Quercus agrifolia
Quercus agrifolia, Quercus agrifolia, Quercus agrifolia (California Live Oak), Quercus agrifolia (Coast Live Oak), Quercus agrifolia (Coast Live Oak)
Quercus alba
Quercus alba, Quercus alba (White Oak), Quercus alba (White Oak), Quercus alba (White Oak), Quercus alba (White Oak)
Quercus arizonica
Quercus arizonica, Quercus arizonica (Arizona Oak), Quercus arizonica (Arizona White Oak)
Quercus bicolor
Quercus bicolor, Quercus bicolor (Swamp White Oak), Quercus bicolor (Swamp White Oak), Quercus bicolor (Swamp White Oak), Quercus bicolor (Swamp White Oak)
Quercus chrysolepis
Quercus chrysolepis, Quercus chrysolepis (Canyon Live Oak), Quercus chrysolepis (Canyon Live Oak), Quercus chrysolepis (Canyon Live Oak)
Quercus coccinea
Quercus coccinea, Quercus coccinea (Scarlet Oak), Quercus coccinea (Scarlet Oak), Quercus coccinea (Scarlet Oak), Quercus coccinea (Scarlet Oak), Quercus coccinea (Scarlet Oak)
Quercus douglasii
Quercus douglasii, Quercus douglasii, Quercus douglasii (Blue Oak), Quercus douglasii (Blue Oak)
Quercus ellipsoidalis
Quercus ellipsoidalis, Quercus ellipsoidalis, Quercus ellipsoidalis (Northern Pin Oak), Quercus ellipsoidalis (Northern Pin Oak)
Quercus emoryi
Quercus emoryi, Quercus emoryi (Emory Oak), Quercus emoryi (Emory Oak), Quercus emoryi (Emory Oak)
Quercus falcata
Quercus falcata, Quercus falcata (Southern Red Oak), Quercus falcata (Southern Red Oak), Quercus falcata (Southern Red Oak), Quercus falcata var. falcata and var. pagodifolia
Quercus gambelii
Quercus gambelii, Quercus gambelii (Gambel Oak), Quercus gambelii (Gambel Oak), Quercus gambelii (Gambel Oak)
Quercus garryana
Quercus garryana, Quercus garryana (Garry Oak), Quercus garryana (Oregon White Oak), Quercus garryana (Oregon White Oak)
Quercus kelloggii
Quercus kelloggii, Quercus kelloggii (California Black Oak), Quercus kelloggii (California Black Oak), Quercus kelloggii (California Black Oak)
Quercus laevis
Quercus laevis, Quercus laevis (Turkey Oak), Quercus laevis (Turkey Oak), Quercus laevis (Turkey Oak)
Quercus laurifolia
Quercus laurifolia, Quercus laurifolia (Laurel Oak), Quercus laurifolia (Laurel Oak), Quercus laurifolia (Swamp Laurel Oak)
Quercus lobata
Quercus lobata, Quercus lobata, Quercus lobata (Valley Oak), Quercus lobata (Valley Oak)
Quercus lyrata
Quercus lyrata, Quercus lyrata (Overcup Oak), Quercus lyrata (Overcup Oak), Quercus lyrata (Overcup Oak), Quercus lyrata (Overcup Oak)
Quercus macrocarpa
Quercus macrocarpa, Quercus macrocarpa (Bur Oak), Quercus macrocarpa (Bur Oak), Quercus macrocarpa (Bur Oak)
Quercus marilandica
Quercus marilandica, Quercus marilandica (Blackjack Oak), Quercus marilandica (Blackjack Oak), Quercus marilandica (Blackjack Oak)
Quercus michauxii
Quercus michauxii, Quercus michauxii (Basket Oak), Quercus michauxii (Swamp Chestnut Oak), Quercus michauxii (Swamp Chestnut Oak), Quercus michauxii (Swamp Chestnut Oak)
Quercus muehlenbergii
Quercus muehlenbergii, Quercus muehlenbergii (Chinkapin Oak), Quercus muehlenbergii (Chinkapin Oak), Quercus muhlenbergii (Chinkapin Oak)
Quercus phellos
Quercus phellos, Quercus phellos (Willow Oak), Quercus phellos (Willow Oak), Quercus phellos (Willow Oak)
Quercus prinus
Quercus prinus, Quercus prinus (Chestnut Oak), Quercus prinus (Chestnut Oak), Quercus prinus (Chestnut Oak), Quercus prinus - Quercus montana (Chestnut Oak)
Quercus robur
Oak, Common - Herb Profile and Information, Quercus robur, Quercus robur, Quercus robur (Common Oak), Quercus robur (English Oak), Quercus robur (Pedunculate Oak, English Oak)
Quercus rubra
Quercus rubra, Quercus rubra (Northern Red Oak), Quercus rubra (Northern Red Oak), Quercus rubra (Northern Red Oak), Quercus rubra (Red Oak)
Quercus stellata
Quercus stellata, Quercus stellata (Post Oak), Quercus stellata (Post Oak), Quercus stellata (Post Oak), Quercus stellata (Post Oak)
Quercus turbinella
Quercus turbinella, Quercus turbinella, Quercus turbinella (Shrub Live Oak), Quercus turbinella (Shrub Live Oak)
Quercus velutina
Quercus velutina, Quercus velutina (Black Oak), Quercus velutina (Black Oak), Quercus velutina (Black Oak), Quercus velutina (Black Oak)
Quercus virginiana
Quercus virginiana, Quercus virginiana (Live Oak), Quercus virginiana (Live Oak), Quercus virginiana (Live Oak), Quercus virginiana (Southern Live Oak)
California Oak Mortality Task Force
Addresses the issue of elevated levels of oak mortality through research, management, education and public policy. Contains monthly updates, distribution maps, symptoms, and educational materials.
California Oaks
Descriptions and pictures of the oaks native to California from Las Pilitas Nursery.
California Oaks Foundation
Non-profit educational organization committed to preserving the state's oak forest ecosystem and its rural landscapes.
Common Oaks of Florida
Descriptions and illustrations of 19 species.
International Oak Society
Nonprofit organization dedicated to encouraging the study and cultivation of the true oaks (genus Quercus). News, events, and publications.
Key to the Species of Oaks Native to Middle Tennes
Summer key for 19 species. Includes images of leaves and acorns.
Oak Key
Identification keys based on characteristics of acorns or twigs for 12 New England species.
Quercus cerris L.
Collection of pictures of the Turkey oak.
Quercus havardii
Information on distribution and occurrence; value and use; characteristics; and fire ecology.
Quercus incana
Distribution and occurrence; value and use; characteristics; and fire ecology.
Quercus nigra
Distribution and occurrence; value and use; characteristics; and fire ecology.
Quercus oblongifolia
Information on distribution and occurrence; value and use; characteristics; and fire ecology.
Quercus palustris
Distribution and occurrence; value and use; characteristics; and fire ecology.
Quercus petraea
Collection of pictures of leaves, acorns, buds of Quercus petraea (Mattuschka) Liebl.
Quercus pungens
Information on distribution and occurrence; value and use; characteristics; and fire ecology.
Quercus shumardii
Distribution and occurrence; value and use; characteristics; and fire ecology.
Quercus wislizenii
Distribution and occurrence; value and use; characteristics; and fire ecology.