Tree, up to 30 m, 27 cm dbh. Axillary buds 2, very indistinct when resting, apparently sunken into the tissue of the twig, the upper one when bursting with 2 broadly ovate c. 1-1.5 mm long persistent scales. Petiole (5—)8—12 mm. Leaf-blade coriaceous, 7-20 by 3-8 cm, apex obtuse to subacute; above brownish, midrib slightly sunken to flat; beneath pale glaucous-papillose, secondary nerves c. 8 pairs, not forming an intramarginal nerve; glands numerous, c. 0.3 mm diam. Inflorescences solitary or up to 9 together in the axils of the lower leaves and those of the already fallen ones, 1-10-flowered; axes up to 1.5 cm long, thin, glabrous; nodal glands very indistinct; bracts small, scale-like. Pedicel 8-10 mm, glabrous. Sepals dark reddish when dry; outer sepals c. 4-4.2 by 2.6 mm; inner sepals 4.5-4.8 by 3-3.3 mm. Petals white, the upper ones with a purple mark, when dry yellowish, minutely patently hairy in basal half outside and inside, further glabrous; carina like the lateral petals but a little shorter; lateral petals 7.5-8.5 by 7 mm; upper petals up to 7 by 2 mm. Stamens 8, exceptionally 7, up to c. 5 mm long; filaments connate over c. 1.5-2 mm, densely shortly patently hairy up to about halfway; anthers c. 0.7-0.8 mm long, minutely ciliate, very shortly hairy at base. Ovary light brownish, glabrous; style c. 5 mm, glabrous; stigma peltate, oblique, rather large; ovules 8-12. Fruit stipitate, ± globular, up to 1.2 cm diam., pustulate, dull, reddish brown, the style-scar more or less protruding and excentric.