Scientific name: Betula platyphylla Suk. Family: Birch Birch Distribution: produced in the Northeast, Xiaoxing'anling, Changbai Mountain and high mountains in North China; vertical distribution in the northeast at an altitude of 1000m below, 1300-2700m in North China. The Soviet Union is also located in eastern Siberia, North Korea and northern Japan. Morphological characteristics: deciduous trees, up to 25m, breast diameter 50cm; crown oval, bark white, peeling layered paper, lenticels yellow. Branchlets fine, reddish-brown, glabrous, covered with white wax. Leaves triangular-ovate or rhomboid-ovate, apex acuminate, base broadly cuneate, margin irregularly serrate, lateral veins 5-8 pairs, sparsely adaxially oil glands, glabrous or veins hairy. Fruit sequence solitary, pendulous, cylindrical. Nuts are small and flat with wide wings on both sides. Flowering from May to June; 8-10 months fruit ripening. Ornamental features and garden use: Birch branches and leaves are beautiful and graceful, especially the trunk is straight, white and elegant, and it attracts people's attention. Solitary planting, planting in the garden, park lawn, poolside, lakeside or planting on the roadside are quite beautiful. If they are planted in hilly or hilly areas, they can form a beautiful landscape forest. Folding Half Face Mask,Disposable Face Cover for Self Use,Medical Kn95 Face Mask,Anti-fog Haze Dust Proof Face Dongguan Keyutai Mask Co., Ltd. , https://www.maskkytai.com