The leaves of birch are thick and papery, which has certain ornamental value. The leaves of birch can be as long as 9 cm and as wide as 7.5 cm. The veins of birch are pinnate and the petioles are mostly red. The leaves are all simple and alternate, with double serrations on the edges, triangular ellipses or triangular diamonds, which look a bit like cattail fans, and the leaves will turn yellow in autumn.

birch

Birch is a deciduous tree of Betula in betulaceae. Its trunk can reach 25 meters high and 50 centimeters thick. Its branches and leaves are sparse and graceful, especially its trunk is tall and straight, white and elegant, which is very eye-catching It is very beautiful to plant alone in parks, lawns, Chi Pan, lakes or roadsides. If planted in mountainous areas or hilly slopes, beautiful scenic forests can be formed.

Birch trees are produced in northeast China, north China, Henan, Shaanxi, Ningxia, Gansu, Qinghai, Sichuan, Yunnan and southeast Tibet. It grows on hillsides or forests at an altitude of 400-4 100 meters and is widely distributed. It is a pioneer tree species in the secondary forest.

Birch has strong adaptability to soil and likes acidic soil. It can grow in swamps, dry sunny slopes and wet shady slopes. There are patches of pure birch forests in Daxing 'anling, Xiaoxing 'anling and Changbai Mountain in China. It is also a common tree species in broad-leaved deciduous forests and coniferous and broad-leaved mixed forests in the mountainous areas of North China Plain and Loess Plateau, and it is also a common tree species in the Russian Far East, East Siberia, East Mongolia, North Korea and Japan.