Sequoiadendron

Sequoiadendron
The General Grant tree in Kings Canyon National Park
Scientific classification
Kingdom:	Plantae
Division:	Pinophyta
Class:	Pinopsida
Order:	Pinales
Family:	Cupressaceae
Subfamily:	Sequoioideae
Genus:	Sequoiadendron J.Buchholz
Species
Sequoiadendron giganteum (Lindl.) J.Buchholz † Sequoiadendron chaneyi
Synonyms
Steinhauera C.Presl Wellingtonia Lindl. 1853, illegitimate homonym, not Meisn. 1840 (Sabiaceae) Americus Hanford, rejected name Washingtonia Winslow 1854, rejected name, not H. Wendl. 1879 (Arecaceae) not Raf. ex J.M. Coult. & Rose 1900 (Apiaceae)

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

Sequoiadendron pollen have been recovered from strata of early Pliocene until Günz glaciation of the in Western Georgia in the Caucasus region.

...
Wikipedia