Displaying 1 - 75 out of 144 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | ||
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| Penstemon confertus Douglas ex Lindl. | F. K. Butters 10 | 04 Jul 1907 | Canada | Alberta | Banff. Canadian Rocky Mountains | — | 584573 |
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| Mitella breweri f. denticulata Rosend. | F. K. Butters 142 | 15 Jul 1907 | Canada | — | Canadian Rocky Mountains; Prospector's Valley | isotype | 186113 |
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| Taxus canadensis Marshall | F. K. Butters 336 | 07 Jul 1932 | United States of America | Minnesota | Cook Co. McFarland Lake | — | 312716 |
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| Centaurea maculosa Lam. | F. K. Butters s.n. | 03 Oct 1918 | United States of America | Minnesota | Dakota Co. Pilot Mound | — | 581120 |
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| Picea mariana (Mill.) Britton, Sterns & Poggenb. | F. K. Butters s.n. | Sep 1918 | United States of America | Minnesota | Saint Louis Co. Burntside Lake,… | — | 30325 |
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| Oxytropis ixodes Butters & Abbe | F. K. Butters 611 | 27 Jun 1940 | United States of America | Minnesota | Cook Co. Slate cliffs on… | isotype | 5247 |
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| Oxytropis ixodes Butters & Abbe | F. K. Butters 611 | 27 Jun 1940 | United States of America | Minnesota | Cook Co. Slate cliffs on… | isotype | 5246 |
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| Juniperus horizontalis Moench | F. K. Butters 434 | 13 Jul 1937 | United States of America | Minnesota | Cook Co. About 0.5 miles… | — | 19556 |
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| Juniperus scopulorum Sarg. | F. K. Butters 501 | 01 Jul 1910 | Canada | British Columbia | Golden | — | 20752 |
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| Juniperus scopulorum Sarg. | F. K. Butters 500 | 01 Jul 1910 | Canada | British Columbia | Golden | — | 20758 |
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| Penstemon digitalis Nutt. ex Sims | F. K. Butters 10889 | 06 Jul 1939 | United States of America | Minnesota | Pine Co. Along Highway 61,… | — | 592015 |
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| Astragalus alpinus L. var. alpinus | F. K. Butters 1322 | 12 Jun 1906 | Canada | Alberta | Old road, Banff | — | 01215287 |
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| Astragalus australis (L.) Lam. | F. K. Butters 15 | 04 Jul 1907 | Canada | Alberta | Banff | — | 01244478 |
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| Astragalus miser var. serotinus (A.Gray ex Cooper) Barneby | F. K. Butters 12 | 04 Jul 1907 | Canada | Alberta | Banff | — | 01261862 |
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| Astragalus robbinsii var. minor (Hook.) Barneby | F. K. Butters 1384 | 11 Jun 1906 | Canada | Alberta | Banff. Candian Rocky Mountains | — | 01282386 |
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| Agrostis canina L. | F. K. Butters 689691 | 22 Jul 1911 | Canada | British Columbia | North M[orrain, Sir] Sandford El. | — | 1554528 |
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| Agrostis hyemalis (Walter) Britton, Sterns & Poggenb. | F. K. Butters 37 | 07 Jul 1938 | United States of America | Minnesota | Cook Co. On top of… | — | 1555915 |
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| Agrostis hyemalis (Walter) Britton, Sterns & Poggenb. | F. K. Butters 55 | 07 Jul 1938 | United States of America | Minnesota | Cook Co. Along base of… | — | 1555918 |
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| Agrostis hyemalis (Walter) Britton, Sterns & Poggenb. | F. K. Butters 465 | 17 Jul 1932 | United States of America | Minnesota | Cook Co. S. of Clearwater… | — | 1556185 |
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| Bromus ciliatus L. | F. K. Butters 870 | 02 Aug 1944 | United States of America | Minnesota | Cook Co. on Lima Mt. | — | 1634365 |
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| Calamagrostis canadensis (Michx.) P.Beauv. | F. K. Butters 389 | 23 Jul 1908 | Canada | British Columbia | Glacier | — | 1645515 |
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| Calamagrostis canadensis (Michx.) P.Beauv. | F. K. Butters 358 | 11 Jul 1937 | United States of America | Minnesota | Cook Co. South side of… | — | 1645879 |
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| Calamagrostis canadensis (Michx.) P.Beauv. | F. K. Butters 593 | 01 Aug 1910 | United States of America | Minnesota | Cougar Valley. | — | 1645882 |
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| Calamagrostis neglecta subsp. inexpansa (A.Gray) Tzvelev | F. K. Butters 312 | 04 Sep 1907 | Canada | — | Banff, [Atla]. | — | 1597314 |
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| Calamagrostis purpurascens R.Br. | F. K. Butters 108 | 11 Jul 1938 | United States of America | Minnesota | Cliff at west end of… | — | 1647167 |
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| Glyceria striata (Lam.) Hitchc. | F. K. Butters 4517 | 01 Jul 1924 | United States of America | Minnesota | Cook Co. Carribean River. | — | 1725653 |
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| Poa compressa L. | F. K. Butters 1036 | 13 Aug 1944 | United States of America | Minnesota | Cook Co. Ridge of Mt.… | — | 1789510 |
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| Poa compressa L. | F. K. Butters 976 | 09 Aug 1944 | United States of America | Minnesota | Cook Co. Roadside about 1… | — | 1789517 |
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| Poa glauca Vahl | F. K. Butters 1012 | 11 Aug 1944 | United States of America | Minnesota | Cook Co. North side of… | — | 1790643 |
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| Poa glauca Vahl | F. K. Butters 350 | 11 Jul 1937 | United States of America | Minnesota | Cook Co. Lucille Island. | — | 1790741 |
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| Poa glauca Vahl | F. K. Butters 1041 | 13 Aug 1944 | United States of America | Minnesota | Cook Co. Top of Mt.… | — | 1790836 |
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| Poa interior Rydb. | F. K. Butters 4505 | 29 Jun 1924 | United States of America | Minnesota | Cook Co. On shingle beach,… | — | 1791167 |
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| Poa nemoralis L. | F. K. Butters 416 | 13 Jul 1932 | United States of America | Minnesota | Cook Co. S. side of… | — | 1791736 |
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| Poa nemoralis L. | F. K. Butters 670 | 01 Jul 1940 | United States of America | Minnesota | Cook Co. On west side… | — | 1791818 |
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| Poa nemoralis L. | F. K. Butters 199 | 30 Jun 1936 | United States of America | Minnesota | Top of Mt. Maud, east… | — | 1791819 |
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| Poa nemoralis L. | F. K. Butters 471 | 17 Jul 1932 | United States of America | Minnesota | Cook Co. S. of Clearwater… | — | 1791848 |
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| Poa palustris L. | F. K. Butters 915 | 04 Aug 1944 | United States of America | Minnesota | Cook Co. About 2 mi.… | — | 1792977 |
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| Poa pratensis L. | F. K. Butters 4505 | 29 Jun 1924 | — | — | North Shore, Lake Superior. On… | — | 1793737 |
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| Arnica latifolia Bong. | F. K. Butters 233 | 27 Jul 1907 | Canada | British Columbia | Selkirk Mountains; Grizzly Creek, Prairie… | — | 1881909 |
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| Antennaria howellii subsp. canadensis (Greene) R.J.Bayer | F. K. Butters 69 | June 20, 1936 | United States of America | Minnesota | Cook Co. Clearwater Lake. | — | 1890091 |
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| Antennaria howellii subsp. neodioica (Greene) R.J.Bayer | F. K. Butters 10811 | July 1, 1939 | United States of America | Minnesota | Cook Co. On North side… | — | 1890272 |
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| Antennaria howellii subsp. neodioica (Greene) R.J.Bayer | F. K. Butters 39 | July 7, 1938 | United States of America | Minnesota | Cook Co. Top of the… | — | 1890279 |
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| Erigeron compositus var. glabratus Macoun | F. K. Butters 32 | 05 Jul 1907 | Canada | Alberta | Banff; Devil's Lake | — | 2078828 |
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| Erigeron strigosus var. septentrionalis (Fernald & Wiegand) Fernald | F. K. Butters 766 | 27 Jul 1944 | United States of America | Minnesota | Cook Co. along Gunflint Trail… | — | 2096190 |
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| Carex brunnescens (Pers.) Poir. | F. K. Butters 750 | 07 Jul 1940 | United States of America | Minnesota | Cook Co. Porcupine Island | — | 2252571 |
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| Carex canescens L. | F. K. Butters 4659 | 07 Jul 1924 | United States of America | Minnesota | Grand Marais. | — | 2253449 |
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| Carex capillaris L. | F. K. Butters 48 | 06 Jul 1907 | Canada | — | Devil's Lake, Banff Alta. | — | 2254016 |
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| Carex crawfordii Fernald | F. K. Butters 846 | 02 Aug 1944 | United States of America | Minnesota | Cook Co. Poplar Lake | — | 2260999 |
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| Carex cryptolepis Mack. | F. K. Butters 475 | 19 Jul 1932 | United States of America | Minnesota | Cook Co. S. end of… | — | 2261631 |
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| Carex deweyana Schwein. var. deweyana | F. K. Butters 671 | 01 Jul 1940 | United States of America | Minnesota | Cook Co. Cliff on west… | — | 2262546 |
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| Carex disperma Dewey | F. K. Butters 81 | 06 Jul 1907 | Canada | Alberta | Canadian Rocky Mountains. Hillsides, Banff. | — | 2263446 |
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| Carex gynocrates Wormsk. | F. K. Butters 249 | 26 Jul 1907 | Canada | British Columbia | Grizzly Creek, Prairies Hills | — | 2279225 |
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| Carex houghtonii Torr. | F. K. Butters 681 | 01 Jul 1940 | United States of America | Minnesota | Slate talus below cliff on… | — | 2191451 |
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| Carex lanuginosa Michx. | F. K. Butters 328 | 07 Jul 1932 | United States of America | Minnesota | Cook Co. 30 mi. from… | — | 2194291 |
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| Carex leptalea Wahlenb. | F. K. Butters 179 | 20 Jul 1907 | Canada | — | Lake Louise Laygan Alata. | — | 2286958 |
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| Carex leptalea Wahlenb. | F. K. Butters 4557 | 03 Jul 1924 | United States of America | Minnesota | Cook Co. Pidgeon River. | — | 2287181 |
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| Carex leptonervia (Fernald) Fernald | F. K. Butters s.n. | 18 Jun 1936 | United States of America | Minnesota | Along wood road near mouth… | — | 2287441 |
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| Carex nardina (Hornem.) Fr. | F. K. Butters 140 | 15 Jul 1907 | Canada | Alberta | Paradise Valley, Laggan | — | 2292741 |
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| Carex paupercula Michx. | F. K. Butters 827 | 30 Jul 1944 | United States of America | Minnesota | Cook Co. Sphagnum bog near… | — | 2295113 |
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| Carex peckii Howe ex Peck | F. K. Butters 253 | 04 Jul 1937 | United States of America | Minnesota | Cook Co. Cliffs, S side… | — | 2295448 |
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| Carex rossii Boott | F. K. Butters 1 | 04 Jul 1907 | Canada | Alberta | Banff. | — | 2300537 |
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| Carex saltuensis L.H.Bailey | F. K. Butters 64 | 05 Jul 1907 | Canada | Alberta | Banff. Devil's Lake | — | 2301579 |
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| Carex norvegica Retz. | F. K. Butters 4645 | 07 Jul 1924 | United States of America | Minnesota | Cook Co. | — | 2308952 |
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| Carex norvegica Retz. | F. K. Butters 82-1398 | 11 Jun 06 - 07 Jul 07 | Canada | Alberta | Banff. | — | 2309008 |
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| Carex viridula Michx. | F. K. Butters 1321 | 11 Jun 1906 | Canada | Alberta | Banff. Sulphur springs. | — | 2310063 |
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| Juncus arcticus subsp. littoralis (Engelm.) Hultén | F. K. Butters 4083 | 14 Jun 1921 | United States of America | Minnesota | Otter Tail Co. Lake shores,… | — | 2377342 |
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| Juncus brevicaudatus (Engelm.) Fernald | F. K. Butters 982a | 08 Aug 1944 | United States of America | Minnesota | Cook Co. 1/2 mi. west… | — | 2379674 |
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| Juncus nodosus L. | F. K. Butters 6570 | 08 Sep 1934 | United States of America | Minnesota | Beltrami Co. Sandy shore of… | — | 2397187 |
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| Rorippa palustris var. fernaldiana (Butters & Abbe) Stuckey | F. K. Butters 10860 | 03 Jul 1939 | United States of America | Minnesota | Cook Co. Mossy cracks in… | — | 2393527 |
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| Juncus triglumis var. albescens Lange | F. K. Butters 175 | 20 Jul 1907 | Canada | Alberta | Lake Louise. Laggan | — | 2403219 |
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| Juncus triglumis var. albescens Lange | F. K. Butters 236 | 26 Jul 1907 | Canada | British Columbia | Grizzly Peak, Prairie Hills | — | 2403242 |
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| Salix arctica var. petraea (Andersson) Bebb | F. K. Butters 202 | 21 Jul 1909 | Canada | Alberta | Laggan | — | 2404981 |
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| Salix arctica var. petraea (Andersson) Bebb | F. K. Butters 521 | 11 Jul 1910 | Canada | British Columbia | Landford Morain | — | 2404986 |
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| Salix bebbiana var. bebbiana | F. K. Butters 36 | 19 Jun 1936 | United States of America | Minnesota | Cook Co. Base of the… | — | 2411630 |
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| Salix phylicifolia subsp. planifolia (Pursh) Hiitonen | F. K. Butters 44 | 19 Jun 1936 | United States of America | Minnesota | Cook Co. On the "Point",… | — | 2062740 |
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