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Editor's Picks

Share your oak story in Oaxaca!
Website Editor | Mar 17, 2025
Single stem bleed
Steve Potter reviews decline diseases affecting oaks in the...
Steve Potter | Feb 12, 2025
Oak Origins by Andrew Hipp
A review of Andrew Hipp's new book
Steve Potter | Feb 12, 2025

Plant Focus

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Quercus ×ludoviciana is a naturally occurring oak hybrid from southeastern United States, which has flourished and attracted attention in...

Website Editor's blog

Amato Lusitano on Fagaceae

Image from Enarrationes

A 16th century commentary on the medicinal property of oaks and aconrs

Andrew Hipp in Joey Santore's Podcast

Crime Pays But Botany Doesn't lgo

Andrew Hipp talked to the legendary Joey Santore about genus Quercus.

Aljos Farjon on Ancient Oaks

Ancient Oaks and Biodiveresity page 1

Aljos Farjon FLS reports on the biodiversity of High Park, a wild section of Blenheim Park in Oxfordshire, England.

David Cranwell's Himalayan Oaks in New Zealand

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IOS member David Cranwell shared with us a bulletin about his work growing Quercus leucotrichophora in New Zealand. This was presented at the New Zealand Farm Forestry Conference held in Napier, Hawke's Bay, April 9–13, 2024. David has been growing Q. leucotrichophora, also known as Himalayan oak or banj oak, in New Zealand since the late 1990s, initially from acorns imported from India.

Saving Engelmann Oak One Acorn at a Time

IOS member Christy Powell, Horticulture Manager at San Diego Zoo Wildlife Alliance, shared an inspiring news story.

Oak Cousins in Danger

Beech tree leaf disease

Beech Leaf Disease is attacking Fagus species in North America.

Jim Conrad's Oak Notes

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The IOS recently received an inquiry from Jim Conrad about a strange phenomenon he observed on a twig of a Quercus ×dysophylla in the Eastern Sierra Madre in Mexico, where what appeared to be multiple styles emerged from a bud. It turns out they may be fungal reproductive bodies.

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A new oak-themed mural beautifies an old brick wall in downtown Woodland, California. The artwork, commissioned in part by the Woodland Tree Foundation, features a mature Quercus lobata (valley oak), under which a California scrub jay (Aphelocoma californica) caches an acorn that is already sprouting a vigorous network of roots.

Educational Videos on GCCO Website

Propagating oaks by cuttings

Maricela Rodríguez interviewed staff and owners at key oak collections in the UK. 

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