Log in

You are here

I was born in Pin Oak Township, Illinois on the only 7 acres left of a large farm. My mother loved trees. My father said they made him tired to look at, because they would have to be cleared to...
Posted Thu, 2016-10-27 12:39 in Scot Sickbert's blog
Peter Marshall reports on the project to restore an old plantation of Valonia Oaks in Australia.
Students from Winters Flat Primary School and garden specialist Terry Willis plant a Quercus macrolepis subsp. ithaburensis seedling
Posted Wed, 2016-10-26 20:24 in Roderick Cameron's blog
My hobby is forestry. I live in Finland, which is usually know for pines, firs and birches. Now I try to plant oaks too.
Posted Tue, 2016-10-25 15:24 in Tuomo Isokuortti's blog
We have received a request from The Morton Arboretum for acorns of northern pin oak (Quercus ellipsoidalis), red oak (Q. rubra), and bur oak (Q. macrocarpa) to support a study on oak wilt. 
Posted Sat, 2016-10-01 21:27 in Website Editor's blog
This year a great number of species are producing acorns for the first time. 
Posted Sun, 2016-07-31 15:35 in Béatrice Chassé's blog
Here are two photos of acorns collected at Hackfalls end of April and now germinating.
Posted Mon, 2016-06-27 16:18 in Harriet Tupper's blog
Across the River Tay from Dunkeld, within easy walking distance, are two oaks with connections to the arts.
Birnam Oak, Young Pretender
Posted Wed, 2016-06-08 16:13 in Shaun Haddock's blog
Dan Keiser's documentary covering his 20 years of traveling with the International Oak Society, "Quercophiles Abroad", premiered at the 8th International Oak Conference workshops. 
Posted Wed, 2016-06-08 11:13 in Dan Keiser's blog
I went out to New Zealand to join the local members of the International Dendrology Society holding their AGM and combining this with the 100th birthday of Bob Berry
Posted Tue, 2016-06-07 22:59 in Harriet Tupper's blog
Grigadale Arboretum in Argentina has taken a first step in making the species list of its oaks available online.
Posted Mon, 2016-04-04 18:02 in Roderick Cameron's blog
A 900-year old oak tree doesn’t sound like the sort of thing you could keep hidden for any length of time (let alone centuries), but it seems that the English have pulled off the trick.
Posted Sun, 2016-04-03 15:44 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

Blogs

I was born in Pin Oak Township, Illinois on the only 7 acres left of a large farm. My mother loved trees. My father said they made him tired to look at, because they would have to be cleared to...
Posted Thu, 2016-10-27 12:39 in Scot Sickbert's blog
Peter Marshall reports on the project to restore an old plantation of Valonia Oaks in Australia.
Students from Winters Flat Primary School and garden specialist Terry Willis plant a Quercus macrolepis subsp. ithaburensis seedling
Posted Wed, 2016-10-26 20:24 in Roderick Cameron's blog
My hobby is forestry. I live in Finland, which is usually know for pines, firs and birches. Now I try to plant oaks too.
Posted Tue, 2016-10-25 15:24 in Tuomo Isokuortti's blog
We have received a request from The Morton Arboretum for acorns of northern pin oak (Quercus ellipsoidalis), red oak (Q. rubra), and bur oak (Q. macrocarpa) to support a study on oak wilt. 
Posted Sat, 2016-10-01 21:27 in Website Editor's blog
This year a great number of species are producing acorns for the first time. 
Posted Sun, 2016-07-31 15:35 in Béatrice Chassé's blog
Here are two photos of acorns collected at Hackfalls end of April and now germinating.
Posted Mon, 2016-06-27 16:18 in Harriet Tupper's blog
Across the River Tay from Dunkeld, within easy walking distance, are two oaks with connections to the arts.
Birnam Oak, Young Pretender
Posted Wed, 2016-06-08 16:13 in Shaun Haddock's blog
Dan Keiser's documentary covering his 20 years of traveling with the International Oak Society, "Quercophiles Abroad", premiered at the 8th International Oak Conference workshops. 
Posted Wed, 2016-06-08 11:13 in Dan Keiser's blog
I went out to New Zealand to join the local members of the International Dendrology Society holding their AGM and combining this with the 100th birthday of Bob Berry
Posted Tue, 2016-06-07 22:59 in Harriet Tupper's blog
Grigadale Arboretum in Argentina has taken a first step in making the species list of its oaks available online.
Posted Mon, 2016-04-04 18:02 in Roderick Cameron's blog
A 900-year old oak tree doesn’t sound like the sort of thing you could keep hidden for any length of time (let alone centuries), but it seems that the English have pulled off the trick.
Posted Sun, 2016-04-03 15:44 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