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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. [4] It is California's most drought-tolerant deciduous oak, [5] and is a dominant species in the blue oak woodland ecosystem. It is occasionally known as mountain oak and iron oak. [6] [7]
Buckinghamia celsissima is a large tree growing up to 30 m (98 ft) tall in its natural rainforest habitat, [4] but is much smaller when cultivated. [5] [6] The leaves are dark green above and somewhat glaucous or whitish below, held on petioles about 10–20 mm (0.4–0.8 in) long.
Oregon oak woodland is found in Northern California's Klamath-Siskiyou, Northern Coast Ranges, and southern Cascade Range.These woodlands are composed primarily of Oregon oak (Q. garryana), interior live oak (Q. wislizeni), and coast live oak, together with California black oak, canyon live oak, blue oak, Pacific madrone (Arbutus menziesii), California bay (Umbellularia californica), incense ...
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California Department of Parks and Recreation Los Osos Oaks State Natural Reserve is a California State Park in western San Luis Obispo County , in the Central Coast of California region. It preserves centuries-old coast live oaks ( Quercus agrifolia ) growing atop relict sand dunes . [ 2 ]
An Inland Empire city has approved a development project within 450 feet of the third oldest known living organism in the world — a sprawling, shrub-like oak tree that is more than 13,000 years old.
California's oldest tree, a Palmer's oak thought to be 13,000 to 18,000 years old, may be threatened by a proposed development, environmentalists say.
The Blue Oak Ranch Reserve, a unit of the University of California Natural Reserve System, is an ecological reserve and biological field station in Santa Clara County, California. It is located on 3,260 acres (13.2 km 2 ) in the Diablo Range , northwest of Mount Hamilton , at 1,500 ft (460 m) elevation .