南涧杜鹃 nan jian du juan

Small shrubs, 0.3–0.5 m tall; young growth densely setose. Petiole 4–7 mm, densely setose; leaf blade leathery, oblong-elliptic or ovate, 2–3.5 × 0.7–1.7 cm; base rounded; margin setose; apex obtuse, mucronate; abaxial surface pale green, scales sparse, unequal, brown, midrib sparsely setose; adaxial surface green, glabrous. Inflorescence 4–6-flowered. Pedicel 2–2.5 cm, scaly, setose; calyx lobes 1–2 mm, rounded, scaly, margin setose; corolla broadly funnelform-campanulate, yellow, 2–2.3 cm, lobes oblong, as long as tube; stamens 10, filaments villous towards base; ovary scaly; style 1.5–2.2 cm. Capsule ovoid, 6–8 mm, densely scaly. Fl. May–Jun.

Thickets; 2600–2800 m. W Yunnan.