| Classification | Asteraceae: Ageratina |
| Harvard University Herbaria Barcode(s) | 00954619 |
| Collector | L. A. Standley, K. Frost, Patricia Swain, D. McGrary & M. P. Charpentier |
| Country | United States of America |
| State | Massachusetts |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Middlesex County: Pepperell |
| Locality | Gulf Brook Conservation Land, 0.25 mi N of Heald Road along Jeff Smith Trail. 2.4 mi NNW of junction Rt 111 and Rt 113, west of Gulf Brook |
| Georeference | 42° 40' 35.43" N, 71° 38' 2.13" W |
| Date Collected | 2017-08-12 |
| Elevation | 122 m |
| Verbatim Elevation | 400 ft. |
| Habitat | Rock outcrop |
| Project | New England Vascular Plants TCN |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/bea80836-6a6d-4a23-90f4-a325597ae9a6 |
| Harvard University Herbaria Barcode | 00954619 |
| Herbarium | NEBC |
| 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 |
