‘Green Industry Images’ Copyrighted Photograph; Permission Granted; Tsuga canadensis 'Hiti' = 'Pomfret' (Erhardt - 'List of Conifer Names) Erhardt, Walter - 'List of Conifer Names' (2005); ISBN: 3800148813 Photo named: 'Pomfret' and photographed at Bickelhaupt Arboretum located in Clinton, Iowa.