Corylus avellana, the common hazel, is a species of hazel native to Europe and western Asia, from the British Isles south to Iberia, Greece, Turkey and Cyprus, north to central Scandinavia, and east to the central Ural Mountains, the Caucasus, and northwestern Iran.
A sweet and delicate musk-like odour is produced by the seed coat. The essential oil obtained from the plant is used as a food flavouring and in perfumery...