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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

Species Spotlight: Quercus mohriana Buckley ex Rydb.

By Adam Black | April 16, 2022
Quercus mohriana

A shrub oak from the U.S. Southwest

Hybrid Highlight: the Langtry Oak

By Thierry Lamant | April 13, 2022
q.sp_._langtry_3.jpg

A section Lobatae oak found in southern Texas may be a distinct, undescribed species.

Species Spotlight: Quercus leucotrichophora A. Camus

By Meenakshi Negi | February 12, 2022
figure_2.jpg

The decline in regeneration potential of Quercus leucotrichophora is of great concern in the Kumaun Himalayan region.

 

Pages

Editor's Picks

Yoko and John planting acorns
Yoko’s Oaks
"Japanese oaks" planted at Coventry Cathedral
Steve Potter | Dec 21, 2025
Group with Quercus macdougallii
Post-Conference Tour: Oaxaca
Six days exploring Oaxaca’s oak diversity, as reported by...
Wally Wilkins | Dec 10, 2025
One of the first planted circles on Hampton Common, London, in partnership with Orleans House Gallery 2025. © Studio Ackroyd & Harvey
Virtuous Circles: Oaks and the Art of Ackroyd & Harvey
Oaks planted in circles as a continuation of the artwork...
Steve Potter | Dec 10, 2025

Plant Focus

Champion Quercus castaneifolia in Iran
Species Spotlight: Quercus castaneifolia C.A.Mey
Chestnut-leaf oak in habitat and in cultivation
Read more

Plant Focus

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

Species Spotlight: Quercus mohriana Buckley ex Rydb.

By Adam Black | April 16, 2022
Quercus mohriana

A shrub oak from the U.S. Southwest

Hybrid Highlight: the Langtry Oak

By Thierry Lamant | April 13, 2022
q.sp_._langtry_3.jpg

A section Lobatae oak found in southern Texas may be a distinct, undescribed species.

Species Spotlight: Quercus leucotrichophora A. Camus

By Meenakshi Negi | February 12, 2022
figure_2.jpg

The decline in regeneration potential of Quercus leucotrichophora is of great concern in the Kumaun Himalayan region.

 

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
The Huntington
The John Fairey Garden