Description: An herb that has been used in traditional Chinese medicine and noted for its compounds that can effectively treat malaria. Sweet Annie (Artemisia annua L., Asteraceae), also called sweet wormwood, is sometimes referred to by its Chinese name qing hao (green herb). Artemisinin, and some of the related compounds derived directly from the herb, are sometimes referred to as quinghaosu (extract of green herb). These compounds, and their synthetic derivatives, have been described in The New York Times as 'trikingly effective against malaria'. Who approves Artemisinin for Malaria in Africa.