怒江杜鹃(原变种) nu jiang du juan (yuan bian zhong)

Rhododendron amaurophyllum I. B. Balfour & Forrest.

Erect shrubs, 0.3–1.2(–1.5) m tall. Leaf blade (1–)1.5–3 cm; adaxial surface dull, ± persistently scaly, usually hispid with strap-shaped setae. Calyx with abaxial scales, pubescent, sometimes hispid with strap-shaped setae; corolla 1.8–3 cm.

Rhododendron thickets on rocky slopes; 3000–4000 m. Sichuan, Xizang, Yunnan [Myanmar].