Displaying 76 - 100 out of 4458 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Erigeron poliospermus A.Gray | F. Tweedy 922 | May 1883 | United States of America | Washington | Walla Walla region, Washington Territory | syntype |
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| Pinus contorta var. latifolia Engelm. | F. Tweedy 3249 | 20 Jul 1900-15 Aug 1900 | United States of America | Wyoming | Eastern slope of the Big… | — |
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| Pinus contorta var. latifolia Engelm. | F. Tweedy 3249 | 20 Jul 1900-15 Aug 1900 | United States of America | Wyoming | Eastern slope of the Big… | — | ||||
| Pinus contorta var. latifolia Engelm. | F. Tweedy 2670 | Jul 1899 | United States of America | Wyoming | Sheridan Co. Big Horn Mountains | — |
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| Pinus contorta var. latifolia Engelm. | F. Tweedy 2670 | Jul 1899 | United States of America | Wyoming | Sheridan Co. Big Horn Mountains | — | ||||
| Cuscuta gracilis Rydb. | F. Tweedy 3492 | 15 Jun-15 Jul 1900 | United States of America | Wyoming | Rolling plains between Sheridan and… | type |
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| Carduus griseus Rydb. | F. Tweedy 321 | Aug 1894 | United States of America | Colorado | Telluride | isotype |
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| Hymenoxys acaulis var. glabra (A.Gray) K.L.Parker | F. Tweedy s.n. | Jun 1889 | United States of America | Montana | Livingston | — |
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| Geranium nervosum Rydb. | F. Tweedy 494 | Jul 1897 | United States of America | Wyoming | Fish Creek, Teton Forest Reserve | lectotype |
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| Silene acaulis (L.) Jacq. | F. Tweedy 141 | August 1897 | United States of America | Wyoming | Sheep Mountains, Teton Forest Reserve,… | — |
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| Astragalus barrii Barneby | F. Tweedy 3156 | Sep 1900 | United States of America | Wyoming | Johnson Co. | — |
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| Abronia arenaria Menzies ex Hook. | F. Tweedy 442 | Aug 1885 | United States of America | Wyoming | Yellowstone Park; mouth of Pelican… | holotype |
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| Erigeron tweedyana Canby & Rose | F. Tweedy s.n. | Jun 1887 | United States of America | Montana | Park Co. | type |
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| Erigeron tweedyana Canby & Rose | F. Tweedy s.n. | Jun 1889 | United States of America | Montana | Park Co. | isotype |
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| Anemone multifida Poir. var. multifida | F. Tweedy 176 | July 1897 | United States of America | Wyoming | Spread Creek, Teton Forest Reserve,… | — |
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| Minuartia obtusiloba (Rydb.) House | F. Tweedy 133 | August 1897 | United States of America | Wyoming | Sheep Mountains, Teton Forest Reserve,… | — |
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| Minuartia obtusiloba (Rydb.) House | F. Tweedy 135 | August 1897 | United States of America | Wyoming | Gros Ventre River, Teton Forest… | — |
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| Minuartia obtusiloba (Rydb.) House | F. Tweedy 136 | August 1897 | United States of America | Wyoming | Two-Gwo-Tee Pass, Teton Forest Reserve,… | — |
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| Minuartia obtusiloba (Rydb.) House | F. Tweedy 134 | August 1897 | United States of America | Wyoming | Buffalo Fork, Teton Forest Reserve,… | — |
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| Astragalus reventus A.Gray | F. Tweedy s.n. | 1889 | United States of America | Montana | Beaverhead Co. | — |
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| Astragalus australis var. glabriusculus (Hook.) Isely | F. Tweedy 628 | Aug 1897 | United States of America | Wyoming | Mt. Leidy | — |
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| Taxus canadensis Marshall | F. Tweedy s.n. | Aug 1879 | United States of America | New York | Hamilton Co. | — |
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| Polygala tweedyi Britton | F. Tweedy s.n. | 1879 | United States of America | Texas | Tom Green Co. | holotype |
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| Carduus pulcherrimus Rydb. | F. Tweedy 3048 | 20 Jul 1900-15 Aug 1900 | United States of America | Wyoming | Eastern slope of the Big… | holotype |
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| Urtica dioica subsp. gracilis (Aiton) Selander | F. Tweedy 347 | Jul 1897 | United States of America | Wyoming | Fish Creek, Teton Forest Reserve | — |
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