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Andrew Hipp's New Book

By Website Editor | October 27, 2024
Oak Origins

Oak Origins: From Acorns to Species and the Tree of Life will be published in December

Hayrettin Karaca (1922–2020)

By Roderick Cameron | February 24, 2024
Hayrettin Karaca

Hayrettin Karaca, an IOS member and one of Turkey's best-known environmentalists, died January 20 at the age of 97.

OC&R Committee Announces Second Round of Grant Funding

By Amy Byrne | February 15, 2023
Quercus marlipoensis

Eight conservation projects supported by the OC&R Fund

In Memoriam: Allan Taylor (1931–2022)

By Panayoti Kelaidis | December 17, 2022
Allan Taylor

A long-standing member of the IOS and former editor of Oak News & Notes

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

Society News

Andrew Hipp's New Book

By Website Editor | October 27, 2024
Oak Origins

Oak Origins: From Acorns to Species and the Tree of Life will be published in December

Hayrettin Karaca (1922–2020)

By Roderick Cameron | February 24, 2024
Hayrettin Karaca

Hayrettin Karaca, an IOS member and one of Turkey's best-known environmentalists, died January 20 at the age of 97.

OC&R Committee Announces Second Round of Grant Funding

By Amy Byrne | February 15, 2023
Quercus marlipoensis

Eight conservation projects supported by the OC&R Fund

In Memoriam: Allan Taylor (1931–2022)

By Panayoti Kelaidis | December 17, 2022
Allan Taylor

A long-standing member of the IOS and former editor of Oak News & Notes

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 logo
Oak Spring Foundation
Rice University
San Diego Botanic Garden logo
San Diego Zoo Wildlife Alliance logo
South Carolina Botanical Garden
The Huntington