红钟杜鹃 hong zhong du juan

Shrubs, 2–4 m tall; young shoots tomentose and shortly glandular-hairy. Petiole 12–15 mm, glabrous; leaf blade leathery, oblong-ovate, 4.5–6 × 2.5–4 cm; base rounded; apex obtuse or rounded, apiculate; abaxial surface with a thick fulvous indumentum, hairs long-stipitate stellate; adaxial surface glabrous. Inflorescence umbellate, 4–6-flowered; rachis ca. 4 mm. Pedicel 1–2 cm, glabrous; calyx crimson, 3–5 mm, glabrous; corolla funnelform-campanulate, fleshy, deep carmine, 3.5–4 cm, with dark red nectar pouches at base, lobes 5, slightly spreading, round; stamens unequal, 2–3 cm, filaments glabrous; ovary oblong-conical, furrowed, ca. 5 mm, ca. 5-locular, glabrous; style carmine, ca. 2.8 cm, glabrous; stigma slightly lobulate. Capsule cylindric, straight, ca. 13 × 7 mm, calyx and style persistent. Fl. Apr, fr. Oct.

Rhododendron thickets on mountain slopes; 3500–4000 m. S Xizang.