Displaying 51 - 75 out of 319 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Andropogon ternarius Michx. | S. L. Welsh 12613 | 15 Sep 1974 | United States of America | Arkansas | Johnson Co. Opening in oak… | — |
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| Antennaria alpina (L.) Gaertn. | S. L. Welsh 4775 | 20 July, 1965 | United States of America | Alaska | Denali Highway, ca. 12.6 miles… | — |
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| Antennaria corymbosa E.E.Nelson | S. L. Welsh 6661 | 01 Sep 1967 | United States of America | Utah | Summit Co. In Bald Mountain… | — |
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| Antennaria corymbosa E.E.Nelson | S. L. Welsh 19927 | 02 Aug 1980 | United States of America | Utah | Duchesne Co. Uinta Mountains, Yellowstone… | — |
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| Antennaria corymbosa E.E.Nelson | S. L. Welsh 19763 | 25 July 1980 | United States of America | Utah | Duchesne Co. Uinta Mtns, Brown… | — |
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| Antennaria dimorpha (Nutt.) Torr. & A.Gray | S. L. Welsh 5241 | 03 May 1966 | United States of America | Utah | Washington Co. Mountain Meadows | — |
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| Antennaria marginata Greene | S. L. Welsh 2094 | 9 June 1963 | United States of America | Colorado | Montezuma Co. Headquarters area, Mesa… | — |
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| Anthoxanthum arcticum Veldkamp | S. L. Welsh 20837 | 07 Aug 1981 | United States of America | Alaska | Prudhoe Bay, Maritime tundra, polygonal… | — |
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| Anthoxanthum monticola (Bigelow) Veldkamp | S. L. Welsh 5581 | 26 Jun 1966 | Canada | Yukon | Sixty-mile Road, mile 12. Gravelly… | — |
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| Anthoxanthum monticola (Bigelow) Veldkamp | S. L. Welsh 4770 | 20 Jul 1965 | United States of America | Alaska | Denali Highway, ca. 12.6 miles… | — |
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| Anthoxanthum monticola (Bigelow) Veldkamp | S. L. Welsh 10553 | 12 Jul 1970 | Canada | Yukon | — |
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| Arabis selbyi Rydb. | S. L. Welsh 2124 | 09 Jun 1963 | United States of America | Colorado | Montezuma Co. Pine Canyon, south… | — |
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| Aralia bicrenata Wooton & Standl. | S. L. Welsh 23829 | 09 Jul 1987 | United States of America | Utah | Washington Co. ZNP, Zion Narrows… | — |
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| Arceuthobium divaricatum Engelm. | S. L. Welsh 2186 | 12 Jun 1963 | United States of America | Colorado | Montezuma Co. South end, Wetherill… | — |
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| Arctagrostis latifolia subsp. arundinacea (Trin.) Tzvelev | S. L. Welsh 4880 | 23 Jul 1965 | United States of America | Alaska | Tangle River, ca. 22 miles… | — |
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| Arctagrostis latifolia subsp. latifolia | S. L. Welsh 12286 | 30 Jun 1973 | Canada | Yukon | Stream bar, along a tributary… | — |
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| Arctagrostis latifolia subsp. latifolia | S. L. Welsh 10733 | 15 Jul 1970 | Canada | Yukon | Gravel bar along Blow River,… | — |
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| Arctagrostis latifolia subsp. latifolia | S. L. Welsh 10589 | 12 Jul 1970 | Canada | Yukon | Gravel bar, in Black Fox… | — |
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| Arctagrostis latifolia subsp. latifolia | S. L. Welsh 10648 | 14 Jul 1970 | Canada | Yukon | Lake shore, ca 16 mi… | — |
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| Arctagrostis latifolia subsp. latifolia | S. L. Welsh 5090 | 03 Aug 1965 | United States of America | Alaska | Ca. 20 miles east of… | — |
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| Arctagrostis latifolia subsp. latifolia | S. L. Welsh 4464 | 14 Jul 1965 | United States of America | Alaska | Along Wolverine Creek, ca. 5… | — |
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| Arctagrostis latifolia subsp. latifolia | S. L. Welsh 4822 | 21 Jul 1965 | United States of America | Alaska | Kantishna, ca. 86 miles west… | — |
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| Arctagrostis latifolia subsp. latifolia | S. L. Welsh 4617 | 12 Jul 1965 | United States of America | Alaska | Eklutna Lake. | — |
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| Aristida purpurea var. fendleriana (Steud.) Vasey | S. L. Welsh 2387 | 12 Aug 1963 | United States of America | Utah | San Juan Co. Tuwa Canyon;… | — |
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| Aristida purpurea var. fendleriana (Steud.) Vasey | S. L. Welsh 2178 | 12 Jun 1963 | United States of America | Colorado | Montezuma Co. Pool Canyon, south… | — |
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