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After taking charge of my father's oak collection in 2009, I noticed that several of the trees had forks in the trunks and hence co-dominant stems.
Posted Fri, 2015-05-29 16:07 in Roderick Cameron's blog
On April 25 Grigadale Arboretum in Argentina received a small group of visitors for its first Oak Day.
acorn_buffet.jpg
Posted Thu, 2015-05-28 19:18 in Roderick Cameron's blog
Exciting news for quercophiles: a new book about Mexican oaks will be published in June. It will be in Spanish, but extensively illustrated. It is available for pre-order with an attractive...
Posted Thu, 2015-03-12 19:11 in Roderick Cameron's blog
What happens to oaks after a mild dose of agricultural grade herbicide?
Posted Tue, 2015-02-24 17:07 in Roderick Cameron's blog
After losing young oaks to flooding, I am on the lookout for species that might not mind having their feet in water for a while.
Quercus texana under water
Posted Mon, 2015-02-23 20:39 in Roderick Cameron's blog
Some large acorns from Portugal lead to interesting correspondence with Iberian oak expert Francisco Vázquez.
Posted Wed, 2014-12-03 15:42 in Roderick Cameron's blog
I recently had the opportunity of seeing one of the largest pedunculate oaks (Quercus robur) in South America.
Posted Wed, 2014-12-03 11:49 in Roderick Cameron's blog
The Anchorena Alcornoque revisited and a stand of century-old cork oaks in Montevideo, Uruguay.
Posted Thu, 2014-11-20 21:11 in Roderick Cameron's blog
IOS-member Teodoro Marañón has sent me links to a special issue of the Spanish journal "Ecosistemas" (Ecosystems) that he has co-edited.
Posted Fri, 2014-08-29 11:47 in Roderick Cameron's blog
Quercus on Ardnamurchan Peninsula, the most westerly point of mainland Britain.
Posted Fri, 2014-08-22 22:23 in Roderick Cameron's blog
Maarten Windemuller has sent me some more photos of the Rumskulla Oak, including a couple from 1926 that give a good idea of the oak's decline in its latter years.They were published in the 19
Posted Wed, 2014-05-28 23:29 in Roderick Cameron's blog
A new map of New York's Central Park lists the location of 2,854 oaks.
Posted Sun, 2014-05-25 01:12 in Roderick Cameron's blog

Pages

Editor's Picks

Past IOS President Allen Coombes, Curator of Scientific Collections at Puebla University Botanic Garden, discusses leaf variability in Quercus ceirpes (still image from the documentary)
A new documentary by Maricela Rodríguez Acosta
Website Editor | Feb 17, 2026
Quercus miyagii acorn and dried leaves
A rare oak endemic to the Ryukyu Islands of Japan
Elion Jam | Feb 16, 2026
A moss-covered oak (Quercus orocantabrica) in Mata de Albergaria, Peneda-Gerês National Park, Portugal  © Amit Zoran
Steve Potter reviews a new book that features oaks
Steve Potter | Feb 11, 2026

Plant Focus

Quercus canariensis in Cornwall Park, Epsom, Auckland, New Zealand, the champion specimen in New Zealand, planted in the 1920s, 27.2 m tall with a trunk diameter of 209 cm (G. Collett pers. comm. 2026)  © Gerald Collett
Antonio Lambe shares his views on this threatened oak native to Iberia and North Africa

Roderick Cameron's blog

After taking charge of my father's oak collection in 2009, I noticed that several of the trees had forks in the trunks and hence co-dominant stems.
Posted Fri, 2015-05-29 16:07 in Roderick Cameron's blog
On April 25 Grigadale Arboretum in Argentina received a small group of visitors for its first Oak Day.
acorn_buffet.jpg
Posted Thu, 2015-05-28 19:18 in Roderick Cameron's blog
Exciting news for quercophiles: a new book about Mexican oaks will be published in June. It will be in Spanish, but extensively illustrated. It is available for pre-order with an attractive...
Posted Thu, 2015-03-12 19:11 in Roderick Cameron's blog
What happens to oaks after a mild dose of agricultural grade herbicide?
Posted Tue, 2015-02-24 17:07 in Roderick Cameron's blog
After losing young oaks to flooding, I am on the lookout for species that might not mind having their feet in water for a while.
Quercus texana under water
Posted Mon, 2015-02-23 20:39 in Roderick Cameron's blog
Some large acorns from Portugal lead to interesting correspondence with Iberian oak expert Francisco Vázquez.
Posted Wed, 2014-12-03 15:42 in Roderick Cameron's blog
I recently had the opportunity of seeing one of the largest pedunculate oaks (Quercus robur) in South America.
Posted Wed, 2014-12-03 11:49 in Roderick Cameron's blog
The Anchorena Alcornoque revisited and a stand of century-old cork oaks in Montevideo, Uruguay.
Posted Thu, 2014-11-20 21:11 in Roderick Cameron's blog
IOS-member Teodoro Marañón has sent me links to a special issue of the Spanish journal "Ecosistemas" (Ecosystems) that he has co-edited.
Posted Fri, 2014-08-29 11:47 in Roderick Cameron's blog
Quercus on Ardnamurchan Peninsula, the most westerly point of mainland Britain.
Posted Fri, 2014-08-22 22:23 in Roderick Cameron's blog
Maarten Windemuller has sent me some more photos of the Rumskulla Oak, including a couple from 1926 that give a good idea of the oak's decline in its latter years.They were published in the 19
Posted Wed, 2014-05-28 23:29 in Roderick Cameron's blog
A new map of New York's Central Park lists the location of 2,854 oaks.
Posted Sun, 2014-05-25 01:12 in Roderick Cameron's blog

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