Epiphyte or tree of up to 30 m. Leaves digitate, with long petioles up to 42 cm.; leaflets 5–7, up to 25(40) × 15(20) cm., broadly ovate or ovate-elliptic to broadly elliptic, glabrous, coriaceous to subcoriaceous, the margin serrulate to almost entire, sometimes slightly undulate, the apex usually very long-acuminate, the base varying from cordate to subtruncate or even cuneate. Petiolules 4–7(12) cm. long, lateral veins conspicuous and rather widely spaced, with an obvious reticulum of veins between them. Stipules conspicuous in younger leaves, ovate-acuminate, probably not persistent. Inflorescence a group of sparsely puberulous racemes of pedunculate umbellules. Racemes 15–30(40) cm. long, with rusty tomentose bracts, the umbellules normally confined to the upper 3/4 of the axis and subtended by glabrous to floccose bracteoles. Peduncles of umbellules (0·6)1–1·5(4·5) cm. long; pedicels usually 5–6 per peduncle (rarely much more numerous), 2–7(11) mm. long. Styles 5–8, short, 1–1·5 mm. long including the stylopodium, initially connate but spreading at maturity. Fruit urceolate to subspherical, up to 5 mm. long, usually glabrous, rarely puberulous.