The soft, fibrous bark of the coastal redwood is fire resistant. Tannins in the bark, which can be up to 12 inches thick on a mature tree, help protect the tree from insect damage. California’s coastal redwood is the tallest tree on earth, reaching as high as a 30-story building. Trunks as wide as 27 feet have been noted. The bark in the photo is from a younger example of a tree that can reach 2000 years old. On older trees, the bark is bright orange-red.
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