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Editor's Picks

Phylogenetic tree
An Updated Infrageneric Classification of the North American Oaks
IOS members Paul Manos (Duke University) and Andrew Hipp (...
Andrew Hipp | Jun 16, 2021
lyytikkyla_oak_2021.jpg
The Lyytikkylä Oak in Finland
Despite damage, the Lyytikkylä Oak is still the thickest...
Juha Fagerholm | Jun 10, 2021
Quercus cerris champion tree in spring 2016. Photo from Šušić et al. (2016)
Sacred Oaks of Serbia
In Serbian tradition, in almost every village or hamlet...
Nikola Šušić | Jun 10, 2021

Plant Focus

The Compton oak at Colonial Williamsburg
Hybrid Highlight: Quercus ×comptoniae Sarg.
A natural hybrid between Quercus lyrata (overcup oak) and Q. virginiana (Southern live oak)
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Triennial Conferences

  • 2018 – The University of California, Davis, California, USA (Chair: Emily Griswold)
  • 2015 – The Morton Arboretum, Illinois, USA (Chair: Andrew Hipp) 
  • 2012 – INRA and Université de Bordeaux I, Bordeaux: France (Chair: Thierry Lamant)
  • 2009 – Benemérita Universidad Autónoma de Puebla, Puebla, Mexico (Chair: Maricela Rodriguez Acosta)
  • 2006 – Texas A&M University, Texas, USA (Chair: David Richardson)
  • 2003 – King Alfred College, Hampshire, England (Chair: Allen Coombes)
  • 2000 – The North Carolina Arboretum, North Carolina, USA (Chair: Ron Lance)
  • 1997 – The Huntington Botanical Garden, California, USA (Chair: Amy Larson)
  • 1994 – The Morton Arboretum, Illinois, USA (Chair: Guy Sternberg)