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Editor's Picks

Group photo at Tregrehan
UK Oak Open Days 2025: Caerhays and Tregrehan
Visits to two gardens with collections of oaks and other...
Stephen Wood | Oct 27, 2025
Special Service Award plaque
IOS Service Awards Presented at the 11th IOS Conference
Plaques presented during the Gala Dinner in Oaxaca
Roderick Cameron | Oct 26, 2025
Group photo at Oaxaca Conference
The 11th IOS Oak Conference in Oaxaca
140 participants from 20 countries attended the Triennial...
Nikola Šušić | Oct 25, 2025

Plant Focus

Quercus vulcanica acorn and leaves
Species Spotlight: Quercus vulcanica Boiss. & Heldr. ex Kotschy
An oak endemic to Turkey
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UK Champion Quercus ×andegavensis

By Charles Snyers ... | May 17, 2014

Last Monday, I visited Roath Park in Cardiff, Wales with IOS member Tony Titchen and a small group of members of the International Dendrology Society (some of them also members of the IOS).  The first sizable tree we came across was the UK champion Quercus ×andegavensis.  Quercus ×andegavensis Hy is a hybrid between Q. pyrenaica and Q. robur (See our oaknames database).  The tree was measured in 2004.  It had a height of 24 meters and a diameter of 121 centimeters. 

Quercus ×andegavensis Hy (1895)