| Classification | Asteraceae: Lactuca | 
| Harvard University Herbaria Barcode(s) | 01834635 | 
| Collector | O. M. Clark | 
| Collector number | 11860 | 
| Country | United States of America | 
| State | Arizona | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Arizona: Coconino County | 
| Locality | Oak Creek Canyon, south of Flagstaff | 
| Date Collected | 1944-06-18 | 
| Habitat | Open pine woods | 
| Container | Plants of Arizona | 
| Project | US and Canada - Mass Digitization | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/042d47f5-83fe-4ebf-8b23-87efd9cf9c86 | 
| Harvard University Herbaria Barcode | 01834635 | 
| Herbarium | GH | 
| Previous ownership | [ex] Bebb Herbarium of the University of Oklahoma | 
| Family | Asteraceae | 
| Determination | Lactuca graminifolia var. arizonica McVaugh | 
| Determination Remarks | [filed under] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |