大芽杜鹃 da ya du juan

Shrubs, ca. 0.6 m tall; many-branched; young shoots grooved, with yellow scales. Leaf blade elliptic to broadly elliptic, 1.6–2.6 × 0.5–1.2 cm; base cuneate; apex rounded to acute, apiculate; abaxial surface gray-brown or honey yellow, scales contiguous; adaxial surface deep green, sparsely scaly, midrib and lateral veins raised abaxially, concave adaxially. Inflorescence terminal, umbellate, 4-flowered. Pedicel ca. 1.2 cm, scaly; calyx 1–1.5 mm, scaly at base; corolla broadly funnelform-campanulate, deep reddish purple to pale purple, tube 4–5.5 mm; outer surface not scaly; lobes 0.9–1 cm; stamens 10, slightly longer than corolla; filaments puberulent at base; ovary densely scaly; style longer than stamens; base pubescent. Capsule cylindric, ca. 6 mm. Fl. Jun.

Thickets, rocky slopes; 3300–3700(–4300) m. NW Yunnan.