| Classification | Asteraceae: Centaurea |
| Barcode(s) | 00985687 |
| Collector | B. T. Hamlin |
| Country | United States of America |
| State | Massachusetts |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Middlesex County: Medford |
| Locality | Boston Basin Ecoregion: Mystic River Watershed. Middlesex Fells Reservation, extreme northwest corner of Lawrence Woods at gate 11, GPS 42.4395N, 71.12228W |
| Date Collected | 2017-07-03 |
| Habitat | weedy open area, gentle west facing slope, full sun, poor soil |
| Container | Plants of Massachusetts |
| Remarks | several in 10 square m. Associates: Celastrus orbiculatus, Cynanchum louiseae, Toxicodendron radicans |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/332654a4-e2ad-4579-8561-28697de4bbe0 |
| Harvard University Herbaria Barcode | 00985687 |
| Herbarium | NEBC |
| Family | Asteraceae |
| Determination | Centaurea nigra Linnaeus |
| Determined by | Kittredge, Walter Tobey |
| Date Determined | 2017 |
| Determination Remarks | [filed under] [current name] |
| Family | Asteraceae |
| Determination | Centaurea phrygia Linnaeus |
| Determination Remarks | [label name] |
| Phenology | FlowerAndFruit |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
