Displaying 1 - 75 out of 2994 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Mentzelia nuda (Pursh) Torr. & A.Gray | R. C. Rollins 35 | 31 Jul 1931 | United States of America | Wyoming | Niobrara Co. Roadside 15 miles… | — |
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| Liatris punctata Hook. var. punctata | R. C. Rollins 36 | 03 Aug 1931 | United States of America | Wyoming | Niobrara Co. Near Kirtly | — |
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| Chrysothamnus parryi subsp. howardii (Parry ex A.Gray) H.M.Hall & Clem. | R. C. Rollins 50 | Oct 1931 | United States of America | Wyoming | Albany Co. Eastern slope of… | — |
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| Chrysothamnus parryi subsp. howardii (Parry ex A.Gray) H.M.Hall & Clem. | R. C. Rollins 50 | Oct 1931 | United States of America | Wyoming | Albany Co. Eastern slope of… | — |
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| Ericameria resinosa Nutt. | R. C. Rollins 72-238 | 21 Oct 1972 | United States of America | Idaho | Adams Co. Snake River below… | — |
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| Halimolobos virgata (Nutt.) O.E.Schulz | R. C. Rollins 178 | 30 May 1938 | United States of America | Idaho | Butte Co. Big Creek. | — |
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| Halimolobos virgata (Nutt.) O.E.Schulz | R. C. Rollins 178 | 30 May 1938 | United States of America | Idaho | Butte Co. Big Creek. | — |
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| Sphaeralcea coccinea (Nutt.) Rydb. | R. C. Rollins 179 | 15 Jun 1932 | United States of America | Wyoming | Uinta Co. Rocky knoll north… | — |
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| Ipomopsis aggregata (Pursh) V.E.Grant var. aggregata | R. C. Rollins 225 | 24 Jun 1932 | United States of America | Wyoming | Lincoln Co. Swift Creek Canyon,… | — |
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| Penstemon radicosus A.Nelson | R. C. Rollins 231 | 23 Jun 1932 | United States of America | Wyoming | Lincoln Co. Near Cokeville. | — |
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| Phacelia sericea var. ciliosa Rydb. | R. C. Rollins 236 | 24 Jun 1936 | United States of America | Wyoming | Lincoln Co. Swift Creek Canyon,… | — |
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| Penstemon subglaber Rydb. | R. C. Rollins 242 | 24 Jun 1932 | United States of America | Wyoming | Lincoln Co. In the "Narrows",… | — |
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| Arabis divaricarpa A.Nelson | R. C. Rollins 340 | 19 Jun 1938 | United States of America | Idaho | Clark Co. Frazier Dam. | — |
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| Ranunculus glaberrimus var. ellipticus (Greene) Greene | R. C. Rollins 403 | 18 Apr 1934 | United States of America | Wyoming | Sheridan Co. Hillside near Story,… | — |
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| Mertensia oreophila L.O.Williams | R. C. Rollins 404 | 18 Apr 1934 | United States of America | Wyoming | Johnson Co. Near Buffalo. | — |
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| Townsendia hookeri Beaman | R. C. Rollins 408 | 18 Apr 1934 | United States of America | Wyoming | Johnson Co. W of Buffalo | — |
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| Anemone patens var. multifida Pritz. | R. C. Rollins 409 | 19 Apr 1934 | United States of America | Wyoming | Sheridan Co. Near Story, Big… | — |
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| Claytonia lanceolata Pursh | R. C. Rollins 410 | 19 Apr 1934 | United States of America | Wyoming | Sheridan Co. Rocky Mountain Region.… | — |
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| Leucocrinum montanum Nutt. ex A.Gray | R. C. Rollins 412 | 23 Apr 1934 | United States of America | Wyoming | Johnson Co. Hillsides east of… | — |
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| Thermopsis rhombifolia (Nutt. ex Pursh) Richardson | R. C. Rollins 413 | 27 Apr 1934 | United States of America | Wyoming | Johnson Co. 6 mi W… | — |
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| Astragalus gilviflorus E.Sheld. | R. C. Rollins 415 | 01 May 1934 | United States of America | Wyoming | Johnson Co. Northwest of Buffalo | — |
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| Lathyrus polymorphus subsp. incanus (J.G.Sm. & Rydb.) C.L.Hitchc. | R. C. Rollins 418 | 05 May 1934 | United States of America | Wyoming | Converse Co. Dry roadside 4… | — |
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| Delphinium bicolor Nutt. | R. C. Rollins 425 | 08 May 1934 | United States of America | Wyoming | Sheridan Co. Big Horn Mountains,… | — |
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| Viola canadensis L. | R. C. Rollins 426 | 08 May 1934 | United States of America | Wyoming | Sheridan Co. Near Story, Big… | — |
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| Arnica cordifolia Hook. | R. C. Rollins 427 | 08 May 1934 | United States of America | Wyoming | Sheridan Co. Big Horn Mountains… | — |
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| Erythronium grandiflorum var. grandiflorum | R. C. Rollins 428 | 08 May 1934 | United States of America | Wyoming | Sheridan Co. Near Story, Big… | — |
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| Allium textile A.Nelson & J.F.Macbr. | R. C. Rollins 429 | 15 May 1934 | United States of America | Wyoming | Sheridan Co. Near the Tongue… | — |
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| Castilleja sessiliflora Pursh | R. C. Rollins 432 | 15 May 1934 | United States of America | Wyoming | Sheridan Co. Near the Tongue… | — |
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| Cryptantha celosioides (Eastw.) Payson | R. C. Rollins 433 | 15 May 1934 | United States of America | Wyoming | Sheridan Co. Near the Tongue… | — |
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| Rosa woodsii var. ultramontana (S.Watson) Jeps. | R. C. Rollins 435 | 18 May 1934 | United States of America | Wyoming | Sheridan Co. Upper Big Goose… | — |
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| Cornus stolonifera Michx. | R. C. Rollins 437 | 18 May 1934 | United States of America | Wyoming | Sheridan Co. Along Big Goose… | — |
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| Phacelia linearis (Pursh) Holz. | R. C. Rollins 438 | 18 May 1934 | United States of America | Wyoming | Sheridan Co. Near Big Goose… | — |
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| Erigeron ochroleucus Nutt. var. ochroleucus | R. C. Rollins 439 | 21 May 1934 | United States of America | Wyoming | Sheridan Co. eastern base of… | — |
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| Penstemon eriantherus Pursh | R. C. Rollins 440 | 21 May 1935 | United States of America | Wyoming | Sheridan Co. Hillside at the… | — |
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| Arenaria lithophila (Rydb.) Rydb. | R. C. Rollins 441 | 21 May 1934 | United States of America | Wyoming | Sheridan Co. At the mouth… | — |
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| Physaria curvipes (A.Nelson) Grady & O'Kane | R. C. Rollins 443 | 21 May 1934 | United States of America | Wyoming | Sheridan Co. At the mouth… | — |
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| Erigeron pumilus Nutt. subsp. pumilus | R. C. Rollins 450 | 23 May 1934 | United States of America | Montana | Rosebud Co. open plains near… | — |
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| Caltha leptosepala DC. | R. C. Rollins 454 | 25 May 1934 | United States of America | Wyoming | Sheridan Co. Bih Horn Mountains,… | — |
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| Viola palustris var. palustris | R. C. Rollins 455 | 25 May 1934 | United States of America | Wyoming | Sheridan Co. Rocky Mountains. Big… | — |
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| Viola adunca f. glabra (Brainerd) G.N.Jones | R. C. Rollins 456 | 25 May 1934 | United States of America | Wyoming | Sheridan Co. Big Horn Mountains,… | — |
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| Phacelia linearis (Pursh) Holz. | R. C. Rollins 474 | 25 May 1934 | United States of America | Wyoming | Sheridan Co. Big Horn Mountains,… | — |
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| Clematis hirsutissima Pursh | R. C. Rollins 475 | 25 May 1934 | United States of America | Wyoming | Sheridan Co. Big Horn Mountains,… | — |
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| Penstemon glaber Pursh var. glaber | R. C. Rollins 477 | 25 May 1934 | United States of America | Wyoming | Sheridan Co. Dry east face… | — |
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| Mertensia viridis (A.Nelson) A.Nelson | R. C. Rollins 478 | 26 May 1934 | United States of America | Wyoming | Sheridan Co. Up the Red… | — |
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| Antennaria umbrinella Rydb. | R. C. Rollins 487 | 04 Jun 1934 | United States of America | Wyoming | Johnson Co. Big Horn Mountains… | — |
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| Cercocarpus ledifolius Nutt. var. ledifolius | R. C. Rollins 490 | 04 Jun 1934 | United States of America | Wyoming | Washakie Co. Western slope of… | — |
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| Viola canadensis L. | R. C. Rollins 500 | 09 Jun 1934 | United States of America | Wyoming | Sheridan Co. Near the top… | — |
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| Geranium viscosissimum var. nervosum (Rydb.) C.L.Hitchc. | R. C. Rollins 501 | 09 Jun 1934 | United States of America | Wyoming | Sheridan Co. On the Red… | — |
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| Castilleja sulphurea Rydb. | R. C. Rollins 505 | 09 Jun 1934 | United States of America | Wyoming | Sheridan Co. At the top… | — |
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| Lesquerella stonensis Rollins | R. C. Rollins 508 | 01 Apr 1955 | United States of America | Tennessee | Rutherford Co. Near East Fork… | — |
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| Potentilla fruticosa L. | R. C. Rollins 508 | 09 Jun 1934 | United States of America | Wyoming | Sheridan Co. At the top… | — |
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| Anticlea elegans (Pursh) Rydb. | R. C. Rollins 510 | 09 Jun 1934 | United States of America | Wyoming | Sheridan Co. At the top… | — |
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| Campanula rotundifolia L. | R. C. Rollins 514 | 12 Jun 1934 | United States of America | Wyoming | Sheridan Co. Near Beaver Creek.… | — |
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| Platanthera aquilonis Sheviak | R. C. Rollins 545 | 17 Jun 1934 | United States of America | Wyoming | Sheridan Co. Piney Creek above… | — |
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| Allium brevistylum S.Watson | R. C. Rollins 546 | 17 Jun 1934 | United States of America | Wyoming | Sheridan Co. Near Piney Creek,… | — |
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| Penstemon procerus Graham var. procerus | R. C. Rollins 548 | 17 Jun 1934 | United States of America | Wyoming | Sheridan Co. Near Piney Creek,… | — |
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| Apocynum androsaemifolium L. | R. C. Rollins 549 | 17 Jun 1934 | United States of America | Wyoming | Sheridan Co. Rocky area near… | — |
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| Amelanchier alnifolia (Nutt.) Nutt. ex M.Roem. | R. C. Rollins 550 | 20 Jun 1934 | United States of America | Wyoming | Sheridan Co. Upper Prairie Dog… | — |
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| Galium boreale L. | R. C. Rollins 551 | 17 Jun 1934 | United States of America | Wyoming | Sheridan Co. Above Story, Big… | — |
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| Anticlea elegans (Pursh) Rydb. | R. C. Rollins 553 | 17 Jul 1934 | United States of America | Wyoming | Sheridan Co. Foothills above Story,… | — |
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| Ratibida columnifera (Nutt.) Wooton & Standl. | R. C. Rollins 557 | 23 Jun 1934 | United States of America | Wyoming | Sheridan Co. Hillsides east of… | — |
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| Toxicodendron rydbergii (Small ex Rydb.) Greene | R. C. Rollins 558 | 23 Jun 1934 | United States of America | Wyoming | Sheridan Co. Sheridan, hillside east | — |
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| Eriogonum pauciflorum var. pauciflorum | R. C. Rollins 559 | 23 Jun 1934 | United States of America | Wyoming | Sheridan Co. East of Sheridan. | — |
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| Dalea purpurea Vent. var. purpurea | R. C. Rollins 560 | 23 Jun 1934 | United States of America | Wyoming | Sheridan Co. Dry hillside east… | — |
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| Symphoricarpos occidentalis Hook. | R. C. Rollins 561 | 28 Jun 1934 | United States of America | Wyoming | Sheridan Co. Along the Tongue… | — |
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| Viola vallicola A.Nelson | R. C. Rollins 568 | 18 Apr 1934 | United States of America | Wyoming | Johnson Co. On upper Johnson… | — |
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| Gaillardia aristata Pursh | R. C. Rollins 584 | 07 Jul 1934 | United States of America | Wyoming | Sheridan Co. Big Horn Mountains,… | — |
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| Boykinia jamesii var. heucheriformis (Rydb.) Engl. | R. C. Rollins 587 | 07 Jul 1934 | United States of America | Wyoming | Sheridan Co. Big Horn Mountains,… | — |
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| Castilleja linariifolia Benth. | R. C. Rollins 588 | 07 Jul 1934 | United States of America | Wyoming | Sheridan Co. Hillside near the… | — |
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| Heterotheca hispida G.L.Nesom | R. C. Rollins 633 | 13 Jul 1934 | United States of America | Wyoming | Sheridan Co. Above Story, Big… | — |
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| Anaphalis margaritacea (L.) Benth. & Hook.f. | R. C. Rollins 635 | 13 Jul 1934 | United States of America | Wyoming | Sheridan Co. Near Piney Creek… | — |
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| Acer glabrum Torr. | R. C. Rollins 709 | 06 Aug 1934 | United States of America | Wyoming | Johnson Co. | — |
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| Viburnum lentago L. | R. C. Rollins 710 | 08 Aug 1934 | United States of America | Wyoming | Johnson Co. Piney Creek near… | — |
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| Liatris punctata Hook. var. punctata | R. C. Rollins 712 | 01 Aug 1934 | United States of America | Wyoming | Johnson Co. Near Rock Creek | — |
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| Crataegus sheridana A.Nelson | R. C. Rollins 764 | 17 Aug 1934 | United States of America | Wyoming | Fremont Co. along the North… | — |
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