Displaying 26 - 31 out of 31 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | ||
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| Sagittaria rigida Pursh | D. Houghton s.n. | 1831 | United States of America | — | Lake Superior | — | 3730167 |
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| Amaranthus cannabinus (L.) J.D.Sauer | D. Houghton s.n. | 06 Aug 1838 | United States of America | Michigan | Kalamazoo | — | 3363661 |
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| Erigeron glabellus Nutt. var. glabellus | D. Houghton | Aug 1832 | Canada | Northwest Territories | St. Croix River | — | 2089852 |
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| Erigeron philadelphicus L. | D. Houghton | Jul 1832 | United States of America | Minnesota | low meadows at the junction… | — | 2093141 |
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| Erigeron philadelphicus L. | D. Houghton | 21 Jun 1838 | United States of America | Michigan | Washtenaw Co. near Whitmore's Lake | — | 2093187 |
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| Erigeron philadelphicus L. | D. Houghton | Jul 1832 | United States of America | — | Falls of Peckagama, Upper Mississippi | — | 2093304 |
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