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Oak trees of California

Oak trees of California by J. Zimmerman, Ph.D.

Oaks are beloved trees of the open landscape of California, where they create drought-tolerant islands of shade and coolness. What kinds do we have, and where can you see them?

Oak Trees (Quercus).

Oaks in California are often a "keystone" species, providing habitat for hundreds or even thousands of other species. They profoundly influence the surrounding landscape.

See below for:

How to recognize an Oak Tree?

Appearance.

Oaks are beloved trees of the open landscape of California, where they create drought-tolerant islands of shade and coolness.

Acorns.

The fruit of an oak is the acorn, a one-seed nut fixed in a woody cup. The acorn and its cup have these features:

Leaves.

The leaves of an oak are usually deciduous, or evergreen in warmer climates. Oak leaves have these features:

Flowers.

Where can you see Oak Trees in California.

Oaks are widespread throughout California. The following species are likely to be seen in these regions:

  1. Coastal ranges.
  2. Central valleys.
  3. Sierra foothills.
  4. Sierra Nevada.
  5. Southwest.

Fun facts on oak trees.

Books on Oaks.

Buy Oaks of North America Buy Oaks of North America by Howard A. Miller, Samuel H. Lamb. An excellent short guide to North American oaks. Rich with facts to help the amateur and the professional botanist, the book teaches the reader not only how to identify oaks, but so much about them.

Resources - Related pages.


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