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Tree, to 7m, bark rough. Leaves 17-28 x 11.8-16cm, broadly obovate; upper surface rugulose, with deeply impressed veins, lower surface with a 1-2 layered indumentum, the upper layer dense, light brown, composed of moderately fimbriate broadly cup-shaped hairs, the lower layer, when present, compacted; petioles terete. Flowers pale yellow, 8-lobed, obliquely campanulate, nectar pouches lacking, 50-60mm; stamens 16; ovary densely fulvous-lanate-tomentose.
Distribution China (S Yunnan).
RHS Hardiness H2-3.
This species, which has been recently introduced into cultivation, is closely allied to R. falconeri. It differs however in the ovaries and pedicels that lack the glands that are characteristic of the latter species. It is likely to require a reasonably frost-free climate.