宽筒杜鹃 kuan tong du juan

Shrubs, 1–2 m tall; older branches greenish, glabrescent; branchlets slender, 2–3 mm in diam. below inflorescence, shortly glandular-hairy. Petiole 5–6 mm, glandular; leaf blade leathery, long-elliptic or oblong, 3–5.5 × 1.5–2.5 cm; base rounded; apex rounded, apiculate; both surfaces glabrous; midrib prominent and raised abaxially, flat adaxially; lateral nerves obscure on both surfaces. Inflorescence racemose-umbellate, 3–5-flowered; rachis 3–5 mm, tomentose. Pedicel 1–2 cm, sparsely glandular-hairy; calyx cupular; lobes 5, 3–4 mm; outer surface sparsely glandular-hairy; corolla campanulate, creamy white to pale rose, with crimson flecks, 3.5–4 cm, base with nectar pouches; lobes 5, suborbicular, ca. 1.5 × 2 cm, emarginate; stamens 10, unequal, 1.3–3 cm, filaments stout, pubescent at base; ovary ovoid, ca. 5 mm, densely glandular; style glabrous. Capsule oblong, slightly curved, 15–20 × ca. 6 mm, base enclosed by persistent calyx.

Rhododendron thickets, scrub, stony slopes; ca. 4000 m. SE Xizang.