Tree up to 35 m. Bole up to 22 m, 150 cm in circumference, with buttresses out-wards up to 100 cm. Bark reddish-brown and grey or pale, flaking in large irregular scales and numerous reddish-brown lenticels, some in longitudinal rows; inner bark dark red or pinkish-brown; sapwood pale yellow, pale or dark yellowish-brown or pale reddish-brown; latex white. Twigs fairly stout, densely covered with minute reddish-brown or grey peltate scales which have a fimbriate margin and are deciduous, leaving dark reddish-brown pits. Leaves imparipinnate, up to 70 cm long and 50 cm wide; peti-ole up to 20 cm, flattened on the adaxial side, petiole, rachis and petiolules with indu-mentum like the twigs. Leaflets 11–15, 5–25 by 2–7 cm, pale reddish-brown when dry, coriaceous, acuminate or caudate at apex, rounded or cuneate at the asymmetrical base, upper surface rugulose, shiny, lower surface rugulose with few minute reddish-brown scales or numerous pale grey peltate scales on the midrib and lateral veins, often interspersed with minute reddish-brown pits; veins 6–11 on each side of the midrib, lower surface with midrib and lateral veins with longitudinal wavy ridges, midrib promi-nent and lateral veins slightly prominent; petiolules up to 15(–20) mm. Inflorescence up to 30 cm long and 20 cm wide; peduncle up to 11 cm, peduncle, rachis, branches and pedicels with indumentum like the twigs. Flowers dark yellow, up to 3.5(–5) mm long; sessile or with pedicel up to l(–3) mm. Calyx densely covered on the outside with dark brown stellate scales. Petals 3, densely covered on the outside when young with dark brown stellate scales which are deciduous at maturity. Staminal tube shorter than the corolla, subglobose, with the aperture c. 1 mm across, and shallowly and irregularly lobed; anthers 6–10, and half to as long as the tube, ellipsoid or narrowly ovoid, curved with the tube and just protruding beyond the aperture, usually with scattered simple hairs. Infructescence with about 4 fruits; peduncle 3.5–8 cm, peduncle, rachis and branches stout and with surface and indumentum like the twigs. Fruits up to 6 by 5.5 cm, ob-ovoid, the pericarp longitudinally wrinkled and moulded around the seeds when dry, densely covered with dark reddish-brown stellate scales; fruit-stalk up to 1 cm. Locules 3, each containing 0 or 1 seed. Seeds with a complete red, orange or white aril, c. 5.5 cm long, 2.5 cm wide and 1.5 cm thick; testa brown.
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