Sequoia sempervirens /sÉ¨ËˆkwÉ”Éª.É™ sÉ›mpÉ™rËˆvaÉªrÉ™nz/ is the sole living species of the genus Sequoia in the cypress family Cupressaceae (formerly treated in Taxodiaceae). Common names include coast redwood, California redwood, and giant redwood. It is an evergreen, long-lived, monoecious tree living 1200â€“1800 years or more. This species includes the tallest trees on Earth, reaching up to 379 feet (115.52 m) in height and up to 26 feet (7.9 m) diameter at breast height. Before commercial logging and clearing began by the 1850s, this massive tree occurred naturally in an estimated 2.1 million acres along much of coastal California (excluding southern California where rainfall is not abundant enough) and the southwestern corner of coastal Oregon within the United States.