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The Tree Conservation Biology lab at The Morton Arboretum contributed an article to the Kew Millennium Seed Bank Partnership newsletter, Samara.
img_7986.jpg
Posted Fri, 2023-02-10 21:38 in Sean Hoban's blog
IOS founding member and oak doyen Guy Sternberg was interviewed by Vanessa Ferguson for NPR Illinois.
tacoleaves-rr.jpg
Posted Thu, 2022-12-15 15:47 in Website Editor's blog
Many oaks have been planted as memorial trees near the Capitol
Quercus marilandica and the Capitol
Posted Wed, 2022-12-14 17:27 in Roderick Cameron's blog
An unusual shoot on a tree at the Puebla University Botanic Garden in Mexico.
Lobed leaf on Quercus rugosa
Posted Tue, 2022-10-18 11:05 in Allen Coombes's blog
Being a lover of nature and photography, I often saunter around in a narrow mountain ridge in Pretoria, South Africa, with the purpose of getting some exercise, enjoying nature and photography
unripe_acorns.jpeg
Posted Sun, 2022-10-16 10:49 in Tjeerd de Wit's blog
It turns out quite a number of countries have issued stamps featuring oaks...
stamp_collage.jpg
Posted Sat, 2022-06-11 19:17 in Roderick Cameron's blog
What to know about participating in the IOS Seed Exchange
Posted Sun, 2022-04-17 01:08 in Guy Sternberg's blog
At the 2012 IOS Conference at The Morton Arboretum, our first IOS silent auction was held.
ios_logo_square_for_website_25.jpg
Posted Sun, 2022-04-17 00:56 in Ryan Russell's blog
A Latvian oak enthusiast shares his composition that aims to express the idea of an oak tree.
Posted Fri, 2022-04-15 18:32 in Website Editor's blog
Filmmakers have not shown oaks in their portrayals of Birnam Wood.
maples_in_macbeth.jpg
Posted Fri, 2022-04-15 13:24 in Roderick Cameron's blog
A catalog of Paco's photos and descriptions of Fagaceae at the Iturraran Botanical Garden
Quercus hypoxantha
Posted Thu, 2022-02-17 22:19 in Ezra Barnea's blog

Pages

Editor's Picks

Past IOS President Allen Coombes, Curator of Scientific Collections at Puebla University Botanic Garden, discusses leaf variability in Quercus ceirpes (still image from the documentary)
A new documentary by Maricela Rodríguez Acosta
Website Editor | Feb 17, 2026
Quercus miyagii acorn and dried leaves
A rare oak endemic to the Ryukyu Islands of Japan
Elion Jam | Feb 16, 2026
A moss-covered oak (Quercus orocantabrica) in Mata de Albergaria, Peneda-Gerês National Park, Portugal  © Amit Zoran
Steve Potter reviews a new book that features oaks
Steve Potter | Feb 11, 2026

Plant Focus

Quercus canariensis in Cornwall Park, Epsom, Auckland, New Zealand, the champion specimen in New Zealand, planted in the 1920s, 27.2 m tall with a trunk diameter of 209 cm (G. Collett pers. comm. 2026)  © Gerald Collett
Antonio Lambe shares his views on this threatened oak native to Iberia and North Africa

Blogs

The Tree Conservation Biology lab at The Morton Arboretum contributed an article to the Kew Millennium Seed Bank Partnership newsletter, Samara.
img_7986.jpg
Posted Fri, 2023-02-10 21:38 in Sean Hoban's blog
IOS founding member and oak doyen Guy Sternberg was interviewed by Vanessa Ferguson for NPR Illinois.
tacoleaves-rr.jpg
Posted Thu, 2022-12-15 15:47 in Website Editor's blog
Many oaks have been planted as memorial trees near the Capitol
Quercus marilandica and the Capitol
Posted Wed, 2022-12-14 17:27 in Roderick Cameron's blog
An unusual shoot on a tree at the Puebla University Botanic Garden in Mexico.
Lobed leaf on Quercus rugosa
Posted Tue, 2022-10-18 11:05 in Allen Coombes's blog
Being a lover of nature and photography, I often saunter around in a narrow mountain ridge in Pretoria, South Africa, with the purpose of getting some exercise, enjoying nature and photography
unripe_acorns.jpeg
Posted Sun, 2022-10-16 10:49 in Tjeerd de Wit's blog
It turns out quite a number of countries have issued stamps featuring oaks...
stamp_collage.jpg
Posted Sat, 2022-06-11 19:17 in Roderick Cameron's blog
What to know about participating in the IOS Seed Exchange
Posted Sun, 2022-04-17 01:08 in Guy Sternberg's blog
At the 2012 IOS Conference at The Morton Arboretum, our first IOS silent auction was held.
ios_logo_square_for_website_25.jpg
Posted Sun, 2022-04-17 00:56 in Ryan Russell's blog
A Latvian oak enthusiast shares his composition that aims to express the idea of an oak tree.
Posted Fri, 2022-04-15 18:32 in Website Editor's blog
Filmmakers have not shown oaks in their portrayals of Birnam Wood.
maples_in_macbeth.jpg
Posted Fri, 2022-04-15 13:24 in Roderick Cameron's blog
A catalog of Paco's photos and descriptions of Fagaceae at the Iturraran Botanical Garden
Quercus hypoxantha
Posted Thu, 2022-02-17 22:19 in Ezra Barnea'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