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A rare species from the Zagros forests in Iran
The landmark oak was found as a naturally occurring hybrid
A rare oak endemic to Lebanon.
A poem by a reclusive British-Mexican poet
Nineteen projects funded by IOS Oak Conservation and Research Fund
Shaun Haddock's tribute to Anke, who died in December 2024.
Oaks of the Zagros mountains are under threat.
Large oaks have been declared "botanical monuments of nature" 
Long-time IOS member Henry "Weeds" Eilers died November 13, 2024.
An artist who has created remarkable portraits of ancient oaks in the UK
Steve Potter reviews decline diseases affecting oaks in the UK.
A review of Andrew Hipp's new book

Pages

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

A rare species from the Zagros forests in Iran
The landmark oak was found as a naturally occurring hybrid
A rare oak endemic to Lebanon.
A poem by a reclusive British-Mexican poet
Nineteen projects funded by IOS Oak Conservation and Research Fund
Shaun Haddock's tribute to Anke, who died in December 2024.
Oaks of the Zagros mountains are under threat.
Large oaks have been declared "botanical monuments of nature" 
Long-time IOS member Henry "Weeds" Eilers died November 13, 2024.
An artist who has created remarkable portraits of ancient oaks in the UK
Steve Potter reviews decline diseases affecting oaks in the UK.
A review of Andrew Hipp's new book

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