| Classification | Asteraceae: Lactuca | 
| Harvard University Herbaria Barcode(s) | 00833976 | 
| Collector | C. H. Knowlton | 
| Country | United States of America | 
| State | Maine | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Maine: Lincoln County: Newcastle | 
| Locality | Newcastle | 
| Date Collected | 1932-07-27 [July 27, 1932] | 
| Project | New England Vascular Plants TCN | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/568c4447-1cfa-4cf1-9632-8e3036284805 | 
| Harvard University Herbaria Barcode | 00833976 | 
| Herbarium | NEBC | 
| Family | Asteraceae | 
| Determination | Lactuca canadensis Linnaeus | 
| Determination Remarks | [filed under] [current name] | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |