Tree up to 20 m. Bole up to 1 m in circumference. Bark smooth, with longitudinal cracks. Wood pink, becoming darker towards the centre; without latex. Twigs densely covered with peltate scales which are 0.3–0.4 mm in diam. and dark reddish-brown with a pale margin. Leaves imparipinnate, up to 48 cm long and 44 cm wide; petiole 8– 16 cm, petiole, rachis and petiolules densely covered with scales like those on the twigs. Leaflets 9–11, 7–22 by 4–8 cm, coriaceous, pale yellowish-green on upper surface when dry, elliptical or ovate, recurved at margin, caudate-acuminate at apex, rounded or cuneate at the markedly asymmetrical base, the upper surface of the leaflet rugulose and pitted, the midrib and veins on the upper surface and the entire lower surface densely covered with scales like those on the twigs; veins 7–17 on each side; the midrib and lateral veins markedly depressed on the upper surface and subprominent on the lower; petiolules up to 15 mm. Male inflorescence c. 42 cm long and 42 cm wide; peduncle 7.5–11 cm; female inflorescence c. 28 cm long and 4 cm wide; peduncle up to 8 cm; peduncle, rachis and branches longitudinally wrinkled and densely covered with scales like those on the twigs. Flowers c. 3 mm long and 3–4 mm wide; pedicels c. 1.5 mm, the pedicels and calyx densely covered with scales like those on the twigs. Petals 5, with a few scales like those on the twigs on the outer surface. Staminal tube 1.5–1.7 mm long and 2.2–2.5 mm wide, depressed-globose, the aperture c. 0.7 mm in diam.; anthers 5, 0.5–0.8 mm long and 0.4–0.5 mm wide, ovoid, inserted about 2/3 of the way up the staminal tube and just protruding through the aperture, the staminal tube thick and fleshy below and between the anthers. Infructescence 30–40 cm long, 18–20 cm wide; peduncle 2–8 cm, the peduncle, rachis and branches longitudinally wrinkled and densely covered with scales like those on the twigs. Fruits up to 5 cm long and 2 cm wide, narrowly ellipsoid, ovoid or obovoid with a long narrow beak up to 1.5 cm long and a short broad stipe up to 5 mm long; the pericarp densely covered with scales like those on the twigs and without latex. Locules 2, each containing one seed which has an entire, translucent, white aril.
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