Displaying 1 - 50 out of 1286 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | ||
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| Acanthospermum australe (Loefl.) Kuntze | J. H. Barnhart 2044 | 27 Apr 1897 | United States of America | Florida | Alachua Co. | — | 1824504 |
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| Acer pseudoplatanus L. | J. H. Barnhart 931 | 17 May 1895 | United States of America | New York | Rockland Co. Roadside | — | 2487848 |
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| Acer rubrum L. | J. H. Barnhart s.n. | 16 Apr 1889 | United States of America | Connecticut | Middlesex Co. White Rocks | — | 2488037 |
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| Acer saccharum Marshall | J. H. Barnhart 248 | 30 Apr 1889 | United States of America | Connecticut | Middlesex Co. Woods | — | 2488938 |
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| Acer saccharum Marshall | J. H. Barnhart 1367 | 16 May 1896 | United States of America | New York | Westchester Co. | — | 2488958 |
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| Acer spicatum Lam. | J. H. Barnhart 2340 | 13 Aug 1897 | United States of America | New York | Greene Co. Big Hollow | — | 2490276 |
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| Achillea millefolium L. | J. H. Barnhart 2915 | 11 Jul 1901 | United States of America | Colorado | Conejos Co. Open hillside. Los… | — | 1825086 |
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| Aconitum columbianum Nutt. var. columbianum | J. H. Barnhart 200 | 13 Aug 1888 | United States of America | — | Yellowstone National Park | — | 2726974 |
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| Actaea pachypoda Elliott | J. H. Barnhart 2321 | 11 Aug 1897 | United States of America | New York | Greene Co. Big Hollow | — | 2727582 |
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| Actaea pachypoda Elliott | J. H. Barnhart 1682 | 27 Aug 1896 | United States of America | New York | Ulster Co. | — | 2727587 |
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| Actaea pachypoda Elliott | J. H. Barnhart 1632b | 08 Aug 1896 | United States of America | New Jersey | Bergen Co. | — | 2727662 |
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| Actaea pachypoda Elliott | J. H. Barnhart 1632a | 08 Aug 1896 | United States of America | New Jersey | Bergen Co. | — | 2727663 |
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| Actaea rubra (Aiton) Willd. | J. H. Barnhart 2317 | 10 Aug 1897 | United States of America | New York | Greene Co. Big Hollow | — | 2727982 |
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| Adiantum pedatum L. | J. H. Barnhart 308 | 20 Jun 1889 | United States of America | Connecticut | Tobey's Hollow, Middletown | — | 3483306 |
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| Aeschynomene viscidula Michx. | J. H. Barnhart 2183 | 28 Apr 1897 - 03 May 1897 | United States of America | Florida | Putnam Co. | — | 2505254 |
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| Aeschynomene viscidula Michx. | J. H. Barnhart 2762 | 08 May 1899 - 13 May 1899 | United States of America | Florida | Hillsborough Co. Sutherland | — | 2505276 |
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| Aesculus hippocastanum L. | J. H. Barnhart 265 | 15 May 1889 | United States of America | Connecticut | Middlesex Co. | — | 2497685 |
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| Aethusa cynapium L. | J. H. Barnhart 1598b | 04 Aug 1896 | United States of America | New York | Livingston Co. near Sing Sing | — | 3365410 |
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| Aethusa cynapium L. | J. H. Barnhart 1598a | 04 Aug 1896 | United States of America | New York | Livingston Co. near Sing Sing | — | 3365434 |
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| Agalinis acuta Pennell | J. H. Barnhart 2814 | 30 Aug 1899 | United States of America | New York | Suffolk Co. | — | 28827 |
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| Agalinis maritima (Raf.) Raf. | J. H. Barnhart 594 | 05 Aug 1891 | United States of America | New York | Suffolk Co. | — | 3250544 |
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| Agalinis maritima (Raf.) Raf. | J. H. Barnhart 1158 | 22 Aug 1895 | United States of America | New York | Suffolk Co. | — | 3250545 |
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| Agalinis purpurea (L.) Pennell var. purpurea | J. H. Barnhart 879 | 01 Sep 1894 | United States of America | New Jersey | near Arlington | — | 3251251 |
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| Agalinis purpurea (L.) Pennell var. purpurea | J. H. Barnhart 2808 | 26 Aug 1899 | United States of America | New York | Suffolk Co. | — | 3251275 |
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| Agalinis purpurea (L.) Pennell var. purpurea | J. H. Barnhart 2840 | 18 Aug 1900 | United States of America | New York | Suffolk Co. near First House | — | 3251276 |
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| Agalinis purpurea (L.) Pennell var. purpurea | J. H. Barnhart 1126 | 21 Aug 1895 | United States of America | New York | Suffolk Co. | — | 3251277 |
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| Agalinis purpurea var. parviflora (Benth.) B.Boivin | J. H. Barnhart 1159 | 22 Aug 1895 | United States of America | New York | Suffolk Co. | — | 3251580 |
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| Agalinis tenuifolia (Vahl) Raf. var. tenuifolia | J. H. Barnhart 85 | 10 Sep 1887 | United States of America | Connecticut | Fairfield Co. Sugar Hollow | — | 3251931 |
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| Agalinis tenuifolia (Vahl) Raf. var. tenuifolia | J. H. Barnhart 1683 | 27 Aug 1896 | United States of America | New York | Ulster Co. | — | 3251957 |
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| Agalinis tenuifolia (Vahl) Raf. var. tenuifolia | J. H. Barnhart 1175 | 05 Sep 1895 | United States of America | New York | Orange Co. Orange Lake | — | 3251959 |
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| Agrimonia gryposepala Wallr. | J. H. Barnhart 2361 | 14 Aug 1897 | United States of America | New York | Greene Co. Big Hollow | — | 2718116 |
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| Agrimonia gryposepala Wallr. | J. H. Barnhart 1507 | 22 Jul 1896 | United States of America | New York | Westchester Co. North Tarrytown | — | 2718238 |
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| Agrimonia striata Michx. | J. H. Barnhart 2397 | 25 Aug 1897 | United States of America | New York | Greene Co. | — | 2719110 |
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| Agrostis hyemalis (Walter) Britton, Sterns & Poggenb. | J. H. Barnhart s.n. | 24 Jun 1889 | United States of America | Connecticut | Middletown | — | 1555601 |
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| Agrostis perennans (Walter) Tuck. | J. H. Barnhart 1746 | 01 Sep 1896 | United States of America | New York | Marlborough. | — | 1556850 |
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| Ailanthus altissima (Mill.) Swingle | J. H. Barnhart 1646a | 21 Aug 1896 | United States of America | New York | Westchester Co. | — | 785334 |
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| Ailanthus altissima (Mill.) Swingle | J. H. Barnhart 1646b | 21 Aug 1896 | United States of America | New York | North Tarrytown [=Sleepy Hollow]. | — | 785404 |
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| Ajuga reptans L. | J. H. Barnhart 986 | 25 May 1895 | United States of America | New York | Westchester Co. North Tarrytown | — | 3032261 |
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| Alliaria petiolata (M.Bieb.) Cavara & Grande | J. H. Barnhart 615 | 30 May 1894 | United States of America | New York | Oswego Co. Near R. R.… | — | 785769 |
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| Alliaria petiolata (M.Bieb.) Cavara & Grande | J. H. Barnhart 1087 | 06 Aug 1895 | United States of America | New York | Oswego Co. | — | 785785 |
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| Alliaria petiolata (M.Bieb.) Cavara & Grande | J. H. Barnhart 957 | 23 May 1895 | United States of America | New York | Oswego Co. | — | 785788 |
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| Allium cernuum Roth | J. H. Barnhart 501 | 12 Jul 1890 | United States of America | Colorado | Ute Pass | — | 3762365 |
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| Alnus incana subsp. rugosa (Du Roi) R.T.Clausen | J. H. Barnhart s.n. | 04 Sep 1896 | United States of America | New York | Ulster Co. Modena. Thicket. | — | 2471781 |
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| Alnus serrulata (Aiton) Willd. | J. H. Barnhart s.n. | 08 Sep 1896 | United States of America | New York | Ulster Co. Marlborough [=Marlboro]. | — | 2472885 |
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| Ambrosia artemisiifolia L. | J. H. Barnhart 1237 | 25 Sep 1895 | United States of America | New York | Westchester Co. | — | 1877781 |
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| Ambrosia artemisiifolia L. | J. H. Barnhart 1684 | 27 Aug 1896 | United States of America | New York | Ulster Co. | — | 1877821 |
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| Amelanchier prunifolia Greene | J. H. Barnhart 1726 | 29 Aug 1896 | United States of America | New York | Ulster Co. | — | 2709748 |
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| Amorpha fruticosa L. | J. H. Barnhart 574 | 13 Jun 1891 | United States of America | Connecticut | River Road, east of Middletown | — | 2559084 |
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| Amorpha fruticosa L. | J. H. Barnhart 574 | 13 Jun 1891 | United States of America | Connecticut | Middlesex Co. | — | 2559086 |
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| Amorpha fruticosa L. | J. H. Barnhart 1023 | 24 Jun 1894 | United States of America | New York | Putnam Co. | — | 2559097 |
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