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Shrub or tree, to 15m. Leaves 6-17 x 2-5cm, narrowly elliptic to elliptic, glabrous when mature, apex acuminate. Flowers 3-5 (rarely solitary), clustered at end of a leafy shoot below the vegetative buds, white or pink to magenta, with a yellow blotch, funnel-shaped; tube 16-22mm; lobes 30-40mm, broad, spreading; stamens 10.
Distribution Widespread in SE Asia, from E India to Cambodia, China and Malaya.
RHS Hardiness H1b-2.
Awards AM 1937 (L. de Rothschild, Exbury & Earl of Stair, Stranraer) as R. stenaulum; flowers silvery lilac, with violet tinge, dark on lobes, spotted pale brown, tube pale crimson externally.
Taxonomic note (incl. R. ellipticum Maxim., R. oxyphyllum Franch., R. pectinatum Hutch., R.stenaulum Balf.f. & Forrest & R. westlandii Hemsl.)
A cool glasshouse subject in temperate regions. A widespread and variable species in the wild.