Tree, up to 23 m, 20 cm dbh. Axillary buds, when resting, mostly more or less enclosed between the base of the petiole and a low ridge of the twig, 1-1.8 by 1.5-2 mm, for c. 1 mm of its length uncovered; scales strongly thickened, especially at base, but leaving a narrow scar. Petiole 10-14 mm, sometimes with glands. Leaf-blade 10-20 by 3.5-9 cm, apex acutish to shortly acuminate; above rather dull, greyish green; beneath light yellowish green, papillose, secondary nerves c. 8 or 9 pairs, not forming an intramarginal nerve; glands scattered, probably rather numerous but often seemingly absent, up to 0.2 mm diam., exceptionally larger. Inflorescences up to 20 cm long; axes reddish brown, densely minutely appressedly hairy; lower bracts (sub)opposite. Pedicel 1.5-4 mm, grooved, appressedly shortly hairy. Sepals: outer sepals 2-2.5 by 2.6-3.3 mm; inner sepals 3.2-3.7 by 3.2-3.3 mm. Petals white, the upper ones with a yellow spot, when dry orange to dark red, sometimes with incrustations, the longest one 8.5-10.5 mm; carina densely more or less appressedly hairy outside; other petals glabrous outside. Stamens: filaments widened and thickened above base, there appressedly hairy, further glabrous; anthers 0.6-0.7 mm long, hairy to (sub)gla-brous at base. Ovary nearly sessile, half-patently hairy; ovules 4. Fruit globular, c. 1.7 cm diam., dull, smooth, light brownish, appressedly hairy.
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