Corylus

Corylus avellana

European filbert

Corylus chinensis

Chinese filbert

Corylus colchica

Corylus × colurnoides

Corylus fargesii

Corylus ferox

Himalayan hazel

Corylus heterophylla

Siberian filbert

Corylus jacquemontii

Indian tree hazel

Corylus maxima

Giant filbert

Corylus potaninii

Corylus wangii

Corylus yunnanensis

Yunnan hazel

Corylus sect. Corylus

Corylus subsect. Siphonochlamys

Corylus subsect. Corylus

Corylus kachetica

Corylus formosana

Corylus sect. Avellana

Corylus subg. Phyllochlamys

Corylus harrimani