Qi'ai (Qichun Wormwood Leaves) is produced in Qichun County of Hubei Province. Li Shizhen, the famous medical scientist in the Ming Dynasty, coined the name "Qi'ai" in Compendium of Materia Medica.
Considered to have bitter and pungent properties, and rich in volatile oil, Qi'ai is the top choice of acupuncture treatment. Qi'ai has the functions of increasing the bloody supply, eliminating cold and dampness, relieving cough and diminishing inflammation.
Since the implementation of the protection of geographical indication products, Qianchun county has continually carried out large-scale planting and Qi'ai products R&D, with an annual output value of more than 1.5 billion yuan. (Courtesy of the Protection and Coordination Department of CNIPA)