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Editor's Picks

Group by Sequoiadendron giganteum
IOS Tour of California, Part 1: Northern California
From Davis to Los Angeles
Chris Reynolds | Oct 30, 2024
Group photo at Otay Mountains
IOS Tour of California, Part 2: Southern California
From Los Angeles to the Otay Mountains
John Leszczynski | Oct 30, 2024
Quercus boyntonii Conservation Plan
Quercus boyntonii Conservation Action Plan
Partners at The Morton Arboretum, in collaboration with...
Website Editor | Oct 29, 2024

Plant Focus

Quercus dumosa acorn
Species Spotlight: Quercus dumosa Nutt.
Animals, plants, and fungi depend on this humble tree, but its future—and theirs—is all but certain.
Read more

Quercus engelmannii

Focus on Engelmann Oak

By CHARLES SNYERS D'ATTENHOVEN | December 15, 2018
engelman_sb_600x450_0.jpg

This blog entry focuses on the Engelmann oak grove at Los Angeles County Arboretum and Botanic Garden.

Saving Engelmann Oak One Acorn at a Time

By Website Editor | April 15, 2024

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