Tree 5-30 m. Twigs subterete or ± ridged, often hollow, (4-)5-15 mm diameter, with rusty woolly or felty hairs 0.5-1 (-1.5) mm long, early to late glabrescent; bark striate, not flaking; lenticels usually distinct. Leaves membranous or chartaceous, elliptic-oblong to oblong-lanceolate, sometimes ± parallel-sided, 17-40(-50) by 5-14 cm, base ± rounded or (short-)attenuate, apex acute-acuminate (in New Britain rarely short-caudate); upper surface drying dull olivaceous, minutely pustulate, lower surface late glabrescent or with hairs of mixed or subequal size 0.3-1 mm long, when shed not leaving thickened hair bases; dots absent; midrib flat or slightly sunken above, usually with persistent indumentum towards base; nerves 12-33 pairs, ± flat above (generally at c. 45° to the midrib), lines of interarching thin, ± irregular beneath; venation lax, faint above; petiole (2-)5-8 by 2.5-5 mm, not or hardly winged; leaf bud stout, 3-7 cm long, with dense hairs 0.5-1.5 mm long. Inflorescences among the lower leaves, woolly-pubescent, hairs 0.5-1 mm; in male: 2 or 3 times branched, 3.5-15 by 2-10 cm; peduncle up to 3 cm; flowers (male) in clusters of 3-6; in female: up to 8 by 5 cm, flowers in clusters of up to 4; bracts elliptic to broadly ovate, acute, 3-7 mm long, caducous; flowers with perianth 2-lobed (not known in var. lignosa), glabrous or glabrescent except at base, pedicel with hairs 0.2-0.5 mm, not articulated. Male flowers: pedicel slender, l-3(-4) mm; buds somewhat laterally compressed, subcircular, 1.8-3.2 by 2.3-3.5 mm, apex and base broadly rounded, cleft (1/3-) 1/2-2/3, lobes 0.2 mm thick; androecium: synandrium laterally compressed, (1.2-) 1.5-2 by (1.3-) 1.7-2 mm, 0.8-1 mm thick, apex ± broadly rounded-truncate, column narrowly hollowed for the upper l/4(-l/5), anthers (10-) 12-18 (i.e., with 12-18 thecae at each side), erect, 1.2-2 mm long, completely sessile, mutually touching, free apices up to 0.1 mm, not incurved (Plate 2: 38); androphore ± broad, up to 0.1 mm long. Female flowers: pedicel 1-2 mm long; buds subglobose or broadly ovoid, 2.8-3.5 by 3 mm, cleft 1/3-1/2; ovary subglobose, 2 mm diameter, with dense hairs 0.2-0.4 mm long, stigma subsessile, faintly 2-lobed, 0.1 mm high. Fruits 3-15 per infructescence, subglobose or broadly ellipsoid to fusiform, apex rounded or acutish, 1.2-2.8 by 1-1.8 cm, densely pubescent or partly glabrescent, hairs 0.5 mm, usually finely lenticellate-tuberculate; pericarp 1-3 mm (in var. lignosa 4-8 mm) thick; fruiting pedicel 1-4 mm long; perianth not persistent.
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A tree. It grows 5-30 m tall. The trunk can be 50 cm across. The bark is grey, rough and cracked. The leaves are spaced along the branches. The leaves are simple and 17-40 cm long by 5-14 cm wide. The flower are in the axils of the leaves. Male and female flowers are on separate plants. The fruit are on branched stalks. They fruit are 2-3 cm long. They are yellow or orange. There is one seed 1 cm long.
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