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Editor's Picks

Carlos collecting Quercus ×alentejana (Q. faginea × Q. pyrenaica) in northeastern Portugal for his PhD thesis © Carlos Vila-Viçosa
An interview with Portuguese oak conservationist Dr. Carlos...
Amy Byrne | Apr 19, 2024
suriname_uprooted-oak-emblem-of-wry.jpg
Roderick Cameron | Apr 13, 2024
Pages from Gert's book
It was a great pleasure for me to be able to write about my...
Gert Fortgens | Feb 15, 2024

Plant Focus

Quercus crassipes acorns with inrolled cupule margin
One of the more well-known Mexican oaks in cultivation.

Blogs

We all know the best you can do with an acorn (turn it into an oak), but what can we do with a cupule? One answer is: whistle! It is a good skill to learn.
Acorn cap whistler in Extremadura
Posted Wed, 2024-04-17 21:33 in Roderick Cameron's blog
IOS member David Cranwell shared with us a bulletin about his work growing Quercus leucotrichophora in New Zealand.
himalayan-banj-oak-april2023.jpg
Posted Tue, 2024-04-16 21:51 in Website Editor's blog
IOS member Christy Powell, Horticulture Manager at San Diego Zoo Wildlife Alliance, shared an inspiring news story about retired science
Posted Mon, 2024-04-15 22:23 in Website Editor's blog
I recently had the opportunity of visiting the US National Champion Quercus robusta.
National Champion Quercus robusta
Posted Mon, 2024-04-15 18:37 in Michael Eason's blog
It was a great pleasure for me to be able to write about my 31 years of involvement with Arboretum Trompenburg in Rotterdam.
Pages from Gert's book
Posted Thu, 2024-02-15 12:55 in Gert Fortgens's blog
Veteran oaks are under threat of being removed
img_20231104_142221_mp.jpg
Posted Sat, 2023-12-23 13:48 in Hugo Ribeiro's blog
A new stamp issued by the United States Post Office in August 2023 depicts an oak, though not in a form that most quercophiles would recognize.
Oak featured on a new US stamp
Posted Sun, 2023-12-10 13:33 in Roderick Cameron's blog
A visit to Białowieża Forest in Poland
photo_3_0.jpg
Posted Mon, 2023-10-23 12:26 in Amit Zoran's blog
Chevithorne Barton hosted an Oak Study Day on July 21, 2023
An unusual acorn...© Chris West
Posted Mon, 2023-08-07 18:41 in Chris West's blog
Beech Leaf Disease is attacking Fagus species in North America.
Beech tree leaf disease
Posted Tue, 2023-06-20 19:52 in Website Editor's blog
The IOS recently received an inquiry from Jim Conrad about a strange phenomenon he observed on a twig of a Quercus
q_rugos2.jpg
Posted Tue, 2023-06-20 19:51 in Website Editor's blog
Shakespeare mentions oaks more than any other tree.
Falstaff at Hern's Oak
Posted Sun, 2023-04-23 15:56 in Roderick Cameron's blog

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