Join the IOS today!
Since 1992 the International Oak Society has been bringing together oak enthusiasts from around the world. Born from a shared desire to exchange Quercus seed, the IOS has grown in many directions. Our mission: to further the study, sustainable management, preservation, appreciation and dissemination of knowledge about the genus Quercus and its ecosystems.
To join the IOS, you first need to subscribe to The Cupule, our free e-bulletin, by clicking on the button below. Then log in using the username and password you created and you will find instructions to join the IOS on the home page.
To read about membership rates and benefits, click on "Learn More" below.
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Plant Focus
Latest Articles
Five IOS members were invited to participate in an International Conservation Symposium in Taiwan.
Continuing our series of posts of poems that feature oaks: a meditation on the passing of time measured by the lives of ancient oaks.
Quercus mangdenensis H.T. Bing & Ngoc published in Phytokeys
Latest Blog Posts
Shakespeare mentions oaks more than any other tree.
Hans-Cees Speel shares news of the website he created, which includes numerous photos of 64 oak taxa.
Tim Boland brought to our attention an interesting discussion of dispersal of acorns by Blue Jays (Cyano
Maricela Rodríguez interviewed staff and owners at key oak collections in the UK.
Angela Moskow shared some disturbing accounts of oak poisonings.
Upcoming Events
Jul 01, 2023 to Jul 02, 2023
Oak Open Days will be held in Wales on Saturday 1st and Sunday 2nd July, 2023.
Jul 21, 2023
This event has been organized in conjunction with the International Dendrology Society.
Sep 17, 2023 to Sep 24, 2023
Itinerary to include Mount Hood, southwestern Oregon, the Siskiyou Mountains, and garden visits; led by Sean Hogan.
