Alias: Li Jiang, Li Chao, Qiu Weichun, Yu Rong, Li Shi, Boneless Flower, Black Flower, Red Medicine, etc. Paeonia lactiflora is a kind of economic plant which can be used as medicine and ornamental. Paeonia lactiflora is a traditional famous flower in China. Suitable for arranging special flower beds, flower borders, or planting on forest edges, rocks and courtyards, as well as potted plants and providing fresh cut flowers. The tuberous root of Paeonia lactiflora can be used as medicine. Cultivated Paeonia lactiflora contains paeoniflorin, paeonol, β-sitosterol, benzoic acid, calcium oxalate, etc., and is made by digging roots and scraping skin. Slightly cold, bitter and sour, it has the functions of regulating liver and spleen and nourishing blood. Indications include abdominal pain, hypochondriac pain, dysentery, irregular menstruation, metrorrhagia, etc. Wild Paeonia lactiflora, whose roots are dug up and washed, becomes Paeonia lactiflora, which is slightly cold and bitter, and has the function of cooling blood and removing blood stasis. The oil content of seeds is about 25%, which is used to make soap and paint.