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Shrub or small tree, 2-5m. Leaves subcoriaceous, 9-14 x 3-5cm, oblanceolate to oblong, apex acuminate, lower surface usually with a papillate cuticle and a thin persistent or detersile stellate indumentum, lacking punctate glands. Flowers 5-10, in lax truss, pale cream to pink, with purple flecks and a basal blotch, campanulate, nectar pouches lacking, 40-55mm; ovary with a dense dendroid tomentum intermixed with stalked glands.
Distribution Bhutan, NE India (Arunachal Pradesh).
RHS Hardiness H3-4.
Taxonomic note (incl. R. epapillatum Balf.f. & cooper)
Rarely grown; plants in cultivation are sometimes wrongly named R. agastum, a species that may be distinguished by its 6-7-lobed corolla, etc.