Abstract
The essential oils of Achillea aucheri Boiss. and A. kellalensis Boiss. et Hausskn., which are endemic to Iran, have been analyzed by GC and GC/MS. The oil of A. aucheri was found to contain 1,8-cineole (40.7%), α-terpineol (11.3%), β-pinene (10.8%) and α-pinene (10.3%) as major constituents. The oil of A. kellalensis was characterized by a higher amount of camphor (34.0%), borneol (12.6%), α-thujone (12.5%), 1,8-cineole (11.3%), bornyl acetate (7.3%) and camphene (7.0%).