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Burke Oak Collection at New York Botanical Garden

The Coleman and Susan Burke Oak Collection at The New York Botanical Garden features more than 150 oaks representing 44 taxa

Importing Endangered Engelmann Oaks into Australia

Boyce Thompson Arboretum

Cactus and Succulents Garden, Boyce Thompson Arboretum

Boyce Thompson Arboretum is the oldest and largest botanical garden in the state of Arizona.

Eastwoodhill Arboretum's "Trees for our Future"

Eastwoodhill logo

Eastwoodhill Arboretum launches "Trees for our Future" campaign.

Mexican Oaks at Armstrong Arboretum

Quercus rysophylla

Notable oaks from south of the border.

Pages

Editor's Picks

Past IOS President Allen Coombes, Curator of Scientific Collections at Puebla University Botanic Garden, discusses leaf variability in Quercus ceirpes (still image from the documentary)
A new documentary by Maricela Rodríguez Acosta
Website Editor | Feb 17, 2026
Quercus miyagii acorn and dried leaves
A rare oak endemic to the Ryukyu Islands of Japan
Elion Jam | Feb 16, 2026
A moss-covered oak (Quercus orocantabrica) in Mata de Albergaria, Peneda-Gerês National Park, Portugal  © Amit Zoran
Steve Potter reviews a new book that features oaks
Steve Potter | Feb 11, 2026

Plant Focus

Quercus canariensis in Cornwall Park, Epsom, Auckland, New Zealand, the champion specimen in New Zealand, planted in the 1920s, 27.2 m tall with a trunk diameter of 209 cm (G. Collett pers. comm. 2026)  © Gerald Collett
Antonio Lambe shares his views on this threatened oak native to Iberia and North Africa

Gardens & Arboreta

Burke Oak Collection at New York Botanical Garden

The Coleman and Susan Burke Oak Collection at The New York Botanical Garden features more than 150 oaks representing 44 taxa

Importing Endangered Engelmann Oaks into Australia

Boyce Thompson Arboretum

Cactus and Succulents Garden, Boyce Thompson Arboretum

Boyce Thompson Arboretum is the oldest and largest botanical garden in the state of Arizona.

Eastwoodhill Arboretum's "Trees for our Future"

Eastwoodhill logo

Eastwoodhill Arboretum launches "Trees for our Future" campaign.

Mexican Oaks at Armstrong Arboretum

Quercus rysophylla

Notable oaks from south of the border.

Pages

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

Supporting Institutional Members

 

Standard Institutional Members

Rice University
San Diego Botanic Garden logo
San Diego Zoo Wildlife Alliance logo
South Carolina Botanical Garden

 

The Huntington
The John Fairey Garden