| Classification | Ephedraceae: Ephedra | 
| Harvard University Herbaria Barcode(s) | 00933568 | 
| Collector | E. B. Payson & L. E. B. Payson | 
| Collector number | 3833 | 
| Country | United States of America | 
| State | Colorado | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Colorado | 
| Locality | Ridgway | 
| Date Collected | 1924-06-17 | 
| Habitat | Shale hills. | 
| Container | Plants of Colorado | 
| Project | US and Canada - Mass Digitization | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/cd9fbe0d-abd4-402d-8ee6-fbac0fa2654f | 
| Harvard University Herbaria Barcode | 00933568 | 
| Herbarium | GH | 
| Previous ownership | [ex] The Rocky Mountain Herbarium | 
| Family | Ephedraceae | 
| Determination | Ephedra torreyana S. Watson | 
| Determined by | Cutler, Hugh Carson | 
| Date Determined | 1939 | 
| Determination Remarks | [filed under] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |