Displaying 101 - 175 out of 517 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | ||
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| Calamagrostis neglecta subsp. inexpansa (A.Gray) Tzvelev | A. Hayden 91 | 16 Jul 1935 | United States of America | Iowa | Emmet Co. 4 mi. N.… | — | 1646872 |
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| Calamagrostis neglecta subsp. inexpansa (A.Gray) Tzvelev | A. Hayden 89 | 14 Jul 1935 | United States of America | Iowa | Clay Co. Lake Twp., Sec… | — | 1646873 |
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| Calamovilfa longifolia (Hook.) Hack. ex Scribn. & Southw. | A. Hayden 9278 | July 31, 1939 | United States of America | Iowa | Lyon Co. Sioux Twp. On… | — | 1647724 |
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| Glyceria borealis (Nash) Batch. | A. Hayden 3141 | 26 Jul 1943 | United States of America | Iowa | Palo Alto Co. Highland Twp.,… | — | 1774714 |
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| Glyceria borealis (Nash) Batch. | A. Hayden 9276 | 07 Jul 1939 | United States of America | Iowa | Palo Alto Co. Highland Twp.,… | — | 1774716 |
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| Glyceria grandis S.Watson | A. Hayden 38 | 25 Jun 1934 | United States of America | Iowa | Clay Co. Lake twp. Sec.… | — | 1775448 |
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| Glyceria grandis S.Watson | A. Hayden 15 | 24 Jul 1934 | United States of America | Iowa | Clay Co. Lake twp., Sec.… | — | 1775449 |
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| Glyceria grandis S.Watson | A. Hayden 7087 | 20 Jun 1937 | United States of America | Iowa | Palo Alto Co. Walnut Twp.,… | — | 1775450 |
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| Glyceria striata (Lam.) Hitchc. | A. Hayden 78 | 20 May 1935 | United States of America | Iowa | Palo Alto Co. Lost Island… | — | 1724296 |
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| Glyceria striata (Lam.) Hitchc. | A. Hayden 77 | 15 Jun 1938 | United States of America | Iowa | Clay Co. Lake Twp., Sec.… | — | 1724297 |
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| Glyceria striata (Lam.) Hitchc. | A. Hayden 17 | 14 Aug 1934 | United States of America | Iowa | Emmet Co. Center twp., Sec.… | — | 1724298 |
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| Glyceria striata (Lam.) Hitchc. | A. Hayden 9277 | 25 Jun 1939 | United States of America | Iowa | Davis Co. Lick Creek Twp.,… | — | 1725647 |
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| Hesperostipa comata (Trin. & Rupr.) Barkworth | A. Hayden 46 | 20 Jun 1934 | United States of America | Iowa | Palo Alto Co. Lost Island… | — | 1701579 |
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| Muhlenbergia mexicana (L.) Trin. | A. Hayden 616 | 21 Sep 1936 | United States of America | Iowa | Highland Twp., Sec. 6; south… | — | 1725457 |
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| Muhlenbergia mexicana (L.) Trin. | A. Hayden 8132 | 09 Sep 1941 | United States of America | Iowa | Clay Co. Dewey's Pasture, ca.… | — | 1725468 |
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| Muhlenbergia asperifolia (Nees & Meyen) Parodi | A. Hayden 62 | 05 Sep 1935 | United States of America | Iowa | Clay Co. Lake Twp. Sec.… | — | 1740402 |
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| Muhlenbergia asperifolia (Nees & Meyen) Parodi | A. Hayden 63 | 08 Aug 1935 | United States of America | Iowa | Clay Co. Lake Twp. Sec.… | — | 1740407 |
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| Muhlenbergia sylvatica Torr. & A.Gray | A. Hayden 614 | 19 Sep 1936 | United States of America | Iowa | Peterson Twp., Sec. 33; floodplain… | — | 1759479 |
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| Muhlenbergia mexicana (L.) Trin. | A. Hayden 10973 | 3 Oct 1938 | United States of America | Iowa | Wapello Co. Washington Twp.; low… | — | 1608581 |
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| Panicum capillare L. | A. Hayden 8222 | 08 Sep 1941 | United States of America | Iowa | Palo Alto Co. In an… | — | 1766828 |
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| Panicum virgatum L. | A. Hayden 123 | 16 Aug 1935 | United States of America | Iowa | Clay Co. 4 mi. E.… | — | 1770069 |
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| Paspalum setaceum var. muhlenbergii (Nash) D.J.Banks | A. Hayden 8188 | 7 Sep 1940 | United States of America | Iowa | Davis Co. Lick Creek, sandy… | — | 1762097 |
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| Paspalum setaceum var. stramineum (Nash) D.J.Banks | A. Hayden 8015 | 13 Sep 1937 | United States of America | Iowa | Allamakee Co. Union City Twp.,… | — | 1762571 |
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| Phalaris arundinacea L. | A. Hayden 9256 | 7 Jul 1939 | United States of America | Iowa | North margin of Mud Lake… | — | 1744898 |
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| Phalaris arundinacea L. | A. Hayden 65 | June 21, 1935 | United States of America | Iowa | Clay Co. Lake Twp., Sec.… | — | 1744905 |
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| Poa compressa L. | A. Hayden 5027 | 13 Sep 1937 | United States of America | Iowa | Allamakee Co. Union City Twp.,… | — | 1789518 |
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| Poa compressa L. | A. Hayden 19 | 07 Aug 1934 | United States of America | Iowa | Clay Co. Freeman Twp., Sec.… | — | 1789519 |
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| Poa compressa L. | A. Hayden 81 | 23 Aug 1935 | United States of America | Iowa | Clay Co. Freeman Twp., Sec.… | — | 1789520 |
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| Poa annua L. | A. Hayden 11299 | 07 Jun 1932 | United States of America | Iowa | Story Co. Washington Twp., Sec.4.… | — | 1784112 |
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| Poa nemoralis L. | A. Hayden 45 | 14 Aug 1934 | United States of America | Iowa | Clay Co. Freeman Twp. Along… | — | 1792080 |
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| Poa nemoralis L. | A. Hayden 126 | 20 Jun 1935 | United States of America | Iowa | Palo Alto Co. Lost Island… | — | 1792081 |
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| Poa palustris L. | A. Hayden 79 | 14 Jul 1935 | United States of America | Iowa | Clay Co. Dewey's Pasture, 8… | — | 1792994 |
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| Poa palustris L. | A. Hayden 21 | 17 Jul 1934 | United States of America | Iowa | Clay Co. N. W. Mud… | — | 1792995 |
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| Poa palustris L. | A. Hayden 7088 | 21 Jun 1937 | United States of America | Iowa | Lyon Co. Sioux Twp. In… | — | 1792996 |
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| Poa palustris L. | A. Hayden 20 | 17 Jul 1934 | United States of America | Iowa | Palo Alto Co. Lost Island… | — | 1792997 |
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| Poa palustris L. | A. Hayden 82 | 15 Jul 1935 | United States of America | Iowa | Palo Alto Co. Freeman Twp.,… | — | 1792998 |
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| Poa palustris L. | A. Hayden 83 | 18 Jul 1935 | United States of America | Iowa | Palo Alto Co. Lost Island… | — | 1792999 |
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| Poa palustris L. | A. Hayden 98 | 24 Jul 1935 | United States of America | Iowa | Clay Co. Freeman Twp., Sec.… | — | 1793001 |
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| Poa pratensis L. | A. Hayden 645 | 23 Jun 1936 | United States of America | Iowa | Clay Co. Lake Twp. Margin… | — | 1793722 |
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| Lolium arundinaceum (Schreb.) Darbysh. | A. Hayden 8125 | 24 Jun 1941 | United States of America | Iowa | Palo Alto Co. Highland Twp.;… | — | 1812923 |
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| Symphyotrichum x amethystinum (Nutt.) G.L.Nesom | A. Hayden 11133 | 14 Sep 1936 | United States of America | Iowa | Clay Co. Lake Twp. Sec.… | — | 1831897 |
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| Symphyotrichum boreale (Torr. & A.Gray) Á.Löve & D.Löve | A. Hayden 3111 | 09 Sep 1943 | United States of America | Iowa | Clay Co. Dewey's Pasture near… | — | 1832693 |
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| Symphyotrichum ciliatum (Ledeb.) G.L.Nesom | A. Hayden 11073 | 15 Sep 1936 | United States of America | Iowa | Clay Co. Lake Twp., Sec.… | — | 1826253 |
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| Symphyotrichum drummondii (Lindl.) G.L.Nesom | A. Hayden 11103 | 01 Oct 1937 | United States of America | Iowa | Davis Co. Hill Culture Experimental… | — | 1846038 |
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| Symphyotrichum drummondii (Lindl.) G.L.Nesom | A. Hayden 11098 | 18 Sep 1936 | United States of America | Iowa | Clay Co. Peterson Twp. Sec.… | — | 1846200 |
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| Symphyotrichum drummondii (Lindl.) G.L.Nesom | A. Hayden 11102 | 18 Sep 1936 | United States of America | Iowa | Clay Co. Above the Little… | — | 1846278 |
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| Symphyotrichum drummondii (Lindl.) G.L.Nesom | A. Hayden 11097 | 10 Oct 1936 | United States of America | Iowa | Wright Co. Belmond Twp., sec.… | — | 1846299 |
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| Symphyotrichum drummondii (Lindl.) G.L.Nesom | A. Hayden 11101 | 16 Sep 1936 | United States of America | Iowa | Clay Co. Above banks of… | — | 1846322 |
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| Symphyotrichum ericoides (L.) G.L.Nesom | A. Hayden 8949 | 15 Sep 1941 | United States of America | Iowa | Clay Co. Dewey's Pasture 7… | — | 1847099 |
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| Symphyotrichum prenanthoides (Muhl. ex Willd.) G.L.Nesom | A. Hayden 11082 | 15 Oct 1938 | United States of America | Iowa | Boone Co. Cass Twp. Sec.… | — | 1854895 |
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| Symphyotrichum sericeum (Vent.) G.L.Nesom | A. Hayden 11201 | 13 Sep 1932 | United States of America | Iowa | Fayette Co. Five mi. S… | — | 1868953 |
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| Bidens cernua L. | A. Hayden 10867 | 08 Sep 1936 | United States of America | Iowa | Palo Alto Co. Lost Island… | — | 1925710 |
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| Bidens tripartita L. | A. Hayden 10864 | 30 Aug 1936 | United States of America | Iowa | clay Co. Around pond and… | — | 1925976 |
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| Bidens frondosa L. | A. Hayden 10877 | 11 Sep 1936 | United States of America | Iowa | Palo Alto Co. Lost Island… | — | 1909588 |
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| Bidens frondosa L. | A. Hayden 10870 | 18 Sep 1938 | United States of America | Iowa | Palo Alto Co. Highland Twp.,… | — | 1909589 |
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| Bidens vulgata Greene | A. Hayden 10876 | 08 Sep 1936 | United States of America | Iowa | Clay Co. Lost Island Twp.,… | — | 1910804 |
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| Cirsium discolor (Muhl. ex Willd.) Spreng. | A. Hayden 454 | 07 Aug 1933 | United States of America | Iowa | Story Co. Washington Twp., Sec.… | — | 2042659 |
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| Cirsium discolor (Muhl. ex Willd.) Spreng. | A. Hayden 10844 | 13 Aug 1938 | United States of America | Iowa | Clay Co. Sioux Twp., Sec… | — | 2051571 |
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| Erigeron philadelphicus L. | A. Hayden 10571 | 01 May 1936 | United States of America | Iowa | Clay Co. Freeman Township, Sec.… | — | 2093075 |
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| Erigeron philadelphicus L. | A. Hayden 5078 | 15 May 1937 | United States of America | Iowa | Clay Co. Gillett Grove Township,… | — | 2093076 |
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| Erigeron strigosus Muhl. ex Willd. var. strigosus | A. Hayden 9792 | 25 Jun 1939 | United States of America | Iowa | Davis Co. Lick Creek Twp.;… | — | 2096232 |
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| Erigeron strigosus Muhl. ex Willd. var. strigosus | A. Hayden 8785 | 03 Jul 1940 | United States of America | Iowa | Palo Alto Co. Two miles… | — | 2096476 |
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| Carex alopecoidea Tuck. | A. Hayden 670 | 27 Jun 1936 | United States of America | Iowa | Clay Co. Clay Co., Gillett's… | — | 2235370 |
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| Carex alopecoidea Tuck. | A. Hayden 670 | 27 Jun 1936 | United States of America | Iowa | Clay Co. Clay Co., Gillett's… | — | 2235378 |
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| Carex annectens (E.P.Bicknell) E.P.Bicknell | A. Hayden 3179 | 26 Jul 1943 | United States of America | Iowa | Palo Alto Co. On sandy… | — | 2236299 |
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| Carex bebbii (L.H.Bailey) Olney ex Fernald | A. Hayden 194 | 15 Jun 1935 | United States of America | Iowa | Palo Alto Co. Palo Alto… | — | 2250882 |
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| Carex bebbii (L.H.Bailey) Olney ex Fernald | A. Hayden 9266 | 20 Mar 1939 | United States of America | Iowa | Wapello Co. Wapello Co., Marion… | — | 2250885 |
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| Carex bicknellii Britton | A. Hayden 8045 | 21 Jun 1937 | United States of America | Iowa | Lyon Co. Lyon Co, Sioux… | — | 2251126 |
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| Carex bicknellii Britton | A. Hayden 192 | 28 May 1934 | United States of America | Iowa | Emmet Co. Emmet Co, Estherville… | — | 2251151 |
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| Carex blanda Dewey | A. Hayden 781A | 15 May 1936 | United States of America | Iowa | Kossuth Co. Irvington Twp. 1… | — | 2251240 |
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| Carex blanda Dewey | A. Hayden 8079A | 17 Jun 1937 | United States of America | Iowa | Clay Co. Peterson Twp., Wooded… | — | 2251297 |
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| Carex blanda Dewey | A. Hayden 185 | 01 Jun 1934 | United States of America | Iowa | Palo Alto Co. Lost Island… | — | 2251475 |
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| Carex brachyglossa Mack. | A. Hayden 9220 | 23 Jun 1939 | United States of America | Iowa | Wapello Co. Richland Twp. | — | 2251764 |
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| Carex brevior (Dewey) Mack. ex Lunell | A. Hayden 666 | 22 Jun 1936 | United States of America | Iowa | Palo Alto Co. Highland Twp.… | — | 2251840 |
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| Carex brevior (Dewey) Mack. ex Lunell | A. Hayden 8046 | 31 May 1936 | United States of America | Iowa | Palo Alto Co. Lost Island… | — | 2252186 |
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