia tenuissima J.B.Imlay |
| Determined by | K. Rueanqsawanq |
| Identification qualifier | |
| Field notes | Fl. purple |
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