Rhododendron rhuyuenense Chun ex Tam

This species was described (in Chinese) and illustrated under the name “Rhododendron lingii Chun” (Ching, Iconogr. Cormophyt. Sin. 3: 151, t. 4256. 1974), which was not validly published.

Shrubs, to 3 m tall; shoots with long bristles and short glandular hairs. Summer and winter leaves different. Petiole 4–10 mm, densely long-setose and shortly glandular-hairy; leaf blade leathery, elliptic-lanceolate, long-lanceolate or broadly ovate, 2.5–6.5 × 1.5–3(–4.5) cm; base subrounded and slightly asymmetrical; margin revolute, long-setose, rarely shortly glandular-hairy; apex acuminate and mucronate; abaxial surface sparsely setose, setae may be reduced to swollen hair bases; adaxial surface subglabrous except for persistent setae along midrib, lateral veins not reaching the margin. Inflorescence ca. 12-flowered. Pedicel 0.8–1 cm, densely long brown-setose and shortly glandular-hairy; calyx lobes shallowly divided, ovate or triangular-ovate, small, densely coarsely long-strigose; corolla rotate-campanulate, pink or pink-purplish blue, the upper lobes with red flecks, ca. 1 cm; tube short, ca. 5 × 4 mm, outer surface glandular-hairy, inner surface puberulent; lobes spreading, ovate, as long as corolla tube; stamens 5, unequal, 1.5–1.8 cm, long-exserted, filaments puberulent at base; ovary ovoid, brown-setose and glandular-hairy; style ca. 1.2 cm, shorter than stamens, long red-brown-setose and glandular-hairy. Capsule ovoid, 5–6 × ca. 4 mm, long dark-setose. Fl. May–Jun, fr. Jul–Nov.

N Guangdong, S Hunan, E Jiangxi.

Open forests and thickets; 1500 m.

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

Rhododendron rhuyuenense là một loài thực vật có hoa trong họ Thạch nam. Loài này được Chun ex P.C. Tam miêu tả khoa học đầu tiên năm 1983.

乳源杜鹃（学名：Rhododendron rhuyuenense），为杜鹃花科杜鹃属下的一个植物种。