Tree 10–40(–45) m; bole to 90(–130) cm diam., often with buttresses to 3 m tall, 3 m out and 12 cm thick. Bark grey-brown smooth with corky lenticels in vertical rows, becoming fissured longitudinally and eventually flaking; inner bark straw mottled darker, darkening on exposure, frequently with acrid turnip smell, sapwood white to pinkish; heartwood red. Leafy twigs 6–9 mm diam., lenticellate, subglabrous to fulvescent tomentose; apical bud densely sericeous, the young leaves fist-shaped. Leaves 25–40 cm, paripinnate, 4–6-jugate, distinctly pale abaxially; petiole 3–6 cm, terete, swollen at base, glabrous to softly brown pilose. Leaflets 9–14.5 by 2.5–5.5 cm (subapical, the most proximal smaller), narrowly oblong to elliptic, glabrous or scattered hairy adaxially and brown pilose, particularly on veins abaxially, bases acute to cuneate, often markedly asymmetric, apices ± acuminate, costae 7–10 on each side, subsquarrose, weakly arcuate, ± bifid 2/3 from midrib and looped at margin; petiolules 1–4 mm, swollen. Thyrses axillary or borne on axillary dwarf shoots with no leaves and sericeous terminal buds, sometimes in axils of fallen leaves, 4–13 cm, ± squarrose, often branched from base; axes subglabrous to brownish pilose; bracts and bracteoles c. 1 mm long, triangular, caducous; branches 3–5 cm bearing fascicles of weakly scented flowers or branchlets bearing them; pedicels 1–2 mm, articulated with pseudopedicels c. 2 mm, both swollen near articulation. Calyx 0.5–0.8 mm long, campanulate, subglabrous to adpressed pubescent, margin 4-(or 5-)lobed, ± ciliate. Petals 4 (or 5), 1.5–2 mm long, broadly ovate, acute, white or cream, fleshy, glabrous without, ± pubescent within, valvate, adnate to staminal tube at base. Staminal tube cylindrical, glabrous to pubescent, very thin at base, margin 8(–10)-dentate or-lobed; anthers 8(–10), c. 0.8 mm long, included or slightly exserted opposite lobes, emarginate, ± hairy. Disk c. 0.5 mm tall, deeply crenate or 8-lobed. Ovary pilose, 2-or 3-locular; style ± glabrous; stylehead flattened capitate. Capsule c. 2.5 cm diam., flattened globose, glabrous, white, drying 3-angled, pericarp with white sap (Womersley). Seeds c. 15 mm long, ellipsoid, covered with red (?) aril.
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Tree to 40 m high; bole to 1.3 m diam., often with buttresses to 3 m high and extending out 3 m; bark smooth to flaking. Leaves in spirals, fist-shaped in bud, 25–40 cm long, paripinnate, 4–6-jugate; petiole 3–6 cm long; leaflets narrowly oblong to elliptic, 9–14.5 cm long, 2.5–5 cm wide, often asymmetric at base, usually acuminate at apex, often glabrous. Thyrses 4–15 cm long, often branched from base, usually axillary; bracteoles c. 1 mm long, caducous. Calyx campanulate, 0.5–0.8 mm long, 4-lobed. Petals 4, broadly ovate, 1.5–2 mm long, white, adnate basally to staminal tube. Staminal tube cylindrical with 8 lobes and anthers opposite them. Disc c. 0.5 mm long. Ovary 2-or 3-locular. Capsule flattened-globose, c. 2.5 cm diam., glabrous, white, drying 3-angled. Seeds usually 2, ellipsoid, c. 15 mm long, red-brown.
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