Summary[edit] Description: Penstemon thurberi, southeast of Safford near Foote Draw on the west side of the San Simon River, Graham County, Arizona, 2 Nov 2014. Date: 2 November 2014, 14:59. Source: Penstemon thurberi. Author: Patrick Alexander from Las Cruces, NM.
Summary[edit] Description: English: Penstemon thurberi at the Wild Animal Park, Escondido, California, USA. Identified by sign. Date: 3 April 2009. Source: Own work. Author: Stickpen. Permission(Reusing this file): released to public domain.