Abstract
Leutea kurdistanica Mozaff. from Apiaceae family is an endemic herb growing wild in Iran. The essential oil variability of a population of L. kurdistanica at different phenological stages, namely the vegetative and flowering stages was studied for the first time by GC-FID and GC-MS. A total of 26 components were identified at the vegetative and flowering stages representing 98.5 and 99.3 % (w/w) of the oil, respectively. The ranges of major constituents were as follow: α-asarone (50.5-62.5 %), elemicin (16.4-22.5 %), α-phellandrene (1.3-5.9 %) and α-pinene (1.6-5.4 %). α-Asarone can be used for a wide range of applications in pharmaceutical and food industries.