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Quercus semecarpifolia, commonly known as brown oak, is the main forest-forming evergreen tree species from upper temperate to subalpine...
For this Species Spotlight we train our follow spot on an oak that is quite a star of the quercine scene: Quercus hypoleucoides (stage name...
North American oaks have a northern temperate origin and only later colonized Mexico and Central America, according to a new study. 
Our German speaking members will be interested to learn that a new book on giant oaks in Germany was published in September 2017: Riesige...
Bernard de La Rochefoucauld, long-time IOS member with his wife Brigitte, founder of l’Arboretum des Grandes Bruyères, died July 18, 2017,...
The International Oak Society celebrates its 25th anniversary at Starhill Forest Arboretum.
The Morton Arboretum and the Botanic Garden at the Benemérita Universidad Autónoma de Puebla hosted a Rare Mexican Oak Taxonomy Workshop,...
One-fourth of the United States’ oak species are now considered of conservation concern, according to data compiled by researchers at The...
This article is an account of the oak field trip organized by Michael Meléndrez in New Mexico (and a bit of Arizona) in August 2017. 
There are more ancient oaks in England than in all of continental Europe. How is that possible? One would expect to find the reasons in...
ArbNet is an interactive community of arboreta, sponsored and coordinated by The Morton Arboretum in cooperation with the American Public...
As we celebrate 25 years of the IOS, we take a look at oaks that have an association with silver. In a Species Spotlight Joeri Strijk...

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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

Quercus semecarpifolia, commonly known as brown oak, is the main forest-forming evergreen tree species from upper temperate to subalpine...
For this Species Spotlight we train our follow spot on an oak that is quite a star of the quercine scene: Quercus hypoleucoides (stage name...
North American oaks have a northern temperate origin and only later colonized Mexico and Central America, according to a new study. 
Our German speaking members will be interested to learn that a new book on giant oaks in Germany was published in September 2017: Riesige...
Bernard de La Rochefoucauld, long-time IOS member with his wife Brigitte, founder of l’Arboretum des Grandes Bruyères, died July 18, 2017,...
The International Oak Society celebrates its 25th anniversary at Starhill Forest Arboretum.
The Morton Arboretum and the Botanic Garden at the Benemérita Universidad Autónoma de Puebla hosted a Rare Mexican Oak Taxonomy Workshop,...
One-fourth of the United States’ oak species are now considered of conservation concern, according to data compiled by researchers at The...
This article is an account of the oak field trip organized by Michael Meléndrez in New Mexico (and a bit of Arizona) in August 2017. 
There are more ancient oaks in England than in all of continental Europe. How is that possible? One would expect to find the reasons in...
ArbNet is an interactive community of arboreta, sponsored and coordinated by The Morton Arboretum in cooperation with the American Public...
As we celebrate 25 years of the IOS, we take a look at oaks that have an association with silver. In a Species Spotlight Joeri Strijk...

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