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Action Oak is a unique collaboration of charities, governments, landowners, and research institutions dedicated to protecting native UK...
One of the more well-known Mexican oaks in cultivation.
An interview with Portuguese oak conservationist Dr. Carlos Vila-Viçosa.
An update on the Oak Conservation and Research Fund appeal.
Continuing our series of posts of poems that feature oaks: a haiku by the legendary Japanese poet Matsuo Bashō (1644–1694).
An eloquent symbol features a stylized oak tree
Hayrettin Karaca, an IOS member and one of Turkey's best-known environmentalists, died January 20 at the age of 97.
The Global Conservation Consortium for Oak published a protocol for the propagation of Quercus insignis.
A team from Holden Forests & Gardens traveled south to collect bluff oak acorns.
A new study has analyzed the germination characteristics of Quercus marlipoensis.
A recent study explores the evolutionary and biogeographical history of section Cerris.
A new species of oak gall wasp has been named in honor of Allen Coombes.

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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

Action Oak is a unique collaboration of charities, governments, landowners, and research institutions dedicated to protecting native UK...
One of the more well-known Mexican oaks in cultivation.
An interview with Portuguese oak conservationist Dr. Carlos Vila-Viçosa.
An update on the Oak Conservation and Research Fund appeal.
Continuing our series of posts of poems that feature oaks: a haiku by the legendary Japanese poet Matsuo Bashō (1644–1694).
An eloquent symbol features a stylized oak tree
Hayrettin Karaca, an IOS member and one of Turkey's best-known environmentalists, died January 20 at the age of 97.
The Global Conservation Consortium for Oak published a protocol for the propagation of Quercus insignis.
A team from Holden Forests & Gardens traveled south to collect bluff oak acorns.
A new study has analyzed the germination characteristics of Quercus marlipoensis.
A recent study explores the evolutionary and biogeographical history of section Cerris.
A new species of oak gall wasp has been named in honor of Allen Coombes.

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