Copenhagen Hills Preserve is an ecological gem. With its unique calcium-rich soils, it hosts a plethora of plant communities, ranging from...
By Rebecca Dellinger
Feb 17, 2017
The New Mexico Oak Open Days were a six-day whirlwind tour of the state covering more than 1,400 miles. Led by IOS founding member Michael...
By Ryan Russell
Dec 5, 2016
The Benemérita Universidad Autónoma de Puebla has published the Flora del Estado de Puebla, México.
By Website Editor
Aug 24, 2016
If I wanted to make stronger, more meaningful images, I should pick something that I love and photograph it again and again: “Follow what...
By William Guion
Aug 1, 2016
Found in the late 1980s by Guy Sternberg in Springfield, Illinois, this selection was noted early on for its rapid growth rate and strong...
By Ryan Russell
Aug 1, 2016
This cultivar was selected by Raimond Cinovskis, from the Botanical Garden of the Academy of Sciences, Salapils, Latvia and was introduced...
By Ryan Russell
Aug 1, 2016
Named in honor of one of America’s first botanists, John Bartram, Quercus ×heterophylla is known by many as Bartram’s oak.
By Ryan Russell
Aug 1, 2016
A reliable asexual propagation method for oaks is crucial for introducing superior hybrid oak selections into the nursery trade as named...
By Website Editor
Jul 31, 2016
Karl Georg Theodor Kotschy was an Austrian botanist and eminent plant explorer. He died 150 years ago in Vienna on June 11, 1866.
By Eike Jablonski
Jun 11, 2016
The first IOS Oak Open Day event south of the Equator took place April 22-24, 2016, in Argentina.
By Roderick Cameron
Jun 10, 2016
Quercus ilicifolia is a little oak with a big name: bear oak.
By Rebecca Dellinger
Jun 4, 2016
A review of the assemblage of the oaks known as the "vallonea oaks" or "aegilops oaks" from the Eastern Mediterranean and the Levant.
By Michael Avishai
Jun 4, 2016
Pages
Editor's Picks
The Harvard University Herbaria hosted a novel Oak Taxonomy...
Jeannine Cavender-Bares
|
Apr 21, 2026
Visits to three collections of Quercus in Buenos Aires...
Morgan Santini
|
Apr 05, 2026
On April 1st, the very day he turned 103, a great friend...
Francisco Garin Garcia
|
Apr 05, 2026
Plant Focus
Roderick Cameron and Carlos Vila-Viçosa give an account of this intriguing species from northwestern Iberia with a complex taxonomic and...
Copenhagen Hills Preserve is an ecological gem. With its unique calcium-rich soils, it hosts a plethora of plant communities, ranging from...
By Rebecca Dellinger
Feb 17, 2017
The New Mexico Oak Open Days were a six-day whirlwind tour of the state covering more than 1,400 miles. Led by IOS founding member Michael...
By Ryan Russell
Dec 5, 2016
The Benemérita Universidad Autónoma de Puebla has published the Flora del Estado de Puebla, México.
By Website Editor
Aug 24, 2016
If I wanted to make stronger, more meaningful images, I should pick something that I love and photograph it again and again: “Follow what...
By William Guion
Aug 1, 2016
Found in the late 1980s by Guy Sternberg in Springfield, Illinois, this selection was noted early on for its rapid growth rate and strong...
By Ryan Russell
Aug 1, 2016
This cultivar was selected by Raimond Cinovskis, from the Botanical Garden of the Academy of Sciences, Salapils, Latvia and was introduced...
By Ryan Russell
Aug 1, 2016
Named in honor of one of America’s first botanists, John Bartram, Quercus ×heterophylla is known by many as Bartram’s oak.
By Ryan Russell
Aug 1, 2016
A reliable asexual propagation method for oaks is crucial for introducing superior hybrid oak selections into the nursery trade as named...
By Website Editor
Jul 31, 2016
Karl Georg Theodor Kotschy was an Austrian botanist and eminent plant explorer. He died 150 years ago in Vienna on June 11, 1866.
By Eike Jablonski
Jun 11, 2016
The first IOS Oak Open Day event south of the Equator took place April 22-24, 2016, in Argentina.
By Roderick Cameron
Jun 10, 2016
Quercus ilicifolia is a little oak with a big name: bear oak.
By Rebecca Dellinger
Jun 4, 2016
A review of the assemblage of the oaks known as the "vallonea oaks" or "aegilops oaks" from the Eastern Mediterranean and the Levant.
By Michael Avishai
Jun 4, 2016
Pages
The International Oak Society acknowledges the generous support of the following institutions:
Supporting Institutional Members
Standard Institutional Members
User login
The International Oak Society acknowledges the generous support of the following institutions:
Supporting Institutional Members
Standard Institutional Members
