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Juke. Perennity herbs, 60 to 150 cm high. Stems stand upright. Leaves are mutually spawned, egg-shaped to pin-shaped, with large jagged or deep cracks on the edges, wedges at the base, and handles. Head-shaped flower sequence single or several sets born at the top of stems, diameter 2.5 to 20 cm, depending on the variety, very different; Origin of China and Japan. Cultivation in China has a long history, from the beginning of the Jin Dynasty, has been more than 1600 years, varieties can be as many as thousands. Was selected as the city flower of Beijing. Chrysanthemums are divided into two categories: art chrysanthemum and medicinal chrysanthemum. Art chrysanthemums are mainly for ornamental use, a wide variety. The medicine chrysanthemum head flower is small, the change is not big, yellow or white, such as hang chrysanthemum, white chrysanthemum, pick the head flower after drying into the medicine, has the effect of loose wind clear heat, clear-eye flat liver. Reproduction is generally used by the interpolation method. Large chrysanthemums use yellow flower artemisinin, large seed artemisinin, etc. as birch grafting.
