Rhododendron oreotrephes W. W. Smith

Shrubs, 1–4 m tall; young shoots deep purplish red, sparsely scaly, otherwise glabrous or pubescent. Petiole pinkish purple, 7–13 mm, sparsely scaly, sometimes pubescent; leaf blade elliptic, oblong or ovate, 1.8–6 × 1.4–3.5 cm; base rounded to cordate, rarely broadly cuneate; apex obtuse or rounded, apiculate; abaxial surface pinkish green or green, scales contiguous, or less than (rarely more than) their own diameter apart, all similar, yellowish brown or brown; adaxial surface without scales. Inflorescence terminal or subterminal, shortly racemose, 3–5(–10)-flowered; rachis 1–8 mm. Pedicel purplish red, 0.5–2 cm, sparsely scaly; calyx undulately 5-lobed or annular, ca. 1.5 mm; corolla broadly funnelform-campanulate, 5-lobed to the middle, pale purple or pale red or deep purplish red, 1.8–3 cm, outer surface glabrous, lobes ovate; stamens unequal, long ones as long as or slightly longer than corolla; filaments spreading-pubescent below; ovary 5-locular, densely scaly; style glabrous. Capsule cylindric, 8–13 mm. Fl. May–Jul.

SW Sichuan, SE Xizang, N Yunnan [Myanmar].

Evergreen-deciduous mixed forests, Abies or Larix forest margins, Quercus-Rhododendron thickets; (2100–)3000–3700 m.

Rhododendron oreotrephes (山育杜鹃, shan yu du juan) is rhododendron species native to Burma and south-west China, collected in Sichuan in 1904 by Dr. Ernest Henry Wilson. It is an upright shrub, growing to 4 metres (13 ft) in height, with oblong, often bluish, leaves up to 6 centimetres (2.4 in) in length. Its flowers are pink to lavender. Fragrant leaves smell of warming spices with notes of cinnamon and pine.

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

Rhododendron oreotrephes là một loài thực vật có hoa trong họ Thạch nam. Loài này được W.W. Sm. miêu tả khoa học đầu tiên năm 1914.

山育杜鹃（学名：Rhododendron oreotrephes）为杜鹃花科杜鹃属下的一个种。