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The Major Oak of Sherwood Forest in Nottinghamshire appears to be close to death.
A naturally occurring hybrid between Quercus robur and Q. alba.
An entrancing and thought-provoking book
Researchers and practitioners from Guatemala, Costa Rica, Colombia, Mexico, and the United States shared latest findings on Mesoamerican...
A meditation on a fallen oak
The new design of an urban oak features many oak species
The reconstructed life story of a single Quercus petraea in the heart of Rambouillet.
A team of reporters share their take on the event.
Four days exploring oaks on the east coast of North Island
The renowned Canadian botanist, whose work included oak hybrids, died on February 26, 2025
Is Q. robur invading Q. petraea populations or is it the other way around?
A team led by IOS member Marco Neves Marques has published an extensive literature review covering oak declines in Mediterranean-type...

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Editor's Picks

Group photo at Harvard Herbarium
The Harvard University Herbaria hosted a novel Oak Taxonomy...
Jeannine Cavender-Bares | Apr 21, 2026
Morgan and friends in Argentina
Visits to three collections of Quercus in Buenos Aires...
Morgan Santini | Apr 05, 2026
Michel Duhart and Paco Garin at Jardín Botánico Wilson, Costa Rica
On April 1st, the very day he turned 103, a great friend...
Francisco Garin Garcia | Apr 05, 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

The Major Oak of Sherwood Forest in Nottinghamshire appears to be close to death.
A naturally occurring hybrid between Quercus robur and Q. alba.
An entrancing and thought-provoking book
Researchers and practitioners from Guatemala, Costa Rica, Colombia, Mexico, and the United States shared latest findings on Mesoamerican...
A meditation on a fallen oak
The new design of an urban oak features many oak species
The reconstructed life story of a single Quercus petraea in the heart of Rambouillet.
A team of reporters share their take on the event.
Four days exploring oaks on the east coast of North Island
The renowned Canadian botanist, whose work included oak hybrids, died on February 26, 2025
Is Q. robur invading Q. petraea populations or is it the other way around?
A team led by IOS member Marco Neves Marques has published an extensive literature review covering oak declines in Mediterranean-type...

Pages

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