Upright shrub, 2–4 m; young shoots densely scaly, setae present or absent. Leaves 2.8–7 × 1.5–3.4 cm, ovate to elliptic, apex obtuse, upper surface glabrous or pubescent, midrib pubescent, lower surface pale green, scales unequal, up to their own diameter apart, yellowish brown to dark brown; petioles densely covered with hairs. Flowers 2–5, in a loose terminal inflorescence; calyx to 1 mm, sometimes pubescent; corolla purple or dark reddish purple, with or without darker spots, widely funnel-shaped, zygomorphic, 28–40 mm, outer surface scaly or not, sometimes hairy; stamens 10; ovary densely scaly, impressed below the declinate glabrous style. Flowering May. Royal Horticultural Society (1997)
Distribution China (NW Sichuan).
RHS Hardiness H4b.
Distribution China NW Sichuan
Habitat 2,300–3,000 m
RHS Hardiness Rating H6
Conservation status Critically endangered (CR)
This species is closely allied to R. concinnum but differs in the more dense indumentum and in the larger corolla. Royal Horticultural Society (1997)