Displaying 26 - 75 out of 321 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Solanum triflorum Nutt. | F. V. Hayden s.n. | 1853 - 1854 | United States of America | Nebraska | Fort Union | — |
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| Sedum rhodanthum A.Gray | F. V. Hayden s.n. | 1870 | United States of America | Utah | Uintah Mountains | — |
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| Solanum rostratum Dunal | F. V. Hayden s.n. | 1853-4 | United States of America | Nebraska | Fort Pierre etc. | — |
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| Petrophytum caespitosum (Nutt.) Rydb. | F. V. Hayden s.n. | 07 Sep 1871 | United States of America | — | Between Madison & Jefferson Rivers,… | — |
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| Potentilla biennis Greene | F. V. Hayden s.n. | Jun 1871 | United States of America | Utah | Ogden, Utah Ter. | — |
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| Potentilla pulcherrima Lehm. | F. V. Hayden s.n. | Jul 1871 | United States of America | — | Mt. Ellis to the Yellowstone… | — |
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| Ivesia gordonii (Hook.) Torr. & A.Gray | F. V. Hayden s.n. | Oct 1870 | United States of America | Wyoming | Lincoln Co. Henry's Fork of… | — |
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| Geum rossii var. turbinatum (Rydb.) C.L.Hitchc. | F. V. Hayden s.n. | 25 Sep 1870 | United States of America | Wyoming | Uinta Mountains | — |
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| Cercocarpus ledifolius var. intermontanus N.H.Holmgren | F. V. Hayden s.n. | 03 Jul 1871 | United States of America | — | Stinking Water Creek | — |
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| Chamerion angustifolium (L.) Holub | F. V. Hayden s.n. | 25 Sep 1870 | United States of America | Utah | Uintah Mountains | — |
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| Eremogone congesta (Nutt.) Ikonn. var. congesta | F. V. Hayden s.n. | 1870 | United States of America | Utah | Uintah Mountains. | — |
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| Hackelia patens (Nutt.) I.M.Johnst. var. patens | F. V. Hayden s.n. | Jun 1871 | United States of America | Utah | Weber Co. Salt Lake -… | — |
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| Lappula redowskii (Hornem.) Greene var. redowskii | F. V. Hayden s.n. | 01 Jun 1981 - 07 Jun 1871 | United States of America | Utah | Weber Co. Ogden and vicinity.… | — |
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| Astragalus adsurgens var. robustior Hook. | F. V. Hayden s.n. | 30 May 1853 - 30 May 1854 | United States of America | Nebraska | From Fort Pierre to Bad… | — |
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| Astragalus agrestis Douglas ex G.Don | F. V. Hayden 358 | Jul 1851 | United States of America | Nebraska | Fort Pierre & Fort Union | — |
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| Eragrostis pectinacea (Michx.) Nees | F. V. Hayden s.n. | 1869-60 | United States of America | — | To the Head Waters of… | — |
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| Agastache urticifolia (Benth.) Kuntze var. urticifolia | F. V. Hayden s.n. | 01 Jun 1871 - 07 Jun 1871 | United States of America | Utah | Weber Co. Ogden and vicinity.… | — |
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| Astragalus crassicarpus Nutt. var. crassicarpus | F. V. Hayden s.n. | 28 Jun 1853 | United States of America | Nebraska | Sage Creek | — |
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| Astragalus drummondii Douglas ex Hook. | F. V. Hayden 207 | Sep 1853 - 1854 | United States of America | Nebraska | Fort Union | — |
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| Astragalus flexuosus (Hook.) Douglas ex G.Don var. flexuosus | F. V. Hayden s.n. | 30 Jun 1853 | United States of America | Nebraska | Mauvaises Terres | — |
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| Astragalus gilviflorus E.Sheld. | F. V. Hayden s.n. | May 1853 - 1854 | United States of America | Nebraska | White River Valley | — |
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| Astragalus kentrophyta A.Gray var. kentrophyta | F. V. Hayden s.n. | Jun 1853 - 1854 | United States of America | Nebraska | Yellowstone | — |
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| Astragalus plattensis Nutt. ex Torr. & A.Gray | F. V. Hayden s.n. | 20 Jun 1853 | United States of America | Nebraska | Fort Pierre | — |
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| Dalea enneandra Nutt. | F. V. Hayden | 1853 - 1854 | United States of America | Nebraska | Fort Pierre | — |
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| Astragalus missouriensis Nutt. var. missouriensis | F. V. Hayden s.n. | 12 Jul 1853 | United States of America | Nebraska | Mauvaises Terres | — |
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| Astragalus racemosus Pursh var. racemosus | F. V. Hayden s.n. | 28 Jun 1853 | United States of America | Nebraska | Sage Creek near Bad Lands | — |
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| Astragalus spatulatus E.Sheld. | F. V. Hayden s.n. | May 1871 | United States of America | Wyoming | Laramie Co. Cheyenne, Wyoming Territory | — |
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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 | F. V. Hayden 19 | 07 Jul 1860 | United States of America | — | To the Head Waters of… | — |
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| Alopecurus magellanicus Lam. | F. V. Hayden s.n. | 20 Jun 1860 | — | — | Henry's Fork of Snake River. | — |
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| Andropogon gerardii Vitman | F. V. Hayden 3 | 07 Jul 1853 | United States of America | Nebraska | Fort Berthold | — |
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| Bouteloua curtipendula (Michx.) Torr. | F. V. Hayden s.n. | s.d. | United States of America | Nebraska | Bad Lands. | — |
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| Bouteloua gracilis (Kunth) Lag. ex Griffiths | F. V. Hayden s.n. | 01 Jul 1859 | United States of America | — | Head of Little Missouri near… | — |
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| Bouteloua gracilis (Kunth) Lag. ex Griffiths | F. V. Hayden s.n. | Jul 1859 | United States of America | — | North Fork of Cheyenne River. | — |
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| Bouteloua hirsuta Lag. | F. V. Hayden 47 | 20 Jul 1934 | United States of America | Nebraska | Loup Fork | — |
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| Calamagrostis canadensis (Michx.) P.Beauv. | F. V. Hayden s.n. | Jul 1855 | United States of America | — | Yellowstone. | — |
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| Galium boreale L. | F. V. Hayden s.n. | 1870 | United States of America | Utah | Uinta Mountains, Hayden [?] | — |
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| Oxytropis lagopus Nutt. | F. V. Hayden s.n. | Jun 1871 | United States of America | Idaho | Rocky Mtns. | — |
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| Muhlenbergia mexicana (L.) Trin. | F. V. Hayden 3 | Aug 1859 | United States of America | Nebraska | Head Waters of the Missouri… | — |
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| Muhlenbergia asperifolia (Nees & Meyen) Parodi | F. V. Hayden s.n. | 24 Jul 1871 | United States of America | Wyoming | Hot Sulphur Springs, upper Yellowstone. | — |
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| Muhlenbergia cuspidata (Torr. ex Hook.) Rydb. | F. V. Hayden 3 | 1855 | United States of America | Wyoming | Yellowstone country | — |
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| Muhlenbergia cuspidata (Torr. ex Hook.) Rydb. | F. V. Hayden s.n. | Aug 1855 | United States of America | Wyoming | Yellowstone country | — |
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| Muhlenbergia frondosa (Poir.) Fernald | F. V. Hayden s.n. | Sep 1860 | United States of America | — | The Head Waters of the… | — |
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| Muhlenbergia pungens Thurb. | F. V. Hayden 3 | 06 Aug 1855 | United States of America | Nebraska | Loup Fork of Platte River | — |
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| Muhlenbergia racemosa (Michx.) Britton, Sterns & Poggenb. | F. V. Hayden s.n. | 1855 | United States of America | Nebraska | Ft. Union. | — |
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| Muhlenbergia torreyi (Kunth) Hitchc. ex Bush | F. V. Hayden 5 | 27 Aug 1871 | United States of America | — | Upper Falls of the Yellowstone. | — |
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| Nassella viridula (Trin.) Barkworth | F. V. Hayden s.n. | Jun 1855 | United States of America | Nebraska | Fort Pierre. | — |
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| Phalaris arundinacea L. | F. V. Hayden s.n. | Aug 1859 | United States of America | — | Big Horn Mountains [Wyoming/Montana]. | — |
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| Phalaris arundinacea L. | F. V. Hayden s.n. | 03 Jul 1871 | United States of America | — | Stinking Water Creek, Montana Ter. | — |
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| Phleum alpinum L. | F. V. Hayden s.n. | 11 Jul 1860 | United States of America | — | Smith's Fork. Head Waters of… | — |
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