Tree or shrub, up to 12 m high, dbh up to 10 cm. Twigs 1.5-2 cm in diam., blackish to reddish brown, glabrous. Leaves imparipinnate, (15-)30-40-jugate, 80-90 cm to more than 1 m long, axial parts fulvous-tomentose, glabrescent; petiole terete to flattened above, 3-6(-8) cm long; pseudo-stipules 1 or 2 pairs, ovate to suborbicular, 2.5-7.5 by 2.5-5 cm, base cordate, apex acute, penni-to reti-nerved, more or less connected with the normal leaflets by intergrades. Leaflets opposite to alternate, (sub)sessile, linear-lanceolate, up to 18 by 3 cm, index 6-7, chartaceous, blackish brown to greenish grey above, medium to dark brown beneath, midrib above densely fulvous-tomentose, beneath very sparsely hairy to glabrous, above densely, beneath more sparsely covered with glandular-pitted warts; base rounded to subcordate, oblique; apex tapering acuminate, obtuse to acute; nerves 1-1.5 cm apart, angle to midrib 65-85°, slightly curved, vaguely looped and joined at a distance from the margin. Inflorescences terminal, broad-thyrsoid, 25-30 cm high, subglabrous, sparsely branched; branches obliquely patent, up to 45(-60) cm long, narrowly thyrsoid; cymes scattered, short-stalked to sessile, condensed, few-flowered; pedicels 0.5-4 mm. Flowers red. Sepals outside very sparsely appressed short-hairy to glabrous, sparsely glandular-ciliolate, outer 2 elliptic to ovate, 2.5-3 by 1.8-2.5 mm, inner 3 orbicular, 3-4 by 2.5-4 mm, the latter with a broad petaloid margin. Petals 0.5 mm clawed, rather densely long ciliate, outside sparsely hairy at the base or glabrous, blade broad-ovate, subtruncate at base, 2 by 2.5 mm; scale slightly bilobed, about ⅓ as high as the blade, slightly recurved, ciliate. Disc glabrous. Stamens (6-)8; anthers 1.5-1.8 mm, long-ciliate to completely woolly. Ovary 3-celled, deeply grooved, glabrous; style conical. Fruits 3-lobed (if only 1 part is developed style near the base above the scars of the dropped sterile lobes), lobes spreading, oblique-ellipsoid, 22 by 13 mm, scabrous, glabrous, in vivo chocolate-coloured or yellow or orange. Seeds hazelnut-shaped, 12 by 9 mm.
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