title: Sequoia sempervirens
context: The coast redwood can reach 115m (377ft) tall with a trunk diameter of 9m (30ft).[10] It has a conical crown, with horizontal to slightly drooping branches. The bark can be very thick, up to 1-foot (30cm), and quite soft and fibrous, with a bright red-brown color when freshly exposed (hence the name redwood), weathering darker. The root system is composed of shallow, wide-spreading lateral roots.
question: How thick is the bark of a redwood tree?
answers: up to 1-foot (30cm)