| 
                                    Penstemon wrightii Hook.
                                 | 
                                C. G. Pringle s.n. | 
                                10 Apr 1881 | 
                                United States of America | 
                                Arizona | 
                                Near Camp Lowell | 
                                — | 
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                                    Penstemon wrightii Hook.
                                 | 
                                C. G. Pringle s.n. | 
                                06 May 1881 | 
                                United States of America | 
                                Arizona | 
                                Santa Rita Mountains | 
                                — | 
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                                    Penstemon wrightii Hook.
                                 | 
                                C. G. Pringle 8026 | 
                                19 Apr 1884 | 
                                United States of America | 
                                Arizona | 
                                Santa Catalina Mountains | 
                                — | 
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                                    Penstemon wrightii Hook.
                                 | 
                                K. K. Muller 49-55 | 
                                Sep 1950 | 
                                United States of America | 
                                California | 
                                Santa Barbara Botanic Garden | 
                                — | 
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                                    Penstemon wrightii Hook.
                                 | 
                                G. Nisbet 849 | 
                                08 Jun 1941 | 
                                United States of America | 
                                New Mexico | 
                                Otero Co. Alamo Canyon, 4… | 
                                — | 
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                                    Penstemon wrightii Hook.
                                 | 
                                G. Nisbet 849 | 
                                08 Jun 1941 | 
                                United States of America | 
                                New Mexico | 
                                Otero Co. Alamo Canyon, 4… | 
                                — | 
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                                    Penstemon wrightii Hook.
                                 | 
                                G. Nisbet 849 | 
                                08 Jun 1941 | 
                                United States of America | 
                                New Mexico | 
                                Otero Co. Alamo Canyon, 4… | 
                                — | 
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                                    Penstemon wrightii Hook.
                                 | 
                                E. J. Palmer 30511 | 
                                07 Jun 1926 | 
                                United States of America | 
                                Texas | 
                                Brewster Co. Near Alpine | 
                                — | 
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                                    Penstemon wrightii Hook.
                                 | 
                                J. A. Moore 3036 | 
                                11 Jun 1931 | 
                                United States of America | 
                                Texas | 
                                Jeff Davis Co. Llittle Aguja… | 
                                — | 
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                                    Penstemon wrightii Hook.
                                 | 
                                S. M. Tracy 346 | 
                                29 Apr 1902 | 
                                United States of America | 
                                Texas | 
                                Davis Mountains | 
                                — | 
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                                    Penstemon wrightii Hook.
                                 | 
                                E. J. Palmer 34451 | 
                                10 Jun 1928 | 
                                United States of America | 
                                Texas | 
                                Brewster Co. Near Toronto | 
                                — | 
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                                    Penstemon wrightii Hook.
                                 | 
                                T. L. Steiger 1402 | 
                                01 May 1932 | 
                                United States of America | 
                                Texas | 
                                Alpine | 
                                — | 
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                                    Penstemon wrightii Hook.
                                 | 
                                T. L. Steiger 1693 | 
                                Apr 1933 | 
                                United States of America | 
                                Texas | 
                                Presidio Co. Shafter | 
                                — | 
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                                    Penstemon wrightii Hook.
                                 | 
                                T. L. Steiger 265 | 
                                Jun 1932 | 
                                United States of America | 
                                Texas | 
                                5 miles west of Alpine | 
                                — | 
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                                    Penstemon wrightii Hook.
                                 | 
                                U. T. Waterfall 4392 | 
                                08 Jun 1943 | 
                                United States of America | 
                                Texas | 
                                Reeves Co. 2 miles west… | 
                                — | 
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                                    Penstemon wrightii Hook.
                                 | 
                                F. M. Ownbey 1629 | 
                                14 Jun 1938 | 
                                United States of America | 
                                Texas | 
                                Jeff Davis Co. 14 miles… | 
                                — | 
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                                    Penstemon wrightii Hook.
                                 | 
                                D. C. Ingram 96159 | 
                                20 Apr 1929 | 
                                United States of America | 
                                Texas | 
                                Jeff Davis Co. Fort Davis | 
                                — | 
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                                | 
                                    Penstemon wrightii Hook.
                                 | 
                                J. K. Small 12049 | 
                                23 Apr 1925 | 
                                United States of America | 
                                Texas | 
                                Between Alpine and Fort Davis | 
                                — | 
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                                    Penstemon wrightii Hook.
                                 | 
                                L. C. Hinckley 337 | 
                                17 Aug 1935 | 
                                United States of America | 
                                Texas | 
                                Jeff Davis Co. West ridge,… | 
                                — | 
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                                    Penstemon wrightii Hook.
                                 | 
                                L. C. Hinckley 1251 | 
                                21 Jul 1940 | 
                                United States of America | 
                                Texas | 
                                Jeff Davis Co. Davis Mountains.… | 
                                — | 
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                                    Penstemon wrightii Hook.
                                 | 
                                L. C. Hinckley 1769 | 
                                20 Jun 1941 | 
                                United States of America | 
                                Texas | 
                                Presidio Co. Just above mouth… | 
                                — | 
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                                | 
                                    Penstemon wrightii Hook.
                                 | 
                                L. C. Hinckley 3828 | 
                                11 May 1947 | 
                                United States of America | 
                                Texas | 
                                Jeff Davis Co. Along Musquiz… | 
                                — | 
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                                | 
                                    Penstemon wrightii Hook.
                                 | 
                                C. C. Freeman 1991 | 
                                30 May 1983 | 
                                United States of America | 
                                Texas | 
                                Jeff Davis Co. Along TX… | 
                                — | 
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                                | 
                                    Penstemon wrightii Hook.
                                 | 
                                J. M. Smith 889 | 
                                25 Apr 1977 | 
                                United States of America | 
                                Texas | 
                                Jeff Davis Co. 12 miles… | 
                                — | 
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                                | 
                                    Penstemon wrightii Hook.
                                 | 
                                J. Reverchon 1573 | 
                                Jun 1885 | 
                                United States of America | 
                                Texas | 
                                Upper Hondo | 
                                — | 
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