Rhododendron setiferum I. B. Balf. & Forrest

Shrubs, 2–3 m tall; old branches smooth, bark usually flaking when dry; branchlets stout, ca. 5 mm in diam., young branches densely glandular. Petiole terete, 10–20 mm, with glandular hairs; leaf blade leathery, oblong-elliptic or elliptic, 5.5–10 × 1.8–4 cm; base rounded; margin thin, reflexed downward; apex obtuse or acute, apiculate; abaxial surface indumentum thin, yellowish brown or brownish; adaxial surface green, glabrous; midrib prominently raised abaxially, grooved adaxially; lateral veins 12–15-paired, flat on both surfaces, inconspicuous. Inflorescence racemose-umbellate, 6–10-flowered; rachis ca. 5 mm, glandular hairy and with a discontinuous indumentum. Pedicel slender, 1.5–2 cm, glandular-hairy and pubescent; calyx membranous, lobes 5, large, lanceolate, apex acuminate, outer surface and margin sparsely glandular-hairy, 5–7 × 2–3 mm; corolla funnelform, white or pink, base with deep red lines, 3.5–4 × ca. 3.5 cm; lobes 5, rounded, ca. 1 × 1.5 cm, apex emarginate; stamens 10, unequal, 1.3–2.5 cm, filaments slightly puberulent at base; anthers oblong-elliptic, 2–3 mm; ovary ovate, 3–4 mm, densely glandular-setose; style 2.6–2.7 cm, as long as corolla, base glandular-hairy, glabrous above, stigma slightly expanded. Capsule slender, curved, 15–25 × ca. 4 mm, persistently glandular-setose. Fl. Apr–May, fr. Jul–Aug.

SE Xizang, NW Yunnan.

Abies forests, Rhododendron thickets; 3300–3700 m.

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

Rhododendron setiferum là một loài thực vật có hoa trong họ Thạch nam. Loài này được Balf. f. & Forrest miêu tả khoa học đầu tiên năm 1919.

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