Description from Flora of China
Shrubs or small trees, evergreen, andromonoecious, unarmed. Leaves simple, palmately lobed, serrate; stipules united with petiole, sheathing at base. Inflorescence a terminal panicle of umbels; bracts large, membranous, caducous. Pedicels not articulate below ovary. Calyx rim obsolete or 5-toothed. Petals 5, valvate. Stamens 5. Ovary 5- or 10-carpellate; styles 5 or 10, free. Fruit a subglobose drupe. Seed ± compressed laterally, endosperm smooth.
Two or three species: one or two native to Japan, one widely cultivated, one endemic to China (Taiwan).