| Classification | Onagraceae: Clarkia |
| Harvard University Herbaria Barcode(s) | 01673780 |
| Collector | C. L. Hitchcock |
| Collector number | 31 |
| Country | United States of America |
| State | California |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California: Amador County |
| Locality | 5 miles northeast of Jackson |
| Date Collected | 1928-06-12 |
| Verbatim Elevation | 430 M. |
| Habitat | in moist soil at edge of stream. |
| Container | Distribution of Onagraceae |
| Project | US and Canada - Mass Digitization |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/f66168d1-9238-42e7-b04c-ebfadd760e14 |
| Harvard University Herbaria Barcode | 01673780 |
| Herbarium | GH |
| Previous ownership | [Ex] Pomona College Herbarium |
| Family | Onagraceae |
| Determination | Clarkia williamsonii (Durand & Hilgard) F. H. Lewis & M. E. Lewis |
| Determined by | Lewis, Margaret Ensign & Lewis, Frank Harlan |
| Date Determined | 1951 |
| Determination Remarks | [is filed under name] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
