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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

Arboretum des Pouyouleix in Arnoldia

In October 2015, after visiting the Polly Hill Arboretum on Martha’s Vineyard and before attending the 8th International Oak Society Conference in Lisle, Tim Boland, the Director of Polly Hill, organized for me an absolutely regal two-day visit of the Arnold Arboretum. Returning home, I received a request from Nancy Rose, the Editor of Arnoldia, to submit an article about the Arboretum des Pouyouleix for that publication. It has been published in the current issue and you can download the article here