Sequoiadendron

{{Short description|Genus of conifers in the cypress family Cupressaceae}}

{{Automatic taxobox

| fossil_range = {{Fossilrange|Santonian| Present}}

| image = Giant sequoias in Sequoia National Park 02 2013.jpg

| image_upright = 0.8

| image_caption = Trees in Sequoia National Park

| taxon = Sequoiadendron

| authority = J.Buchholz

| type_species = Sequoiadendron giganteum

| type_species_authority = (Lindley) J.Buchholz

| subdivision_ranks = Species

| subdivision =

• S. giganteum {{au|(Lindl.) J.Buchholz}}
• †S. chaneyi
• †S. tchucoticum

| synonyms_ref =

| synonyms = {{collapsible list|bullets = true

|title={{small|Sequoiadendron synonymy}}

|Americus
{{small|Hanford, rejected name}}

|Steinhauera {{small|C.Presl}} {{small|1838, not Goepp. 1835 (Altingiaceae)}}

|Washingtonia {{small|Winslow}} {{small|1854, rejected name, not H. Wendl. 1879 (Arecaceae) not Raf. ex J.M. Coult. & Rose 1900 (Apiaceae)}}

|Wellingtonia {{small|Lindl. 1853, illegitimate homonym, not Meisn. 1840 (Sabiaceae)}}

}}

}}

Sequoiadendron is a genus of evergreen trees, with three species, only one of which survives to the present:{{cite web|url=http://apps.kew.org/wcsp/namedetail.do?name_id=381300|title=Kew World Checklist of Selected Plant Families}}

• Sequoiadendron giganteum, extant, commonly known as wellingtonia, giant redwood and giant sequoia,{{cite web |title=Wellingtonia – Sequoiadendron giganteum |url=https://www.naturespot.org.uk/species/wellingtonia |access-date=2022-01-27 |work=NatureSpot}} growing naturally in the Sierra Nevada mountains of California{{cite web|url=http://bonap.net/MapGallery/County/Sequoiadendron%20giganteum.png|work=Biota of North America|title=2013 county distribution map}}
• † Sequoiadendron chaneyi, the predecessor of Sequoiadendron giganteum, found mostly in the Nevada area of the Tertiary Colorado Plateau until the late Miocene{{cite journal|first=Daniel L.|last=Axelrod|year=1959|jstor=2405942|title=Late Cenozoic evolution of the Sierran Bigtree forest|journal=Evolution|volume=13|issue=1|pages=9–23|doi=10.1111/j.1558-5646.1959.tb02990.x|doi-access=free}}
• †Sequoiadendron tchucoticum Late Cretaceous; Enmyvaam River Basin, Russia{{Cite journal|author1=A. B. Sokolova |author2=M. G. Moiseeva |year=2016 |title=A New Species of the Genus Sequoiadendron Buchholz (Cupressaceae) from the Upper Cretaceous of the Enmyvaam River Basin, Central Chukotka |journal=Paleontological Journal |volume=50 |issue=1 |pages=96–107 |url=https://elibrary.ru/item.asp?id=25069529 |doi=10.1134/S003103011601010X |s2cid=129990538 |url-access=subscription }}