Hazel

Hazel is a genus of trees and shrubs, in the birch family. There are 50 to 80 species, in four genera. They are native to the temperate regions of the northern hemisphere.

Hazel
Common hazel (Corylus avellana)
Scientific classification
Unrecognized taxon (fix):	Corylus
Synonyms
Lopima Dochnahl

Hazel Media

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  Young male catkins of Corylus avellana

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  Hazel coppice in winter at Bubbenhall in Warwickshire, England

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  Corylus fargesii, Arnold Arboretum, Jamaica Plain, Boston, Massachusetts, USA.

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  Male catkins (common hazel)

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  Female flower (common hazel)

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  Leaves and nuts with spiny husks (Turkish hazel)

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  Lots of hazelnuts

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  Closeup of a male hazelnut flower using autofluorescence microscopy.