Fast-growing willow, also called bamboo willow and fast-growing bamboo willow, is a plant of the Willow family and the genus Salix. Trees with great growth potential. The bark is green and smooth when it is young. The apical advantage is obvious, the axillary buds have strong sprouting power, the branches are earlier, and the angle between the lateral branches and the main stem is 30-45 degrees. The crown is tower-shaped, with even branches. The leaves are lanceolate, with single leaves alternate. The leaves are 15-22cm long and 3.5-6.2cm wide. The apex is long and acuminate, the base is wedge-shaped, and the edge has obvious fine serrations. The front of the leaf is green, the back is off-white, and the petiole is reddish and shorter. It is a new hybrid of willow, which has been selected, bred and domesticated for many times. Its shape, lateral branches, and dense planting are similar to bamboo, so it is named bamboo willow. On the basis of inheriting many advantages of traditional willow varieties, bamboo willow further improves the fast-growing and resistance of this species. Bamboo willow has a wide range of uses and is an ideal tree species for industrial raw material forests, large-diameter timber cultivation, street trees, landscaping and farmland shelter forests. Bamboo willows are divided into different strains according to different adaptation areas and characteristics. only Zhuliu No. 3, Zhuliu No. 5, and Zhuliu No. 7 are preserved.

Bamboo willow is a new willow hybrid variety. After nearly four years of selection, breeding and domestication, bamboo willow has inherited many advantages of traditional willow varieties, and further improved the fast-growing and resistance of this species. This variety is beneficial to change the single situation of fast-growing tree species in my country, promote the diversified development of fast-growing and high-yield forests, and will bring broader development space to the development of my country's forestry industry.