Small tree. Twigs 1(—1.5) mm diameter, glabrescent; hairs 0.5-1 mm long; older twigs without lenticels. Leaves membranous, oblong-lanceolate, 6-10 by 2-3 cm, base attenuate, apex acute-acuminate, with ± blunt tip; upper surface (blackish) brown, lower surface grey, early glabrescent, hairs 0.5-1 mm; irregularly densely grey-white papillose, appearing non-papillose; dots absent; midrib flat or sunken above; lateral nerves 6-10 per side, at 70-80° to the midrib, far apart, brown and contrasting in colour below, lines of interarching and venation faint; petiole 6-8 by 0.8(-1) mm; leaf bud rather blunt, 4-5 by 1.5-2 mm, hairs dense, rough-woolly, 0.5-1 mm long. Inflorescences between the leaves, in the basal part of innovations, of the Knema-type; in male: consisting of 2 or 3 flowers at the end of a 1.5 mm long peduncle; bracts not seen. Whole inflorescence, including flowers, densely clothed in reddish brown rough-woolly hairs 0.5-1 mm. Female inflorescences not seen. Male flowers: pedicel 7 by 0.7-0.8 mm, bracteole less than 1 mm, caducous, scar 0.5(-1) mm below the apex; buds (ovoid-)oblong, apex subacute or ± blunt, base ± rounded, (8-)9 by 3 mm, cleft c. 1/4, lobes 2(-2.5) mm long, 0.1-0.2 mm thick, perianth inside fine-warty. Androecium tapering towards the apex, largely consisting of the synandrium; androphore (0.1-)0.2 mm long, 1 mm wide, at very base with a collar of minute reddish brown hairs 0.1-0.2 mm; synandrium (5.5-)6 by 1.2(—1.5) mm, thecae 12-14, ± contiguous, sterile apex narrow, ± blunt, (0.3-)0.4 mm. Female flowers and fruits not seen.