紫背天葵,又名紫背菜、观音菜、观音苋、两色三七草、红玉菜、红毛番、红背菜、红蓊菜、红风菜、血皮菜、天青地红、地黄菜、脚目草等,为菊科紫背天葵属的半栽培种,宿根常绿草本植物。紫背天葵原产于我国南部地区及马来 Purple back sky Kwai, also known as purple backs, Kwun Yam dishes, Guanyiny amaranth, two-color Panax notoginseng, red cabbage, red hair Fan, red back vegetables, red cabbage vegetables, red vegetables, blood vegetables, Red, yellow vegetables, such as Foot Head grass, as Compositae purple back to the sunflower genus semi-cultivated, perennial herbaceous plants. Purple back sunflower native to southern China and Malay