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Editor's Picks

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Dr. Michael Avishai, a leading oak expert, botanist, and...
Ori Fragman-Sapir | Feb 08, 2019
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The Huntington, in San Marino, CA, obtained a grant from...
Website Editor | Feb 08, 2019
It may surprise you to learn that we are not the first Oak...
Shaun Haddock | Dec 15, 2018

Plant Focus

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Quercus douglasii is an endemic California oak tree, affectionately called “the blue oak” due to its distinctive blueish-green leaf color....

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United States Forest Service, R1:47, 49

United States National Tree Bill, R1:18

United States National tree campaign, 3:36

United States national tree nomination, R1:11

United States of Europe oak, postage stamp, 3:30

University of California Berkeley Department of Forestry and Resource Management, R1:49

University of California Cooperative Extension (Davis), R1:47

University of California Division of Agriculture and Natural Resources, R1:48

University of California Museum of Vertebrate Zoology (Berkeley), R1:49

Urban landscapes (landscaping), 3:14-20

Urban landscapes (landscaping), see also individual species names

Utah white oak see : Quercus gambelii Nutt.


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