“柳”在《辞海》中的解释为:杨柳科,属植物的泛称。落叶乔木或灌木,柳条柔韧,叶常狭长。《说文解字·木部》称“柳,小杨也;杨,蒲柳也”。明人李时珍在《本草纲目》卷三十五下中写道:“杨枝硬而扬起,故谓之杨;柳枝弱而垂流,故谓之柳。盖一类二种也……”通常北方人称柳,而南方人称杨柳。因此本文所论及的柳,实际上也包含了杨。柳树与人们的生活息息相关,自古以 “Willow ” in the “Cihai” in the explanation: Willow Division, is a generic term for plants. Deciduous tree or shrub, wicker flexible, often long and narrow leaves. “Explain Word Wood Department” said “Liu, Xiao Yang also; Yang, Pu Liu also ”. Ming Li Shizhen in the “Compendium of Materia Medica” volume thirty-fifth wrote: “Yang Zhi hard and raised, so that the Yang; willow branches weak and sagging, so that the so-called Liu. ... ”Northern people usually call Liu, while southern people call Willow. Therefore, the paper discussed in this article, in fact, also contains Yang. Willow and people’s lives are closely related, since ancient times