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Editor's Picks

Group by Sequoiadendron giganteum
From Davis to Los Angeles
Chris Reynolds | Oct 30, 2024
Group photo at Otay Mountains
From Los Angeles to the Otay Mountains
John Leszczynski | Oct 30, 2024
Quercus boyntonii Conservation Plan
Partners at The Morton Arboretum, in collaboration with...
Website Editor | Oct 29, 2024

Plant Focus

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

Colombian oaks

Not Another Oak Calamity…

Unusual symptoms linked to phytoplasma infection in Quercus humboldtiii, Colombia © Eric Boa

Symptoms linked to phytoplasma infection found in Quercus humboldtii in Colombia