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Acorns in Bhutan - to be seen but not hoard(ed).
Posted Sun, 2014-01-05 16:36 in Shaun Haddock's blog
On the first weekend of November 2013 a group of oak enthusiasts congregated in Aiken, SC.
Posted Thu, 2013-11-14 11:54 in Roderick Cameron's blog
Yesterday, 22nd of September, nearly 30 oak enthusiasts gathered at Pavia nurseries, an outstanding nursery owned and run by Dirk Benoit, past IOS board member. 
Posted Mon, 2013-09-23 10:56 in Charles Snyers d'Attenhoven's blog
On your way to AIken in South Carolina this November, you might pass by Red Oak, NC. 
Posted Mon, 2013-08-12 15:49 in Charles Snyers d'Attenhoven's blog
Two oaks elected tree of the year 2013
Posted Sat, 2013-08-03 17:24 in Charles Snyers d'Attenhoven's blog
Michel Timacheff, IOS Member and photographer, came across an old oak near Villers-sur-Lesse in southern Belgium.  Its circumference is over 6 meters at BH. 
Posted Thu, 2013-05-02 11:06 in Charles Snyers d'Attenhoven's blog
Dan Hinkely will be speaking at the 2013 Annual Meeting of the Magnolia Society, next April 19th- 21st.
Posted Sun, 2013-03-03 18:34 in Charles Snyers d'Attenhoven's blog
In January 2012, the USDA Agricultural Research Service released a new edition of the American Plant Hardiness Map.  The previous edition was released in 1990.  Two new zones 12 and 13 have be
Posted Sun, 2012-09-16 11:34 in Charles Snyers d'Attenhoven's blog
Chevithorne Barton in Devon is home to one of the two UK National Collection for the genus Quercus. It was built by IOS member Michael Heathcoat Amory.
Posted Sat, 2011-07-02 20:09 in Charles Snyers d'Attenhoven's blog
In the heart of the Mid-west grows a monster. McBaine, Missouri is home to the state champion Q. macrocarpa.
Posted Thu, 2010-05-27 05:00 in Ryan Russell'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

Acorns in Bhutan - to be seen but not hoard(ed).
Posted Sun, 2014-01-05 16:36 in Shaun Haddock's blog
On the first weekend of November 2013 a group of oak enthusiasts congregated in Aiken, SC.
Posted Thu, 2013-11-14 11:54 in Roderick Cameron's blog
Yesterday, 22nd of September, nearly 30 oak enthusiasts gathered at Pavia nurseries, an outstanding nursery owned and run by Dirk Benoit, past IOS board member. 
Posted Mon, 2013-09-23 10:56 in Charles Snyers d'Attenhoven's blog
On your way to AIken in South Carolina this November, you might pass by Red Oak, NC. 
Posted Mon, 2013-08-12 15:49 in Charles Snyers d'Attenhoven's blog
Two oaks elected tree of the year 2013
Posted Sat, 2013-08-03 17:24 in Charles Snyers d'Attenhoven's blog
Michel Timacheff, IOS Member and photographer, came across an old oak near Villers-sur-Lesse in southern Belgium.  Its circumference is over 6 meters at BH. 
Posted Thu, 2013-05-02 11:06 in Charles Snyers d'Attenhoven's blog
Dan Hinkely will be speaking at the 2013 Annual Meeting of the Magnolia Society, next April 19th- 21st.
Posted Sun, 2013-03-03 18:34 in Charles Snyers d'Attenhoven's blog
In January 2012, the USDA Agricultural Research Service released a new edition of the American Plant Hardiness Map.  The previous edition was released in 1990.  Two new zones 12 and 13 have be
Posted Sun, 2012-09-16 11:34 in Charles Snyers d'Attenhoven's blog
Chevithorne Barton in Devon is home to one of the two UK National Collection for the genus Quercus. It was built by IOS member Michael Heathcoat Amory.
Posted Sat, 2011-07-02 20:09 in Charles Snyers d'Attenhoven's blog
In the heart of the Mid-west grows a monster. McBaine, Missouri is home to the state champion Q. macrocarpa.
Posted Thu, 2010-05-27 05:00 in Ryan Russell's blog

Pages

The International Oak Society acknowledges the generous support of the following institutions:

Supporting Institutional Members

 

Standard Institutional Members

Rice University
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San Diego Zoo Wildlife Alliance logo
South Carolina Botanical Garden

 

The Huntington
The John Fairey Garden