Artemisia annua (scientific name: Artemisia annua) is a plant of Artemisia in Compositae. It is distributed in Singapore, Laos, India, Cambodia, Vietnam, Indonesia, Taiwan Province Island, and Jiangsu, Hunan, Guizhou, Hubei, Guangxi, Guangdong, Zhejiang, Gansu, Yunnan, Sichuan, Fujian, Anhui, Jiangxi, Shaanxi, Henan and other places in Chinese mainland. It grows in areas above 3000 meters above sea level, mostly in wet places such as valleys, forests and forest margins.