Sequoiadendron

Superregnum: Eukaryota
Regnum: Plantae
Divisio: Tracheophyta
Divisio: Pinophyta
Classis: Pinopsida
Ordo: Pinales

Familia: Cupressaceae
Subfamilia: Sequoioideae
Genus: Sequoiadendron
Species: S. giganteum
Name

Sequoiadendron J.Buchholz, Amer. J. Bot. 26: 536. (1939).

Type species: Wellingtonia gigantea Lindl.

Synonyms

Replaced synonym
Wellingtonia Lindl., Gard. Chron. 1852: 823 (1853), nom. illeg. non Wellingtonia Meisn., Pl. Vasc. Gen. 2: 207 (1840).
Homotypic
Condylocarpus Salisb. ex Lamb., Descr. Pinus, ed. 3, 1: 120 (1832), non Condylocarpus Hoffm., Gen. Umb., ed. 2: 202. (1816).
Gigantabies J.Nelson, Pinaceae: 77 (1866), nom. nud.
Steinhauera C.Presl, Fl. Vorwelt 2: 202 (1838)
Americus Hanford, Great Calif. Tree: 6 (1854), nom. utique rej.
Washingtonia Winslow, Calif. Farmer & J. Useful Sci. 2: 58 (1854), nom. rej. non Washingtonia H.Wendl., Bot. Zeitung (Berlin) 37: 68. (1879).

Distribution
Native distribution areas:

Continental: Northern America
Regional: Southwestern U.S.A.
California.

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
References
Primary references

Buchholz, J.T. 1939. The Generic Segregation of the Sequoias. American Journal of Botany 26(7): 535–538. DOI: 10.1002/j.1537-2197.1939.tb09314.x Paywall JSTOR Hybrid open access journal Reference page.

Links

Govaerts, R. et al. 2017. Sequoiadendron in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2017 Feb. 23. Reference page.
International Plant Names Index. 2017. Sequoiadendron. Published online. Accessed: Feb. 23 2017.
Tropicos.org 2017. Sequoiadendron. Missouri Botanical Garden. Published online. Accessed: 23 Feb. 2017.

Vernacular names
العربية: سكوية ضخمة
беларуская: Секвоядэндран
dansk: Mammuttræ
Deutsch: Riesenmammutbäume
Ελληνικά: Σεκοϊάδενδρο
English: Giant Sequoia
Esperanto: Sekvojadendro
فارسی: درخت غول
français: Séquoia géant
հայերեն: Սեքվոյադենդրոն
перем коми: Секвойядендрон
коми: Секвойядендрон
кырык мары: Секвойядендрон
Nederlands: Mammoetboom
norsk: Mammuttre
русский: Секвойядендрон
svenska: Mammutträd
українська: Секвоядендрон

Sequoiadendron is a genus of evergreen trees, with two species, only one of which survives to the present:[1]

Sequoiadendron giganteum, extant, commonly known as wellingtonia, giant redwood and giant sequoia,[2] growing naturally in the Sierra Nevada of California[3]
† Sequoiadendron chaneyi, extinct, the predecessor of Sequoiadendron giganteum, found mostly in the Nevada part of the Tertiary Colorado Plateau until the late Miocene[4]

Fossil record
Sequoiadendron chaneyi foliage fossil, Nevada

Sequoiadendron fossil pollen and macrofossils may have been found as early as the Cretaceous[5] and throughout the Northern Hemisphere,[6] including locations in western Georgia in the Caucasus region.[7]
References

"Kew World Checklist of Selected Plant Families".
"Wellingtonia - Sequoiadendron giganteum". NatureSpot. Retrieved 2022-01-27.
"2013 county distribution map". Biota of North America.
Axelrod, Daniel L. (1959). "Late Cenozoic evolution of the Sierran Bigtree forest". Evolution. 13 (1): 9–23. doi:10.1111/j.1558-5646.1959.tb02990.x. JSTOR 2405942.
Sokolova, AB; Moiseeva, MG (2016). "A new species of the genus Sequoiadendron Buchholz (Cupressaceae) from the Upper Cretaceous of the Enmyvaam River Basin, Central Chukotka". Paleontological Journal. 50 (1): 96–107. doi:10.1134/S003103011601010X. S2CID 129990538.
Chaney, Ralph W (1950). "A Revision of Fossil Sequoia and Taxodium in Western North America Based on the Recent Discovery of Metasequoia". Transactions of the American Philosophical Society. 40 (3): 188. doi:10.2307/1005641. JSTOR 1005641.
Shatilova, Irina; Mchedlishvili, Nino; Rukhadze, Luara; Kvavadze, Eliso (2011). The History of the Flora and Vegetation of Georgia. Tbilisi: Georgian National Museum Institute of Paleobiology. ISBN 978-9941-9105-3-1.