What is Hazel?
{{Italictitle}} {{automatic taxobox |name = Hazel |image = Corylus avellana 0001.JPG |image_caption = [[Corylus avellana|Common hazel]] (''Corylus avellana'') |taxon = Corylus |authority = [[Carl Linnaeus|L.]] |synonyms_ref = <ref>[http://apps.kew.org/wcsp/synonomy.do?name_id=47827 Kew World Checklist of Selected Plant Families]</ref> |synonyms = ''Lopima'' <small>Dochnahl</small> }} '''Hazel''' is a [[genus]] of [[tree]]s and [[shrub]]s, in the [[Betulaceae|birch family]]. There are 50 to 80 [[species]], in four [[genus (biology)|genera]]. They are native to the [[temperate]] regions of the [[northern hemisphere]]. ==References== {{reflist}} [[Category:Betulaceae]] [[Category:Trees]] [[Category:Shrubs]] {{biology-stub}}