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Editor's Picks

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A single specimen found!
Website Editor | Aug 11, 2022
Quercus engelmannii seedling
Importing acorns for ex-situ conservation
Josephine Brennan | Aug 02, 2022
Quercus welshii on dunes site south of Kayenta, Ariz.
A threatened oak found in northern Arizona and southern...
Cindy Newlander | Jul 31, 2022

Plant Focus

Quercus tonduzii with acorn
An oak found only on a volcano in Costa Rica

Latest Articles

Burnt Champion Gray Oak
Fire takes the National Champion Gray Oak
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Our third post of poems featuring oaks again has Quercus virginiana (southern live oak) as its theme, this time in a poem by Walt Whitman.
Le Chene
Laurent Charbonnier and Michel Seydoux spend a year with a magnificent oak tree to document its inhabitants.

Latest Blog Posts

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At the 2012 IOS Conference held at The Morton Arboretum, our first IOS silent auction was held.
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A Latvian oak enthusiast shares his composition that aims to express the idea of an oak tree.
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Filmmakers have not shown oaks in their portrayals of Birnam Wood.
Quercus hypoxantha
A catalog of Paco's photos and descriptions of Fagaceae at the Iturraran Botanical Garden
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Using acorns to teach maths

Upcoming Events

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Oct 31, 2022 to Nov 03, 2022
Sustaining Oak Woodlands Under Current and Future Conditions