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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

Swamp Chestnut Oak Growing in Brussels, Belgium

 

In October 2006, I traveled from Petersburg, IL to Dallas, TX with Guy Sternberg and a few other members of the Society to attend the 2006 IOS Conference.  On our way, I collected a few acorns of Quercus michauxii in East Prairie, MO. In March 2010, I gave two seedlings of that collection to the Public Park Service of Brussels (I mean Brussels in Belgium; not the much smaller Brussels in Illinois).  And here is one of the seedlings growing in a small public park, le Parc de l'Abbé Froidure. It is unusal for an oak from a continental climate to do so well in a maritime climate. The tree seems to like its urban environment. And it was recorded today in the inventory of Belgian Trees.

Quercus michauxii
Quercus michauxii, 7th September 2016, Parc de l'Abbé Froidure, Brussels (photo Philippe de Spoelberch)