黄药杜鹃 huang yao du juan

Shrubs, 1.8–3 m tall; young shoots scaly. Petiole 5–8 mm, scaly; leaf blade oblong-elliptic, 3–4 × 1.3–2 cm; base rounded; apex obtuse, apiculate; abaxial surface scaly, scales 2–3 × their own diameter apart, unequal, pale brown; adaxial surface scaly. Inflorescence terminal, subumbellate, 3-flowered; rachis ca. 2 mm, scaly. Pedicel 0.6–0.8 cm, scaly; calyx 5-lobed; lobes 2.5–4 mm, rounded or oblong-ovate, scaly; corolla tubular or tubular-campanulate, fresh yellow, 1.5–2 cm, outer surface scaly; stamens 10, unequal, 1.3–1.8 cm; filaments densely villous at base; ovary 5-locular, densely scaly; style slender, long, base scaly. Capsule cylindric, ca. 10 mm, densely scaly.

Cliffs; 2500–2800 m. Xizang.