Quercus chrysolepis (Canyon Live
A fine evergreen, broad-leaved tree, this oak is found from south-western Oregon, throughout California and east to Nevada and Arizona. It is hardy in USDA zones 5-10 and grows on dry, rocky slopes and in canyons.
A mature tree will reach 30 - 80' and develop a wide, majestic crown.
The yellow-green, 3" leaves are white underneath and can be either smooth or serrated.
Plant this beauty in a dry, well-drained site, in sun or partial shade.
Do not over-water, fertilize or use any insecticide or fungicide on it.
Probably the most ancient of American oaks, the hard wood of this tree was used extensively by early settlers for mauls (giving it one of its many names) and as wagon wheels.
Photo below center courtesy of Walter Siegmund.