artemisia UK /ˌɑː.tɪˈmɪ.zɪə/US /ˌɑɹ.təˈmɪ.zi.ə/ noun1 •Any of many aromatic flowering plants of the genus Artemisia, including wormwood, sagebrush, and tarragon, often used as traditional medicine, oral contraceptive and flavoring.In the event of anyone wishing to invoke the very Prince of Spirits, the following ingredients were prescribed to be burnt - Juice of Hypericon, Saffron, Artemisia, and the root of Valerian. — 1936 formsartemisias