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

Quercus coccifera, 97 cm dbh and 15 m canopy spread

Cyprus, April-May 2026 – Vacation Impressions

Images and insights from Ezra Barnea’s journey to Cyprus’s...

Ezra Barnea | Jun 13, 2026

Lainey Kirshberger and Ryan Silver, students at Oklahoma State University, participated in the fieldwork and will lead the genetic and epigenetic analysis under the supervision of Dr. Antonio R. Castilla.

Epigenetics as a Potential Mechanism of Rapid Response to Climate Change in the Endangered Oak Quercus hinckleyi

Endangered oak Quercus hinckleyi shows strong genetic...

Website Editor | Jun 09, 2026

The current Red List status and modelled outlook for the eight Californian oak species, plus tanoak

The Threat to California’s Oaks Is Greater than Had Been Anticipated

New paper should significantly change our approach to...

Steve Potter | Jun 09, 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.