Notes R.B.G. Edinb. 10:100 (1917).
Verified by:
Shrub or tree, 1-14 m. Leaves elliptic-oblong to ovate, 12—19(—30) x 4.4-11 cm, 1.7-3 x as long as broad, apex ± rounded and minutely mucronate, base rounded, lower surface glabrous when mature except for persistent punctulate hair bases; petioles 2-3.5 cm, glabrous. Inflorescence 5-10-flowered; rhachis 15-20 mm; pedicels 15-30 mm, ± stipitate-glandular. Calyx 2-6 mm, lobes shallow to well-developed, stipitate-glandular. Corolla 7—8-lobed, open- to funnel-campanulate, ± glandular outside, puberulent within, white, sometimes flushed rose, (65-)80-100 mm. Stamens 18-20, filaments puberulent below. Ovary and entire style with white-stipitate glands. Capsule 30-60 x 12 mm, curved
NE Burma, China (W Yunnan), Laos
R. rarile Balfour f. & W. W. Smith, ibid. 10: 139 (1917). Type: China, W Yunnan, hills around Tengyueh, 6000-7000 ft, v 1912, Forrest 7940 (holo. E)
Chamberlain, D.F. (1982) A Revision of Rhododendron II. Subgenus Hymenanthes. Notes From the Royal Botanic Garden Edinburgh 39(2):233