Rhododendron leptocarpum Nutt.

Shrubs, evergreen, usually epiphytic, 0.9–2(–3) m tall; branchlets scaly, otherwise glabrous. Petiole 5–10 mm, densely scaly; leaf blade leathery, narrowly elliptic to oblong-lanceolate, oblong-obovate, 3–8 × 1.5–3.6 cm; base cuneate or obtuse; apex obtuse or rounded, mucronate; abaxial surface pale, glaucous, scales dense, 0.5–1.5 × their own diameter apart, unequal, small to large, brown, sunk in pits; adaxial surface bright green, scaly or glabrous. Inflorescence (3–)5–10(–11)-flowered. Pedicel thin, flexuous, 2–4 cm, in fruit to 5 cm, scaly; calyx lobes 2–5 mm, ovate to rounded, reflexed in fruit, persisting to enclose mature capsule, scaly; corolla broadly campanulate or rotate-campanulate, yellow, 0.9–1.4 cm, tube 4–7 mm, outer surface scaly, inner surface pilose; stamens 10, filaments pubescent near base or ± apex; ovary densely scaly; style stout, sharply bent, short, scales at base or absent. Capsule narrowly cylindric or sickle-shaped, 12–16 mm, scaly. Fl. Apr–Jun, fr. Jul–Aug.

S Xizang, NW Yunnan [Bhutan, NE India, NE Myanmar, Sikkim].

Mixed forests, cliff ledges, rocks, sometimes epiphytic; 2400–3400 m.

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

Rhododendron leptocarpum là một loài thực vật có hoa trong họ Thạch nam. Loài này được Nutt. miêu tả khoa học đầu tiên năm 1854.