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IOS Tour of California, Part 2: Southern California

IOS Tour of Oregon, September 2023

Tour Participants on Fiddler Peak

An account of the Tour guided by Sean Hogan

2022 Pre-Conference Tour: Western Texas

Group at salt flats near Guadalupe Mountains National Park

San Antonio to Las Cruces: oaks and more

2022 Pre-Conference Tour: New Mexico

Group under Mangas Mountain Gambel oak

Oaks and other attractions, from Albuquerque to Las Cruces.

2022 Post-Conference Tour: Arizona

Group at Tortilla Flat

Four days with the oaks of Arizona

Scouting for Quercus welshii

Quercus welshii on dunes site south of Kayenta, Ariz.

A threatened oak found in northern Arizona and southern Utah.

2018 Post-Conference Tour #1: San Francisco Bay Area

img_20181026_102717.jpg

Highlights of this tour included: University of California Botanical Garden at Berkeley, Long Ridge Open Space, Stanford oak woodland, and Apple Park.

Pages

Editor's Picks

Group photo at Mereweather Arboretum
Oak collections and much more in Canberra, New South Wales...
Website Editor | Aug 11, 2025
A controversial publication proposes to change the...
Roderick Cameron | Aug 05, 2025
Group photo with champion Quercus arkansana in Bokrijk Arboretum
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
A naturally occurring hybrid between Quercus robur and Q. alba.

Trip Reports

IOS Tour of California, Part 2: Southern California

IOS Tour of Oregon, September 2023

Tour Participants on Fiddler Peak

An account of the Tour guided by Sean Hogan

2022 Pre-Conference Tour: Western Texas

Group at salt flats near Guadalupe Mountains National Park

San Antonio to Las Cruces: oaks and more

2022 Pre-Conference Tour: New Mexico

Group under Mangas Mountain Gambel oak

Oaks and other attractions, from Albuquerque to Las Cruces.

2022 Post-Conference Tour: Arizona

Group at Tortilla Flat

Four days with the oaks of Arizona

Scouting for Quercus welshii

Quercus welshii on dunes site south of Kayenta, Ariz.

A threatened oak found in northern Arizona and southern Utah.

2018 Post-Conference Tour #1: San Francisco Bay Area

img_20181026_102717.jpg

Highlights of this tour included: University of California Botanical Garden at Berkeley, Long Ridge Open Space, Stanford oak woodland, and Apple Park.

Pages

The International Oak Society acknowledges the generous support of the following institutions:

Supporting Institutional Members

Standard Institutional Members

Rice University