 The bark on young trees is smooth, olive-green with regular narrow vertical pale green to greyish stripes and small greyish lenticels; on old trees, it becomes rough and grey.The leaves are three-lobed (occasionally five-lobed with two additional small basal lobes), double serrated, 8–16 cm long and 6–16 cm broad, matt to sub-shiny dark green above, paler below with small tufts of rusty hair on the veins when young, becoming glabrous when mature; the petiole is greenish (rarely pinkish), 3–5 cm long.The leaves turn to bright orange or red in the autumn.