| Classification | Asteraceae: Ageratina |
| Harvard University Herbaria Barcode(s) | 01924471 |
| Collector | S. A. Thompson with [data not captured] |
| Collector number | 2145 |
| Country | United States of America |
| State | Maryland |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Maryland: Garrett County |
| Locality | 2.1 mi SE of Pennsylvania/Maryland border on US 40: Savage River State Forest. |
| Date Collected | 1984-10-07 |
| Habitat | Area of clear cutting with herbaceous regrowth; Fagus, Acer, Quercus in drier areas. Clear-cut area. |
| Container | Plants of Maryland |
| Project | US and Canada - Mass Digitization |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/e8412f43-9cde-408d-8d2f-58557ef4a2b7 |
| Harvard University Herbaria Barcode | 01924471 |
| Herbarium | GH |
| Previous ownership | [ex] Herbarium, Carnegie Museum (CM), Pittsburgh, PA. |
| Family | Asteraceae |
| Determination | Ageratina altissima (Linnaeus) R. M. King & H. Robinson |
| Determination Remarks | [is filed under name] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
