There are three members of the redwood family: coast redwoods (Sequoia sempervirens) of the California coastal fog belt, giant sequoias (Sequoiadendron giganteum) of the Sierra Nevada, and dawn redwoods (Metasequoia glyptostroboides) of central China. The names sequoia and redwood are often used interchangeably, leading to confusion between the two California members of this family, but they are very different trees.