Acorns

Oaks Behaving Strangely

By Allen Coombes | January 14, 2025

Allen Coombes shares observations of unexpected phenology in oaks in the University of Puebla BG.

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Seed Exchange Guidelines

By Guy Sternberg | April 17, 2022

What to know about participating in the IOS Seed Exchange

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Acorn Onomastics

By Roderick Cameron | December 1, 2021

Spanish has many words related to acorns.

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The Acorn-ulator

By Website Editor | October 14, 2021

Using acorns to teach maths

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Editor's Picks

Oaks in Scotland: An Unresolved Question?

Is Q. robur invading Q. petraea populations or is it the...

Steve Potter | Apr 17, 2025

Species Spotlight: Quercus carduchorum K.Koch

A rare species from the Zagros forests in Iran

Website Editor | Apr 17, 2025

The Origin, Locations, and Date of Planting of Colonial Williamsburg’s Compton Oak

The landmark oak was found as a naturally occurring hybrid

Ricklin Brown | Apr 05, 2025

Plant Focus

Quercus kotschyana fruit and leaves in Jaj cedars nature reserve

Species Spotlight: Quercus kotschyana O.Schwarz

A rare oak endemic to Lebanon.