]> GH barcode-01801383 United States of America Utah along Bull Creek, a little southwest of Bull Mt., Henry Mts., 20 miles south of Hanksville. Twp. 31 S., R. 10 E., about S. 12. Penstemon watsonii A. Gray A. Gray 2022-05-05 14:24:29 A. J. Cronquist & N. Holmgren