| Classification | Asteraceae: Ageratina |
| Classification 1 | Asteraceae: Eupatorium |
| Barcode(s) | 00872751 |
| Collector | H. D. Thoreau |
| Country | United States of America |
| State | Vermont |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Vermont: Windham County: Brattleboro |
| Locality | Brattleboro |
| Date Collected | [[Sept. 6, 1856]] |
| Remarks | [“Sept. 6. . . A. M. – Walked down the railroad about a mile, returning partly by river-bank. . . Eupatorium ageratoides, white snake-root, in rather low ground or on banks along riverside, apparently in prime.” Journal 9: 62-65. 1856] |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/6d769910-e022-473b-8022-e1d01651e301 |
| Harvard University Herbaria Barcode | 00872751 |
| Herbarium | GH |
| Family | Asteraceae |
| Determination | Ageratina altissima (Linnaeus) R. M. King & H. Robinson |
| Determined by | Kittredge, Walter Tobey |
| Date Determined | 2017 |
| Determination Remarks | [current name] |
| Annotation Text | var. altissima |
| Family | Asteraceae |
| Determination | Eupatorium ageratoides Linnaeus f. |
| Determination Remarks | [label name] |
| Subcollection | Thoreau Herbarium |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
