phytochemical of essential oil of stachys lavandulifolia vahl. collected from a natural habitat in western isfahan, iran

background & aim: the lamiaceae family is one of the largest and most distinctive families of flowering plants, with about 220 genera and almost 4000 species worldwide. the genus stachys is one of the largest representative genera of the lamiaceae family and includes about 300 species, in the subtropical and tropical regions of both hemispheres. in iran this genus is represented by 34 species. isfahan province has different medical plants such as species stachys lavandulifolia vahl. this study was aimed at investigating of phytochemical of s. lavandulifolia in the west of isfahan province. experimental: the aerial parts of s. lavandulifolia were air-dried. the essential oil of the plant was isolated by hydro-distillation with a yield of 0.25% (v/w). the chemical composition of volatile oil was analyzed by capillary gc and gc/ ms. results & discussion: result indicated that main components were germacrene-d (15.96%), thymol (14.64%), γ-cadinene (13.33%), α-pinene (7.80%), and trans-caryophyllene (6.91%). industrial and practical recommendations: stachy lavandulifolia vahl is a medical plant that can be a potential source of monoterpenes and sesquiterpenes.