Abstract Prangos ferulaceae which is quite common in the Nemrut Caldera, declared as the Ramsar area in Bitlis Province, Turkey was collected from the natural habitats. Using the hydrodistylation method, the yield of essential oil was determined as 0.5% (v/w) in the fruits, and 0.6% (v/w) in the leaves. Essential oil analyzes of the fruits and leaves of this species were made by GC/GC-MS. In total, 47 and 29 components were determined as 94.4% and 93.4% of the oil, respectively. In fruit essential oil, β-elemene 26.9%, β-phellandrene 18.9%, α-terpinolene 14.2%, and α-phellandrene 9.7%, while in leave essential oil β-elemene 48.9%, α-terpinolene 14.6%, and ethylbenzene 9.7% were found as the major compounds. In addition, quantitative and qualitative differences were found in the essential oil composition in different parts of this species. Furthermore, this plant is widely used in livestock in Van and Bitlis provinces, while it is also consumed as vegetable. In addition to cooking, the brine is also made. Local people call this plant as “Heliz”. The brine is cooked with egg and a dish with a local name as “cag” is made.
Keyword: Prangos ferulacea, Apiaceae, Essential oil, β-elemene.