Tree (shrub) to 30 m high and 50 cm Ø. Twigs glabrous or tomentellous to tomentose or pubescent. Leaves glabrous or pubescent beneath, especially on midrib and nerves, with blunt, usually acuminate apex, acute to rarely rounded base and entire or mostly crenulate or dentate margin, (narrowly) elliptic to obovate, 7-20(-40) by (2½-)5-10(-20) cm; nerves 5-13(-16) pairs; petiole stout, 1-5 cm. Flowers mostly many in a 5-30 cm long panicle which is sometimes only branched towards the base, the axes rusty tomentellous. Bracts at the base of the 3-7 mm long pedicel, 3-5 mm, bracteoles directly under each flower, both tomentellous on both surfaces, caducous. Calyx tomentellous, the lobes blunt, ½-1½ mm. Corolla usually tomentellous, at least in bud, rarely nearly glabrous, 5-8 mm. Stamens more than 100. Disk hairy with 5 conspicuous glands. Ovary with same indument as calyx, 1½-2½ mm high; style pilose towards the conical base, about as long as the corolla. Fruit glabrous or tomentellous, (obliquely) ovoid (or rarely narrowly flask-shaped, pear-shaped or globular), more or less narrowed towards the apex, 8-25 by 5-20 mm; stone with c. 5(-10) ridges. Seeds curved, with curved embryo.
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A tree. It can grow 10-25 m tall. The leaves have leaf stalks. The leaves are narrowly oval. The base is acute of wedge shaped. There are teeth along the edge. They are shiny and dark green above and dull pale green underneath. The flowers are in the axils of leaves or near the ends of the branches. They are in groups 5-25 cm long and have a rusty covering.
A mid-canopy tree in undisturbed mixed dipterocarp, swamp and sub-montane forests, and in more open areas of secondary growth; on alluvial plains, but also common on ridges; growing on clay to limestone soils; at elevations up to 1,700 metres.
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A tropical plant. In Indonesia it grows from sea level to 1,200 m above sea level.