Changes

*A medium-sized, sometimes large tree up to 32(-48) m tall, bole straight,branchless for up to 24(-36.5) m, up to 60(-200) cm in diameter, buttresses usually absent or very small, bark surface greyish-brown to dark brown; stipules .*Stipules absent or present, inserted at the base of the petiole, narrow; leaves with 9-27 leaflets, rachis thick with sharp edges, leaflets gradually to rather abruptly short-acuminate at apex, margin entire, variably pubescent to glabrous, with 12-30 pairs of secondary veins; inflorescence .*Inflorescence axillary, male one paniculate, female one subracemose; flowers .*Flowers 10-13 mm long, stamens 6; fruit .*Fruit ovoid, circular in cross-section, 20-63 mm × 17-45 mm, usually with irritating reddish-brown hairs.  The species is highly polymorphic and 2 subspecies each with 2 varieties have been distinguished. Subsp. ''hirsutum'' with the varieties ''hirsutum'' and ''beccarii'' Leenh. occurs throughout the range of the species except for New Guinea. Subsp. ''multicostulatum'' Leenh. with the varieties ''multicostulatum'' and ''leewenii'' Leenh. is found in the Moluccas, New Guinea and the Solomon Islands. ''C. hirsutum'' is locally rather common in primary and secondary forest in wet to well-drained locations, usually at low elevations, rarely up to 1800 m altitude. The density of the wood is 360-780 kg/m³at 15% moisture content.