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Species Spotlight: Quercus macdougallii Martínez

Quercus macdougallii

A rare oak endemic to the Sierra Juárez in Oaxaca

Hybrid Highlight: the Langtry Oak

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

figure_2.jpg

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

 

Species Spotlight: Quercus costaricensis Liebm.

Quercus costaricensis leaves

Quercus costaricensis is a Central American oak belonging to the subgenus Quercus, section Lobatae.

Hybrid Highlight: Quercus ×comptoniae Sarg.

The Compton oak at Colonial Williamsburg

A natural hybrid between Quercus lyrata (overcup oak) and Q. virginiana (Southern live oak)

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Editor's Picks

The story behind acorn snacks enjoyed on IOS Tours last year
Editorial Staff | Jun 27, 2025
Group photo at Guthrie-Smith Arboretum
Four days exploring oaks on the east coast of North Island
Website Editor | Jun 21, 2025
Catalpa destroyed by tornado
Many trees have been lost due to an intense storm on May 15
Guy Sternberg | May 26, 2025

Plant Focus

Acorn of Quercus carduchorum
A rare species from the Zagros forests in Iran

Plant Focus

Species Spotlight: Quercus macdougallii Martínez

Quercus macdougallii

A rare oak endemic to the Sierra Juárez in Oaxaca

Hybrid Highlight: the Langtry Oak

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

figure_2.jpg

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

 

Species Spotlight: Quercus costaricensis Liebm.

Quercus costaricensis leaves

Quercus costaricensis is a Central American oak belonging to the subgenus Quercus, section Lobatae.

Hybrid Highlight: Quercus ×comptoniae Sarg.

The Compton oak at Colonial Williamsburg

A natural hybrid between Quercus lyrata (overcup oak) and Q. virginiana (Southern live oak)

Pages

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Supporting Institutional Members

Standard Institutional Members