| Classification | Onagraceae: Clarkia | 
| Harvard University Herbaria Barcode(s) | 00367693 | 
| Collector | L. Constance, J. L. Morrison, G. S. Lyon & H. L. Mason | 
| Collector number | 2593 | 
| Country | United States of America | 
| State | California | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California: Merced County | 
| Locality | North Fork of Los Banos Creek, 0.25 mile northwest of north peak of Twin Peaks. | 
| Date Collected | 1940-05-05 | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/0048c60d-28f0-4ebc-9a22-f20fbec44c50 | 
| Harvard University Herbaria Barcode | 00367693 | 
| Herbarium | GH | 
| Family | Onagraceae | 
| Determination | Clarkia breweri (A. Gray) Greene | 
| Determined by | Lewis, Frank Harlan & Lewis, Margaret Ensign | 
| Date Determined | 1951 | 
| Determination Remarks | [current name] | 
| Family | Onagraceae | 
| Determination | Clarkia breweri (A. Gray) Greene | 
| Determination Remarks | [filed under] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |