Log in

You are here

The author Sennen crops up regularly among the Spanish oaks.
sennen_in_his_herbarium.jpg
Posted Sun, 2022-02-13 10:38 in Patrick Vereecke's blog
Until recently, the name had been considered unplaced
obtecta_small_4.jpg
Posted Fri, 2021-03-26 11:07 in Patrick Vereecke's blog
A strange oak name explained
404655.jpg
Posted Tue, 2021-02-09 11:48 in Patrick Vereecke's blog
An unusual name based on a river in Turkey has quite a few variants
Quercus dschorochensis
Posted Sat, 2021-02-06 18:45 in Patrick Vereecke's blog
Linnaeus wrote in his prologue of Quercus cerris that it "lives in Spain," but the species does not occur naturally there...
duhamel_du_monceau_h.l._1819_traite_des_arbres_et_arbustes_nouvelle_edition_nouveau_duhamel_vol._7_t._57.jpg
Posted Wed, 2020-12-02 15:08 in Patrick Vereecke's blog
In some oak databases one can find a few oak names described by a certain Hansen. And in every instance there is no link to a publication whatsoever... 
Posted Sun, 2016-02-14 15:05 in Patrick Vereecke's blog

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

klokkeput's blog

The author Sennen crops up regularly among the Spanish oaks.
sennen_in_his_herbarium.jpg
Posted Sun, 2022-02-13 10:38 in Patrick Vereecke's blog
Until recently, the name had been considered unplaced
obtecta_small_4.jpg
Posted Fri, 2021-03-26 11:07 in Patrick Vereecke's blog
A strange oak name explained
404655.jpg
Posted Tue, 2021-02-09 11:48 in Patrick Vereecke's blog
An unusual name based on a river in Turkey has quite a few variants
Quercus dschorochensis
Posted Sat, 2021-02-06 18:45 in Patrick Vereecke's blog
Linnaeus wrote in his prologue of Quercus cerris that it "lives in Spain," but the species does not occur naturally there...
duhamel_du_monceau_h.l._1819_traite_des_arbres_et_arbustes_nouvelle_edition_nouveau_duhamel_vol._7_t._57.jpg
Posted Wed, 2020-12-02 15:08 in Patrick Vereecke's blog
In some oak databases one can find a few oak names described by a certain Hansen. And in every instance there is no link to a publication whatsoever... 
Posted Sun, 2016-02-14 15:05 in Patrick Vereecke's blog

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