The composition of essential oil isolated from Achillea eriophora, Achillea millefolium, Achillea biebersteinii and Achillea tenuifolia growing wild in the south west of Iran, was analyzed. A. eriophora, A. millefolium and A. tenuifolia essential oils were characterized by sabinene, 1, 8-cineole, terpinene-4-ol, ά –bisabolol, p-Cymene, β-pinene and α-pinene. The A. biebersteinii essential oil ...