Four traditional Chinese medicines from Huaiqing include glutinous rehmannia, Chinese yam, the root of bidentate achyranthes and chrysanthemums, which are abundant in
County, Wuzhi, Buoai, Mengzhou, Qinyang. Located on the north bank of the Yellow River, this area belonged to the
Huaiqing during the Ming Dynasty. From which they received their name. It is recorded in the Compendium of Meteria Medica that glutinous rehmannia, as a medicine, has a history of over 1000 years in Mengzhou. Chinese yam has the function of promoting blood circulation and ventilating lungs, and strengthening the kidney. Being rich in oil, Glutinous rehmannia is valuable both as food and medicine. The root of bidentate achyranthes has the function of diuresis, strengthening the kidney and so on, while chrysanthemums can play a role in sterilization, relieving thirst, and nourishing the liver. On the other hand, chrysanthemums are rich in pigment, vitamin A and B, and amino acid; they are strong in flavor and can stand long stewing. Currently, over 5,000 tons of these Medicines are produced annually and the sales volume for export hits over 2,000 tons. The four traditional Chinese medicines of Huaiqing are not only known at home, but also receive praise from many foreigners. They are given as valuable gifts in Southeast Asia, and people in
Britain call them the “Medicines of China”.