Chemical constituents of the essential oils of different stages of the growth of Stachys lavandulifolia Vahl. from Iran.

The essential oil of the aerial parts of different stages of growth as pre-flowering, flowering and post flowering of Stachys lavandulifolia Vahl (Lamiaceae) were isolated by hydro distillation. The chemical composition of volatile oil was analyzed by capillary GC and GC/MS. The main components were found to be: alpha-pinene) 27.25, 25.66, 8.52%), myrcene (17.33, 9.33, 23.85%), beta-phellandrene (21.96, 37.49, 12.58%), beta-caryophylene (14.3, 8.38, 16.86%).