]> GH barcode-02118350 United States of America Utah on Carmel Limestone; T41S, R8W, S27, ca 8 mi due W of Mt. Carmel, south of road to Zion National Park. Penstemon comarrhenus A. Gray A. Gray 2022-02-07 13:21:12 S. L. Welsh & K. H. Thorne