Tree, us. dioec., up to 8 m. tall, glab. in all parts; branches stout, spreading. Lvs 5-7-foliolate, petioles c. 15-20 cm. long, stipulately sheathing at base. Lflts on petiolules c. 3-5 cm. long, obovate-oblong to oblong-cuneate, rather thinly coriac., coarsely serrate-dentate, acute or acuminate to obtuse; midveins and main laterals evident above and below; terminal lamina 10-20 × 4-7 cm. Umbels terminal, compound; fls us. completely unisexual; primary rays 8-20, up to 10 cm. long; secondary rays 15-20; umbellules 10-15-fld. Calyx truncate or obscurely 5-toothed; petals 5, ovate to triangular, acute; ovary 2-loculed, 2-ovuled, style-branches 2, spreading. Fr. 5-8 mm. diam., almost black, somewhat compressed.