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
Quercus douglasii mature specimen Mount Diablo 6
Bluish color contrasts with darker green Coast live oaks.
Furrowed bark
Lobed leaves of Q. douglasii
California oak woodland
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California oak woodland is a plant community found throughout the California chaparral and woodlands ecoregion of California in the United States and northwestern Baja California in Mexico. Oak woodla
Quercus douglasii
…in the Coast Ranges and the foothills of the Sierra Nevada. It is California's most drought-tolerant deciduous oak, and is a dominant species in the blue oak woodland ecosystem. It is occasionally known as mountain oak and iron oak. Quercus douglasii is a medium-sized tree with sparse foliage, generally 6–20 meters…
California oak woodland on the east flank of Sonoma Mountain.