The Shantung maple (Acer truncatum) belongs to Aceraceae (the Maple family). It is a medium-sized deciduous tree that is native to northern China and the Korean Peninsula. The crown is broad, rounded, and it can reach about 15 m in height. The bark is smooth on young trees, becoming shallowly ridged with age. The leaves are opposite, palmately lobed with five lobes. The lobes are usually entire. The flowers are yellow-green with five petals, and bloom in corymbs in early spring. The fruit is a double samara with two winged seeds. The wings are widely spread, approaching a 180 degree angle. Shantung Maple is grown as an ornamental plant in Europe and North America.