‘Green Industry Images’ Copyrighted Photograph; Permission Granted; The American Conifer Society does not recognize 'Pendula' as a cultivar. Erhardt, Walter - 'List of Conifer Names' nor does not recognize this name as being legitimate: Erhardt, Walter - 'List of Conifer Names' (2005); ISBN: 3800148813 I assume that Tsuga canadensis 'Sargentii' is correct but cannot confirm at this time.