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Andrew Hipp's New Book

Oak Origins

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

Hayrettin Karaca (1922–2020)

Hayrettin Karaca

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

Quercus marlipoensis

Eight conservation projects supported by the OC&R Fund

In Memoriam: Allan Taylor (1931–2022)

Allan Taylor

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

Pages

Editor's Picks

Group photo at Harvard Herbarium
The Harvard University Herbaria hosted a novel Oak Taxonomy...
Jeannine Cavender-Bares | Apr 21, 2026
Morgan and friends in Argentina
Visits to three collections of Quercus in Buenos Aires...
Morgan Santini | Apr 05, 2026
Michel Duhart and Paco Garin at Jardín Botánico Wilson, Costa Rica
On April 1st, the very day he turned 103, a great friend...
Francisco Garin Garcia | Apr 05, 2026

Plant Focus

Quercus orocantabrica
Roderick Cameron and Carlos Vila-Viçosa give an account of this intriguing species from northwestern Iberia with a complex taxonomic and...

Society News

Andrew Hipp's New Book

Oak Origins

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

Hayrettin Karaca (1922–2020)

Hayrettin Karaca

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

Quercus marlipoensis

Eight conservation projects supported by the OC&R Fund

In Memoriam: Allan Taylor (1931–2022)

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

 

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