Quercus

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 Tennessee - - 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 canariensis - - Diagnostic features, habitat and distribution of Algerian oak.

Quercus cerris - - Photograph, diagnostic features, habitat and distribution of Turkey oak.

Quercus cerris L. - - Collection of pictures of the Turkey oak.

Quercus coccifera - - Photographs of flowering leafy shoots.

Quercus fontanesii - - Image of foliage and catkins.

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 oleoides - - Description of this evergreen tree, with photographs of leaves, flowers and bark.

Quercus palustris - - Distribution and occurrence; value and use; characteristics; and fire ecology.

Quercus petraea - - Photograph, diagnostic features, habitat and distribution of sessile oak.

Quercus petraea - - Information on the Durmast Oak and photographs of its foliage.

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.

Sessile Oak: Quercus petraea - - Illustrated description of this species, its associated wildlife and its timber.