Dendrology

Oak Symposium at the XXIII Mexican Botanical Congress

By Website Editor | December 5, 2025

The Symposium "Mexican Oaks: Current State of Knowledge about Quercus and its Conservation" was held on September 1, 2025.

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Another Gift From Oaks

By Janet Backs | October 23, 2025

Oak barrels are used to age wine and spirits

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The World’s Tallest Cork Oak: a Cautionary Tale

By Steve Potter | October 22, 2025

In August of this year, traditionally a quiet month for news, the UK’s Sunday Times ran a story headed “Record-breaking tree grew from the pages of a 100-year-old-book”. It recounted how a M.

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Sad News from England

By Steve Potter | August 4, 2025

The Major Oak of Sherwood Forest in Nottinghamshire appears to be close to death.

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Uniting for Oaks: Mesoamerican Oak Research at the ATBC Meeting in Oaxaca, Mexico

By Tarin Toledo Aceves | July 26, 2025

Researchers and practitioners from Guatemala, Costa Rica, Colombia, Mexico, and the United States shared latest findings on Mesoamerican oaks in Oaxaca, Mexico.

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Oaks in Scotland: An Unresolved Question?

By Steve Potter | April 17, 2025

Is Q. robur invading Q. petraea populations or is it the other way around?

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Oak Decline Observations in California and the Mediterranean Basin

By Steve Potter | April 17, 2025

Network map of co-occurrence of causal factor categories identified in the selected papers

A team led by IOS member Marco Neves Marques has published an extensive literature review covering oak declines in Mediterranean-type climate regions

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Quercus rubra Chosen Tree of the Year in Germany

By Website Editor | December 16, 2024

The Tree of the Year Association in Germany selected a non-native species.

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Quercus boyntonii Conservation Action Plan

By Website Editor | October 29, 2024

Partners at The Morton Arboretum, in collaboration with members of the Global Conservation Consortium for Oak (GCCO), recently published the Quercus boyntonii conservation action plan in July 2024 (you can access the final plan here).

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Conservation Gap Analysis of Native Mesoamerican Oaks

By Website Editor | October 29, 2024

Publication now available online

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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

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...