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                                    Achnatherum hymenoides (Roem. & Schult.) Barkworth
                                 | 
                                Collector unspecified 23 | 
                                1845 | 
                                — | 
                                — | 
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                                    Achnatherum hymenoides (Roem. & Schult.) Barkworth
                                 | 
                                A. Fendler 979 | 
                                1847 | 
                                United States of America | 
                                New Mexico | 
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                                — | 
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                                    Achnatherum hymenoides (Roem. & Schult.) Barkworth
                                 | 
                                C. Wright 1996 | 
                                Feb 1851 | 
                                United States of America | 
                                New Mexico | 
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                                — | 
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                                    Achnatherum hymenoides (Roem. & Schult.) Barkworth
                                 | 
                                Wright s.n. | 
                                1852 | 
                                — | 
                                — | 
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                                — | 
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                                    Achnatherum hymenoides (Roem. & Schult.) Barkworth
                                 | 
                                F. V. Hayden s.n. | 
                                May 1855 | 
                                United States of America | 
                                Nebraska | 
                                On Sage Creek, Bad lands. | 
                                — | 
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                                    Achnatherum hymenoides (Roem. & Schult.) Barkworth
                                 | 
                                H. Engelmann s.n. | 
                                1858 - 1859 | 
                                United States of America | 
                                Utah | 
                                Deserts east of Carson's Lake. | 
                                — | 
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                                    Achnatherum hymenoides (Roem. & Schult.) Barkworth
                                 | 
                                E. Bourgeau s.n. | 
                                1858 | 
                                Canada | 
                                Saskatchewan | 
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                                — | 
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                                    Achnatherum hymenoides (Roem. & Schult.) Barkworth
                                 | 
                                F. V. Hayden 19 | 
                                07 Jul 1860 | 
                                United States of America | 
                                — | 
                                To the Head Waters of… | 
                                — | 
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                                    Achnatherum hymenoides (Roem. & Schult.) Barkworth
                                 | 
                                E. Hall 633 | 
                                1862 | 
                                United States of America | 
                                — | 
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                                — | 
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                                    Achnatherum hymenoides (Roem. & Schult.) Barkworth
                                 | 
                                C. C. Parry 103 | 
                                1862 | 
                                United States of America | 
                                Colorado | 
                                Rocky Mountain[s]. Colorado Territory | 
                                — | 
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                                    Achnatherum hymenoides (Roem. & Schult.) Barkworth
                                 | 
                                R. H. Stretch s.n. | 
                                May 1865 -  Jun 1865 | 
                                United States of America | 
                                Nevada | 
                                Washoe Co. Washoe Valley | 
                                — | 
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                                    Achnatherum hymenoides (Roem. & Schult.) Barkworth
                                 | 
                                J. Torrey s.n. | 
                                1865 | 
                                United States of America | 
                                Nevada | 
                                Humboldt Mountains | 
                                — | 
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                                    Achnatherum hymenoides (Roem. & Schult.) Barkworth
                                 | 
                                J. Torrey 580 | 
                                1865 | 
                                United States of America | 
                                Nevada | 
                                Near Empire City. | 
                                — | 
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                                    Achnatherum hymenoides (Roem. & Schult.) Barkworth
                                 | 
                                J. Torrey 580 | 
                                1865 | 
                                United States of America | 
                                Nevada | 
                                Near Empire City. | 
                                — | 
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                                    Achnatherum hymenoides (Roem. & Schult.) Barkworth
                                 | 
                                J. D. Brotherson 1007 | 
                                27 May 1866 | 
                                United States of America | 
                                Utah | 
                                Uintah Co. 1/4 mile west… | 
                                — | 
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                                    Achnatherum hymenoides (Roem. & Schult.) Barkworth
                                 | 
                                H. N. Bolander s.n. | 
                                1866 | 
                                United States of America | 
                                California | 
                                Mono Pass. | 
                                — | 
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                                    Achnatherum hymenoides (Roem. & Schult.) Barkworth
                                 | 
                                Collector unspecified 622 | 
                                1868 | 
                                United States of America | 
                                Colorado | 
                                Rocky Mountains. | 
                                — | 
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                                    Achnatherum hymenoides (Roem. & Schult.) Barkworth
                                 | 
                                Miss E. D. Palmer  | 
                                1869 | 
                                United States of America | 
                                Arizona | 
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                                — | 
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                                    Achnatherum hymenoides (Roem. & Schult.) Barkworth
                                 | 
                                Collector unspecified s.n. | 
                                Aug 1871 | 
                                United States of America | 
                                Wyoming | 
                                Laramie Plains | 
                                — | 
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                                    Achnatherum hymenoides (Roem. & Schult.) Barkworth
                                 | 
                                J. H. Redfield 380 | 
                                22 Jul 1872 | 
                                United States of America | 
                                Colorado | 
                                Fremont Co. | 
                                — | 
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                                    Achnatherum hymenoides (Roem. & Schult.) Barkworth
                                 | 
                                J. Leidy s.n. | 
                                Aug 1872 | 
                                United States of America | 
                                Wyoming | 
                                Near Ft. Bridges. Wyoming Ter. | 
                                — | 
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                                    Achnatherum hymenoides (Roem. & Schult.) Barkworth
                                 | 
                                J. Leidy s.n. | 
                                Aug 1872 | 
                                United States of America | 
                                Wyoming | 
                                Uinta Mountains, Wyoming Ter. | 
                                — | 
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                                    Achnatherum hymenoides (Roem. & Schult.) Barkworth
                                 | 
                                J. Leidy s.n. | 
                                Aug 1872 | 
                                United States of America | 
                                Wyoming | 
                                Uinta Co. | 
                                — | 
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                                    Achnatherum hymenoides (Roem. & Schult.) Barkworth
                                 | 
                                J. H. Redfield 380 | 
                                02 Aug 1872 | 
                                United States of America | 
                                Utah | 
                                Granger, near Ham's Fork. | 
                                — | 
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                                    Achnatherum hymenoides (Roem. & Schult.) Barkworth
                                 | 
                                J. Macoun 205 | 
                                20 Aug 1872 | 
                                Canada | 
                                — | 
                                Saskatchewan Plains. | 
                                — | 
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