| Classification | Asteraceae: Lactuca | 
| Harvard University Herbaria Barcode(s) | 00833949 | 
| 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 | 
| Locality | Forest City | 
| Date Collected | 1941-08-05 [Aug. 5, 1941] | 
| Project | New England Vascular Plants TCN | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/dcc0520c-543f-446f-a069-2effbedcecfb | 
| Harvard University Herbaria Barcode | 00833949 | 
| Herbarium | NEBC | 
| Family | Asteraceae | 
| Determination | Lactuca canadensis Linnaeus | 
| Determination Remarks | [filed under] [current name] | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |