abstract the chemical composition of essential oils isolated from fresh flowers and aerial parts of thymus hirtus willd was analyzed using gc and gc/ms. forty-six components were identified in the oil of each organ. camphor occurred as the major constituent of the aerial part oil, while -pinene was the most notably dominating compound in the flower oil. biological activities of the indicated oils were evaluated against eight bacteria, nine phytopathogenic, and 15 human pathogenic fungi.