焰红杜鹃 yan hong du juan

Shrubs, 1.5–2 m tall; young shoots sparsely black-floccose, eglandular. Petiole 6–8 mm, tomentose or glabrescent; leaf blade thickly leathery, elliptic to oblong-ovate, 3.3–5.5 × 2–2.8 cm; base rounded or cordate; apex bluntly rounded, apiculate; abaxial surface thickly fawn woolly, hairs fasciculate; adaxial surface glabrous except for ± floccose-hairy groove of midrib. Inflorescence umbellate, 4–6-flowered; rachis 3–5 mm, tomentose. Pedicel 0.5–0.6 cm, sparsely floccose or glabrescent; calyx crimson, fleshy; lobes 8–10 mm, unequal, glabrous; corolla funnelform-campanulate, vermilion, 3–3.5 cm, with black-red nectar pouches at base, lobes 5, spreading outwards, rounded; stamens unequal, 1.5–2.5 cm, filaments white, glabrous; ovary elongate-cylindric, 5–6 mm, 5-locular, glabrous; style white, 2.5–2.8 cm, glabrous; stigma capitate, red. Fl. May.

Forests, cliffs; ca. 3700 m. S Xizang.