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Editor's Picks

Michael Eason hiking in Anza-Borrego Desert State Park to observe Washingtonia filifera in situ
Finding His Roots: Michael Eason's Journey in Conservation
Currently at San Antonio Botanic Garden, Michael's work has...
Amy Byrne | Feb 15, 2023
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Richard Geraint Evans: GPS Trees
An exhibition that beautifully depicts and locates oaks
Roderick Cameron | Feb 09, 2023
Burke Oak Collection at New York Botanical Garden
The Burke Oak Collection at The New York Botanical Garden
The Coleman and Susan Burke Oak Collection at The New York...
Todd Forrest | Feb 08, 2023

Plant Focus

Quercus xjackiana acorns
Hybrid Highlight: Quercus ×jackiana C.K. Schneid.
The hybrid of Q. alba and Q. bicolor
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Allen Coombes's blog

Is Quercus rugosa Showing Its Roots?

By Allen Coombes | October 18, 2022
Lobed leaf on Quercus rugosa

We know that some oaks, particularly Quercus robur, can produce forms with unusually cut leaves. Many of these have been documented in International Oaks and are listed at oaknames.org. We were very surprised, however, to find a very unusual shoot on a tree of Q. rugosa at the Puebla University Botanic Garden in Mexico.

Trees and Shrubs Online

By Allen Coombes | August 20, 2018
Quercus depressa

I have recently been asked to write or update the oak entries for Trees and Shrubs Online. This is a project to create a truly modern reference to temperate trees and shrubs. Currently there are articles for some 730 genera and 4,500 species, with each species article describing subspecies, forms and cultivars.