| Classification | Onagraceae: Calylophus | 
| Harvard University Herbaria Barcode(s) | 01624693 | 
| Collector | E. B. Payson | 
| Collector number | 339 | 
| Country | United States of America | 
| State | Colorado | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Colorado: Montrose County: Naturita (Colorado) | 
| Locality | [no additional data] | 
| Date Collected | 1914-05-22 | 
| Verbatim Elevation | 6,000 ft. | 
| Habitat | Rocky hills. | 
| Container | Plants of Southwestern Colorado | 
| Project | US and Canada - Mass Digitization | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/5e8c662a-c2b2-4650-8379-a57105d07644 | 
| Harvard University Herbaria Barcode | 01624693 | 
| Herbarium | GH | 
| Previous ownership | From The Rocky Mountain Herbarium. University of Wyoming, Laramie. | 
| Family | Onagraceae | 
| Determination | Calylophus hartwegii subsp. lavandulifolius (A. Gray & Torrey) Towner & P. H. Raven | 
| Determination Remarks | [filed under] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |