Displaying 251 - 321 out of 321 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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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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| Calamovilfa longifolia (Hook.) Hack. ex Scribn. & Southw. | F. V. Hayden 3 | Jul 1853 | United States of America | Nebraska | — |
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| Calamovilfa longifolia (Hook.) Hack. ex Scribn. & Southw. | F. V. Hayden 3 | Jul 1853 | United States of America | Nebraska | — |
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| Bromus kalmii A.Gray | F. V. Hayden s.n. | 1853-4 | United States of America | Nebraska | — |
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| Mahonia repens (Lindl.) G.Don | F. V. Hayden s.n. | 1872 | United States of America | Colorado | — |
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| Poa alpina L. | F. V. Hayden 260 & 589 | 1873 | United States of America | Colorado | — |
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| Sporobolus airoides (Torr.) Torr. | F. V. Hayden s.n. | 1853 - 1854 | United States of America | Nebraska | — |
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| Artemisia frigida Willd. | 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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| Eragrostis cilianensis (All.) Vignolo ex Janch. | F. V. Hayden 71 | Apr 1853 | United States of America | Nebraska | — |
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| Eragrostis hypnoides (Lam.) Britton, Sterns & Poggenb. | F. V. Hayden 73 | 1853-4 | United States of America | Nebraska | — |
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| Eragrostis pectinacea (Michx.) Nees | F. V. Hayden 72 | 1853-4 | United States of America | Nebraska | — |
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| Bouteloua curtipendula (Michx.) Torr. | F. V. Hayden s.n. | 1853-4 | United States of America | Nebraska | — |
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| Bouteloua dactyloides (Nutt.) Columbus | F. V. Hayden s.n. | 1853-4 | United States of America | Nebraska | — |
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| Trisetum spicatum (L.) K.Richt. | F. V. Hayden 580 | 1873 | United States of America | Colorado | — |
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| Solidago rigida var. humilis Porter | F. V. Hayden s.n. | — | United States of America | Colorado | — |
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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 douglasii var. minor Olney | F. V. Hayden s.n. | s.d. | United States of America | Nebraska | probable syntype |
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| Pinus albicaulis Engelm. | F. V. Hayden s.n. | 1873 | United States of America | Montana | — |
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| Festuca idahoensis Elmer | F. V. Hayden 295 | 1873 | United States of America | Colorado | — |
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| Chamaerhodos erecta (L.) Bunge | F. V. Hayden s.n. | s.d. | United States of America | Colorado | — |
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| Potentilla hippiana Lehm. | F. V. Hayden s.n. | Jun 1853 - 1854 | United States of America | Nebraska | — |
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| Hordeum pusillum Nutt. | F. V. Hayden 2 | s.d. | United States of America | Nebraska | — |
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| Digitaria ciliaris (Retz.) Koeler | F. V. Hayden 3 | Jul 1853 | United States of America | Nebraska | — |
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| Monarda pectinata Nutt. | F. V. Hayden s.n. | 1858? | United States of America | Nebraska | — |
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| Iva axillaris Pursh | F. V. Hayden s.n. | s.d. | United States of America | Nebraska | — |
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| Piptatherum racemosum (Sm.) Eaton | F. V. Hayden 20 | 1853 - 1854 | United States of America | Nebraska | — |
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| Elodea canadensis Michx. | F. V. Hayden s.n. | s.d. | United States of America | Nebraska | — |
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| Glaux maritima var. maritima | F. V. Hayden s.n. | s.d. | United States of America | Nebraska | — |
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| Gentiana affinis Griseb. | F. V. Hayden s.n. | s.d. | United States of America | Nebraska | — |
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| Artemisia frigida Willd. | F. V. Hayden s.n. | s.d. | United States of America | Nebraska | — |
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| Sphaeralcea coccinea (Nutt.) Rydb. | F. V. Hayden s.n. | s.d. | United States of America | Nebraska | — |
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| Lathyrus polymorphus Nutt. subsp. polymorphus | F. V. Hayden s.n. | s.d. | United States of America | Nebraska | — |
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| Chrysothamnus nauseosus (Pall.) Britton subsp. nauseosus | F. V. Hayden s.n. | s.d. | United States of America | Nebraska | — |
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| Bromus latiglumis (Shear) Hitchc. | F. V. Hayden 99 | 1853 - 1854 | United States of America | Nebraska | — |
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| Sphaeralcea coccinea (Nutt.) Rydb. | F. V. Hayden s.n. | 1853 - 1854 | United States of America | Nebraska | — |
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| Eriogonum cernuum Nutt. var. cernuum | F. V. Hayden s.n. | 1858 | United States of America | Nebraska | — |
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| Allium textile A.Nelson & J.F.Macbr. | F. V. Hayden s.n. | s.d. | United States of America | Nebraska | — |
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| Paronychia depressa (Torr. & A.Gray) Nutt. ex A.Nelson | F. V. Hayden s.n. | 1858 | United States of America | Nebraska | — |
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| Symphyotrichum ericoides (L.) G.L.Nesom | F. V. Hayden s.n. | 1853 - 1854 | United States of America | Nebraska | — |
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| Artemisia ludoviciana subsp. mexicana (Willd. ex Spreng.) D.D.Keck | F. V. Hayden s.n. | 13 Jul 1853 | United States of America | Nebraska | — |
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| Pediomelum argophyllum (Pursh) J.W.Grimes | F. V. Hayden s.n. | 1853 - 1854 | United States of America | Nebraska | — |
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| Lactuca ludoviciana (Nutt.) Riddell | F. V. Hayden s.n. | 02 Jul 1853 | United States of America | Nebraska | — |
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| Iris missouriensis Nutt. | F. V. Hayden s.n. | Aug 1870 - Sep 1870 | United States of America | — | Rocky Mtns. | — |
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| Eriogonum cernuum Nutt. var. cernuum | F. V. Hayden s.n. | Aug 1870 - Sep 1870 | United States of America | Wyoming | Wyoming Ter. | — |
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| Philonotis fontana (Hedw.) Brid. var. fontana | F. V. Hayden | — | United States of America | Colorado | — | |||||
| Sporobolus indicus (L.) R.Br. | F. V. Hayden s.n. | s.d. | United States of America | South Carolina | Beaufort Co. | — |
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| Solidago rigida var. humilis Porter | F. V. Hayden s.n. | 30 Jul 1853 | United States of America | Nebraska | Sarpy Co. Bellevue. | — |
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