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Cyprus, April-May 2026 – Vacation Impressions

By Ezra Barnea | June 13, 2026
Quercus coccifera, 97 cm dbh and 15 m canopy spread
Images and insights from Ezra Barnea’s journey to Cyprus’s oaks

Argentine Oak Collections through Italian Eyes

By Morgan Santini | April 5, 2026
Morgan and friends in Argentina
Visits to three collections of Quercus in Buenos Aires Province

In Search of Quercus miyagii: A Field Report from Okinawa

By Elion Jam | February 16, 2026
Quercus miyagii acorn and dried leaves
A rare oak endemic to the Ryukyu Islands of Japan

Post-Conference Tour: Oaxaca

By Wally Wilkins | December 10, 2025
Group with Quercus macdougallii
Six days exploring Oaxaca’s oak diversity, as reported by Wally Wilkins.

IOS Tour of California, Part 1: Northern California

By Chris Reynolds | October 30, 2024
Group by Sequoiadendron giganteum

From Davis to Los Angeles

IOS Tour of California, Part 2: Southern California

By John Leszczynski | October 30, 2024
Group photo at Otay Mountains

From Los Angeles to the Otay Mountains

IOS Tour of Oregon, September 2023

By Website Editor | October 19, 2023
Tour Participants on Fiddler Peak

An account of the Tour guided by Sean Hogan

Pages

Editor's Picks

Quercus coccifera, 97 cm dbh and 15 m canopy spread
Cyprus, April-May 2026 – Vacation Impressions
Images and insights from Ezra Barnea’s journey to Cyprus’s...
Ezra Barnea | Jun 13, 2026
Lainey Kirshberger and Ryan Silver, students at Oklahoma State University, participated in the fieldwork and will lead the genetic and epigenetic analysis under the supervision of Dr. Antonio R. Castilla.
Epigenetics as a Potential Mechanism of Rapid Response to Climate Change in the Endangered Oak Quercus hinckleyi
Endangered oak Quercus hinckleyi shows strong genetic...
Website Editor | Jun 09, 2026
The current Red List status and modelled outlook for the eight Californian oak species, plus tanoak
The Threat to California’s Oaks Is Greater than Had Been Anticipated
New paper should significantly change our approach to...
Steve Potter | Jun 09, 2026

Plant Focus

Quercus orocantabrica
Species Spotlight: Quercus orocantabrica Rivas Mart., Penas, T.E.Díaz & Llamas
Roderick Cameron and Carlos Vila-Viçosa give an account of this intriguing species from northwestern Iberia with a complex taxonomic and...
Read more

Trip Reports

Cyprus, April-May 2026 – Vacation Impressions

By Ezra Barnea | June 13, 2026
Quercus coccifera, 97 cm dbh and 15 m canopy spread
Images and insights from Ezra Barnea’s journey to Cyprus’s oaks

Argentine Oak Collections through Italian Eyes

By Morgan Santini | April 5, 2026
Morgan and friends in Argentina
Visits to three collections of Quercus in Buenos Aires Province

In Search of Quercus miyagii: A Field Report from Okinawa

By Elion Jam | February 16, 2026
Quercus miyagii acorn and dried leaves
A rare oak endemic to the Ryukyu Islands of Japan

Post-Conference Tour: Oaxaca

By Wally Wilkins | December 10, 2025
Group with Quercus macdougallii
Six days exploring Oaxaca’s oak diversity, as reported by Wally Wilkins.

IOS Tour of California, Part 1: Northern California

By Chris Reynolds | October 30, 2024
Group by Sequoiadendron giganteum

From Davis to Los Angeles

IOS Tour of California, Part 2: Southern California

By John Leszczynski | October 30, 2024
Group photo at Otay Mountains

From Los Angeles to the Otay Mountains

IOS Tour of Oregon, September 2023

By Website Editor | October 19, 2023
Tour Participants on Fiddler Peak

An account of the Tour guided by Sean Hogan

Pages

The International Oak Society acknowledges the generous support of the following institutions:

Supporting Institutional Members

Denver BG Logo
The Morton Arboretum logo
San Antonio Botanical Garden logo

The John Fairey Garden

Standard Institutional Members

Bartlett Tree Experts logo
Catalina Island Conservancy logo
Forrest Keeling Nursery logo
Houston Botanic Garden logo
KOAGI logoRice University
 San Diego Botanic Garden logoSan Diego Zoo Wildlife Alliance logoSouth Carolina Botanical Garden
 

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