<p>: The common daisy flower (Bellis perennis) is a plant belonging to the Asteraceae family.Although daisy is naturally spread in Europe, it can be found in most parts of the world. This flower can befound up to 1600 meters above sea level and grows in moist areas and forests. In this study, the daisiescollected from the Isparta and Aydın regions in Turkiye. Solvent-free microwave-assisted extraction waspreferred as the method of oil extraction. Because, compared to other methods, this method is fast, nosolvent is used, it is controllable, thermal degradation is prevented and the oils obtained can be analyzeddirectly by GC-MS without any processing. Daisy flowers were subjected to solvent-free microwaveextraction at 800 W power for 45 minutes, and 0.82% oil content was obtained in the flowers of the Ispartaregion, while 0.74% oil content was obtained in the oils of the Aydın region. The essential oil componentsof these oils were then analyzed by GC-MS. According to the results obtained, the major compounds indaisy flowers collected from Isparta region were γ-muurolene (26.75%), germacrene-D (9.07%), ntetracosane (6.24%), t-cadinol (4.78%), trans-α-farnesene (4.27%) and trans-caryophyllene (3.97%), whilethe major compounds in daisy flowers from Aydın region were germacrene-D (8.44%), n-tetracosane(7.93%), α-linalool (7.88%), β-pinene (6.21%), α-eudesmol (5.69%), trans-α-farnesene (5.19%) and nheptacosane (5.18%). These findings show that daisy flowers has very different essential oil compounds inAydın and Isparta regions. Therefore, it was determined that the environment of the plants has a veryimportant effect on their essential oil compounds.</p>