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Editor's Picks

It may surprise you to learn that we are not the first Oak...
Shaun Haddock | Dec 15, 2018
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This blog post focuses on the day and a half we spent in...
Charles Snyers | Dec 02, 2018
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This blog entry focuses on the Engelmann oak grove at Los...
Charles Snyers | Dec 15, 2018

Plant Focus

For this Species Spotlight we train our follow spot on an oak that is quite a star of the quercine scene: Quercus hypoleucoides (stage name...

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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...
For this Species Spotlight we train our follow spot on an oak that is quite a star of the quercine scene: Quercus hypoleucoides (stage name...
Found in the late 1980s by Guy Sternberg in Springfield, Illinois, this selection was noted early on for its rapid growth rate and strong...
Quercus acutissima Carruth. is a species whose natural distribution covers a vast territory in East and Southeast Asia, from central Nepal...
It sounds like something out of science fiction, but David Cranwell has managed to create a reality where an acorn planted in New Zealand...
Doug McCreary, long-time member of the IOS, died earlier this year.
The subject of the latest addition to our series on Historic Oaks may seem an odd choice, for all that remains of the tree is an ivy-...
Quercus crassifolia is tree ranging in height from 4 to 15 meters, and is usually easily recognized by its leaves: stiff and leathery,...
An Estonian oak that stands in the middle of a sports stadium has won the European Tree of the Year contest.
A Mediterranean oak with a long-standing relationship with humanity.
This unusual hybrid was described by Paul Thomson in 1977 from a location in Lafayette County, Missouri. 
Following the 2015 IOS Conference, the Plant Collecting Collaborative traveled to the Southeastern United States on a seed collection...

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