Dendrology

The Red List of Oaks

By Website Editor | December 11, 2020

The Red List of Oaks 2020 has been published, detailing the completed IUCN Red List threat assessments for oaks.

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When Oak Leaves Fail to Fall

By Andrew Hipp | October 8, 2020

quercus_brittonii_ilicifolia_x_marilandica_new_jersey_-_93297-wld-222_-_20.12.04_009.jpg

Marcescent leaves persist on deciduous trees through winter.

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Ascent of the Oaks

By Website Editor | August 13, 2020

An article published in Scientific American recounts how advances in genomics have allowed researchers to reconstruct the evolutionary history of oaks.

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Fossils of Oak Ancestors Discovered in Argentina

By Website Editor | June 11, 2020

Researchers have unearthed a collection of chinquapin fruit and leaf fossils in Patagonia that suggests the Fagaceae family has evolutionary roots in the Southern Hemisphere.

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Cultivated Oaks of the World

By Roderick Cameron | April 12, 2020

A database that pools information on oak trees in collections around the world.

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The Renature Monchique Project

By Justin Roborg-S... | April 7, 2020

A project aims to recover and restore habitats in Serra de Monchique, Portugal.

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A Global Conservation Consortium for Oak

By Amy Byrne | February 17, 2020

The Global Conservation Consortium for Oak (GCCO) has launched! Developing the GCCO was a collaborative effort—and involvement from passionate IOS members was an integral component.

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In Search of an Endangered Species: Quercus acerifolia

By Ryan Russell | February 10, 2020

Quercus acerifolia (maple-leaf oak) is an endangered species in the wild (IUCN Red List)and a highly sought-after species in cultivation.

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Burr Oak Canyon Symposium 2019

By Dan Kostka | December 12, 2019

On October 17, 2019, 80 participants gathered in McCook, Nebraska for a two-day conference and field trip, titled “Growing Better Trees Across the Great Plains”.

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A-Sharnu: Restoring Oaks to the Sharon Region

By Website Editor | October 10, 2019

Ofri Bar's graduate thesis, A-Sharnu, is a program to regenerate Mt. Tabor oaks (Quercus ithaburensis) in the Sharon region.

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Editor's Picks

Oaks in Oz: Australian Oak Open Days, May 8–13, 2025

Oak collections and much more in Canberra, New South Wales...

Website Editor | Aug 11, 2025

Nay! Its Née, not Neé

A controversial publication proposes to change the...

Roderick Cameron | Aug 05, 2025

Group photo with champion Quercus arkansana in Bokrijk Arboretum

Belgian Oak Open Days: May 29–June 1, 2025

A team of reporters share their take on the event.

Website Editor | Jun 22, 2025

Plant Focus

Quercus ×bimundorum ‘Crimschmidt’ growing in the Prairie Arboretum, Freeman, South Dakota, USA © Dirk GiseburtQuercus ×bimundorum ‘Crimschmidt’ growing in the Prairie Arboretum, Freeman, South Dakota, USA © Dirk Giseburt

Hybrid Highlight: Quercus ×bimundorum E.J. Palmer, the ‘Oak of Two Worlds’

A naturally occurring hybrid between Quercus robur and Q. alba.