Artemisia oil (Armoise oil) is obtained by steam distillation of the herb Artemisia herba-alba Asso (Asteraceae) that grows wild in Northern Africa, mainly in Morocco, which produces ～30 t/yr, 70% of worldwide demand. It is a light yellow to yellow liquid with a light herbaceous odor characteristic of thujone. d2525 0.917–0.935; n20D 1.4600–1.4720; α20D ?25° to ?8°. The major components of artemisia oil are the ketones camphor (15–40%) and α- and β-thujone (together 70–25%). Since A. herba-alba exists as various chemotypes, the composition of the oil may vary widely. Artemisia oil is used in fairly large amounts in fine fragrances (e.g., for chypre notes).