Shrub, to 7 m. Leaves 5–10 × 1.8–5 cm, broadly obovate to elliptic-lanceolate, glabrous when mature, apex acuminate. Flowers single, axillary below terminal vegetative bud, pink to purple, with darker spots on upper lobe, funnel-shaped; tube c.10 mm; lobes c.25 mm, spreading; stamens 10. Flowering April-May. Royal Horticultural Society (1997).
Distribution China C, S & E Japan
Habitat 1,000–2,000 m
RHS Hardiness Rating H3
Awards AM 1971 (Crown Estate Commissioners, Windsor) as R. wilsoniae; flowers purple, red-purple at base, with brown mottling in throat.
Conservation status Least concern (LC)
Rare in cultivation and tender. Royal Horticultural Society (1997)