Native to the North Temperate Zone, there are several species of the tree. The tree is also called filbert and belongs to the Betulaceae family. Hazels are popular ornamental trees due to their rich-colored autumn foliage. They produce masses of yellow male catkins and smaller red clusters of female flowers in late winter. The brown, roundish nuts are partly or entirely enclosed in husks.
Our hazelnut oil comes from the edible seeds of the European variety (Corylus avellana).
Hazelnuts are an important commercial c