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Shrub or small tree, 3-9m; bark rough. Leaves (9-)16-23 x 4-6.3cm, narrowly elliptic to oblanceolate, apex acute to rounded and apiculate, lower surface covered with a one-layered buff to silvery, sometimes shining compacted and agglutinated indumentum composed of rosulate hairs; petioles terete. Flowers 12-20 to a truss, cream to clear yellow, sometimes with a red basal blotch, ventricose-campanulate, with nectar pouches, 30-40mm; stamens c.16; ovary densely rufous-tomentose.
Distribution NE Burma, China (W Yunnan).
RHS Hardiness H2-3.
Awards AM 1964 (National Trust for Scotland, Bridock Castle Gardens) to a clone ‘Glen Rosa’; flowers Primrose Yellow, with a dark crimson blotch.
This is a tender species that is only occasionally grown in Britain.