Plant Focus

Species Spotlight: Quercus orocantabrica Rivas Mart., Penas, T.E.Díaz & Llamas

By Website Editor | April 18, 2026

Roderick Cameron and Carlos Vila-Viçosa give an account of this intriguing species from northwestern Iberia with a complex taxonomic and nomenclatural history.

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Species Spotlight: Quercus canariensis Willd.

By Antonio Lambe | February 16, 2026

Quercus canariensis in Cornwall Park, Epsom, Auckland, New Zealand, the champion specimen in New Zealand, planted in the 1920s, 27.2 m tall with a trunk diameter of 209 cm (G. Collett pers. comm. 2026) © Gerald Collett

Antonio Lambe shares his views on this threatened oak native to Iberia and North Africa

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Hybrid Highlight: Surolins – Quercus suber hybrids in Catalonia

By Àlan Olmedo | February 9, 2026

Map of the comarcas of Catalonia indicating the presence of Quercus suber hybrids

Àlan Olmedo has been documenting cork oak hybrids in northeastern Spain

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Species Spotlight: Quercus castaneifolia C.A.Mey

By Website Editor | December 7, 2025

Chestnut-leaf oak in habitat and in cultivation

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Species Spotlight: Quercus vulcanica Boiss. & Heldr. ex Kotschy

By Elif Deniz Ülker | October 23, 2025

An oak endemic to Turkey

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Hybrid Highlight: Quercus ×benderi and the Autumnal Mystery

By Website Editor | October 22, 2025

A hybrid with surprising fall color

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Hybrid Highlight: Quercus ×bimundorum E.J. Palmer, the ‘Oak of Two Worlds’

By Website Editor | August 4, 2025

Quercus ×bimundorum ‘Crimschmidt’ growing in the Prairie Arboretum, Freeman, South Dakota, USA © Dirk GiseburtQuercus ×bimundorum ‘Crimschmidt’ growing in the Prairie Arboretum, Freeman, South Dakota, USA © Dirk Giseburt

A naturally occurring hybrid between Quercus robur and Q. alba.

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Species Spotlight: Quercus carduchorum K.Koch

By Website Editor | April 17, 2025

A rare species from the Zagros forests in Iran

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Species Spotlight: Quercus kotschyana O.Schwarz

By Jean Stephan | April 5, 2025

Quercus kotschyana fruit and leaves in Jaj cedars nature reserve

A rare oak endemic to Lebanon.

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Species Spotlight: Quercus persica Jaub. & Spach

By Website Editor | February 10, 2025

Parisa Panahi and Mehdi Pourhashemi train the follow spot on a rare Iranian oak

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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 orocantabrica Rivas Mart., Penas, T.E.Díaz & Llamas

By Website Editor | April 18, 2026

Roderick Cameron and Carlos Vila-Viçosa give an account of this intriguing species from northwestern Iberia with a complex taxonomic and nomenclatural history.