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*A medium-sized tree up to 30 m tall with bole up to 45 cm in diameter, usually without buttresses but rarely buttresses present; twigs strongly 4-angled, terminal bud usually conical, about 1 mm long and usually not functional; leaves .*Leaves elliptical to suboblong, (3-)4-8(-11) cm long, acute to attenuate at base, bluntly acuminate at apex, with 7-13(-17) veins per 5 mm; inflorescences .*Inflorescences axillary, unbranched, 7-11(-17)-flowered; flowers with 4 (rarely 8) tepals; fruit .*Fruit ovoid to spherical, 15-17 mm long, with fairly thick, compact outer layer, dull green.  ''C.'' ''pulcherrimum'' has often been confused with ''C.'' ''tetrapterum'' . Records of ''C.'' ''pulcherrimum'' from Thailand and Indo-China probably refer to ''C.'' ''tetrapterum'' . ''C. pulcherrimum'' usually grows in mixed dipterocarp forest up to 300 m altitude. The timber is fairly heavy with density of 590-900 kg/m³at 15% moisture content. It is not durable and not resistant to dry-wood termites. See also the table on wood properties.