Tree to 30 m; bole to 40 cm diam., buttresses to 3 m tall, 2 m out. Bark dippled, lenticellate, dark brown, tardily white-laticiferous; inner bark dark red-brown; sapwood yellow. Twigs with conspicuous cicatrices. Leafy twigs 4–12 mm diam. Leaves to 1.5 m, pseudogemmulate, up to 17-jugate; petiole 10–15 cm; rachis 2.5–6(–11) mm diam., terete to angled. Leaflets (4–)10–38 by (2.7–)5.5–14.5 cm, ovate to oblong, dull midgreen adaxially, paler abaxially, reddish when expanding, inconspicuously adpressed harry notably on abaxial surface of veins, bases acute to rounded, apices acuminate, midrib sunken adaxially, costae 10–15 on each side; petiolules (3–)6–13 mm. Thyrse to 65 cm long, branched to 2 or 3 orders, fragrant; branches to 45 cm, ± adscendant; pedicels short; pseudopedicels 2.5–3.5 mm long. Calyx 2–5.5 mm long, shallowly cupular to cylindrical, sometimes thickened annularly, margin truncate to obscurely 5-lobed. Petals (4) 5 (6), 13–19 by 2–3 mm, pinkish, valvate. Staminal tube sericeous except at both ends, occasionally subglabrous without, margin (4–)5(–8)-lobed, lobes to 4 mm long, ± truncate; anthers (4) 5 or 6 (9), 2.8–3.8 mm long, locellate. Ovary 2-or 3-locular; style densely pubescent except at apex; stylehead shortly cylindrical. Infructescence to 45 cm, pendent. Capsule to 3.2 cm long, 4.5 cm diam., subglobose, velutinous, fleshy, orange-red, stipe to 1.5 cm long; pericarp thick, spongy, with 2 strong and 2 faint sutures, dehiscing along lines of first, latex white to colourless. Seeds 1 or 2, shining pale orange; sarcotesta with 1.5 mm hole near micropyle; cotyledons collateral.
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