Plant Focus

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.

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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

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Cultivar Close-Up: Bokrijk Cultivars

By Roderick Cameron | August 14, 2020

Six oak cultivars originally described by Jef Van Meulder in 2014.

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Species Spotlight: Quercus stenophylloides Hayata

By Joeri Strijk | June 8, 2020

Quercus stenophylloides is a medium-sized evergreen oak (15–18 m tall) restricted to central and northern Taiwan.

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Hybrid Highlight: Quercus ×vilmoriniana A.Camus

By Roderick Cameron | April 12, 2020

An intercontinental artificial hybrid raised at Arboretum national des Barres.

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Species Spotlight: Quercus hypophaea Hayata

By Joeri Strijk | April 9, 2020

First described by the Japanese botanist Bunzō Hayata in 1913, Quercus hypophaea is a medium to large evergreen oak restricted to the southeastern part of Taiwan.

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Species Spotlight: Quercus tarokoensis Hayata

By Joeri Strijk | February 10, 2020

Quercus tarokoensis (local name 太鲁阁栎 tai lu ge li, "oak of Taroko") is a fairly unknown oak species, restricted to eastern Taiwan.

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Cultivar Close-Up: Quercus 'Maya' and 'Zehra'

By Ryan Russell | February 10, 2020

There are a growing number of unique hybrid selections that feature Quercus rysophylla as one parent.

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Hybrid Highlight: Quercus ×ludoviciana Sarg.

By Roderick Cameron | December 15, 2019

Quercus ×ludoviciana is a naturally occurring oak hybrid from southeastern United States, which has flourished and attracted attention in collections worldwide. Over the years there has been some confusion regarding the hybrid’s parentage, but it is currently accepted to be a cross of Q. phellos (willow oak) and Q. pagoda (cherrybark oak).

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Cultivar Close-Up: Mighty Miniatures

By Ryan Russell | August 9, 2019

Dwarf cultivars can be ideal for a small garden. Here are three "mini oaks".

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Editor's Picks

Michel Gandoger in an albumen silver print dated 18 March 1876, dedicated on the reverse to Roberto de Visiani - Image: PHAIDRA University of Padova Attribution-NonCommercial-ShareAlike 4.0 International

Gandoger the Memorious

While working on a list of synonyms of European White...

Roderick Cameron | Aug 24, 2026

Cover of Select Native Asian Oaks Gap Analysis

Conservation Gap Analysis of Select Native Asian Oaks

Report led by The Morton Arboretum will help prioritize oak...

Website Editor | Aug 06, 2026

Early Fruiting Quercus robur in Slovakia

Motivation I live in the village of Dolné Dubové...

Jozef Čapkovič | Jul 20, 2026

Species Spotlight: Quercus afares Pomel

The only oak species endemic to Africa is rare in cultivation. It shouldn't be.