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Rhododendron uvariifolium Diels

Modern name

Rhododendron uvariifolium Diels


R. niphargum Balf. f. & Ward; R. dendritrichum Balf. f. & Forr.; R. monbeigii Rehd. & Wils.

An evergreen shrub 15 to 25 ft high; young shoots stout and as much as 38 in. thick, grey-downy. Leaves stout and leathery, obovate or oblanceolate, blunt or almost rounded at the apex, long-tapered at the base; 3 to 10 in. long, 112 to 234 in. wide, dark green and soon glabrous above, covered beneath with a close white, grey, or fawn felt; stalk 12 to 1 in. long. Flowers in a compact rounded truss of ten to fifteen, opening in spring. Calyx very small. Corolla bell-shaped, five-lobed, 112 in. long, rosy white to pale rose, with a crimson blotch at the base and similarly coloured spots on the upper side. Stamens ten, minutely downy at the base, white with dark brown anthers, ovary slender, glabrous or with a little down, tapered at the top to the glabrous style. Bot. Mag., t. 9480. (s. Fulvum)

R. uvariifolium is a species of wide range, from the Yungning area, on the borders between N.W. Yunnan and Szechwan westward to the region of the Tsangpo bend at the eastern end of the Himalaya, at altitudes of 7,000 to 13,000 ft. It was discovered by Forrest in 1904 on the ascent from the Yangtse to the Chungtien plateau and introduced by him in 1913. It is closely allied to R. fulvum, which has a less woolly brown or yellow tomentum.

The Award of Merit was given on April 13, 1965, to the clone ‘Yangtse Bend’, exhibited by the Royal Botanic Garden, Edinburgh.

From the Supplement (Vol. V)

It was mentioned that R. uvariifolium extends to the region of the Tsangpo Bend at the eastern end of the Himalaya. Some collections by Ludlow, Sherriff and Elliot from this area were described by Dr Cowan as var. griseum, differing in the closely matted leaf-indumentum and the rounded leaf-bases. This variety is not recognised in the Edinburgh revision, but plants agreeing with it could be distinguished as the Griseum group (Rev. 2, p. 368; Cox, The Larger Species of Rhododendron, p. 182).

Kingdon Ward 6311, identified as ‘R. coryanum var.’ in the R.H.S. Handbook, is R. uvariifolium.



Other species in the genus