Artemisia herba-alba Asso - Asteraceae - white wormwood, armoise herbe blanche (fr.)
Upright, shrubby perennial, 0.20-0.40m high, native to Morocco and the Mediterranean region; leaves grey-green, pinnately divided, covered with fine glandular hairs, strongly aromatic.
The essential oil of the herb is used in perfumery as armoise oil.
Major components of Artemisia herba-alba Asso essential oil obtained by hydrodistillation growing in eastern Morocco (Taforalt) were found to be camphor (43.0%), camphene (7.2%), 1,8-cineole (7.0%), filifolone (7.0%), borneol (4.8%), and bornyl acetate (3,7%).
[Imelouane, B., et al. „Essential oil composition and antimicrobial activity of Artemisia herba-alba Asso grown in Morocco.“ Banat's Journal of Biotechnology 1.2 (2010)]
(α + β) thujone
Oils of commerce contained mainly:
α-thujone (42.4%), β-thujone (17.0%), camphor (15.1%), and 1,8-cineole (4.4%):
α-thujone (46.0%)%, camphor (22.4%), β-thujone (8.6%).
Boissier, E.P., Voyage botanique dans le midi d’Espagne, vol.1 t.94 (1839-1845) [J.C. Heyland]