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Chevithorne Barton hosted an Oak Study Day on July 21, 2023
An unusual acorn...© Chris West
Posted Mon, 2023-08-07 18:41 in Chris West's blog
Beech Leaf Disease is attacking Fagus species in North America.
Beech tree leaf disease
Posted Tue, 2023-06-20 19:52 in Website Editor's blog
The IOS recently received an inquiry from Jim Conrad about a strange phenomenon he observed on a twig of a Quercus
q_rugos2.jpg
Posted Tue, 2023-06-20 19:51 in Website Editor's blog
A new oak-themed mural beautifies an old brick wall in downtown Woodland, California.
photo_4_0.jpg
Posted Wed, 2023-06-14 15:02 in Website Editor's blog
Shakespeare mentions oaks more than any other tree.
Falstaff at Hern's Oak
Posted Sun, 2023-04-23 15:56 in Roderick Cameron's blog
Hans-Cees Speel shares news of the website he created, which includes numerous photos of 64 oak taxa. 
quercus_affinis_mexican_laurelleaf_oak1l.jpg
Posted Wed, 2023-04-19 11:10 in Hans-Cees Speel's blog
Tim Boland brought to our attention an interesting discussion of dispersal of acorns by Blue Jays (
Blue Jays and Oaks by Jay Wright
Posted Sun, 2023-04-16 13:56 in Roderick Cameron's blog
Maricela Rodríguez interviewed staff and owners at key oak collections in the UK. 
Propagating oaks by cuttings
Posted Sun, 2023-04-16 13:10 in Website Editor's blog
Angela Moskow shared some disturbing accounts of oak poisonings.
how_to_kill_an_oak_page_1.jpg
Posted Sun, 2023-04-16 10:01 in Website Editor's blog
An encounter in Taiwan with a genus in Fagaceae I had never heard of.
castnopsis_uraiana_inat2.jpeg
Posted Sat, 2023-04-15 11:44 in Roderick Cameron's blog
An article by Tim Boland and Matt Lobdell on why oaks are "ecological warhorses"
tag-jf22-cover-768x1013.jpg
Posted Wed, 2023-02-15 17:43 in Website Editor's blog
A proposal to conserve the name for Hungarian oak
Quercus frainetto
Posted Mon, 2023-02-13 16:11 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

Chevithorne Barton hosted an Oak Study Day on July 21, 2023
An unusual acorn...© Chris West
Posted Mon, 2023-08-07 18:41 in Chris West's blog
Beech Leaf Disease is attacking Fagus species in North America.
Beech tree leaf disease
Posted Tue, 2023-06-20 19:52 in Website Editor's blog
The IOS recently received an inquiry from Jim Conrad about a strange phenomenon he observed on a twig of a Quercus
q_rugos2.jpg
Posted Tue, 2023-06-20 19:51 in Website Editor's blog
A new oak-themed mural beautifies an old brick wall in downtown Woodland, California.
photo_4_0.jpg
Posted Wed, 2023-06-14 15:02 in Website Editor's blog
Shakespeare mentions oaks more than any other tree.
Falstaff at Hern's Oak
Posted Sun, 2023-04-23 15:56 in Roderick Cameron's blog
Hans-Cees Speel shares news of the website he created, which includes numerous photos of 64 oak taxa. 
quercus_affinis_mexican_laurelleaf_oak1l.jpg
Posted Wed, 2023-04-19 11:10 in Hans-Cees Speel's blog
Tim Boland brought to our attention an interesting discussion of dispersal of acorns by Blue Jays (
Blue Jays and Oaks by Jay Wright
Posted Sun, 2023-04-16 13:56 in Roderick Cameron's blog
Maricela Rodríguez interviewed staff and owners at key oak collections in the UK. 
Propagating oaks by cuttings
Posted Sun, 2023-04-16 13:10 in Website Editor's blog
Angela Moskow shared some disturbing accounts of oak poisonings.
how_to_kill_an_oak_page_1.jpg
Posted Sun, 2023-04-16 10:01 in Website Editor's blog
An encounter in Taiwan with a genus in Fagaceae I had never heard of.
castnopsis_uraiana_inat2.jpeg
Posted Sat, 2023-04-15 11:44 in Roderick Cameron's blog
An article by Tim Boland and Matt Lobdell on why oaks are "ecological warhorses"
tag-jf22-cover-768x1013.jpg
Posted Wed, 2023-02-15 17:43 in Website Editor's blog
A proposal to conserve the name for Hungarian oak
Quercus frainetto
Posted Mon, 2023-02-13 16:11 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