Family Corylaceae
Betulaceae, or the Birch Family, includes six genera of deciduous nut-bearing trees and shrubs, including the birches, alders, hazels, hornbeams and hop-hornbeams, numbering about 130 species.Genera in the family Corylaceae of plants
Carpinus - The common English name of "hornbeam" derives from the hardness of the wood and the Old English beam, a tree .
Corylus - The hazels are a genus of deciduous trees and large shrubs native to the temperate northern hemisphere.
Ostrya - Ostrya is a genus of eight to ten small deciduous trees belonging to the birch family Betulaceae.