八仙花花型独特,一头八朵,聚作一团,古人便展开联想,把民间流传的八仙故事附会上来,说犹如八仙聚在一起,因而得聚八仙之名。 八仙花与扬州的琼花极似,并且据说琼花不可他移,只有接八仙根上才能活。于是,在历史上就发生了一桩扯不清的八仙、琼花之辨的公案。后来,宋人郑兴裔站出来,专作一篇《琼花辨》,说琼花与八仙花“若骤然过目,大率相类,及细观熟玩,不同者有三:琼花大而辨厚, Hydrangea flower unique, a head 8, together as a group, the ancients will start associating, the story of the Eight Immortals attached to come up, saying that like gathering together as the Eight Immortals, and thus get together in the name of the Eight Immortals. Hydrangea flower and Yangzhou Qionglai very much, and is said to move Qionghua, only to take the root of the Eight Immortals to live. Thus, in history there has been a puzzled Eight Immortals, Qionghua discrimination case. Later, the Song Cheng Xing-yi stood up and wrote an article entitled “Qiong Hua identified,” said Qionghua and Hydrangea "if suddenly looked over the same rate, and the fine cooked, there are three different: large and thick Qionghua thick ,