Understorey trees up to about 8 m tall or shrubs with red wood and rough ridged, grey or brown bark which does not flake; branches spreading; young branchlets with scattered raised lenticels, glabrous or puberulous. Leaves tardily deciduous, immature at time of flowerÂing, radiating in a horizontal plane from the tips of young shoots in a somewhat digitate pattern; blade narrowly elliptic, 5-10 cm long, 1,5-2,5 cm broad, apex attenuate-acuminate, base cuneate, regularly and closely serrulate, stiffly membranous, lateral veins curving upwards from midrib; stipules intrapetiolar, fused. FlowÂers usually in (2) 6-10-flowered racemes, on short lateral spurs below new leafy shoots (tropical forms with many-flowered elongate racemes); pedicels thin, up to 3 cm in fruit, articulated above base, glabrous or puberulous. Sepals narrowly elliptic, c. 9 mm long, obtuse, ivory at anthesis, up to 1,5 cm long, red, pink, purple or green and spreading in fruit, someÂwhat crinkled when dried. Petals obovate, about 1 cm long, clawed, pale to bright yellow, caducous. Stamens c. 40, with filaments 3 mm long; anthers 1,5 mm long, dehiscing by lonÂgitudinal slits. Carpels 5(-6), erect; styl