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Editor's Picks

Quercus sontraensis
Quercus sontraensis grows in the Son Tra Peninsula
Roderick Cameron | Oct 19, 2022
Lobed leaf on Quercus rugosa
We know that some oaks, particularly Quercus robur, can...
Allen Coombes | Oct 18, 2022
Shaun Haddock receives an award for Eike Jablonski
Service awards recognize contributions to genus Quercus and...
Shaun Haddock | Oct 14, 2022

Plant Focus

Quercus tonduzii with acorn
An oak found only on a volcano in Costa Rica

Donate to Conserve Oaks!

Quercus arkansana
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In response to the overwhelming support of oak research and conservation expressed by our members, the IOS launched its Oak Conservation and Research Fund