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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. 
North America is home to 91 species of oak trees. Astoundingly, the various species rarely, if ever, occur alone. Where one kind of oak is...
To honor Estonia’s centenary, we chose as subject for this article in our series on Historic Oaks, Estonia’s largest, oldest, and most...

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Editor's Picks

Michel Gandoger
While working on a list of synonyms of European White...
Roderick Cameron | Aug 24, 2026
Cover of Select Native Asian Oaks Gap Analysis
Report led by The Morton Arboretum will help prioritize oak...
Website Editor | Aug 06, 2026
A1's 2024 crop of acorns
Motivation I live in the village of Dolné Dubové...
Jozef Čapkovič | Jul 20, 2026

Plant Focus

Quercus afares, Kew, © James MacEwen
The only oak species endemic to Africa is rare in cultivation. It shouldn't be.

All Articles

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. 
North America is home to 91 species of oak trees. Astoundingly, the various species rarely, if ever, occur alone. Where one kind of oak is...
To honor Estonia’s centenary, we chose as subject for this article in our series on Historic Oaks, Estonia’s largest, oldest, and most...

Pages

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

Supporting Institutional Members

The John Fairey Garden

Standard Institutional Members

Bartlett Tree Experts logo
Catalina Island Conservancy logo
Forrest Keeling Nursery logo
Houston Botanic Garden logo
KOAGI logo
Oak Spring Foundation
Rice University
San Diego Botanic Garden logo
San Diego Zoo Wildlife Alliance logo
South Carolina Botanical Garden
The Huntington