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Common names include coast redwood, coastal redwood and California redwood. It is an evergreen , long-lived, monoecious tree living 1,200–2,200 years or more. [ 4 ] This species includes the tallest living trees on Earth, reaching up to 115.9 m (380.1 ft) in height (without the roots ) and up to 8.9 m (29 ft) in diameter at breast height .
Redwood National and State Parks as 120,000 acres (49,000 ha) of public lands, 80,000 acres (32,000 ha) of this land were commercially logged in the past. [3] About 96 percent of the world's old-growth coast redwood forest has been logged. The work is being done in the California Coast Ranges in North Coast of California's Redwood forests. [4]
It is believed that the unique combination of coastal fog and ample sunlight in the inland East Bay provides optimal growth conditions for redwoods. [2] A tributary connects with the main stem of Redwood Creek in Contra Costa County, CA (March 12th, 2023) San Leandro Creek courses through the Redwoods during a spring rainstorm.
Many of the coast redwoods (Sequoia sempervirens) grow to over 300 feet (91 m) in height. The forests on alluvial plains are almost pure redwood forest, but the forests on the slopes also contain Douglas-fir. [citation needed] Over 100 of the 137 known trees over 350 feet (110 m) tall—all coast redwoods—occur in Humboldt Redwoods State Park.
The park consists of 9,500 acres (3,800 ha) of redwood trees, including several groves of old growth trees. One of the groves, totaling 5,000 acres (2,000 ha), includes the world's largest (not tallest) coast redwood, which measures 20 feet (6.1 m) in diameter and 340 feet (100 m) tall.
The park is part of a historical belt of coast redwood extending south to Leona Canyon Regional Open Space Preserve and east to Moraga. [2] Redwood forests are more commonly found closer to the coast where the air is cool and humid year-round. In the Bay Area, such forests are found in the Santa Cruz Mountains and the Marin Hills. The unique ...
After two years of growth, they were about 0.75 metres in height. In 1950, after nearly 14 years of growth, the local forester reported that the trees were only just beginning to appear above the canopy of scrub. Two years later, the maximum tree height was 10.5 metres with a diameter of about 25 to 30 cm. [1]
Coast redwood (Sequoia sempervirens) groves — native to central and northern coastal California. These are primarily protected old growth forests . For Sequoiadendron giganteum groves in the Sierra Nevada, see Category: Giant sequoia groves .