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Service awards recognize contributions to genus Quercus and to the IOS
San Antonio to Las Cruces: oaks and more
Oaks and other attractions, from Albuquerque to Las Cruces.
Four days with the oaks of Arizona
The traditional triennial gathering took place in the shadows of the Organ Mountains.
An oak found only on a volcano in Costa Rica
A single specimen found!
Fire takes the National Champion Gray Oak
Importing acorns for ex-situ conservation
A threatened oak found in northern Arizona and southern Utah.
Czech artist Petr Václavek has created a fantasy world inhabited by little creatures made from acorns and oak twigs
Our third post of poems featuring oaks again has Quercus virginiana (southern live oak) as its theme, this time in a poem by Walt Whitman.

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Editor's Picks

Group photo at Harvard Herbarium
The Harvard University Herbaria hosted a novel Oak Taxonomy...
Jeannine Cavender-Bares | Apr 21, 2026
Morgan and friends in Argentina
Visits to three collections of Quercus in Buenos Aires...
Morgan Santini | Apr 05, 2026
Michel Duhart and Paco Garin at Jardín Botánico Wilson, Costa Rica
On April 1st, the very day he turned 103, a great friend...
Francisco Garin Garcia | Apr 05, 2026

Plant Focus

Quercus orocantabrica
Roderick Cameron and Carlos Vila-Viçosa give an account of this intriguing species from northwestern Iberia with a complex taxonomic and...

All Articles

Service awards recognize contributions to genus Quercus and to the IOS
San Antonio to Las Cruces: oaks and more
Oaks and other attractions, from Albuquerque to Las Cruces.
Four days with the oaks of Arizona
The traditional triennial gathering took place in the shadows of the Organ Mountains.
An oak found only on a volcano in Costa Rica
A single specimen found!
Fire takes the National Champion Gray Oak
Importing acorns for ex-situ conservation
A threatened oak found in northern Arizona and southern Utah.
Czech artist Petr Václavek has created a fantasy world inhabited by little creatures made from acorns and oak twigs
Our third post of poems featuring oaks again has Quercus virginiana (southern live oak) as its theme, this time in a poem by Walt Whitman.

Pages

The International Oak Society acknowledges the generous support of the following institutions:

Supporting Institutional Members

 

Standard Institutional Members

Rice University
San Diego Botanic Garden logo
San Diego Zoo Wildlife Alliance logo
South Carolina Botanical Garden

 

The Huntington
The John Fairey Garden