]> GH barcode-02121386 United States of America Utah ridges on the San Rafael Swell, 34 miles north of Hanksville. Twp. 24 S., R. 11 E., about S. 19. Penstemon pachyphyllus (A. Gray) Rydberg (A. Gray) Rydberg 2022-03-25 17:17:37 A. J. Cronquist