Leaves compound, 5(-7)-palmatifoliolate; leaflets lanceolate, margins serrate to entire. Inflorescence terminal, corymbose. Flowers 5-merous. Stamens 8. Disk extrastaminal.

• 复叶，5(-7)掌状小叶；披针形的小叶，边缘有锯齿到全缘。花序顶生，伞房状。花5瓣。雄蕊8。花盘雄蕊外。