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Editor's Picks

Karl Georg Theodor Kotschy was an Austrian botanist and...
Eike Jablonski | Jun 11, 2016
Quercus grisea - Greenlee County, AZ
This article is an account of the oak field trip organized...
Charles Snyers | Sep 22, 2017
North American oaks have a northern temperate origin and...
Website Editor | Oct 12, 2017

Plant Focus

For this Species Spotlight we train our follow spot on an oak that is quite a star of the quercine scene: Quercus hypoleucoides (stage name...

Dendrology

Karl Georg Theodor Kotschy and the Kotschy Oak

Karl Georg Theodor Kotschy was an Austrian botanist and eminent plant explorer. He died 150 years ago in Vienna on June 11, 1866.

Vallonea or Aegilops Oaks, a Short Review

Quercus ithaburensis

A review of the assemblage of the oaks known as the "vallonea oaks" or "aegilops oaks" from the Eastern Mediterranean and the Levant.

Oak Red Listing Project Update

In January, 2015, The Morton Arboretum launched a project in collaboration with BGCI and the IUCN/SSC Global Tree Specialist Group, which aims to complete IUCN Red List threat assessments for all of the world's oak species. 

Garry Oak Project

The newly founded Oak Harbor Garry Oak Society in Oak Harbor, Washington is committed to the stewardship of Garry oak trees through outreach, education and preservation.

Truffle-oaks in Argentina

Where were most oaks planted in Argentina during the last three years? One might guess that it would be in one of the collections of the few quixotic quercophiles in that country, or perhaps a landscape designer with a preference for Quercus was responsible, or a particularly zealous specialist nursery.

This unusual hybrid was described by Paul Thomson in 1977 from a location in Lafayette County, Missouri. 

Damaged scrub oak habitat in central Florida is being restored—one acorn at a time.

For Acorns, Size Matters—and So Does Shape

The aim of this brief essay by Francisco Vázquez is to set out the more frequently encountered morphological variations in the genus Quercus and their possible causes and/or consequences within the niche or habitat occupied by the individual plants.

Oak Red Listing Project

In collaboration with BGCI and the IUCN/SSC Global Tree Specialist GroupThe Morton Arboretum has launched a project to complete threat assessments for all of the world’s oak species for the IUCN Red List

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