Giant Sequoia is the world's largest tree in terms of total volume.
They grow to an average height of 50-85 m (150-280 ft) and 5-7 m (16-23 ft) in diameter.
Record trees have been reported to be 93.6 m (307 ft) in height and 8.85 m (29 ft) in diameter.
The oldest known Giant Sequoia based on ring count is 3,200 years old.
Sequoia bark is fibrous, furrowed, and may be 60 cm (2 ft) thick at the base of the columnar trunk.
It provides significant fire protection for the trees.
The leaves are evergreen, awl-shaped, 3-6 mm long, and arranged spirally on the shoots.
The seed cones are 4-7 cm long and mature in 18-20 months, though they typically remain green and closed for up to 20 years; each cone has 30-50 spirally arranged scales, with several seeds on each scale giving an average of 230 seeds per cone.
The seed is dark brown, 4-5 mm long and 1 mm broad, with a 1 mm wide yellow-brown wing along each side.
Some seed is shed when the cone scales shrink during hot weather in late summer, but most seeds are liberated when the cone dries out from fire heat and/or insect damage.
Giant Sequoia is a very popular ornamental tree in many areas.
Areas where it is successfully grown include most of western and southern Europe, the Pacific Northwest of North America north to southwest British Columbia, southeast Australia, New Zealand and central-southern Chile.
It is also grown, though less successfully, in parts of eastern North America.
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