Rhododendron praestans I. B. Balf. & W. W. Sm.

Shrubs or trees, 3–7 m tall; young shoots 8–10 mm in diam., densely gray floccose-tomentose. Petiole stout, flattened and broadly winged, 1.5–2.5 cm, sparsely gray tomentose or glabrescent; leaf blade leathery, oblong-lanceolate to oblong-ovate, broadest near apex of blade, 15–38 × 6–14 cm; base cuneate with broad wings decurrent down petiole; apex rounded, sometimes emarginate; abaxial surface silvery-gray to buff, indumentum thin, compacted and agglutinated; adaxial surface glabrous; midrib and veins prominent abaxially. Inflorescence racemose-umbellate, 12–20-flowered; rachis 25–35 mm. Pedicel ca. 3.5 cm, floccose-tomentose; calyx lobes 7(or 8), 1.5–2.5 mm, tomentose; corolla obliquely campanulate, pale yellow, white flushed pink or pink, with crimson spots and basal blotch inside, 3.5–4.5 × ca. 5 cm wide, lobes 7(–8); stamens 14–16, unequal, filaments glabrous; ovary 8–10 mm, densely buff-tomentose; style ca. 2.6 cm, glabrous, stigma discoid. Peduncle 4.5–5 cm. Capsule oblong-cylindric, base strongly oblique, 30–40 × 6–10 mm, rusty-tomentose. Fl. May–Jun, fr. Aug–Oct.

SE Xizang, NW Yunnan.

Mixed forests, coniferous forests in alpine regions; 3100–4200 m.

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

Rhododendron praestans 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 1916.

优秀杜鹃（学名：Rhododendron praestans）为杜鹃花科杜鹃属下的一个种。