Shrub or small tree, up to 12 m, 5 cm dbh. Twigs more or less brownish hairy. Axillary buds densely patently rather shortly hairy. Petiole 10-12 mm, hairy like twig. Leaf-blade 15-28 by 5.5-9.5 cm; above greenish, more or less densely hairy on the nerves, glabrescent, midrib flat to slightly prominent; beneath lighter coloured, rather densely patently hairy, secondary nerves 8 or 9 pairs, forming a more or less distinct intramarginal nerve; glands (2-)7-14(-18), scattered, (0.5-)0.6-0.8(-l) mm diam. Inflorescences up to 10 cm long; axes densely patently greyish hairy; in basal part flowers with 3 together; bracts with 2 large glands. Pedicel 5-8 mm, very densely minutely greyish patently hairy. Sepals densely to very densely patently greyish hairy outside; outer sepals 3.8-4 by 2.7-4 mm; inner sepals 5.2-6.1 by 3.8-4.5 mm, slightly keeled. Petals white, the upper ones with a yellow spot, when dry yellowish, the longest one 12-13 mm; carina very densely shortly half-patently whitish hairy outside, in apical part rather densely hairy inside; other petals glabrous or basally ciliate, or the upper petals minutely hairy inside above the base. Stamens: anthers 1.1-1.5 mm long, sometimes cohering around the stigma, ciliate along slits. Ovary containing 8-13 ovules. Fruit (immature) obovoid, dull, finely pustulate.