紫薇属千屈菜科，人们俗称它“怕痒树”，是树木中一种奇特的树种，为花叶乔木，又名无皮树、满堂红、百日红。由于花期特长， 7月至 10月花开不断，故名百日红。 　　宋代诗人杨万里诗赞颂：“似痴如醉丽还佳，露压风欺分外斜。谁道花无红百日，紫薇长放半年花。”明代薛蕙也 Lagerstella Lythraceae, people commonly known as “itch tree”, is a peculiar tree species, as mosaic tree, also known as the skinless tree, full house red, hundred days red. Because of the flowering specialty, July to October bloom, hence the name hundred days red. Song Wanli poet Yang Wanli’s poem praises: “like a crazy as good as drunk, exposing the wind bully diagonally. Who do not spend red one hundred days, Ziwei long bloom six months.” Ming Xue Hui