IOS Tours

IOS Tour of the Carolinas

By Brent Moon | December 13, 2024

A report on the Tour that took place in October

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IOS Tour of California, Part 1: Northern California

By Chris Reynolds | October 30, 2024

From Davis to Los Angeles

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IOS Tour of California, Part 2: Southern California

By John Leszczynski | October 30, 2024

From Los Angeles to the Otay Mountains

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IOS Tour of Oregon, September 2023

By Website Editor | October 19, 2023

An account of the Tour guided by Sean Hogan

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2022 Pre-Conference Tour: Western Texas

By Philip Crim | October 13, 2022

Group at salt flats near Guadalupe Mountains National Park

San Antonio to Las Cruces: oaks and more

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2022 Pre-Conference Tour: New Mexico

By Mark Coggeshall | October 12, 2022

Oaks and other attractions, from Albuquerque to Las Cruces.

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2022 Post-Conference Tour: Arizona

By Wally Wilkins | October 12, 2022

Four days with the oaks of Arizona

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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.