Celtis julianae

Celtis julianae, the Julian hackberry, is a species of flowering plant in the family Cannabaceae, native to central and southern China. It is a fast-growing deciduous tree with gray bark reaching 80 ft (24 m). In the wild it is typically found growing in forested valleys and on slopes at 300 to 1,300 m (1,000 to 4,300 ft) above sea level. It has found use as a street tree in a number of Chinese and French cities, and is commercially available in Europe and North America, but not in the United Kingdom....read more on Wikipedia.