陇蜀杜鹃(原亚种) long shu du juan (yuan ya zhong)

Rhododendron dabanshanense Fang & S. X. Wang; R. kialense Franchet.

Leaf blade 6–10 × 3–4 cm; abaxial surface densely gray-white to tawny or rust-yellow tomentose, hairs long-rayed stellate, glabrescent. Inflorescence 10–15-flowered. Ovary glabrous. Fl. Jun–Jul, fr. Sep.

Forests, mountain slopes, often dominant in thickets; 2600–4300 m. SW Gansu, E and S Qinghai, W Shaanxi, N and W Sichuan.

This variety is used medicinally.