Rhododendron leptopeplum I. B. Balf. & Forrest

Shrubs or small trees, 6–9 m tall; branches stout; young shoots glandular and pubescent at first, later smooth and glabrous. Petiole cylindric, 10–20 mm, glandular and floccose; leaf blade leathery, oblanceolate to oblong-elliptic, 6–12.5 × 2–3.5 cm; base rounded or broadly cuneate; apex acute to obtuse; abaxial surface pale, persistently thinly loosely whitish-tomentose; adaxial surface green, smooth, glabrous or with vestiges of juvenile hairs on the midrib; midrib prominent abaxially, grooved adaxially; lateral veins 17–19-paired, obscure. Inflorescence racemose-umbellate, 10–12-flowered; rachis 10–15 mm, pubescent. Pedicel 1–1.5 cm, glandular-hairy; calyx lobes 5, 4–6 mm, rounded, membranous, glabrous except for glandular margin; corolla campanulate, milky white to rose, with crimson flecks at base, ca. 4–4.5 cm, lobes 5, orbicular, ca. 1.5 × 2 cm, emarginate; stamens 10, unequal, 1.5–3 cm, filaments pubescent at base; ovary conoid, ca. 5 mm, densely glandular; style ca. 3 cm, glabrous; stigma slightly swollen. Capsule not known. Fl. Mar.

NW Yunnan.

Rhododendron thickets, slopes; 3000–4000 m.

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

Rhododendron leptopeplum 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.

腺绒杜鹃（学名：Rhododendron leptopeplum）为杜鹃花科杜鹃属下的一个种。