]> GH barcode-01856512 United States of America Arizona Kaibab Trail about 3 miles from north terminus. Percipitous, south facing slope, Hermit Shale. Grand Canyon National Park. Argemone arizonica G. B. Ownbey G. B. Ownbey 2020-05-22 10:20:50 G. B. Ownbey & F. Ownbey