| Classification | Onagraceae: Calylophus | 
| Harvard University Herbaria Barcode(s) | 01624673 | 
| Collector | U. T. Waterfall | 
| Collector number | 5494 | 
| Country | United States of America | 
| State | Texas | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Texas: Ward County | 
| Locality | 2 miles west of Pyote Air Base | 
| Date Collected | 1943-08-06 | 
| Habitat | On gypsum flats | 
| Container | Plants of Southwestern Texas | 
| Project | US and Canada - Mass Digitization | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/b328466c-37f2-4028-9db5-94c9b6709ab7 | 
| Harvard University Herbaria Barcode | 01624673 | 
| Herbarium | GH | 
| Family | Onagraceae | 
| Determination | Calylophus hartwegii subsp. filifolius (Eastwood) Towner & P. H. Raven | 
| Determined by | Towner, Howard Frost | 
| Date Determined | 1970 | 
| Determination Remarks | [filed under] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |