Acer truncatum

Acer truncatum, the Shantung maple, Shandong maple, or purpleblow maple, is a maple native to northern China, in the provinces of Gansu, Hebei, Henan, Jiangsu, Jilin, Liaoning, Inner Mongolia, Shaanxi, Shandong, Shanxi, and to Korea. It is a medium-sized deciduous tree growing to 15 metres (49 ft) tall with a broad, rounded crown. The bark is smooth on young trees, becoming shallowly ridged with age. The leaves are opposite, palmately lobed with five lobes, 5 centimetres (2.0 in) to 12 centimetres (4.7 in) long and 7 centimetres (2.8 in) to 11 centimetres (4.3 in) broad, with a 3 centimetres (1.2 in) to 10 centimetres (3.9 in) petiole; the lobes are usually entire, but occasionally with a pair of teeth on the largest central lobe, and the margin is often wavy. The petiole bleeds a milky latex when broken. The flowers are in corymbs, yellow-green with five petals 5 millimetres (0.20 in) to 7 millimetres (0.28 in) long; flowering occurs in early spring. The fruit is a double samara wit......read more on Wikipedia.