顶叶冷水花(原变种) ding ye leng shui hua (yuan bian zhong)

Leaves crowded at stem apex or in a whorl of 4-6; stipules triangular, ca. 1 mm; leaf blades ovate to lanceolate, very unequal in length, 0.8-4 × 0.5-1.4 cm, main veins sunken, adaxial surface glabrous, margin serrate, each tooth often with an abaxial gland dot at tip, apex often acuminate. Fl. Jun-Jul, fr. Jul-Sep.

Abies and Rhododendron forests, shaded moist places, mossy rocks along ravines; 2900-3000 m. S Xizang, NW Yunnan [Bhutan, Nepal, Sikkim].