The redwood is the tallest tree, growing up to 370 feet (113 m) tall and living for over a thousand years. One redwood tree in California is 2,200 years old. The roots of this giant conifer are shallow, but spread sideways up to 250 feet (75 meters) from the trunk. The bark is deeply-furrowed, fibrous, thick [up to about 1 foot (30.5 cm) thick] and lacks resin. There are many species of redwood, including the giant coast redwood, Sequoia sempervirens.