reaching up to 379 feet in height and up to 26 feet diameter at breast height is tallest tree family in the world. This tree belongs to the Genus Sequoia. Coast redwood, coastal redwood and California redwood are some common name of coast redwood. This evergreen tree is long lived ( 1200–1800 years or more) [ Source: http://www.nps.gov/history/history/online_books/seki/stagner/sec2.htm ]
The bark of the tree is very thick, up to 30 cm, and quite soft, fibrous with a bright red-brown when freshly expose. The leaves are variable, being 15–25 mm long and flat on young trees and shaded shoots in the lower crown of old trees, and scale-like, 5–10 mm (0.20–0.39 in) long on shoots in full sun in the upper crown of older trees. They are dark green above, and with two blue-white stomatal bands below. Leaf arrangement is spiral, but the larger shade leaves are twisted at the base to lie in a flat plane for maximum light capture. The root system is composed of shallow, wide-spreading lateral roots.
The tallest and oldest trees are found in deep valleys and gullies, where year-round streams can flow, and fog drip is regular. The trees above the fog layer, above about 700 metres, are shorter and smaller due to the drier, windier, and colder conditions.
The thick, tannin-rich bark, combined with foliage that starts high above the ground provides good protection from both fire and insect damage, contributing to the coast redwood's longevity. The oldest known coast redwood is about 2,200 years old. [Source:http://www.conifers.org/cu/Sequoia.php]. Coast redwood reproduces both sexually by seed and asexually by sprouting of buds, layering, or lignotubers.
Coast redwood is one of the most valuable timber species in the lumbering industry. P.H. Shaughnessy, Chief Engineer of the San Francisco Fire Department wrote, "In the recent great fire of San Francisco, that began April 18th, 1906, we succeeded in finally stopping it in nearly all directions where the unburned buildings were almost entirely of frame construction, and if the exterior finish of these buildings had not been of redwood lumber, I am satisfied that the area of the burned district would have been greatly extended." The coast redwood has been grown in New Zealand plantations for over 100 years and is naturalized at Whakarewarewa Forest, Rotorua, New Zealand. One of the largest redwood stumps ever found are of 31 ft in diameter. It is found in the Oakland Hills in the Roberts Regional Recreation Area section of Redwood Regional Park.