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Shrub; young shoots glabrous. Leaves in whorls of up to three, at the ends of the branches, 2.5-3 x 1.5-1.7cm, apex acute, lower surface with lamina glabrous, veins and midrib with brown hairs, especially towards base. Pedicels densely and stiffly brownish-pubescent. Flowers solitary, appearing before the leaves; calyx minute; corolla deep magenta, upper lobe with darker flecks, open-campanulate, c.25mm; stamens 10; ovary densely covered with brownish bristles, style glabrous.
Distribution Japan (S Kyushu).
RHS Hardiness H4a-b.
Closely allied to R. nudipes but differing in the less hairy leaf under surfaces and in the densely pubescent pedicels. R. meddianum Forrest