Rhododendron barbatum Wall. ex G. Don

Large shrubs or small trees, 1.5–8 m tall; old branches grayish brown, glabrous; young branches setose, rarely glabrous. Petiole 12–22 mm, sparsely blackish brown glandular-setose or glabrous; leaf blade leathery, oblong to obovate-oblong, 9.8–18 × 3.5–5.8 cm; base truncate to rounded; margin reflexed; apex acuminate; abaxial surface whitish green, midrib and base setose, other parts slightly hairy when young; adaxial surface green; midrib raised abaxially, impressed adaxially; lateral veins 17–21-paired. Inflorescence densely umbellate, 10–20-flowered; rachis ca. 5 mm, glabrous. Pedicel 0.5–1.3 cm, glabrous; calyx green flushed red, cupular; lobes 5, 7–15 mm, broadly ovate or obovate-oblong, glabrous or with base hairy; margin erose; corolla tubular-campanulate, fleshy, deep red to blood-red, 3.1–3.6 × 3–3.6 cm, with 5 deep blackish red nectar pouches at base, glabrous; lobes 5, ± rounded, ca. 1.8 × 1.6–1.8 cm, apex deeply emarginate; stamens 10, unequal, 1.3–2.1 cm, filaments white, glabrous, anthers subelliptic, purplish black, 1.6–2 mm; ovary cone-shaped, ca. 5 mm, densely short-glandular-hairy; style ca. 1.6 cm, glabrous; stigma small, reddish, ca. 1.8 mm wide. Capsule cylindric, ribs obvious, slightly curved, 20–24 mm, with vestigial glandular hairs; calyx persistent; style persistent. Fl. May–Jun, fr. Aug–Sep.

S Xizang [Bhutan, India, Nepal, Sikkim].

Abies forests, Rhododendron thickets; 2400–3500 m.

Rhododendron barbatum adalah spesies tumbuhan yang tergolong ke dalam famili Ericaceae. Spesies ini juga merupakan bagian dari ordo Ericales. Spesies Rhododendron barbatum sendiri merupakan bagian dari genus Rhododendron.

Rhododendron barbatum là một loài thực vật có hoa trong họ Thạch nam. Loài này được Wall. ex G. Don miêu tả khoa học đầu tiên năm 1834.

硬刺杜鹃（学名：Rhododendron barbatum）为杜鹃花科杜鹃属下的一个种。