Displaying 2751 - 2825 out of 2994 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Taraxacum ammophilum Greene | R. C. Rollins 923 | 01 Jul 1935 | United States of America | Wyoming | Albany Co. Moist meadow on… | — |
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| Hymenoxys acaulis (Pursh) K.F.Parker | R. C. Rollins 1810 | 04 Jul 1937 | United States of America | Colorado | Las Animas Co. 2 miles… | — |
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| Hymenoxys acaulis var. pygmaea | R. C. Rollins 960 | 03 Jul 1935 | United States of America | Wyoming | Albany Co. Rocky flats 4… | — |
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| Tetradymia canescens DC. | R. C. Rollins 2872 | 22 Jul 1939 | United States of America | Wyoming | Uinta Co. 3.5 miles east… | — |
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| Tetradymia canescens DC. | R. C. Rollins 1964 | 26 Aug 1937 | United States of America | Colorado | Delta Co. rocky hillside near… | — |
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| Hymenoxys grandiflora (Torr. & A.Gray) K.L.Parker | R. C. Rollins 1353 | 10 Jul 1936 | United States of America | Colorado | Lake Co. Dry hillside 1… | — |
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| Hymenoxys richardsonii var. floribunda (A.Gray) K.L.Parker | R. C. Rollins 1528 | 15 Aug 1936 | United States of America | Colorado | La Plata Co. 8 miles… | — |
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| Agastache pallidiflora subsp. pallidiflora var. greenei | R. C. Rollins 1521 | 13 Aug 1936 | United States of America | Colorado | San Juan Co. Rocky cliffs… | — |
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| Agastache urticifolia (Benth.) Kuntze var. urticifolia | R. C. Rollins 1458 | 27 Jul 1936 | United States of America | Colorado | Gunnison Co. near main hiway,… | — |
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| Hedeoma drummondii Benth. | R. C. Rollins 1872 | 21 Jul 1937 | United States of America | Colorado | Otero Co. 15 miles south… | — |
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| Thelesperma megapotamicum (Spreng.) Kuntze | R. C. Rollins 1811 | 04 Jul 1937 | United States of America | Colorado | Las Animas Co. 2 miles… | — |
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| Hedeoma nana (Torr.) Briq. | R. C. Rollins 5393 | 12 Apr 1953 | United States of America | Texas | Guadalupe Co. Near Cibolo Creek,… | — |
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| Townsendia florifer (Hook.) A.Gray | R. C. Rollins 1152 | 10 Jun 1936 | United States of America | Idaho | Elmore Co. 14 miles northwest… | — |
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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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| Townsendia hookeri Beaman | R. C. Rollins 1619 | 10 Jun 1937 | United States of America | Wyoming | Uinta Co. Near Lyman | — |
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| Townsendia incana Nutt. | R. C. Rollins 1705 | 15 Jun 1937 | United States of America | Wyoming | Uinta Co. Dry eastern slope… | — |
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| Townsendia rothrockii A.Gray | R. C. Rollins 51152 | 16 Jul 1951 | United States of America | Colorado | San Juan Co. Southwest slope… | — |
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| Townsendia strigosa Nutt. | R. C. Rollins 1662 | 10 Jun 1937 | United States of America | Wyoming | Uinta Co. Near Blacks Fork… | — |
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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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| 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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| Machaeranthera bigelovii (A.Gray) Greene | R. C. Rollins 1505 | 08 Aug 1936 | United States of America | Colorado | Hinsdale Co. Open hillside near… | — |
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| Machaeranthera canescens (Pursh) A.Gray var. canescens | R. C. Rollins 1922 | 12 Aug 1937 | United States of America | Colorado | Mesa Co. on the edge… | — |
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| Machaeranthera glabriuscula (Nutt.) Cronquist & D.D.Keck | R. C. Rollins 1639 | 10 Jun 1937 | United States of America | Wyoming | Uinta Co. Near Lyman | — |
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| Machaeranthera gracilis (Nutt.) Shinners | R. C. Rollins 1555 | 19 Aug 1936 | United States of America | Colorado | Archuleta Co. 3 miles west… | — |
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| Monarda pectinata Nutt. | R. C. Rollins 1305 | 01 Jul 1936 | United States of America | Colorado | Saguache Co. Rocky ground near… | — |
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| Machaeranthera grindelioides (Nutt.) Shinners var. grindelioides | R. C. Rollins 1722 | 15 Jun 1937 | United States of America | Wyoming | Uinta Co. Shale outorop near… | — |
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| Machaeranthera pinnatifida (Shinners) Hook. var. pinnatifida | R. C. Rollins 1829 | 07 Jul 1937 | United States of America | Colorado | Las Animas Co. Open knoll… | — |
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| Sphaeromeria argentea Nutt. | R. C. Rollins 2333 | 20 Jun 1938 | United States of America | Wyoming | Uinta Co. Exposed stony flat,… | — |
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| Sphaeromeria argentea Nutt. | R. C. Rollins 1774 | 21 Jun 1937 | United States of America | Wyoming | Uinta Co. Near Lyman | — |
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| Sphaeromeria argentea Nutt. | R. C. Rollins 1174 | 11 Jun 1936 | United States of America | Wyoming | Uinta Co. Near Lyman | — |
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| Stenotus acaulis (Nutt.) Nutt. | R. C. Rollins 1628 | 10 Jun 1937 | United States of America | Wyoming | Uinta Co. Near Lyman | — |
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| Stenotus armerioides Nutt. var. armerioides | R. C. Rollins 1787 | 22 Jun 1937 | United States of America | Wyoming | Uinta Co. Heavy soil on… | — |
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| Eriogonum arcuatum Greene var. arcuatum | R. C. Rollins 1926 | 12 Aug 1937 | United States of America | Colorado | Mesa Co. on the Uncompahgre… | — |
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| Eriogonum arcuatum var. xanthum (Small) Reveal | R. C. Rollins 1267 | 28 Jun 1936 | United States of America | Colorado | Huerfano Co. Slopes of Mt… | — |
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| Eriogonum brevicaule Nutt. var. brevicaule | R. C. Rollins 1890 | 04 Aug 1937 | United States of America | Colorado | Eagle Co. Limy outcropping between… | — |
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| Senecio amplectens var. holmii (Greene) H.D.Harr. | R. C. Rollins 1443 | 26 Jul 1936 | United States of America | Colorado | Gunnison Co. 1 mile north… | — |
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| Eriogonum cernuum Nutt. var. cernuum | R. C. Rollins 1891 | 05 Aug 1937 | United States of America | Colorado | Mesa Co. 15 miles northeast… | — |
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| Senecio atratus Greene | R. C. Rollins 1256 | 28 Jun 1936 | United States of America | Colorado | Huerfano Co. Huerfano River 15… | — |
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| Senecio atratus Greene | R. C. Rollins 1496 | 07 Aug 1936 | United States of America | Colorado | Mineral Co. 1 mile northeast… | — |
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| Senecio crassulus A.Gray | R. C. Rollins 1382 | 13 Jul 1936 | United States of America | Colorado | Chaffee Co. Mountain side, near… | — |
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| Holodiscus discolor var. microphyllus (Rydb.) Jeps. | R. C. Rollins 1163 | 10 Jun 1936 | United States of America | Idaho | Twin Falls Co. Crevices of… | — |
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| Potentilla diversifolia Lehm. | R. C. Rollins 883 | 25 Jun 1935 | United States of America | Wyoming | Albany Co. Bare knoll 1/2… | — |
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| Senecio eremophilus var. kingii Greenm. | R. C. Rollins 1571 | 26 Aug 1936 | United States of America | Colorado | San Miguel Co. near Ophir | — |
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| Arabis microphylla Nutt. | R. C. Rollins 51266 | 31 Jul 1951 | United States of America | Wyoming | Park Co. Near Clarks Fork… | — |
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| Melampodium leucanthum Torr. & A.Gray | R. C. Rollins 1830 | 07 Jul 1937 | United States of America | Colorado | Las Animas Co. near Alcreek,… | — |
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| Senecio integerrimus var. exaltatus (Nutt.) Cronquist | R. C. Rollins 970 | 07 Jul 1935 | United States of America | Wyoming | Albany Co. Hillside above the… | — |
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| Senecio integerrimus Nutt. var. integerrimus | R. C. Rollins 921 | 30 Jun 1935 | United States of America | Wyoming | Albany Co. Along the Little… | — |
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| Senecio longilobus Benth. | R. C. Rollins 6114 | 22 Apr 1961 | United States of America | Texas | Brewster Co. Maravillas Creek, 3… | — |
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| Senecio longilobus Benth. | R. C. Rollins 1831 | 07 Jul 1937 | United States of America | Colorado | Las Animas Co. open rocky… | — |
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| Salvia farinacea Benth. | R. C. Rollins 5394 | 13 Apr 1953 | United States of America | Texas | Comal Co. Three miles SE… | — |
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| Eriogonum heracleoides Nutt. var. heracleoides | R. C. Rollins 1111 | 08 Jun 1936 | United States of America | Idaho | Nez Perce Co. Steep north-facing… | — |
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| Senecio soldanella A.Gray | R. C. Rollins 51142 | 16 Jul 1951 | United States of America | Colorado | San Juan Co. Southeast slope… | — |
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| Salvia texana (Scheele) Torr. | R. C. Rollins 5369 | 11 Apr 1953 | United States of America | Texas | Guadalupe Co. along Cibolo Creek | — |
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| Eriogonum inflatum Torr. & Frém. | R. C. Rollins 1905 | 09 Aug 1937 | United States of America | Colorado | Mesa Co. 2 miles northwest… | — |
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| Eriogonum jamesii Benth. var. jamesii | R. C. Rollins 1527 | 15 Aug 1936 | United States of America | Colorado | La Plata Co. Dry bank… | — |
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| Eriogonum lachnogynum Torr. ex Benth. | R. C. Rollins 1871 | 14 Jul 1937 | United States of America | Colorado | Las Animas Co. 20 miles… | — |
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| Scutellaria brittonii Porter | R. C. Rollins 1802 | 03 Jul 1937 | United States of America | Colorado | Las Animas Co. 2 miles… | — |
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| Scutellaria brittonii Porter | R. C. Rollins 1201 | 22 Jun 1936 | United States of America | Colorado | El Paso Co. on eastern… | — |
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| Eriogonum lonchophyllum Torr. & A.Gray | R. C. Rollins 1961 | 26 Aug 1937 | United States of America | Colorado | Montrose Co. On Poison Mesa,… | — |
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| Eriogonum lonchophyllum Torr. & A.Gray | R. C. Rollins 1961a | 26 Aug 1937 | United States of America | Colorado | Delta Co. Dry hillside near… | — |
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| Eriogonum lonchophyllum Torr. & A.Gray | R. C. Rollins 1860 | 13 Jul 1937 | United States of America | Colorado | Las Animas Co. Frijoli Hill,… | — |
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| Eriogonum lonchophyllum Torr. & A.Gray | R. C. Rollins 1540 | 16 Aug 1936 | United States of America | Colorado | Archuleta Co. headwaters of Coyote… | — |
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| Packera cana (Hook.) W.A.Weber & Á.Löve | R. C. Rollins 1048 | 23 Jul 1935 | United States of America | Wyoming | Albany Co. Hillside near the… | — |
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| Packera cana (Hook.) W.A.Weber & Á.Löve | R. C. Rollins 1006 | 14 Jul 1935 | United States of America | Wyoming | Albany Co. 1/2 mile above… | — |
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| Packera fendleri (A.Gray) W.A.Weber & Á.Löve | R. C. Rollins 909 | 30 Jun 1935 | United States of America | Wyoming | Albany Co. in the Centennial… | — |
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| Packera fendleri (A.Gray) W.A.Weber & Á.Löve | R. C. Rollins 1196 | 21 Jun 1936 | United States of America | Colorado | Arapahoe Co. Roadside near Larkspur | — |
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| Packera fendleri (A.Gray) W.A.Weber & Á.Löve | R. C. Rollins 1183 | 21 Jun 1936 | United States of America | Colorado | El Paso Co. near Palmer… | — |
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| Packera tridenticulata (Rydb.) W.A.Weber & Á.Löve | R. C. Rollins 1237 | 24 Jun 1936 | United States of America | Colorado | Custer Co. North Hardscrabble Creek | — |
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| Packera werneriifolia (A.Gray) W.A.Weber & Á.Löve | R. C. Rollins 51157 | 16 Jul 1951 | United States of America | Colorado | Hinsdale Co. Southeastern slope of… | — |
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| Packera werneriifolia (A.Gray) W.A.Weber & Á.Löve | R. C. Rollins 51126 | 15 Jul 1951 | United States of America | Colorado | Hinsdale Co. south slope of… | — |
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| Pyrrocoma crocea (A.Gray) Greene | R. C. Rollins 1548 | 18 Aug 1936 | United States of America | Colorado | Archuleta Co. Dry slope near… | — |
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| Eriogonum microthecum var. simpsonii (Benth.) Reveal | R. C. Rollins 1532 | 15 Aug 1936 | United States of America | Colorado | Archuleta Co. Near Spring Creek,… | — |
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| Parthenium confertum A.Gray | R. C. Rollins 9019 | 07 Apr 1990 | United States of America | Texas | Karnes Co. Off U.S. Hwy.… | — |
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| Parthenium hysterophorus L. | R. C. Rollins 5356 | 09 Apr 1953 | United States of America | Texas | Calhoun Co. oil field, near… | — |
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| Teucrium laciniatum Torr. | R. C. Rollins 1823 | 06 Jul 1937 | United States of America | Colorado | Las Animas Co. Dry roadside… | — |
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