| Collector | Geesink, R. |
| Number | 8136 |
| Collected with | P.Hiepko & C. Phengklai |
| Country | Thailand |
| Subpart | Northern |
| County | |
| Locality | Prov. Chiang Mai, Doi Chiang Dao |
| Coordinates | 19° 25' N 99° ' E |
| Minimum elevation (m) | 1750 |
| Maximum elevation (m) | 2000 |
| Start date | 1975/01/07 |
| End date | 1975/01/07 |
| Family | Plumbaginaceae |
| Identification | Ceratostigma asperrimum Stapf ex Prain |
| Determined by | Peter van Welzen |
| Identification qualifier | |
| Field notes | Bamboo-rich evergreen forest on limestone. Creeping shrublet on open bare ridge. Corolla entirely light blue |
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