| Classification | Asteraceae: Centaurea | 
| Harvard University Herbaria Barcode(s) | 02172506 | 
| Collector | C. H. Knowlton | 
| Country | Canada | 
| State | Nova Scotia | 
| Geography | North America: North America (CA, US, MX) (Region): Canada: Nova Scotia | 
| Locality | [data not captured] | 
| Date Collected | 1925-08-03 | 
| Project | US and Canada - Mass Digitization | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/9e0b45fa-285f-43d5-a3e3-3b68f732e951 | 
| Harvard University Herbaria Barcode | 02172506 | 
| Herbarium | GH | 
| Family | Asteraceae | 
| Determination | Centaurea nigra Linnaeus | 
| Determination Remarks | [filed under] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |