Tree, 4-22 m high; dbh 5-25 cm; (complex many-footed buttress system); outer bark blotched pale green and greyish to grey-brown to dark brown with many round pustular lenticels, inner bark straw to pinkish brown, shortly fibred; wood straw, turning pale redbrown to centre, moderately hard and heavy, splits very readily, tendency to rings. Flowering branchlets 1-3 mm in diam. Leaves 2-4-ju-gate; rachis 1.7-16 cm long, flat above, especially upper side sericeous. Leaflets 3-22.5 by 1.5-7.5 cm; apex (slightly) acuminate (to cuspidate), very apex emarginate to rounded (to mucronulate); above often glaucous when dry. Inflorescences usually ramiflorous on thin twigs to axillary to pseudoterminal, at most branching along rachis, latter up to 8.5 cm long. Bracts and bracteoles triangular; bracts 0.7-1.3 mm long, broad; bracteoles 0.4-0.5 mm long. Pedicels (sub)glabrous except for glandular hairs to puberulous, upper part 2.3 (flower)-9 (fruit) mm long. Flowers 3.5-5 mm in diam. Sepals 5 (see note 1); lobes 1.2-2.9 by 1-2.2 mm, margin and outside pilose. Petals 5 (see note 1); blade 0.5-2.2 by 0.7-2 mm, margin pilose, outside subglabrous; scale (divided into two) 0.4-1.3 by 1-2 mm; crest absent (to central ribs). Disc often with slits, usually 5-lobed, flat, 0.3-0.5 mm high, usually broader than high to as broad as high, pale green to yellow. Stamens 8(-10; see note 1); filaments white, in male flowers 1.8-3.3 mm long, in female flowers 0.7-1.6 mm long; anthers 0.7-1.3 by 0.4-1.2 mm, brown. Pistil: ovary in male flowers c. 0.4 mm high, up to 2.5 mm high in female flowers, 2-(or 3-)locular, subglabrous to pilose; style and stigma in male flowers up to 0.1 mm high, in female flowers up to 1.5 mm high. Fruits 1.7-3.6 by 1.2-2 cm, inside densely hirsute with hairs c. 0.5 mm short; stipe absent to 7 mm high. Seeds 1-1.9 by 0.7-1.1 cm, base straight; sarcotesta covering seed for greater part except for dorsal side; hilum 3-5.5 mm long.
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