Duan Duan
Also known as Chuan Duan. It comes from plants of the Dipsacaceae family. The medicinal part is the root, which generally takes three years to grow and is produced in mountains above 2,000 meters in altitude. The roots are soft without woody cores, and their fracture surfaces are dark green. They have functions such as nourishing liver and kidney, mending tendons, and regulating blood circulation. Produced in counties such as Changyang, Xingshan, and Zigui, with an output of about 262,400 kilograms, and exported to places such as Hong Kong and Singapore. (Yichang)
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