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Very unexpectedly, in her home in Klein Zundert, The Netherlands, Jo Bömer passed away on March 4th 2015.
Posted Thu, 2015-03-12 21:55 in Trompenburg Gardens and Arboretum's blog
Exciting news for quercophiles: a new book about Mexican oaks will be published in June. It will be in Spanish, but extensively illustrated. It is available for pre-order with an attractive...
Posted Thu, 2015-03-12 19:11 in Roderick Cameron's blog
A visit to the world's largest oak vat.
Posted Wed, 2015-02-25 19:35 in Shaun Haddock's blog
What happens to oaks after a mild dose of agricultural grade herbicide?
Posted Tue, 2015-02-24 17:07 in Roderick Cameron's blog
After losing young oaks to flooding, I am on the lookout for species that might not mind having their feet in water for a while.
Quercus texana under water
Posted Mon, 2015-02-23 20:39 in Roderick Cameron's blog
This tree had not been pruned for many years, if at all and as a result it had grown competing leaders. These co-dominant stems were already becoming an issue and if left unchecked, would become...
Posted Thu, 2015-01-15 00:50 in Ryan Russell's blog
The text of the Eighth Edition of Bean's Trees and Shrubs Hardy in the British Isles and its Supplement, is now online.
Posted Wed, 2014-12-24 09:34 in Charles Snyers d'Attenhoven's blog
While it is very well known that oaks hybridize, can you call every oak you may find with atypical leaves, bark, or acorns a hybrid? 
Posted Fri, 2014-12-19 18:03 in Ryan Russell's blog
Some large acorns from Portugal lead to interesting correspondence with Iberian oak expert Francisco Vázquez.
Posted Wed, 2014-12-03 15:42 in Roderick Cameron's blog
I recently had the opportunity of seeing one of the largest pedunculate oaks (Quercus robur) in South America.
Posted Wed, 2014-12-03 11:49 in Roderick Cameron's blog
A brief trip to Taiwan viewing Fagaceae.
Posted Tue, 2014-12-02 11:45 in Trompenburg Gardens and Arboretum's blog
The IOS initiates a project to improve its www.oaknames.org website.
Posted Mon, 2014-12-01 09:15 in Charles Snyers d'Attenhoven's blog

Pages

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...

Blogs

Very unexpectedly, in her home in Klein Zundert, The Netherlands, Jo Bömer passed away on March 4th 2015.
Posted Thu, 2015-03-12 21:55 in Trompenburg Gardens and Arboretum's blog
Exciting news for quercophiles: a new book about Mexican oaks will be published in June. It will be in Spanish, but extensively illustrated. It is available for pre-order with an attractive...
Posted Thu, 2015-03-12 19:11 in Roderick Cameron's blog
A visit to the world's largest oak vat.
Posted Wed, 2015-02-25 19:35 in Shaun Haddock's blog
What happens to oaks after a mild dose of agricultural grade herbicide?
Posted Tue, 2015-02-24 17:07 in Roderick Cameron's blog
After losing young oaks to flooding, I am on the lookout for species that might not mind having their feet in water for a while.
Quercus texana under water
Posted Mon, 2015-02-23 20:39 in Roderick Cameron's blog
This tree had not been pruned for many years, if at all and as a result it had grown competing leaders. These co-dominant stems were already becoming an issue and if left unchecked, would become...
Posted Thu, 2015-01-15 00:50 in Ryan Russell's blog
The text of the Eighth Edition of Bean's Trees and Shrubs Hardy in the British Isles and its Supplement, is now online.
Posted Wed, 2014-12-24 09:34 in Charles Snyers d'Attenhoven's blog
While it is very well known that oaks hybridize, can you call every oak you may find with atypical leaves, bark, or acorns a hybrid? 
Posted Fri, 2014-12-19 18:03 in Ryan Russell's blog
Some large acorns from Portugal lead to interesting correspondence with Iberian oak expert Francisco Vázquez.
Posted Wed, 2014-12-03 15:42 in Roderick Cameron's blog
I recently had the opportunity of seeing one of the largest pedunculate oaks (Quercus robur) in South America.
Posted Wed, 2014-12-03 11:49 in Roderick Cameron's blog
A brief trip to Taiwan viewing Fagaceae.
Posted Tue, 2014-12-02 11:45 in Trompenburg Gardens and Arboretum's blog
The IOS initiates a project to improve its www.oaknames.org website.
Posted Mon, 2014-12-01 09:15 in Charles Snyers d'Attenhoven's blog

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