]> GH barcode-02002423 United States of America Wyoming upper Black Rock Creek, west of Twogwotee Pass, Wind River Mountains. Penstemon attenuatus var. pseudoprocerus (Rydberg) Cronquist (Rydberg) Cronquist 2022-01-27 12:44:49 F. W. Pennell & R. L. Schaeffer, Jr.