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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

Quercus coccifera, 97 cm dbh and 15 m canopy spread
Images and insights from Ezra Barnea’s journey to Cyprus’s...
Ezra Barnea | Jun 13, 2026
Lainey Kirshberger and Ryan Silver, students at Oklahoma State University, participated in the fieldwork and will lead the genetic and epigenetic analysis under the supervision of Dr. Antonio R. Castilla.
Endangered oak Quercus hinckleyi shows strong genetic...
Website Editor | Jun 09, 2026
The current Red List status and modelled outlook for the eight Californian oak species, plus tanoak
New paper should significantly change our approach to...
Steve Potter | Jun 09, 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