Editor's Picks
An intercontinental artifical hybrid raised at Arboretum...
Roderick Cameron
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Apr 12, 2020
David More shares some of his magnificent illustrations of...
David More
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Apr 08, 2020
A project aims to recover and restore habitats in Serra de...
Justin Roborg-Söndergaard
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Apr 07, 2020
Plant Focus
First described by the Japanese botanist Bunzō Hayata in 1913, Quercus hypophaea is a medium to large evergreen oak restricted to the...
All Articles
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...
By Roderick Cameron
Aug 17, 2018
The Action Oak partnership was launched at this year’s Chelsea Flower Show in London last May
By Shaun Haddock
Aug 16, 2018
Given its rugged beauty and hardiness, Quercus rugosa is recommended for gardens, parks, and arboreta in most regions. As it grows...
By Roderick Cameron
Aug 15, 2018
In October 2017, I visited Palomar Mountain State Park, San Diego County, California to collect acorns of the interior live oak, Quercus...
By Dirk Giseburt
Aug 15, 2018
New research published in Nature Plants provides insights into why oaks are long lived.
By Website Editor
Jun 19, 2018
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...
By Website Editor
Jun 13, 2018
To honor Estonia’s centenary, we chose as subject for this article in our series on Historic Oaks, Estonia’s largest, oldest, and most...
By Roderick Cameron
Jun 10, 2018
Illinois State Museum features dwarf chinkapin oak, discovered in Illinois during an IOS Tour, as part of the Illinois Bicentennial...
By Website Editor
Jun 3, 2018
Plant pathologists from the California Department of Agriculture (CDFA) recently identified a new species of fungal pathogen that infects...
By Website Editor
Jun 3, 2018
Ed Holm lived in Redwood City, California and was born on 4 September 1930 and died 1 January 2018.
By Guy Sternberg
Apr 19, 2018
There are meetings that prove to be crucial, primordial encounters that mark our lives. My meeting with Michel Timacheff, an afternoon of...
By Thierry Lamant
Apr 10, 2018
Rainer Lippert has always been interested in old trees. At the age of 16 he started to visit the largest trees in his home district in...
By Website Editor
Apr 7, 2018
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