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Tree or shrub to 4m, terrestrial; young stems at first covered in brown scales later glabrous. Leaves 5-9 x 1.8-3.5cm, elliptic, the apex narrowly to broadly acute, the margin flat, the base narrowly tapering; upper surface, sparsely scaly initially, soon glabrous, midrib slightly raised above, lateral veins 6-12 pairs raised, rather obscure; lower surface with the midrib slightly raised, the laterals very obscure, scales fairly dense, brown, circular to lobed and with small centres. Flowers 10-18 per umbel, more or less horizontal; calyx a low scaly ring; corolla bright orange to red often with a darker red centre, sweetly scented, shortly funnel-shaped, 2.5-3.5 x 4-5cm, glabrous or very sparsely scaly outside; stamens 10, rather irregular, generally distributed around the lower 2/3 of the mouth of the flower; ovary glabrous or with a very few scales, style glabrous.
Distribution Indonesia (Northern Sumatra).
RHS Hardiness H1b.
A lovely and vigorous species in cultivation.