Quercus agrifolia
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The coast live oak, also called the California live oak, is a live oak native to the California Floristic Province. Live oaks are so-called because they keep living leaves on the tree all year, adding
Q. agrifolia acorns and leaves
Coast live oak at Rancho Los Encinos in the San Fernando Valley
Detail of the catkins
Quercus douglasii
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Quercus douglasii, known as blue oak, is a species of oak endemic to California, common in the Coast Ranges and the foothills of the Sierra Nevada. It is California's most drought-tolerant deciduous o
Galls on leaf
Bluish color is visible at a distance contrasting with Coast live oaks and Valley oaks.
Leaf variation, from smooth to lobed to pointed lobes