Euonymus japonicus is a kind of sub arbor deciduous tree. Its shape is vertical branch type. It grows fast and has natural shape. It is umbrella like and cone-shaped. The bark is smooth and grayish brown, the branches are curly and drooping, and the leaves are oval, smooth and bright. The flowers grow on the axils of the branches, and the flowering period is from March to June. It is one of the main tree species for landscaping and ornamental.
Ulmus pumila is a cultivated species of elm, which grows rapidly in Northeast and Northwest China. It is resistant to cold and drought. Because the main root is very deep and the lateral root is developed and has strong vitality, it can grow well in poor and saline soil. The bark is gray, with longitudinal cracks on the surface. The branches are hairless, and the leaves are oval shaped. The middle and lower parts of the leaves are wide, with a sharp top and a slanted bottom. One side of the leaves is wedge-shaped, and the other side is round to half heart shaped, with serrations on the edge of the leaves. Flowers will not open until the leaves wither. The flowering period is from March to June.
Ulmus pumila mainly grows in the northeast of Xinjiang and other places. The plant is 30 meters high and straight as a whole. Because the leaves are wide, there are stripes on the leaves, and the edges of the leaves are zigzag, so it is called Ulmus pumila, which has strong growth force and is mostly used for sand control.
Hangzhou elm is a kind of deciduous tree, with a height of more than 20 meters. It is mainly distributed in Jiangnan area. Widely used, can make furniture, floor, vehicles and buildings.
