Abstract
The essential oil contents of the fruit and seeds of Pycnocycla nodiflora Decne. ex Boiss. growing wild in southern Iran were found to be 0.05% and 0.1% (v/w), respectively based on the fresh weight. The oils were analyzed by GC and GC–MS. Twenty-eight and twenty-seven constituents, representing 94.7% and 89.6% of the oils were identified, respectively. The major components of the P. nodiflora fruit oil were identified as E-sesquilavandulol (18.6%), spathulenol (11.9%), δ-cadinol (9.0%), t-cadinol (8.9%) and β-caryophyllene (7.9%), while the main components of that of the seeds were characterized as E-sesquilavandulol (17.2%), lavandulyl acetate (13.5%), β-caryophyllene (11.1%), bicyclogermacrene (10.5%), δ-cadinol (9.0%) and t-cadinol (6.8%).