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Shrub, to 7m. Leaves 5-10 x 1.8-5cm, 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.10mm; lobes c.25mm, spreading; stamens 10.
Distribution C, S & E China, Japan.
RHS Hardiness H1b-3.
Awards AM 1971 (Crown Estate Commissioners, Windsor) as R. wilsoniae; flowers purple, red-purple at base, with brown mottling in throat.
Taxonomic note (incl. R. wilsoniae Hemsl. & E.H. Wilson)
Rare in cultivation and tender.