人们总是习惯将杨柳放在一起谈论。其实杨柳属于不同的树种。柳树一般长在河边,枝条低垂,叶子像小刀;杨树则枝条向上生长,叶子较宽。传说隋炀帝下令在堤岸上多种垂柳,他姓杨,就赏赐垂柳和他同姓,名为“杨柳”。但此说无据可考,因为早在先秦的《诗经》中就有了“杨柳依依”的句子。杨树和柳树的果实都是带白毛的,称为杨花或柳絮,成熟时随风飘舞,形成了“春城无处不飞花”的景色。因为这个共同特点,所以人们习惯上把杨柳并称。 People are always used to talking about willows. In fact, willows belong to different species. Willow trees generally grow in the river, branches hanging down, leaves like a knife; poplar branches upward growth, leaves wide. Legend Sui Emperor ordered a variety of weeping willows on the embankment, his surnamed Yang, will reward weeping willows and his surname, called “willow ”. However, there is no basis for this test, because as early as the pre-Qin’s “Book of Songs” there is a “Willow by Yi” sentence. Poplar and willow fruit are white-haired, known as the poplar or catkins, mature wind fluttering, forming a “Spring City fly everywhere ” scenery. Because of this common feature, so people used to put willow and said.