]> GH barcode-00091244 United States of America Arizona Whitmore Canyon, 12.5 km. south of Mount Trumbull (abandoned town), T34N, R9W, S29, limestone-gravelly, north-facing slope in pinyon-juniper woodland, 1550 m Penstemon distans N. H. Holmgren N. H. Holmgren 2010-08-16 16:42:47 N. H. Holmgren, P. K. Holmgren & R. C. Barneby