Artemisia and wormwood can be distinguished from the source, odor, stem and leaf morphology, efficacy and other aspects. 1. Source: Artemisia annua comes from the dried above-ground parts of the plant Artemisia annua, family Asteraceae; Mugwort comes from the dried leaves of the plant Ai. 2. Taste: mugwort taste pungent, bitter, warm, gas fragrance; Artemisia annua taste bitter, pungent, cold, gas fragrance special. 3. Stem and leaf morphology: Artemisia annua is shorter, the stem is more cylindrical, slightly hard, easy to break, the leaf blade is narrow and long, and the leaf blade is smaller; mugwort is ovate-elliptic, the edge of the irregular coarse serration, soft. 4. Efficacy: Artemisia annua can clear deficiency heat, relieve summer heat, remove bone vapor, cut off malaria, and reduce yellow; mugwort can warm the menstruation and stop bleeding (warming the human body’s meridians and stopping bleeding in the body), dissipate cold and relieve pain (relieving pain by removing cold in the body), regulate menstruation, stabilize the fetus, and dispel dampness and relieve itching when used externally. If you need to use the above herbs, please do so under the guidance of a physician.