The trunk of willow tree can be used as furniture, agricultural tools; willow buds can be dried and used to make tea; willow willow flakes dried and made into pillow; willow willow willow can be woven into a variety of handicrafts, baskets and so on. Willow belongs to a wide range of ecological amplitude of plants, the adaptability of the environment is very wide, light-loving, moisture-loving, cold-resistant, is the middle-growth wet tree species. Willow is mainly produced in temperate regions of the northern hemisphere, the frigid zone, tropical and southern hemisphere is very little, no wild species in Oceania.

Willow is suitable for a variety of different ecological environments, regardless of the mountains, plains, sand dunes, polar regions have willow growth. Willow has been cultivated in China for more than 4,000 years, can be traced back to the ancient Shu Yidu king sealing tree boundaries. King Yidao planted the most extensive area on the land of Yidao's former capital, easy to survive, easy to recognize, good-looking and unique style of willow trees as the boundaries of the ancient city of Yidao.

Ancient Shu people began to plant willow trees, the beginning of spring, ten thousand trees spit green, willow shake easy, ten thousand willows to welcome the spring, in the city of Wenjiang, also known as the Willow City. It is a large deciduous tree, alias willow. Willow family willow deciduous trees or shrubs, green leaves, slender willow branches, soft pendulous, sex like wetlands; bark tissue thick, longitudinal cracks, the old age of the center of the trunk is more rotten and hollow.

Willow easy to propagate, cultivation method is simple, strong vitality, can beautify the environment, life, environmental protection, medicine and other aspects of life also has the use of "four" greening species.