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

By Steve Potter | June 9, 2026
The current Red List status and modelled outlook for the eight Californian oak species, plus tanoak
New paper should significantly change our approach to assessing the risk to oaks from climate change

Species Spotlight: Quercus dumosa Nutt.

By Joseph Ree | August 8, 2024
Quercus dumosa acorn

Animals, plants, and fungi depend on this humble tree, but its future—and theirs—is all but certain.

Back from the Brink: Quercus tardifolia

By Website Editor | August 11, 2022
292539778_347822590870422_1318855334946924150_n.jpg

A single specimen found!

Editor's Picks

Michel Gandoger
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
A1's 2024 crop of acorns
Early Fruiting Quercus robur in Slovakia
Motivation I live in the village of Dolné Dubové...
Jozef Čapkovič | Jul 20, 2026

Plant Focus

Quercus afares, Kew, © James MacEwen
Species Spotlight: Quercus afares Pomel
The only oak species endemic to Africa is rare in cultivation. It shouldn't be.
Read more

endangered oaks

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

By Steve Potter | June 9, 2026
The current Red List status and modelled outlook for the eight Californian oak species, plus tanoak
New paper should significantly change our approach to assessing the risk to oaks from climate change

Species Spotlight: Quercus dumosa Nutt.

By Joseph Ree | August 8, 2024
Quercus dumosa acorn

Animals, plants, and fungi depend on this humble tree, but its future—and theirs—is all but certain.

Back from the Brink: Quercus tardifolia

By Website Editor | August 11, 2022
292539778_347822590870422_1318855334946924150_n.jpg

A single specimen found!

The International Oak Society acknowledges the generous support of the following institutions:

Supporting Institutional Members

Denver BG Logo
The Morton Arboretum logo
San Antonio Botanical Garden logo

The John Fairey Garden

Standard Institutional Members

Bartlett Tree Experts logo
Catalina Island Conservancy logo
Forrest Keeling Nursery logo
Houston Botanic Garden logo
KOAGI logo
Oak Spring Foundation
Rice University
San Diego Botanic Garden logo
San Diego Zoo Wildlife Alliance logo
South Carolina Botanical Garden
The Huntington