The (synonym sect. ''Lepidobalanus''). Europe , Asia , north Africa , North America . Styles short; acorns mature in 6 months, sweet or slightly bitter, inside of acorn shell hairless.
- '' Quercus Alba '' - White Oak - eastern North America
- '' Quercus Aliena '' - Oriental White Oak - eastern Asia
- '' Quercus Arizonica '' - Arizona White Oak # - southwestern U.S., nw. Mexico
- '' Quercus Austrina '' - Bluff Oak - southeastern North America
- '' Quercus Berberidifolia '' - California Scrub Oak - California
- '' Quercus Bicolor '' - Swamp White Oak - eastern & midwestern North America
- '' Quercus Boyntonii '' - Boynton's Post Oak - south central North America
- '' Quercus Cerrioides '' - Roble cerrioide - Peninsula Iberica, Catalanas y Alto Aragón, Navarra y Mallorca.
- '' Quercus Chapmannii '' - Chapmann Oak - southeastern North America
- '' Quercus Cornelius-mulleri '' - Muller Oak - southwestern North America
- '' Quercus Copeyensis '' - Costa Rica , Panama
- '' Quercus Depressipes '' - Davis Mountain Oak - Texas
- '' Quercus Dilatata '' - Moru Oak - Himalaya
- '' Quercus Douglasii '' - Blue Oak - California
- '' Quercus Dumosa '' - Coastal Scrub Oak - southern California
- '' Quercus Durata '' - Leather Oak - California
- '' Quercus Engelmannii '' - Engelmann Oak # - southwestern California
- '' Quercus Faginea '' - Portuguese oak - southwestern Europe
- '' Quercus Fusiformis '' - Texas Live Oak or Plateau Live Oak - south central North America
- '' Quercus Gambelii '' - Gambel Oak - southwestern North America
- '' Quercus Garryana '' - Garry Oak - western North America
- '' Quercus Geminata '' - Sand Live Oak # - southeastern North America
- '' Quercus Grisea '' - Gray Oak - south central North America
- '' Quercus Havardii '' - Havard Oak, Shin Oak - south central North America
- '' Quercus Hinckleyi '' - Hinckley Oak - Texas
- '' Quercus Hondurensis '' - Honduras Oak # - Honduras
- '' Quercus Ilex '' - Holm Oak # - southern Europe, northwestern Africa
- '' Quercus Intricata '' - Intricate Oak - Texas
- '' Quercus John-tuckeri '' - Tucker's Oak - southwestern North America
- '' Quercus Laceyi '' - Lacey Oak - south central North America (Texas)
- '' Quercus Lanata '' - Woolly-leaved Oak # - Himalaya
- '' Quercus Leucotrichophora '' - Banj Oak # - Himalaya
- '' Quercus Lobata '' - Valley Oak or California White Oak - California
- '' Quercus Lyrata '' - Overcup Oak - eastern North America
- '' Quercus Macrocarpa '' - Bur Oak - eastern and central North America
- '' Quercus Mohriana '' - Mohr Oak - southwestern North America
- '' Quercus Michauxii '' - Swamp Chestnut Oak - eastern North America
- '' Quercus Minima '' - Dwarf Live Oak # - southeastern North America
- '' Quercus Mongolica '' - Mongolian Oak - eastern Asia
- '' Quercus Montana '' - Chestnut Oak - eastern North America (syn. ''Q. prinus'')
- '' Quercus Muhlenbergii '' - Chinkapin Oak - eastern, central, and southwestern US (West Texas and New Mexico ), northern Mexico
- '' Quercus Oblongifolia '' - Mexican Blue Oak # - southwestern U.S., nw. Mexico
- '' Quercus Oglethorpensis '' - Oglethorpe Oak - southeastern North America
- '' Quercus Peduncularis '' - # - Central America
- '' Quercus Petraea '' - Sessile Oak - Europe
- '' Quercus Polymorpha '' - Monterrey Oak # - Mexico and extreme S. Texas
- '' Quercus Prinoides '' - Dwarf Chinkapin Oak - eastern North America
- '' Quercus Pubescens '' - Downy Oak - Europe
- '' Quercus Pungens '' - Sandpaper Oak # - south central North America
- '' Quercus Robur '' - Pedunculate Oak or English Oak - Europe, West Asia
- '' Quercus Rugosa '' - Netleaf Oak # - southwestern U.S., nw. Mexico
- '' Quercus Sadleriana '' - Deer Oak - sw. Oregon, northern California
- '' Quercus Stellata '' - Post Oak - eastern North America
- '' Quercus Toumeyi '' - Toumey Oak - southwest New Mexico
- '' Quercus Turbinella '' - Scrub Live Oak # - southwestern North America
- '' Quercus Vaseyana '' - Vasey Oak - southwestern North America
- '' Quercus Virginiana '' - Southern Live Oak # - southeastern North America
Europe, Asia, north Africa. Styles long; acorns mature in 6 months, bitter, inside of acorn shell hairless (closely related to sect. ''Quercus'' and sometimes included in it).
Europe, Asia, north Africa. Styles long; acorns mature in 18 months, very bitter, inside of acorn shell hairless or slightly hairy.
The . Southwest USA & northwest Mexico. Styles short, acorns mature in 18 months, very bitter, inside of acorn shell woolly.
The (synonym sect. ''Erythrobalanus''). North, Central & South America. Styles long, acorns mature in 18 months, very bitter, inside of acorn shell woolly.
# Species with Evergreen foliage (" Live Oak s") are tagged #. Note that the change from deciduous to evergreen character (or vice-versa) has evolved on numerous occasions in ''Quercus'', and does not necessarily indicate that the species concerned are closely related.
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