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一、 引言 紫背菜Ｇｙｎｕｒａ ｂｉｃｏｌｏｒ ＤＣ．为菊科，土三七属，多年生草本植物。在我国南方各地如广东、广西、福建、云南、四川、台湾、浙江许多农村有少量栽培，多作为药用间或菜用［４］。其名称繁多：有的称两色三七草［２］、红菜（台湾）、红背菜、观音菜 （广
I. Introduction Gynura bicolor DC. For Compositae, soil thirty-seven, perennial herbs. In many parts of southern China, such as Guangdong, Guangxi, Fujian, Yunnan, Sichuan, Taiwan and Zhejiang, many rural areas have a small amount of cultivation, mostly used as medicinal or vegetable [4]. The name of many: Some said the two-color Panax notoginseng [2], red cabbage (Taiwan), red back vegetables, Kwun Yam dishes