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The Latest Planting Methods and Cultivation Techniques of Qingdai Explained
Qingdai, also known as woad (Isatis indigotica), blue dew, Baphicacanthus cusia, Polygonum tinctorium, etc., is a plant of the Polygonaceae family. Qingdai is also an excellent traditional Chinese medicinal herb, often used for clearing heat and detoxifying, cooling the blood and reducing spots, and purging fire and calming fright. Of course, it also has certain industrial uses and can be used for printing and dyeing; its