Corylus heterophylla Fisch. ex Trautv.

Asian Hazel, Siberian Filbert, Siberian Hazelnut

Corylus avellana L.

Common Filbert, Common Hazelnut, European Filbert, European Hazelnut

Corylus chinensis Franch.

Chinese Filbert, Chinese Hazel

Corylus colurna L.

Turkish Filbert, Turkish Hazelnut

Corylus cornuta Marshall

Beaked Filbert, Beaked Hazelnut

Corylus americana Walter

American Filbert, American Hazelnut, Hazelnut

Corylus colurna var. chinensis

Corylus papyracea Hickel

Corylus sieboldiana Blume

Corylus sieboldiana var. mandshurica (Maxim.) C.K.Schneid.

Manchurian Hazelnut

Corylus mandshurica

Corylus avellana var. avellana

Corylus avellana var. pontica

Corylus cornuta ssp. californica

Corylus cornuta ssp. cornuta

Corylus heterophylla var. heterophylla

Corylus heterophylla var. sutchuenensis

Corylus jacquemontii Decne.