Tree up to 40 m tall, evergreen, sometimes with buttresses; bark flaking off. Leafy twigs 3-5 mm thick, brown, glabrous, drying dark brown to blackish; lenticels scattered. Leaves spirally arranged; lamina coriaceous, entire, elliptic to subobovate, (6-)10-25(-30) by (2.5-)5-10(-12) cm, apex short-acuminate, base subcordate to rounded, unequal, margin entire to repand; both surfaces glabrous, smooth; lateral veins 9-16 pairs, tertiary venation scalariform, almost flat; petiole 1-2.5 cm long, 1-2 mm thick, glabrous, the epidermis flaking off; stipules fully amplexicaul, 1-3 cm long, glabrous, caducous. Staminate inflorescences axillary, solitary; peduncle 1.5-3 cm long, glabrous; head cylindrical to spicate, 2-3 by 0.5-0.7 cm; perianth tubular c. 0.8 mm long, the apex 2-fid, minutely puberulous; stamen c. 1 mm long, anther c. 0.4 mm long; interfloral bracts peltate, the apical part 0.4-0.5(-1) mm diam., ciliolate. Pistillate inflorescences axillary, solitary; peduncle 2.5-4.5 cm long, glabrous; head cylindrical; perianth tubular, minutely puberulous, the apex convex; stigma bifid; interfloral bracts peltate, the apical part 0.4-0.5(-1) mm diam., ciliolate. Infructescences ellipsoid to subglobose, up to 4.5 by 1.5 cm, covered with 1-2 mm long cushion shaped apices of the perianths; fruits ellipsoid, c. 0.5 cm long.
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A small or large tree. It grows 16-40 m high. The trunk can be 80 cm across. It can have buttresses 2 m tall. The bark is rough and flaky. The leaves occur singly at a node and are arranged in spirals long the branch. The leaves are simple and broadest near the middle. They are 16-21 cm long by 8-10 cm wide. The flowers are in the axils of the leaves. Male flowers are along an axis and female flowers occur singly. Male and female flowers occur in the same plant. The fruit is a multiple fruit 2-3 cm long and 2 cm wide. They are green and fleshy and do not have spines. There are about 12 seeds 1 cm long.
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