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Highlights of this tour included: University of California Botanical Garden at Berkeley, Long Ridge Open Space, Stanford oak woodland, and...
On Sunday, October 21, prior to the evening Opening Reception that kicked off the Conference, participants could choose one of three Day...
The second leg of the Post-Conference Tour: from Santa Cruz to Los Angeles
Forty enthusiastic IOS members ventured from UC Davis through Sonoma wine country toward the north California coast. We visited sites of...
Forty-one participants from nine countries gathered at Davis, California on October 15 for a four-day trek across the Sierra Nevada and...
Doug McCreary, long-time member of the IOS, died earlier this year.
Quercus acutissima Carruth. is a species whose natural distribution covers a vast territory in East and Southeast Asia, from central Nepal...
Bob Berry, renowned oak collector and longtime member of the IOS, died August 2, 2018 at the age of 102 in Gisborne, New Zealand. Bob...
The Action Oak partnership was launched at this year’s Chelsea Flower Show in London last May
Given its rugged beauty and hardiness, Quercus rugosa is recommended for gardens, parks, and arboreta in most regions. As it grows...
In October 2017, I visited Palomar Mountain State Park, San Diego County, California to collect acorns of the interior live oak, Quercus...
New research published in Nature Plants provides insights into why oaks are long lived. 

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Editor's Picks

Quercus coccifera, 97 cm dbh and 15 m canopy spread
Images and insights from Ezra Barnea’s journey to Cyprus’s...
Ezra Barnea | Jun 13, 2026
Lainey Kirshberger and Ryan Silver, students at Oklahoma State University, participated in the fieldwork and will lead the genetic and epigenetic analysis under the supervision of Dr. Antonio R. Castilla.
Endangered oak Quercus hinckleyi shows strong genetic...
Website Editor | Jun 09, 2026
The current Red List status and modelled outlook for the eight Californian oak species, plus tanoak
New paper should significantly change our approach to...
Steve Potter | Jun 09, 2026

Plant Focus

Quercus orocantabrica
Roderick Cameron and Carlos Vila-Viçosa give an account of this intriguing species from northwestern Iberia with a complex taxonomic and...

All Articles

Highlights of this tour included: University of California Botanical Garden at Berkeley, Long Ridge Open Space, Stanford oak woodland, and...
On Sunday, October 21, prior to the evening Opening Reception that kicked off the Conference, participants could choose one of three Day...
The second leg of the Post-Conference Tour: from Santa Cruz to Los Angeles
Forty enthusiastic IOS members ventured from UC Davis through Sonoma wine country toward the north California coast. We visited sites of...
Forty-one participants from nine countries gathered at Davis, California on October 15 for a four-day trek across the Sierra Nevada and...
Doug McCreary, long-time member of the IOS, died earlier this year.
Quercus acutissima Carruth. is a species whose natural distribution covers a vast territory in East and Southeast Asia, from central Nepal...
Bob Berry, renowned oak collector and longtime member of the IOS, died August 2, 2018 at the age of 102 in Gisborne, New Zealand. Bob...
The Action Oak partnership was launched at this year’s Chelsea Flower Show in London last May
Given its rugged beauty and hardiness, Quercus rugosa is recommended for gardens, parks, and arboreta in most regions. As it grows...
In October 2017, I visited Palomar Mountain State Park, San Diego County, California to collect acorns of the interior live oak, Quercus...
New research published in Nature Plants provides insights into why oaks are long lived. 

Pages

The International Oak Society acknowledges the generous support of the following institutions:

Supporting Institutional Members

 

Standard Institutional Members

Rice University
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San Diego Zoo Wildlife Alliance logo
South Carolina Botanical Garden

 

The Huntington
The John Fairey Garden