Notes R.B.G. Edinb. 9: 272 (1916).
Verified by:
Tree, to 7m. Leaves broadly obovate, 17-28 x 11.8-16cm, 1.5-1.8 x as long as broad, apex rounded, apiculate, base + cuneate, upper surface glabrous, rugulose, lower surface with a unistrate or bistrate indumentum, the lower layer (when present) compacted, the upper layer dense, light brown, composed of moderately fimbriate, broadly cupular hairs; petioles terete, up to 5cm, sparsely tomentose. Inflorescence c.lO-flowered; rhachis c.8mm; pedicels c.30mm, lanate-tomentose. Calyx c.3mm, lobes rounded, sparsely tomentose. Corolla 8-lobed, obliquely campanulate, pale yellow, 50-60mm. Stamens 16. Ovary densely fulvous lanate-tomentose. Capsule not known.
China (SE Yunnan) & adjacent parts of n Vietnam
Chamberlain, D.F. (1982) A Revision of Rhododendron II. Subgenus Hymenanthes. Notes From the Royal Botanic Garden Edinburgh 39(2):260