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Editor's Picks

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
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

At the 2012 IOS Conference held at The Morton Arboretum, our first IOS silent auction was held.
A Latvian oak enthusiast shares his composition that aims to express the idea of an oak tree.
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
Acorn-ulator Cover
Using acorns to teach maths

Upcoming Events

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