| Regno | Plantae |
| Sottoregno | Tracheobionta |
| Superdivisione | Spermatophyta |
| Divisione | Magnoliophyta |
| Classe | Magnoliopsida |
| Ordine | Fagales |
| Famiglia | Fagaceae |
| Genere | Quercus |
Quercus is a genus of about 500 species of deciduous and evergreen trees and shrubs in the family Fagaceae, native to the Northern Hemisphere and bearing acorns.