IntroductionLamiaceae species are a well-known group of medicinal herbs that have been used in folk medicine worldwide and have frequently been subject to ethnopharmacological studies. The genus Sideritis L., Scutellaria L., and Ziziphora L. are all included in Lamiaceae family.Sideritis L. genus comprises about 150 species all over the world and is represented by 40 endemic taxa out of 53 in Turkey. A member of the genus, Sideritis libanotica subsp. linearis, is a perennial herb (González-Burgos et al., 2011; Guner et al., 2012). The infusion of S. libanotica subsp. linearis obtained mainly from dried leaves and flowers has been widely used in food industry as teas or flavoring agents and in traditional medicine for the treatment of mild diseases such as common cold (Dincer et al., 2017). The antioxidant, antimicrobial, cytotoxic, and enzyme inhibitory activities of this herb was reported previously with other members of the genus by Tunalier et al., (2004);Tepe et al., (2006);Demirtas et al., (2011);Dincer et al., (2017);Atas et al., (2019). According to these previous studies, linoleic, oleic, 6-octadecenoic, palmitic, and linoleic acids were identified as the major chemical components of aerial parts at flowering stage (Demirtas et al., 2011;Dincer et al., 2017).Scutellaria L. is a widespread genus throughout the world represented by 350 species (Paton, 1990