Displaying 1 - 25 out of 4457 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | ||
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| Astragalus convallarius Greene var. convallarius | F. Tweedy 261 | Jul 1897 | United States of America | Wyoming | Spread Creek; Teton Forest Reserve | — | 802990 |
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| Polygonum kelloggii var. watsonii (S.Watson) Reveal | F. Tweedy 97 | July 1898 | United States of America | Wyoming | Sheridan Co. Headwaters of Tongue… | — | 412964 |
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| Lupinus lucidulus Rydb. | F. Tweedy 271 | Aug 1897 | United States of America | Wyoming | Spread Creek | holotype | 15936 |
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| Oxyria digyna (L.) Hill | F. Tweedy 475 | August 1897 | United States of America | Wyoming | Teton Forest Reserve, northwestern Wyoming | — | 404342 |
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| Oxyria digyna (L.) Hill | F. Tweedy 93 | July 1898 | United States of America | Wyoming | Headwaters of Tongue River, Big… | — | 404343 |
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| Crepis runcinata subsp. alpicola Rydb. | F. Tweedy 19 | Jul 1898 | United States of America | Wyoming | Headwaters of Tongue River, Big… | — | 167799 |
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| Delphinium macroceratilis Rydb. | F. Tweedy s.n. | 1879 | United States of America | Texas | Tom Green Co. | holotype | 353343 |
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| Aquilegia coerulea var. ochroleuca Hook. | F. Tweedy 181 | July 1897 | United States of America | Wyoming | Fish Creek, Teton Forest Reserve,… | — | 485606 |
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| Penstemon tweedyi Canby & Rose | F. Tweedy 35 | Jun 1888 | United States of America | Montana | Beaverhead Co. | isotype | 130539 |
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| Penstemon tweedyi Canby & Rose | F. Tweedy 35 | Jun 1888 | United States of America | Montana | Beaverhead Co. | isotype | 130540 |
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| Penstemon tweedyi Canby & Rose | F. Tweedy 35 | Jun 1888 | United States of America | Montana | Beaverhead Co. | isotype | 130541 |
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| Lithophragma bulbifera Rydb. | F. Tweedy 1411 | 20 Jun 1901 | United States of America | Wyoming | Carbon Co. Battle, Continental Divide | holotype | 186091 |
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| Astragalus reventoides M.E.Jones | F. Tweedy 7 | Jul 1888 | United States of America | Montana | Beaverhead Co. Grasshopper Creek. | isotype | 5680 |
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| Saxifraga subapetala E.E.Nelson | F. Tweedy 113 | Aug 1897 | United States of America | Wyoming | Gross Ventre River | — | 786505 |
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| Erigeron gracilis Rydb. | F. Tweedy 702 | Jul 1885 | United States of America | Wyoming | Yellowstone Park: Glough Creek | holotype | 168453 |
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| Penstemon strictus Benth. | F. Tweedy 4298 | 07 Jul 1901 | United States of America | Colorado | Jackson Co. Pearl, Colorado-Wyoming line | — | 661509 |
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| Cerastium beeringianum Cham. & Schltdl. | F. Tweedy 129 | August 1897 | United States of America | Wyoming | Two-Gwo-Tee Pass, Teton Forest Reserve,… | — | 446510 |
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| Potentilla brunnescens Rydb. | F. Tweedy 212 | Aug 1897 | United States of America | Wyoming | NW Wyoming. Spread Creek. | type | 436310 |
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| Astragalus alpinus L. var. alpinus | F. Tweedy 252 | Aug 1897 | United States of America | Wyoming | Buffalo Fork, Teton Forest Reserve,… | — | 790923 |
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| Lupinus adscendens Rydb. | F. Tweedy 129 | Jul 1898 | United States of America | Wyoming | Headwaters of Tongue River, Big… | holotype | 15764 |
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| Stellaria longifolia Muhl. ex Willd. | F. Tweedy 5525 | June 20th - July 10th, 1903 | United States of America | Colorado | Gilpin Co. Eldora to Baltimore | — | 453200 |
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| Thalictrum venulosum Trel. | F. Tweedy 182 | Jul 1897 | United States of America | Wyoming | Spread Creek, Teton Forest Reserve,… | — | 496139 |
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| Penstemon secundiflorus Benth. ex A.DC. | F. Tweedy 5712 | 15 Jul 1903-25 Jul 1903 | United States of America | Colorado | Clear Creek Co. Empire | — | 651857 |
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| Penstemon secundiflorus Benth. ex A.DC. | F. Tweedy 5713 | 15 Jul 1903-25 Jul 1903 | United States of America | Colorado | Clear Creek Co. Empire | — | 651858 |
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| Alyssum alyssoides (L.) L. | F. Tweedy 5593 | Jun 1903 | United States of America | Colorado | Boulder Co. Near Boulder | — | 785928 |
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