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Three options are available for Pre-Conference Day Trips on Sunday, October 21. Join us for a hike in the Berryessa Snow Mountain National Monument, a study tour of Pepperwood Preserve, or a wine tasting tour in the Napa Valley. 

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The UC Davis Arboretum and Public Garden will host the next International Oak Society Conference on the University of California, Davis campus from October 21 to 24, 2018. Registration closed on September 15.

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Highlights of the 3-day Tour due to take place immediately following the 8th International Oak Society Conference in October 2015.

ios_logo_square_for_website_12.jpg

Highlights of the tour due to take place immediately before the 8th International Oak Society Conference in October 2015.

ios_logo_square_for_website_11.jpg

The Morton Arboretum in Lisle, Illinois will host the next International Oak Society Conference October 18-21, 2015.
Registration for the 8th IOS Conference is now open

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

IOS Conference

ios_logo_square_for_website_1.jpg

Three options are available for Pre-Conference Day Trips on Sunday, October 21. Join us for a hike in the Berryessa Snow Mountain National Monument, a study tour of Pepperwood Preserve, or a wine tasting tour in the Napa Valley. 

ios_logo_square_for_website_0.jpg

The UC Davis Arboretum and Public Garden will host the next International Oak Society Conference on the University of California, Davis campus from October 21 to 24, 2018. Registration closed on September 15.

ios_logo_square_for_website_7.jpg

Highlights of the 3-day Tour due to take place immediately following the 8th International Oak Society Conference in October 2015.

ios_logo_square_for_website_12.jpg

Highlights of the tour due to take place immediately before the 8th International Oak Society Conference in October 2015.

ios_logo_square_for_website_11.jpg

The Morton Arboretum in Lisle, Illinois will host the next International Oak Society Conference October 18-21, 2015.
Registration for the 8th IOS Conference is now open

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