Trees 8-25 m tall. Young branches yellow pubescent to nearly glabrous; apical buds with leaves like clenched fists. Leaves 20-30(-50) cm or more, even-pinnate; leaflets 7-18, opposite, subopposite, or alternate, shiny above; petiolules 1-10 mm; leaflet blades narrowly elliptic to ovate, 7-15(-18) × 3-6.5 cm, usually subleathery, both surfaces glabrous, midvein abaxially protruding and adaxially slightly impressed, secondary veins 8-15 on each side of midvein, abaxially protruding and adaxially flat, base oblique and cuneate to rounded, apex obtuse, acute, shortly acuminate. Thyrses in upper leaf axils, 12-25 cm, appressed yellowish gray pubescent. Pedicel 2-4(-10) mm, stout, brownish pubescent. Calyx cup-shaped, (4 or)5-lobed, outside pubescent. Petals (4 or)5, white, narrowly elliptic, 5-6(-8) × ca. 2 mm, outside usually appressed rufous pubescent. Staminal tube 4-6.5 mm, outside sometimes covered with trichomes, apically margin truncate to undulate-crenulate; anthers 8, linear-oblong, included. Disk tubular, ca. 3 mm high, with crenations, apex brilliantly yellow ciliate. Ovary 3-or 4-locular, covered with dense yellow filiform trichomes, at least at base; style glabrous. Capsule pyriform to ellipsoid or globose, ca. 4 cm in diam. Seeds brown, narrowly ellipsoid, to 2.5 cm. Fl. May-Dec, fr. Nov-Jun.