| Collector | Geesink, R. |
| Number | 6930 |
| Collected with | T. Hattink & C. Phengklai |
| Country | Thailand |
| Subpart | Chaiyaphum |
| County | |
| Locality | Limestone hill, with many bamboo |
| Coordinates | 15° 40' N 102° 0' E |
| Minimum elevation (m) | 700 |
| Maximum elevation (m) | 700 |
| Start date | 1974/05/25 |
| End date | 1974/05/25 |
| Family | Balsaminaceae |
| Identification | Impatiens masonii Hook.f. |
| Determined by | |
| Identification qualifier | |
| Field notes | Herb up to 1 m., at base of hill in open area. Succulent stem reddish. Petals pink, spur bearing calyx segment entirely pink, spur yellowish at apex |
|