Tree, probably deciduous, up to 40 m high, 70 cm diam., with stilt-roots. Leaves elliptic to elliptic-oblong or obovate, ca 25-35-nerved, 25-40 by 12-20 cm, with rounded apex, obtuse base, and minutely undulate-dentate margin. Petiole 4-9 cm long, densely sericeously hirsute above. Inflorescence a 3-10-flowered composed raceme, forming a loose cluster. Flowers appearing with the leaves, ca 6 cm diam. Sepals 5, elliptic, 1.2-2 by 0.8-1.4 cm. Petals yellow, ca 2½ by 1½ cm. Stamens ca 335, in 2 distinct groups, either the outer group all of the same length, ca 8 mm long, straight in bud, the inner group ca 14 mm long, with their apex reflexed in bud, or the stamens of the outer group gradually decreasing in size towards the centre from 11 to 4 mm, with their apex more or less inflexed in bud, those of the inner group ca 13 mm long, with their apical part (ca 2 mm) reflexed. Carpels 7-8, ca 8 by 1 mm, with ca 8 mm long styles, each with ca 25-50 ovules. Fruit unknown.
An upper canopy tree in dense primary forest and more open, secondary formations, growing on sandy to clayey soils; at elevations uo to 500 metres.
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In primary and secondary forest at low altitude.
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