Tree up to 23 m high, dbh up to 20 cm. Branchlets greyish brown, terete, rather densely inconspicuously lenticellate, young parts densely appressed fulvous short-hairy, early glabrescent. Leaves (1-) 2-3-jugate, glabrous; petiole slender, 2.5-6 cm, flattened, swollen at base; rachis up to 5 cm, towards the apex slightly broadened and sometimes marginate. Leaflets subsessile (or petiolules up to 1 cm long, swollen at base), opposite, elliptic, 5.5-22 by 3-8.5 cm, stiff-chartaceous, brownish-or yellowish-to greyish green when dried, beneath lighter and more dull; base cunéate and attenuate, often distinctly oblique; apex obtuse; midrib above slightly carínate, prominent beneath, nerves c. 12-14 per side, spreading, straight to slightly curved, only the upper ones looped and joined at the margin, slender, hardly prominent on either surface or prominent beneath, between every two nerves at least 1 intermediate vein ± parallel and often nearly as strongly developed as these, veinlets prominu-lous on both surfaces. Inflorescences pyramidal thyrsoid, 8-30 cm long, densely short fulvous-hairy, the branches ascending, in bigger inflorescences repeatedly thyrsoid, for the greater part bearing several short-stalked few-flowered cymes; bracts lanceolate, 4 mm long. Flowers reported to be creamy-white. Sepals with a broad, membranous, short-ciliate (partly glandular) margin, outside rather densely appressed shorty-hairy, outer obovate (-orbicular), 2.5-3.2 by 2-2.8 mm, inner nearly orbicular to obovate, 3-4 by 2.3-3 mm. Petals 0.8-1.5 mm long clawed, ovate to lanceolate, 2.5-3.6 by 1.5-2.5 mm, inside at base incurved-auriculate, outside the claw and at least the basal part of the blade appressed-hairy, inside the claw, the 'scales' and at least the basal half of the blade rather densely to sparsely woolly. Disc annular, low and thick, with undulate margin, rather densely short-hairy. Stamens in male flowers 4 mm long, filaments 2-3 mm long; in female flowers 2.5 mm long, filaments 1.5 mm long; anthers 1 mm long. Pistil 4.5 mm long; ovary 3.5 mm long, densely velvety; style 1 mm long, columnar, twisted, glabrous; stigma truncate, vaguely lobed; in male flowers rather reduced. Fruits densely appressed short-hairy, samarae 4 cm long, wing 1.5 cm wide, slightly curved upwards.
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