- Sequoiadendron, genus Sequoiadendron - giant sequoias; sometimes included in the genus Sequoia; until recently placed in the Taxodiaceae
--1 is a kind of plant genus
--1 is a member of Cupressaceae, family Cupressaceae, cypress family
--1 has members:giant sequoia, big tree, Sierra redwood, Sequoiadendron giganteum, Sequoia gigantea, Sequoia Wellingtonia