Genus: Hazel (Corylus)

Norwegian name: Hasselslekta

Systematics :

KingdomPlantae
Artificial group Vascular plant (Tracheophytes)
Superphylum  Spermatophyte
Phylum   Magnoliophyta
Subclass    Magnoliidae
Family     Betulaceae
Genus      Hazel (Corylus)
Species       Common Hazel (Corylus avellana)