Sequoias, the Ancient Giants.
Sequoiadendron giganteum or the giant redwood is the sole living species in the genus Sequoiadendron, and one of three species of coniferous trees classified in the family Cupressaceae in the subfamily Sequoioideae; the Sequoia sempervirens and Sequoiadendron of California and Oregon (United States) and Metasequoia glyptostroboides (China). The redwood species contains the largest and tallest trees in the world, and these trees can live thousands of years. This is an endangered subfamily due to habitat losses from fire ecology suppression, logging, and air pollution. The common use of the name “sequoia” generally refers to Sequoiadendron giganteum, which occurs naturally only in groves on the western slopes of the Sierra Nevada Mountains of California. It is named after Sequoyah (1767–1843), the inventor of the Cherokee syllabary.
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