Dendrology

The Morton Arboretum, United States Botanic Garden Partner to Protect Threatened Trees

By Website Editor | August 6, 2021

The Morton Arboretum and United States Botanic Garden (USBG) announce a new partnership to advance the conservation of threatened trees in the United States.

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GCCO in the Americas

By Website Editor | June 15, 2021

First joint meeting of the Global Conservation Consortium for Oak (GCCO) in the Americas

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Keeping Tabs on Quercus boyntonii

By Patrick Thompson | February 16, 2021

Conservation work focused on Alabama sandstone oak

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A Propagation Manual for Quercus—in Spanish

By Roderick Cameron | February 13, 2021

A new publication fills a void

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Emory Oak Collaborative Tribal Restoration Initiative

By Website Editor | February 12, 2021

Emory oak near Young, Arizona © Nanebah Lyndon

Emory oak acorns are a critically important commodity for Western Apache Tribes

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Oak-Focused Seminars Online

By Website Editor | February 12, 2021

Murphy Westwood and Tim Boland presented on oak diversity and conservation.

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A Request to IOS Members to Participate in an Oak Research Project

By Website Editor | February 10, 2021

A survey on specialization in oak species

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Conversations with Conservationists

By Website Editor | February 9, 2021

Two podcasts about oak conservation

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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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Editor's Picks

AcornBar: The Latest Development in Acorn Cuisine

The story behind acorn snacks enjoyed on IOS Tours last year

Editorial Staff | Jun 27, 2025

New Zealand Oak Open Days: May 15–18, 2025

Four days exploring oaks on the east coast of North Island

Website Editor | Jun 21, 2025

Tornado Strikes Starhill Forest Arboretum

Many trees have been lost due to an intense storm on May 15

Guy Sternberg | May 26, 2025

Plant Focus

Species Spotlight: Quercus carduchorum K.Koch

A rare species from the Zagros forests in Iran

The Morton Arboretum, United States Botanic Garden Partner to Protect Threatened Trees

By Website Editor | August 6, 2021

The Morton Arboretum and United States Botanic Garden (USBG) announce a new partnership to advance the conservation of threatened trees in the United States.