Displaying 1 - 50 out of 321 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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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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| Euphorbia petaloidea var. nicolletii Engelm. | F. V. Hayden | 1853-1854 | United States of America | Nebraska | Yellowstone Country | holotype |
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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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| Drepanocladus aduncus (Hedw.) Warnst. | F. V. Hayden | 10 Jul 1855 | United States of America | — | Fort Clark on Upper Missouri. | — | ||||
| 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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| Penstemon glaber Pursh var. glaber | F. V. Hayden 3 | Jul 1854 | United States of America | Nebraska | Fort Clark | — |
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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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| 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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