Displaying 251 - 275 out of 319 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Tetradymia canescens DC. | F. V. Hayden s.n. | 1868 | United States of America | Colorado | Larimer Co. | — |
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| Tetradymia spinosa Hook. & Arn. var. spinosa | F. V. Hayden s.n. | Oct 1870 | United States of America | Wyoming | Henry's Fork of Green River,… | — |
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| Townsendia parryi D.C. Eaton | F. V. Hayden s.n. | 1871 | United States of America | Idaho | Rocky Mtns. of Idaho. | — |
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| Eriogonum alatum Torr. var. alatum | F. V. Hayden s.n. | 10 Feb 1905 | United States of America | Colorado | South Park | — |
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| Eriogonum alatum Torr. var. alatum | F. V. Hayden s.n. | 10 Feb 1905 | United States of America | Colorado | North[?] Park | — |
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| Scutellaria racemosa Pers. | F. V. Hayden s.n. | Jun 1871 | United States of America | Utah | Utah Territory. | — |
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| Packera multilobata (Torr. & A.Gray) W.A.Weber & Á.Löve | F. V. Hayden s.n. | Jun 1871 | United States of America | Utah | Ogden, Utah Territory. | — |
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| Iliamna rivularis (Douglas ex Hook.) Greene | F. V. Hayden | 15 Jul 1871-20 Jul 1871 | United States of America | Montana | Fort Ulis to the Yellowstone,… | — |
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| Astragalus vexilliflexus E.Sheld. var. vexilliflexus | F. V. Hayden s.n. | 15 Jul 1871 - 20 Jul 1871 | United States of America | Montana | Ft. Ellis to the Yellowstone | — |
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| Carex nebrascensis Dewey | F. V. Hayden s.n. | — | United States of America | Nebraska | isotype |
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| Carex douglasii var. minor Olney | F. V. Hayden s.n. | s.d. | United States of America | Nebraska | probable syntype |
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| Carex laeviconica Dewey | F. V. Hayden s.n. | — | United States of America | Nebraska | possible type |
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| Vicia americana var. linearis (Nutt. ex Torr. & A.Gray) S.Watson | F. V. Hayden s.n. | Jul 1853 | United States of America | Nebraska | — |
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| Astragalus pectinatus Douglas ex G.Don | F. V. Hayden | 1853 - 1854 | United States of America | Nebraska | — |
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| Sphenopholis obtusata (Michx.) Scribn. | F. V. Hayden s.n. | 1853 - 1854 | United States of America | Nebraska | — |
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| Selaginella haydeni Hieron. | F. V. Hayden s.n. | 1858 | United States of America | Nebraska | possible isotype |
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| Erysimum asperum (Nutt.) DC. | F. V. Hayden s.n. | s.d. | United States of America | Colorado | — |
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| Astragalus multiflorus (Pursh) A.Gray | F. V. Hayden s.n. | s.d. | United States of America | Nebraska | — |
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| Bahia oppositifolia (Nutt.) DC. | F. V. Hayden s.n. | s.d. | United States of America | Nebraska | — |
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| Lonicera involucrata (Richardson) Banks ex Spreng. | F. V. Hayden s.n. | May 1871 - Jun 1871 | United States of America | Utah | — |
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| Poa palustris L. | F. V. Hayden s.n. | 1853 - 1854 | United States of America | Nebraska | — |
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| Amaranthus blitoides S.Watson | F. V. Hayden s.n. | 1858 | United States of America | Nebraska | — |
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| Solanum triflorum Nutt. | F. V. Hayden s.n. | 1858 | United States of America | Nebraska | — |
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| Bouteloua gracilis (Kunth) Lag. ex Griffiths | F. V. Hayden s.n. | 1855 | United States of America | Nebraska | — |
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| Calamagrostis canadensis (Michx.) P.Beauv. | F. V. Hayden s.n. | 1853-4 | United States of America | Nebraska | — |
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