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Species Spotlight: Quercus carduchorum K.Koch

Acorn of Quercus carduchorum

A rare species from the Zagros forests in Iran

Species Spotlight: Quercus peninsularis Trel.

Quercus peninsularis

A Red Oak (Section Lobatae) endemic to inland ranges of northern Baja California, Mexico

Importing Endangered Engelmann Oaks into Australia

Editor's Picks

Yoko and John planting acorns
"Japanese oaks" planted at Coventry Cathedral
Steve Potter | Dec 21, 2025
Group with Quercus macdougallii
Six days exploring Oaxaca’s oak diversity, as reported by...
Wally Wilkins | Dec 10, 2025
One of the first planted circles on Hampton Common, London, in partnership  with Orleans House Gallery 2025.  © Studio Ackroyd & Harvey
Oaks planted in circles as a continuation of the artwork...
Steve Potter | Dec 10, 2025

Plant Focus

Champion Quercus castaneifolia in Iran
Chestnut-leaf oak in habitat and in cultivation

rare oaks

Species Spotlight: Quercus carduchorum K.Koch

Acorn of Quercus carduchorum

A rare species from the Zagros forests in Iran

Species Spotlight: Quercus peninsularis Trel.

Quercus peninsularis

A Red Oak (Section Lobatae) endemic to inland ranges of northern Baja California, Mexico

Importing Endangered Engelmann Oaks into Australia

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

Supporting Institutional Members

Standard Institutional Members

Rice University