Displaying 1 - 50 out of 2099 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Acer pensylvanicum L. | K. M. Wiegand s.n. | May 23-09 | United States of America | New Hampshire | Cheshire Co. Mount Monadnock | — |
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| Acer platanoides L. | K. M. Wiegand s.n. | 02 May 1908 - 29 May 1908 | United States of America | Massachusetts | Norfolk Co. Fls.- So. Aqueduct… | — |
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| Acer pseudoplatanus L. | K. M. Wiegand s.n. | 27 May 1909 - 18 Sep 1909 | United States of America | Massachusetts | Norfolk Co. Co.v.[?] garden. Campus… | — |
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| Acer rubrum L. | K. M. Wiegand s.n. | 20 Apr 1908 - 29 May 1908 | United States of America | Massachusetts | Fr. Cross St. Wellesley. Fls.… | — |
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| Acer rubrum var. trilobum Torr. & A.Gray ex K.Koch | K. M. Wiegand s.n. | 20 Apr 1908 - 29 May 1908 | United States of America | Massachusetts | Norfolk Co. Fls. Simpson meadow;… | — |
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| Acer saccharum Marshall | K. M. Wiegand 406 | 19 Jul 1909 | United States of America | Maine | Washington Co. Roadside near Ox… | — |
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| Acer saccharum Marshall | K. M. Wiegand s.n. | 02 May 1908 - 29 May 1908 | United States of America | Massachusetts | Norfolk Co. Washington St. | — |
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| Acer spicatum Lam. | K. M. Wiegand 407 | 27 Jul 1909 | United States of America | Maine | Washington Co. Big Hill, Pembroke | — |
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| Achillea millefolium L. | K. M. Wiegand 26 | 30 Jul 1909 | United States of America | Maine | Washington Co. Roadside e. of… | — |
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| Achillea millefolium L. | K. M. Wiegand 25 | 13 Jul 1909 | United States of America | Maine | Washington Co. West Pembroke | — |
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| Achillea millefolium L. | K. M. Wiegand 26 | 30 Jul 1909 | United States of America | Maine | Washington Co. Roadside E. of… | — |
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| Achillea millefolium L. | K. M. Wiegand s.n. | Sept 26 - 07 | United States of America | Massachusetts | Norfolk Co. Worcester St. west… | — |
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| Achillea millefolium L. | K. M. Wiegand s.n. | June 13-10 | United States of America | Massachusetts | Norfolk Co. Worcester St. near… | — |
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| Actaea pachypoda Elliott | K. M. Wiegand s.n. | 23 Aug 1912 | United States of America | Massachusetts | wooded roadside, School S. Wayland | — |
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| Actaea rubra (Aiton) Willd. | K. M. Wiegand 336 | 9 Aug 1909 | United States of America | Maine | Aroostook Co. River bank. Fort… | — |
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| Actaea rubra (Aiton) Willd. | K. M. Wiegand s.n. | 4 Aug 1912 | United States of America | Massachusetts | Norfolk Co. Woods. N.E. slope… | — |
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| Actaea rubra (Aiton) Willd. | K. M. Wiegand s.n. | 14 May 1910 | United States of America | Massachusetts | Woods. Hundreds. Wellesley. | — |
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| Aesculus hippocastanum L. | K. M. Wiegand s.n. | May 2-09 | United States of America | Massachusetts | Norfolk Co. East lodge, Campus | — |
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| Aesculus hippocastanum L. | K. M. Wiegand s.n. | May 26-09 | United States of America | Massachusetts | Norfolk Co. Near East Lodge,… | — |
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| Agalinis purpurea var. parviflora (Benth.) B.Boivin | K. M. Wiegand 818 | 23 Aug 1909 | United States of America | Maine | Sagadahoc Co. Winnegance Creek | — |
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| Agastache nepetoides (L.) Kuntze | K. M. Wiegand 2058 | 21 Sep 1911 | United States of America | Massachusetts | Suffolk Co. Oak Island | — |
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| Agrimonia gryposepala Wallr. | K. M. Wiegand 472 | 9 Aug 1909 | United States of America | Maine | Aroostook Co. Valley of the… | — |
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| Agrimonia gryposepala Wallr. | K. M. Wiegand s.n. | 4 Aug 1912 | United States of America | Massachusetts | N.E. slope of Maugus Hill.… | — |
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| Agrimonia gryposepala Wallr. | K. M. Wiegand s.n. | 10 Aug 1912 | United States of America | Massachusetts | Norfolk Co. roadside thicket Clay… | — |
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| Agrimonia striata Michx. | K. M. Wiegand 474 | 13 Aug 1909 | United States of America | Maine | Aroostook Co. Valley of the… | — |
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| Agrimonia striata Michx. | K. M. Wiegand s.n. | 23 Jul 1908 | United States of America | Massachusetts | Norfolk Co. Roadside between Islington… | — |
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| Agrimonia striata Michx. | K. M. Wiegand 473 | 10 Aug 1909 | United States of America | Maine | Aroostook Co. Valley of the… | — |
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| Agrostis hyemalis (Walter) Britton, Sterns & Poggenb. | K. M. Wiegand 779 | 20 Jul 1909 | United States of America | Maine | Washington Co. South of Ayer's… | — |
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| Agrostis hyemalis (Walter) Britton, Sterns & Poggenb. | K. M. Wiegand s.n. | July 1 - '08 | United States of America | Massachusetts | Damp meadowland, Worcester St East… | — |
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| Agrostis perennans (Walter) Tuck. | K. M. Wiegand s.n. | Oct. 9 - '07 | United States of America | Massachusetts | Cemetery so. end of Cochituate… | — |
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| Agrostis perennans (Walter) Tuck. | K. M. Wiegand s.n. | Sept. 24-'07 | United States of America | Massachusetts | Wellesley. | — |
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| Agrostis perennans (Walter) Tuck. | K. M. Wiegand s.n. | Sept. 18-10 | United States of America | Massachusetts | Strand of Farm Pond. | — |
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| Alectoria sarmentosa (Ach.) Ach. subsp. sarmentosa | M. L. Fernald | K. M. Wiegand | E. B. Bartram | H. T. Darlington 6590 | 05 Jul 1911 | Canada | Newfoundland and Labrador | Newfoundland. Valley of Exploits River.… | — | ||||
| Alnus | K. M. Wiegand s.n. | May 23-09 | United States of America | New Hampshire | Cheshire Co. Little Monadnock Mts.… | — |
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| Alnus incana (L.) Moench | K. M. Wiegand s.n. | 10 Apr 1909 - 20 Sep 1909 | United States of America | Massachusetts | N. aqueduct at Cranberry Bog. | — |
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| Alnus incana (L.) Moench | K. M. Wiegand s.n. | 10 Apr 1909 - 20 Sep 1909 | United States of America | Massachusetts | Norfolk Co. N. aqueduct near… | — |
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| Alnus incana subsp. rugosa (Du Roi) R.T.Clausen | K. M. Wiegand s.n. | 09 Apr 1909 - 18 Sep 1909 | United States of America | Massachusetts | Norfolk Co. Shore of Lake… | — |
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| Alnus incana subsp. rugosa (Du Roi) R.T.Clausen | K. M. Wiegand s.n. | 09 Apr 1909 - 18 Sep 1909 | United States of America | Massachusetts | Norfolk Co. Lake shore, Tupelo… | — |
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| Alnus mollis Fernald | K. M. Wiegand 394 | 16 Jul 1909 | United States of America | Maine | Washington Co. Valley of the… | — |
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| Alopecurus geniculatus L. | K. M. Wiegand s.n. | July 15 - '08 | United States of America | Massachusetts | Border of [port]. NW. of… | — |
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| Alopecurus geniculatus L. | K. M. Wiegand 776 | 06 Jul 1909 | United States of America | Maine | Washington Co. Pembroke. | — |
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| Alopecurus pratensis L. | K. M. Wiegand 27501 | 08 Aug 1925 | Canada | Newfoundland and Labrador | Border of path, Little Quirpon. | — |
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| Alopecurus pratensis L. | K. M. Wiegand s.n. | May 30-08 | United States of America | Massachusetts | Between Framingham Center and So.… | — |
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| Alopecurus pratensis L. | K. M. Wiegand s.n. | May 15-'09 | United States of America | Massachusetts | Field on Baker Estate: Grove… | — |
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| Alyssum alyssoides (L.) L. | K. M. Wiegand s.n. | 25 May 1904 | United States of America | New York | Tompkins Co. Fiske Grounds [=possibly… | — |
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| Alyssum alyssoides (L.) L. | K. M. Wiegand s.n. | 02 Jun 1909 | United States of America | Massachusetts | Norfolk Co. Near Observatory, campus… | — |
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| Alyssum alyssoides (L.) L. | K. M. Wiegand s.n. | 02 Jun 1909 | United States of America | Massachusetts | Norfolk Co. Board walk at… | — |
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| Ambrosia artemisiifolia L. | K. M. Wiegand 14974 | 19 Sep 1922 | United States of America | New York | Tompkins Co. Cayuga Heights, Upland… | — |
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| Ambrosia artemisiifolia L. | K. M. Wiegand s.n. | Sept 18 -'07 | United States of America | Massachusetts | Norfolk Co. Campus near Tupelo… | — |
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| Ambrosia trifida L. | K. M. Wiegand s.n. | 10 Aug 1895 | United States of America | New York | Tompkins Co. Renwick Park | — |
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