Despite its similar scientific botanical name, not a sister-species to
giant sequoia Sequoiadendron giganteum.
But it is a close cousin, with both trees being in the same
sequoia subfamily Sequoioideae
in
cypress / juniper / redwood family Cupressaceae
in
🌲︎ conifer order Pinales.
And both trees share being the 🏛🌲︎ state tree of California.
Native to a thin strip along the Pacific Ocean, in the 🏔 coastal mountains of central and northern California, extending a bit into southwestern Oregon.
🗺 Map by county (🇺🇸 USA-48)
(color key),
🗺 map (scroll down),
🗺 map (North America, Central America). 
This tree's range was much larger: to Los Angeles during the Last Glacial Period, and across Europe and Asia before the Quaternary ice ages.
Said to get much of its 💦︎ water (and fixed nitrogen
) by its local ☀︎🌫 summer fog — collecting fog on its small needles, and absorbing the water through its needles or bark, or dripping it toward its roots.
Uses by native peoples
(Ethnobotany database)
Its 🪵 wood is used to make ukuleles and mandolins, and for other uses needing durability.