Washingtonia Winslow Dataset GBIF Backbone Taxonomy Rank GENUS Published in Calif. Farmer & J. Useful Sci. 2: 58 (1854) Classification kingdom Plantae phylum Tracheophyta class Pinopsida order Pinales family Cupressaceae genus Sequoiadendron Name Homonyms Washingtonia H.Wendl. Washingtonia Raf. Washingtonia Winslow Washingtonia Raf. ex J.M.Coult. & Rose