| Latin Name | Common Name | Family | Synonyms | Edibility Rating | Medicinal Rating |
| Corylus americana | American Hazel | Betulaceae | | 3 | 1 |
| Corylus avellana | Common Hazel, Common filbert, European Filbert, Harry Lauder's Walking Stick, Corkscrew Hazel, Hazel | Betulaceae | | 5 | 2 |
| Corylus avellana pontica | | Betulaceae | C. colurna. non L. C. pontica. | 4 | 0 |
| Corylus chinensis | Chinese Hazel | Betulaceae | C. colurna chinensis. | 2 | 0 |
| Corylus colurna | Turkish Hazel, Chinese hazelnut, Turkish Filbert, Turkish Hazel | Betulaceae | | 3 | 1 |
| Corylus cornuta | Beaked Hazel, California hazelnut, Turkish Filbert, Turkish Hazel | Betulaceae | C. rostrata. | 3 | 1 |
| Corylus cornuta californica | California Hazel | Betulaceae | C. californica. (A.DC.)Sharp. C. rostrata californica. | 3 | 0 |
| Corylus fargesii | | Betulaceae | | 2 | 0 |
| Corylus ferox | Himalayan Hazel, Tibetan hazelnut | Betulaceae | | 2 | 0 |
| Corylus heterophylla | Siberian Filbert | Betulaceae | | 3 | 1 |
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