| Classification | Papaveraceae: Argemone | 
| Harvard University Herbaria Barcode(s) | 01856630 | 
| Collector | G. B. Ownbey & F. Ownbey | 
| Collector number | 1793 | 
| Country | United States of America | 
| State | Arizona | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Arizona: Pinal County | 
| Locality | 7.3 miles s.e. of Picacho. | 
| Date Collected | 1953-09-02 | 
| Habitat | In highway ditch, broad, flat valley. | 
| Project | US and Canada - Mass Digitization | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/84511042-ab7d-4781-aaf9-8f694fb920ef | 
| Harvard University Herbaria Barcode | 01856630 | 
| Herbarium | GH | 
| Previous ownership | [ex] Herbarium of the University of Minnesota Minneapolis | 
| Family | Papaveraceae | 
| Determination | Argemone pleiacantha subsp. ambigua G. B. Ownbey | 
| Determined by | Schwarzbach, Andrea E. | 
| Date Determined | 1996-09-** | 
| Determination Remarks | [filed under] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |