Abstract Dried aerial parts of Echinophora species growing in Turkey, namely, E. tenuifolia L. subsp. sihthorpiana (Guess.) Tutin, E. tournefortii Jaub. et Spach., E. orientalis Hedge et Lamond, E. chrysantha Freyn et Sint. (endemic), E. trichophylla J. E. Smith (endemic) and E. carvifolia Boiss. et Bal (endemic) were water distilled and the oils were analyzed by GC/MS. The oil of E. tenuifolia subsp. sihthorpiana contained α-phellandrene (15.5%), p-cymene (11.0%) and methyl eugenol (58.7%); the oil of E. tournefortii contained α-pinene (9.6%) and caryophyllene oxide (12.8%); the oil of E. chrysantha contained α-phellandrene (47.7%) and β-phellandrene (8.2%); the oil of E. trichophylla contained sabinene (27.3%) and 2,6-dimethyl-1,3(E),5(E),7-octatetraene (13.7%) the oil of E. carvifolia contained β-caryophyllene (5.3%) and germacrene D (31.1%) and the oil of E. orientalis contained myrcene (34.2%) and p-cymene (18.9%) as major components.