GC/MS analysis resulted in the identification of twelve compounds representing 99.15% of the total oil composition (Table 1). The main components were oxygenated sesquiterpenes, such as 10Hβ-9-oxo-agerophorone (37.03%), 10Hα-9-oxo-agerophorone (37.73%) and 9-oxo-10, 11-dehydro-agerophorone (23.41%). Other components such as phytol (0.09%), 1-heptatriacotanol (0.01%) and geranyl linalool (0.45%) were present in smaller amounts.