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Editor's Picks

Allan Taylor
A long-standing member of the IOS and fomer editor of Oak...
Panayoti Kelaidis | Dec 17, 2022
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A new study resolves many nomenclatural problems in the...
Carlos Vila-Viçosa | Dec 09, 2022
The team at SDZWA
Christy Powell of the San Diego Zoo Wildlife Alliance works...
Amy Byrne | Dec 06, 2022

Plant Focus

Quercus macdougallii
A rare oak endemic to the Sierra Juárez in Oaxaca

IOS Tours

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Two sequential Post-Conference Tours to the San Francisco Bay Area and the Central Coast region are being offered to allow for a range of schedules and budgets. Join us for an exploration of urban and wild oak landscapes along California's scenic coast.

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Two sequential Pre-Conference Tours to the Sierra Nevada and the Cascade-Siskiyou Mountain region are being offered to allow for a range of schedules and budgets. Join us as we explore the magnificent scenery and oak diversity in the mountains of Northern California.

Michael Meléndrez, long-time member of the IOS, will lead a ten-day filed trip in New Mexico from August 20 to 30, 2017.

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Staunch IOS member Mike Meléndrez is willing to share his encyclopaedic knowledge of the oaks of the U.S. Southwest with a double bill of tours, in 2016 and 2017. The first Tour will take place September 24-29, 2016. 

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A tour of southern Italy led by Belgian nurserymen Christof van Hulle and Dirk Benoit.