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Species Spotlight: Quercus magnosquamata Djav.-Khoie

By Website Editor | December 10, 2024
Quercus magnosquamata acorn

A  little-known species from the northern Zagros forests of Iran

Species Spotlight: Quercus dumosa Nutt.

By Joseph Ree | August 8, 2024
Quercus dumosa acorn

Animals, plants, and fungi depend on this humble tree, but its future—and theirs—is all but certain.

Species Spotlight: Quercus peninsularis Trel.

By Roderick Cameron | June 27, 2024
Quercus peninsularis

A Red Oak (Section Lobatae) endemic to inland ranges of northern Baja California, Mexico

Species Spotlight: Quercus crassipes Bonpl.

By Roderick Cameron | April 22, 2024
Quercus crassipes acorns with inrolled cupule margin

One of the more well-known Mexican oaks in cultivation.

Species Spotlight: Quercus boyntonii

By Website Editor | August 11, 2023
A small but mature Alabama sandstone oak producing acorns © Patrick Thompson

A Critically Endangered dwarf oak 

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

By Ryan Russell | February 9, 2023
Quercus xjackiana acorns

The hybrid of Q. alba and Q. bicolor

Species Spotlight: Quercus macdougallii Martínez

By Nelly Pacheco Cruz | November 30, 2022
Quercus macdougallii

A rare oak endemic to the Sierra Juárez in Oaxaca

Pages

Editor's Picks

Group photo at Harvard Herbarium
Taxonomists Huddle at Harvard
The Harvard University Herbaria hosted a novel Oak Taxonomy...
Jeannine Cavender-Bares | Apr 21, 2026
Morgan and friends in Argentina
Argentine Oak Collections through Italian Eyes
Visits to three collections of Quercus in Buenos Aires...
Morgan Santini | Apr 05, 2026
Michel Duhart and Paco Garin at Jardín Botánico Wilson, Costa Rica
In Memoriam: Michel Duhart (1923–2026)
On April 1st, the very day he turned 103, a great friend...
Francisco Garin Garcia | Apr 05, 2026

Plant Focus

Quercus orocantabrica
Species Spotlight: Quercus orocantabrica Rivas Mart., Penas, T.E.Díaz & Llamas
Roderick Cameron and Carlos Vila-Viçosa give an account of this intriguing species from northwestern Iberia with a complex taxonomic and...
Read more

Plant Focus

Species Spotlight: Quercus magnosquamata Djav.-Khoie

By Website Editor | December 10, 2024
Quercus magnosquamata acorn

A  little-known species from the northern Zagros forests of Iran

Species Spotlight: Quercus dumosa Nutt.

By Joseph Ree | August 8, 2024
Quercus dumosa acorn

Animals, plants, and fungi depend on this humble tree, but its future—and theirs—is all but certain.

Species Spotlight: Quercus peninsularis Trel.

By Roderick Cameron | June 27, 2024
Quercus peninsularis

A Red Oak (Section Lobatae) endemic to inland ranges of northern Baja California, Mexico

Species Spotlight: Quercus crassipes Bonpl.

By Roderick Cameron | April 22, 2024
Quercus crassipes acorns with inrolled cupule margin

One of the more well-known Mexican oaks in cultivation.

Species Spotlight: Quercus boyntonii

By Website Editor | August 11, 2023
A small but mature Alabama sandstone oak producing acorns © Patrick Thompson

A Critically Endangered dwarf oak 

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

By Ryan Russell | February 9, 2023
Quercus xjackiana acorns

The hybrid of Q. alba and Q. bicolor

Species Spotlight: Quercus macdougallii Martínez

By Nelly Pacheco Cruz | November 30, 2022
Quercus macdougallii

A rare oak endemic to the Sierra Juárez in Oaxaca

Pages

The International Oak Society acknowledges the generous support of the following institutions:

Supporting Institutional Members

Denver BG Logo
The Morton Arboretum logo
San Antonio Botanical Garden logo

 

Standard Institutional Members

Bartlett Tree Experts logo
Catalina Island Conservancy logo
Forrest Keeling Nursery logo
Houston Botanic Garden logo
Rice University
San Diego Botanic Garden logo
San Diego Zoo Wildlife Alliance logo
South Carolina Botanical Garden

 

The Huntington
The John Fairey Garden