Genus: Quercus
- Section: Erythrobalanus, the red oaks
- Subsection: red oaks
- Quercus coccinea - Scarlet oak
- Quercus ellipsoidalis - Northern pin oak
- Quercus falcata - Spanish oak, aka southern red oak
- Quercus palustris - Pin oak
- Quercus rubra - Northern red oak
- Quercus shumardii - Shumard oak
- Quercus velutina - Black oak
- Subsection: shingle oaks
- Quercus phellos - Willow oak
- Quercus imbricaria - Shingle oak
- Subsection: live oaks
- Quercus agrifolia - Coast live oak
- Quercus chrysolepis - Canyon live oak
- Quercus virginiana - Live oak
- Quercus wislizenii - Interior live oak
- Subsection: red oaks
- Section: Leucobalanus, the white oaks
- Subsection: white oaks
- Quercus alba - White oak
- Quercus arizonica - Arizona white oak
- Quercus bicolor - Swamp white oak
- Quercus garryana - Oregon white oak
- Quercus lyrata - Overcup oak
- Quercus macrocarpa - Bur oak
- Quercus robur - English oak
- Quercus stellata - Post oak
- Subsection: chestnut oaks
- Quercus michauxii - Swamp chestnut oak
- Quercus muehlenbergii - Chinkapin oak
- Quercus prinus - Chestnut oak
- Subsection: white oaks
- Quercus acrodonta
- Quercus acuta - Japanese evergreen oak
- Quercus acutissima - Sawthorn oak
- Quercus aegilops
- Quercus aliena - Oriental white oak
- Quercus auricoma
- Quercus cerris - Turkey oak
- Quercus douglasii - Blue oak
- Quercus emoryi - Emory oak
- Quercus frainetto - Italian oak
- Quercus gambelii - Gambel oak
- Quercus grisea - Gray oak
- Quercus havardii - Sand shinnery oak
- Quercus ilex - Holm oak
- Quercus incana - Bluejack oak
- Quercus kelloggii - California black oak
- Quercus laevis - Turkey oak
- Quercus lanata
- Quercus laurifolia - Laurel oak
- Quercus litseoides
- Quercus lobata - Valley oak
- Quercus marilandica - Blackjack oak
- Quercus nigra - Water oak
- Quercus oblongifolia - Mexican blue oak
- Quercus petraea - Sessile oak
- Quercus pubescens - Downy Oak
- Quercus pungens - Sandpaper oak
- Quercus pyrenaica - Portuguese oak
- Quercus suber - Cork oak
- Quercus turbinella - Shrub live oak
- Quercus x turneri - Turner oak