Abstract Hymenocrater elegans Bunge was collected from Firoozkooh in northeast Iran in July 2003. Dried leaves of the plant were steam distilled in a Kaiser-Lang apparatus for 45 min. The oil was produced at the yield of 0.1% (based on dry weight). GC and GC/MS analysis of this oil revealed the presence of 33 compounds, among which germacrene D (10.2%), Î²-caryophyllene (9.7%), Î±-humulene (9.6%), Î²-bourbonene (7.1%) and germacrene B (6.9%) were the major constituents.