Acer caudatum is an Asian species of maple trees. It is found in the Himalayas (Tibet, Nepal, northern and northeastern India, Myanmar) the mountains of southwestern China (Gansu, Henan, Hubei, Ningxia, Shaanxi, Sichuan, Yunnan), plus Japan, Korea, and eastern Russia. Acer caudatum is a deciduous tree up to 10 meters tall. Leaves are up to 12 cm across, thin and papery, dark green on the top, lighter green on the underside, usually with 5 lobes but occasionally 7.