Plant Focus

Species Spotlight: Quercus mohriana Buckley ex Rydb.

By Adam Black | April 16, 2022

A shrub oak from the U.S. Southwest

Read more about Species Spotlight: Quercus mohriana Buckley ex Rydb.

Hybrid Highlight: the Langtry Oak

By Thierry Lamant | April 13, 2022

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

Read more about Hybrid Highlight: the Langtry Oak

Species Spotlight: Quercus leucotrichophora A. Camus

By Meenakshi Negi | February 12, 2022

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

Read more about Species Spotlight: Quercus leucotrichophora A. Camus

Species Spotlight: Quercus costaricensis Liebm.

By Francisco Garin... | November 25, 2021

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

Read more about Species Spotlight: Quercus costaricensis Liebm.

Cultivar Close-Up: Quercus aliena 'Lutea'

By Roderick Cameron | October 11, 2021

A gold-leaf cultivar of a Japanese oak is popular in Australia

Read more about Cultivar Close-Up: Quercus aliena 'Lutea'

Species Spotlight: Quercus infectoria subsp. veneris (A. Kern.) Meikle

By Jean Stephan | October 10, 2021

Figure 2: Lobed leaves of Boissier oak covered with honeydew, Baskinta, Lebanon

Boissier oak was originally named Quercus boissieri Reut. and later Quercus boissieri var. latifolia (Boiss.) Zohary, but the current accepted name is Q. infectoria subsp. veneris (A. Kern.) Meikle

Read more about Species Spotlight: Quercus infectoria subsp. veneris (A. Kern.) Meikle

Hybrid Highlight: Quercus ×comptoniae Sarg.

By Roderick Cameron | June 16, 2021

The Compton oak at Colonial Williamsburg

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

Read more about Hybrid Highlight: Quercus ×comptoniae Sarg.

Cultivar Close-Up: Quercus ‘New Madrid’, Sorting Out the Confusion

By Ryan Russell | February 9, 2021

Disentangling the cultivar published as Quercus texana ‘New Madrid’

Read more about Cultivar Close-Up: Quercus ‘New Madrid’, Sorting Out the Confusion

Species Spotlight: Quercus skinneri Benth.

By Francisco Garin... | December 6, 2020

Quercus skinneri is a Central American oak, distinguished by the large size of its fruit.

Read more about Species Spotlight: Quercus skinneri Benth.

Species Spotlight: Quercus lyrata Walter

By Matt Candeias | October 6, 2020

A guest post by Matt Candeias, host of the In Defense of Plants podcast and blog

Read more about Species Spotlight: Quercus lyrata Walter

Editor's Picks

Taxonomists Huddle at Harvard

The Harvard University Herbaria hosted a novel Oak Taxonomy...

Jeannine Cavender-Bares | Apr 21, 2026

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

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...

Species Spotlight: Quercus mohriana Buckley ex Rydb.

By Adam Black | April 16, 2022

A shrub oak from the U.S. Southwest

Read more about Species Spotlight: Quercus mohriana Buckley ex Rydb.

Hybrid Highlight: the Langtry Oak

By Thierry Lamant | April 13, 2022

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

Read more about Hybrid Highlight: the Langtry Oak

Species Spotlight: Quercus leucotrichophora A. Camus

By Meenakshi Negi | February 12, 2022

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

Read more about Species Spotlight: Quercus leucotrichophora A. Camus

Species Spotlight: Quercus costaricensis Liebm.

By Francisco Garin... | November 25, 2021

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

Read more about Species Spotlight: Quercus costaricensis Liebm.

Cultivar Close-Up: Quercus aliena 'Lutea'

By Roderick Cameron | October 11, 2021

A gold-leaf cultivar of a Japanese oak is popular in Australia

Read more about Cultivar Close-Up: Quercus aliena 'Lutea'

Species Spotlight: Quercus infectoria subsp. veneris (A. Kern.) Meikle

By Jean Stephan | October 10, 2021

Read more about Species Spotlight: Quercus infectoria subsp. veneris (A. Kern.) Meikle

Hybrid Highlight: Quercus ×comptoniae Sarg.

By Roderick Cameron | June 16, 2021

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

Read more about Hybrid Highlight: Quercus ×comptoniae Sarg.

Cultivar Close-Up: Quercus ‘New Madrid’, Sorting Out the Confusion

By Ryan Russell | February 9, 2021

Disentangling the cultivar published as Quercus texana ‘New Madrid’

Read more about Cultivar Close-Up: Quercus ‘New Madrid’, Sorting Out the Confusion

Species Spotlight: Quercus skinneri Benth.

By Francisco Garin... | December 6, 2020

Quercus skinneri is a Central American oak, distinguished by the large size of its fruit.

Read more about Species Spotlight: Quercus skinneri Benth.

Species Spotlight: Quercus lyrata Walter

By Matt Candeias | October 6, 2020

A guest post by Matt Candeias, host of the In Defense of Plants podcast and blog

Read more about Species Spotlight: Quercus lyrata Walter

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