| Classification | Asteraceae: Eupatorium |
| Harvard University Herbaria Barcode(s) | 00589611 |
| Type Status | Holotype |
| Collector | J. (J. J. J.) Rousseau |
| Collector number | 21300 |
| Country | Canada |
| State | Quebec Province |
| Geography | North America: North America (CA, US, MX) (Region): Canada: Quebec Province |
| Locality | Berthier-en-bas |
| Date Collected | 1925-08-13 |
| Habitat | rivages estuariens |
| Container | Plantes de l'estuaire du Saint-Laurent |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/72fadc43-79ac-4d56-89c1-62f85c5e1be0 |
| Harvard University Herbaria Barcode | 00589611 |
| Herbarium | GH |
| Family | Asteraceae |
| Type Status | Holotype |
| Holotype of | Eupatorium perfoliatum var. colpophilum Fernald & Griscom |
| Verified by | Tucker, Arthur O. |
| Date Determined | 1985 |
| Determination Remarks | [filed under] |
| Taxon Reference | (for Eupatorium perfoliatum var. colpophilum Fernald & Griscom) Rhodora 1935. 37(437): 182. |
| Family | Asteraceae |
| Determination | Eupatorium perfoliatum var. colpophilum Fernald & Griscom |
| Determined by | [annotation on sheet] |
| Determination Remarks | [current name] |
| Family | Asteraceae |
| Determination | Eupatorium perfoliatum Linnaeus |
| Determination Remarks | [label name] |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
