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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


It turns out quite a number of countries have issued stamps featuring oaks...
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 held at The Morton Arboretum, our first IOS silent auction was held.
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.
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
The author Sennen crops up regularly among the Spanish oaks.
Posted Sun, 2022-02-13 10:38 in Patrick Vereecke's blog
Spanish has many words related to acorns.
Quercus suber acorn
Posted Wed, 2021-12-01 22:02 in Roderick Cameron's blog
Using acorns to teach maths
Acorn-ulator Cover
Posted Thu, 2021-10-14 14:48 in Website Editor's blog
And a special prize would go to anyone who could identify the species from the photo!
Posted Wed, 2021-10-13 13:59 in Website Editor's blog
Video clips are a new feature in the database of Israeli oaks.
Posted Wed, 2021-10-13 11:13 in Ezra Barnea's blog
The authority cited for this taxon needs revision.
Quercus lobbii label
Posted Tue, 2021-10-12 18:41 in Roderick Cameron's blog