Tall shrub or small tree to 10 m tall; lignotuber apparently absent. Branchlets densely tomentose with persistent ferruginous hairs and some white-appressed hairs underneath. Leaves narrowly divergent, grooved below, 1.5-13.5 cm long, 0.75-1.1 mm wide, appressed-pubescent, quickly glabrescent; apex porrect, with mucro 1.1-2.2 mm long. Inflorescence axillary umbel of 1-6 flowers; rachis simple, obscure, 0.5-1.2 mm long, densely and shortly woolly-tomentose with ferruginous hairs tardily glabrescent; pedicels 4.5-7.5 mm long, sparsely appressed-sericeous with hairs white. Perianth c. 4.2-5 mm long, white, glabrous, not glaucous. Pistil c. 9.5 mm long. Fruit 3.2-4 cm long, 2.1-2.3 cm wide; pustules coarse, black or same colour as bark; beak small, transverse, ±smooth; horns obscure or absent; apiculum obscure or absent. Seed 23-27 mm long; wing extending 1/2-3/4 way down one side only, light brown to off-white.