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Editor's Picks

A.G.B. Fairchild with Quercus skinneri acorns
David Fairchild's 1944 Expedition to Mesoamerica: Encounters with Quercus skinneri
The famous agricultural explorer was fascinated by the...
Website Editor | Apr 23, 2023
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A Fagaceae Species That Has Flummoxed Taxonomists
An encounter in Taiwan with a genus in Fagaceae I had never...
Roderick Cameron | Apr 15, 2023
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Climate Change Will Severely Impact the Evergreen Oaks in East Asian Evergreen Broadleaved Forests
New study seeks to understand impact of climate change on...
Min Deng | Apr 06, 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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North American Oaks

Hybrid Highlight: Quercus ×jackiana C.K. Schneid.

By Ryan Russell | February 9, 2023
Quercus xjackiana acorns

The hybrid of Q. alba and Q. bicolor

An Updated Infrageneric Classification of the North American Oaks

By Andrew Hipp | June 16, 2021
Phylogenetic tree

IOS members Paul Manos (Duke University) and Andrew Hipp (The Morton Arboretum) have just published a subsectional classification of North American Red and White Oaks