Displaying 1 - 25 out of 1100 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | ||
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| Silphium perfoliatum L. | L. D. von Schweinitz s.n. | 19 Aug 1818 | United States of America | North Carolina | — | 02549411 |
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| Silphium asteriscus var. dentatum (Elliott) Chapm. | Collector unknown s.n. | 1834 | United States of America | Colorado | — | 3090845 |
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| Silphium compositum Michx. | L. R. Gibbes s.n. | Jul 1835 | United States of America | — | Blue ridge | — | 3109206 |
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| Silphium laciniatum var. robinsonii L.M.Perry | C. W. Short s.n. | 1835 | United States of America | Kentucky | Barrens of Kentucky | isotype | 233254 |
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| Silphium laciniatum var. robinsonii L.M.Perry | C. W. Short s.n. | 1835 | United States of America | Kentucky | Barrens of Kentucky | isotype | 335344 |
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| Silphium radula Nutt. var. radula | F. J. Lindheimer 961 | 1849 - 1851 | United States of America | Texas | Comal Co. Comanche Spring | — | 3109684 |
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| Silphium asteriscus L. var. asteriscus | T. C. Porter s.n. | 30 Aug 1850 | United States of America | Pennsylvania | Franklin Co. prope Mercersburg | — | 3090622 |
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| Silphium asteriscus var. dentatum (Elliott) Chapm. | L. R. Gibbes s.n. | Jun 1851 | United States of America | South Carolina | Charleston Neck | — | 3090855 |
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| Silphium asteriscus var. asperrimum | F. J. Lindheimer s.n. | 1852 | United States of America | Texas | — | 3090748 |
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| Silphium asteriscus var. asperrimum | C. Wright 1408 | 1852 | United States of America | New Mexico | — | 3090747 |
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| Silphium laciniatum L. | J. M. Bigelow s.n. | 27 Jul 1853 | United States of America | — | Fort Smith to the Rio… | — | 3109427 |
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| Silphium nodum Small | L. R. Gibbes s.n. | 1855 | United States of America | South Carolina | Charleston Co. Charleston | holotype | 233250 |
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| Silphium asteriscus var. dentatum (Elliott) Chapm. | L. R. Gibbes s.n. | 20 May 1859 | United States of America | South Carolina | Summerville | — | 3090794 |
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| Silphium reniforme Raf. ex Nutt. | L. R. Gibbes s.n. | 20 May 1859 | United States of America | South Carolina | Summerville | — | 3109243 |
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| Silphium asteriscus var. trifoliatum (L.) Clevinger | Brewer s.n. | 1 Aug 1859 | United States of America | Pennsylvania | Washington | — | 3090889 |
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| Silphium integrifolium Michx. var. integrifolium | W. M. Canby s.n. | 1864 | United States of America | — | Ex. Western Seed | — | 3109292 |
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| Silphium brachiatum Gatt. | A. Gattinger s.n. | Jul 1867 | United States of America | Tennessee | Cowan | isotype | 233264 |
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| Silphium brachiatum Gatt. | A. Gattinger s.n. | Jul 1867 | United States of America | Tennessee | Cowan | isotype | 233265 |
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| Silphium laciniatum L. | W. M. Canby s.n. | Aug 1868 | United States of America | Illinois | Champaign Co. Tolono | — | 3109481 |
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| Silphium terebinthinaceum Jacq. var. terebinthinaceum | W. M. Canby s.n. | Aug 1868 | United States of America | Illinois | Prairies, Tolono | — | 3109751 |
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| Silphium asteriscus var. trifoliatum (L.) Clevinger | A. P. Garber s.n. | 1868 | United States of America | Pennsylvania | Lancaster Co. banks of the… | — | 3047358 |
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| Silphium radula Nutt. var. radula | E. Palmer 440 | 1868 | United States of America | Oklahoma | Indian Territory, chiefly on the… | — | 3109679 |
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| Silphium asteriscus var. asperrimum | T. F. Allen s.n. | Jun 1870 | United States of America | — | on Lookout Mt., Tenn. and… | — | 3090697 |
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| Silphium asteriscus var. asperrimum | T. F. Allen s.n. | Jun 1870 | United States of America | — | on Lookout Mt., Tenn. and… | — | 3090765 |
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| Silphium asteriscus var. asperrimum | W. M. Canby s.n. | Jul 1871 | United States of America | — | Plains of Kanzas | — | 3090753 |
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