Rhododendron spanotrichum I. B. Balf & W. W. Smith

Small trees, 6–7 m tall; branches usually stout, 3–5 mm in diam. below inflorescence. Petiole cylindric, 10–15 mm, glabrous; leaf blade leathery, obovate-elliptic to oblanceolate, 7–9 × 2–4 cm; base cuneate; margin revolute; apex acuminate; abaxial surface yellowish green, with red punctate bases of fallen glands or hairs, glabrous at maturity; adaxial surface green, glabrous; midrib prominent abaxially, grooved adaxially; lateral veins 14–20-paired, obscure. Inflorescence racemose-umbellate, 7–10-flowered; rachis 15–20 mm, glabrous. Pedicel 0.7–1 cm, puberulent or glabrous; calyx cupular; lobes 5, 1–1.5 mm, glabrous; corolla campanulate, crimson, with a dark blotch at base, 4–4.5 cm, lobes 5, suborbicular, 2–2.5 cm, emarginate, crenulate; stamens 10, unequal, 2.5–3 cm, filaments glabrous; ovary conoid-cylindric, slightly grooved, 7–8 mm, glabrous though with apex sparsely hairy; style ca. 2.5 cm, glabrous, stigma slightly swollen. Capsule not known. Fl. Mar.

SE Yunnan.

Evergreen broad-leaved forests; 1500–2300 m.

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

Rhododendron spanotrichum là một loài thực vật có hoa trong họ Thạch nam. Loài này được Balf. f. & W.W. Sm. miêu tả khoa học đầu tiên năm 1917.

红花杜鹃（学名：Rhododendron spanotrichum）为杜鹃花科杜鹃属下的一个种。