Abstract Aerial parts of Marrubium parviflorum subsp. oligodon were water distilled and the oil was analyzed by GC/MS. One hundred and thirty-nine compounds were identified representing 91â0% of the total components detected with hexadecanoic acid (15.4%), germacrene D (11.1%), (Î²-caryophyllene (10.0%) and (E)-Î²-farnesene (7.3%) as major constituents. Key Word Index: Marrubium parviflorum subsp. oligodon Labiataeessential oil compositionhexadecanoic acidgermacrene DÎ²-caryophyllene