Displaying 1 - 75 out of 321 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Aristida purpurea var. longiseta (Steud.) Vasey | F. V. Hayden 2 | 1853 - 1854 | United States of America | Nebraska | Ft. Pierre | — |
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| Koeleria pyramidata (Lam.) P.Beauv. | F. V. Hayden 2 | s.d. | United States of America | Nebraska | Ft. Pierre | — |
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| Hordeum pusillum Nutt. | F. V. Hayden 2 | s.d. | United States of America | Nebraska | — |
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| Penstemon glaber Pursh var. glaber | F. V. Hayden 3 | Jul 1854 | United States of America | Nebraska | Fort Clark | — |
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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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| 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 cuspidata (Torr. ex Hook.) Rydb. | F. V. Hayden 3 | 1855 | United States of America | Wyoming | Yellowstone country | — |
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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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| Aristida purpurea var. longiseta (Steud.) Vasey | F. V. Hayden 3 | 07 Jun 1855 | United States of America | Nebraska | Ft. Pierre | — |
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| Beckmannia syzigachne (Steud.) Fernald | F. V. Hayden 3 | 1855 | United States of America | Nebraska | Above Ft. Pierre | — |
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| Hesperostipa spartea (Trin.) Barkworth | F. V. Hayden 3 | 15 Jun 1855 | United States of America | Nebraska | From Council Bluffs to L'Eau… | — |
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| Hesperostipa spartea (Trin.) Barkworth | F. V. Hayden 3 | 08 Jul 1855 | United States of America | Nebraska | Bad Lands | — |
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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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| Digitaria ciliaris (Retz.) Koeler | F. V. Hayden 3 | Jul 1853 | United States of America | Nebraska | — |
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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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| Potentilla arguta Pursh | F. V. Hayden 5 | 06 Jul 1853 - 06 Jul 1855 | United States of America | Nebraska | Long Lake near Fort Clark | — |
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| Potentilla strigosa (Pursh) Pall. ex Tratt. | F. V. Hayden 6 | 1853 - 1854 | United States of America | Nebraska | Badlands | — |
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| Poa alsodes A.Gray | F. V. Hayden 7 | Aug 1871 | United States of America | — | Yellowstone Lakes. | — |
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| Crataegus mollis (Torr. & A.Gray) Scheele | F. V. Hayden 7 | 1853 - 1854 | United States of America | Nebraska | Mouth of the Big Sioux | — |
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| Hymenopappus tenuifolius Pursh | F. V. Hayden 8 | May 1855 | United States of America | Nebraska | Valley of White river | — |
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| Digitaria pauciflora Hitchc. | F. V. Hayden 10 | Jul 1853 | United States of America | Nebraska | Bellevue | — |
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| Artemisia frigida Willd. | F. V. Hayden 11 | Jul 1854 | United States of America | Nebraska | Yellowstone. | — |
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| Cenchrus latifolius (Spreng.) Morrone | F. V. Hayden 18 | Jul 1853 | United States of America | Nebraska | Below Fort Pierre | — |
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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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| Piptatherum racemosum (Sm.) Eaton | F. V. Hayden 20 | 1853 - 1854 | United States of America | Nebraska | — |
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| Fragaria vesca var. americana Porter | F. V. Hayden 36 | 1854 | United States of America | Nebraska | Woody ravines about Fort Pierre | — |
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| Phragmites australis (Cav.) Trin. ex Steud. | F. V. Hayden 39 | Aug 1856 | United States of America | — | Milk River of the Missouri. | — |
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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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| Eragrostis cilianensis (All.) Vignolo ex Janch. | F. V. Hayden 71 | Apr 1853 | 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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| Eragrostis hypnoides (Lam.) Britton, Sterns & Poggenb. | F. V. Hayden 73 | 1853-4 | United States of America | Nebraska | — |
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| Dichanthelium oligosanthes (Schult.) Gould | F. V. Hayden 74 | 23 Jul 1853 - 23 Jul 1854 | United States of America | Nebraska | Loup Fork | — |
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| Festuca subverticillata (Pers.) E.B.Alexeev | F. V. Hayden 92 | Jun 1859 | United States of America | — | From Niobrarah River to Fort… | — |
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| Festuca subverticillata (Pers.) E.B.Alexeev | F. V. Hayden 92 | Jul 1853 - Jul 1854 | United States of America | Nebraska | Fort Pierre | — |
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| Bromus latiglumis (Shear) Hitchc. | F. V. Hayden 99 | 1853 - 1854 | United States of America | Nebraska | — |
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| Elymus canadensis L. | F. V. Hayden 103 | 01 Jul 1853 | United States of America | Nebraska | Badlands | — |
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| Poa fendleriana (Steud.) Vasey | F. V. Hayden 114 | 1873 | United States of America | Colorado | Apline. | — |
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| Poa alpina L. | F. V. Hayden 184 | 1873 | United States of America | Colorado | South Park. | — |
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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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| Oxytropis lambertii var. lambertii | F. V. Hayden 210 | Jun 1854 | United States of America | Nebraska | L'eau qui court River | — |
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| Euphorbia marginata Pursh | F. V. Hayden 227 | 21 Jun 1853 | United States of America | Nebraska | Fort Pierre | — |
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| Rosa woodsii Lindl. var. woodsii | F. V. Hayden 254 | 1854 | United States of America | Nebraska | Bottoms of Missouri and mouth… | — |
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| Poa alpina L. | F. V. Hayden 260 & 589 | 1873 | United States of America | Colorado | — |
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| Poa secunda J.Presl | F. V. Hayden 286 | 1873 | United States of America | Colorado | South Park. | — |
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| Festuca idahoensis Elmer | F. V. Hayden 295 | 1873 | United States of America | Colorado | — |
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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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| Trisetum spicatum (L.) K.Richt. | F. V. Hayden 580 | 1873 | United States of America | Colorado | — |
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| Poa reflexa Vasey & Scribn. | F. V. Hayden 602 | 1873 | United States of America | Colorado | Twin Lakes. | — |
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| Trisetum spicatum (L.) K.Richt. | F. V. Hayden 669 | 1873 | United States of America | Colorado | Lake Co. | — |
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| Deschampsia cespitosa (L.) P.Beauv. | F. V. Hayden 725 | 1873 | United States of America | Colorado | Lake Co. | — |
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| Deschampsia cespitosa (L.) P.Beauv. | F. V. Hayden 740 | 1873 | United States of America | Colorado | Lake Co. | — |
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| Clematis hirsutissima Pursh | F. V. Hayden 3301 | Jun 1870 | United States of America | Idaho | Rocky Mts. | — |
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| Astragalus convallarius Greene var. convallarius | F. V. Hayden s.n. | Jun 1871 | United States of America | Utah | Weber Co. Ogden, Utah T. | — |
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| Draba albertina Greene | F. V. Hayden s.n. | 1870 | United States of America | Utah | Uintah Co. Uintah Mountains | — |
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| Trifolium haydenii Porter | F. V. Hayden s.n. | 25 Jun 1871-30 Jun 1871 | United States of America | Montana | M.T. [=Montana Territory] Rocky Mountains,… | isolectotype |
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| Heuchera rubescens Torr. | F. V. Hayden s.n. | Jun 1871 | United States of America | Utah | Ogden, Utah Territory | — |
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| Linum kingii var. sedoides Porter | F. V. Hayden s.n. | 1870 | United States of America | Utah | Uintah Mtns. | isotype |
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| Minuartia rubella (Wahlenb.) Hiern | F. V. Hayden s.n. | 1870 | United States of America | — | Uintah Mountains | — |
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| Minuartia rubella (Wahlenb.) Hiern | F. V. Hayden s.n. | 25 Sep 1870 | United States of America | Wyoming | Uinta Mountains | — |
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| Silene menziesii Hook. | F. V. Hayden s.n. | June 1871 | United States of America | Idaho | Rocky Mountains | — |
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| Penstemon eriantherus var. redactus Pennell & D.D.Keck | F. V. Hayden s.n. | 1871 | United States of America | Montana | Stinking Water Creek | — |
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| Penstemon eriantherus var. redactus Pennell & D.D.Keck | F. V. Hayden s.n. | 03 Jul 1871 | United States of America | Montana | Stinking Water Creek | — |
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| Penstemon procerus Graham var. procerus | F. V. Hayden s.n. | Jul 1872-Aug 1872 | United States of America | — | Yellowstone Lake | — |
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| Penstemon fruticosus (Pursh) Greene var. fruticosus | F. V. Hayden s.n. | Jul 1871-Aug 1871 | United States of America | Wyoming | Yellowstone Lake | — |
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| Penstemon angustifolius Nutt. ex Pursh var. angustifolius | F. V. Hayden s.n. | 1853-1854 | United States of America | Nebraska | Eaglenest Butte | — |
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| Penstemon angustifolius Nutt. ex Pursh var. angustifolius | F. V. Hayden s.n. | 25 May 1871-30 May 1871 | United States of America | Wyoming | Cheyenne | — |
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| Penstemon albidus Nutt. | F. V. Hayden s.n. | 21 Jul 1853 | United States of America | Nebraska | Fort Pierre | — |
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| Bistorta bistortoides (Pursh) Small | F. V. Hayden s.n. | 24 Jul 1871 | United States of America | — | Hot Sulphur Springs, Upper Yellowstone | — |
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| Ephedra viridis Coville | F. V. Hayden s.n. | Oct 1870 | United States of America | Wyoming | Henry's Fork, Wyoming Territory | — |
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| Penstemon digitalis Nutt. ex Sims | F. V. Hayden s.n. | 1853-1854 | United States of America | Nebraska | Fort Leavenworth | — |
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| Carex hallii Olney | F. V. Hayden s.n. | Jun 1871 | United States of America | Idaho | Rocky Mountains. | lectotype | ||||
| Hedysarum boreale Nutt. var. boreale | F. V. Hayden s.n. | Jun 1871 | United States of America | Utah | Utah Territory. | — |
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| Lupinus pusillus var. intermontanus (A.Heller) C.P.Sm. | F. V. Hayden s.n. | Jun 1871 | United States of America | Utah | Ogden, Utah T. | — |
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| Sedum lanceolatum Torr. | F. V. Hayden s.n. | 25 Sep 1870 | United States of America | Utah | Uinta Mountains | — |
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