Willow is divided into weeping willow and withered willow. Weeping willows, also called willows, are deciduous trees; Salix salicifolia, also known as Salix salicifolia, is a deciduous shrub. Willow willow, produced in China, Korea, Japan and other places. Beijing is widely planted in urban and rural areas. Cold tolerance, drought tolerance. Salix weeping willows are drought-resistant, water-resistant and moisture-resistant, and are wet-born positive tree species. I like to be born in wetlands on both sides of the river bank, and I won't die if I am flooded for a short time. High dry land and calcareous soil can also adapt. Germination early, defoliation late, growth fast, but not as cold-resistant as Salix matsudana.