| Classification | Onagraceae: Clarkia |
| Harvard University Herbaria Barcode(s) | 01673765 |
| Collector | C. B. Wolf |
| Collector number | 5131 |
| Country | United States of America |
| State | California |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California: Amador County |
| Locality | W. slope Sierra Nevada, field at little red schoolhouse 3 mi. below pine grove on rd. to Jackson |
| Date Collected | 1933-06-30 |
| Verbatim Elevation | 2000 +/- |
| Habitat | Lower Arid Transition. Sun, clay soil |
| Frequency | abundant |
| Project | US and Canada - Mass Digitization |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/e2355c2e-51cd-47d9-b018-adbdaf19b83a |
| Harvard University Herbaria Barcode | 01673765 |
| Herbarium | GH |
| Previous ownership | [Ex] Rancho Santa Ana Botanic Garden of the Native Plants of California |
| Family | Onagraceae |
| Determination | Clarkia williamsonii (Durand & Hilgard) F. H. Lewis & M. E. Lewis |
| Determination Remarks | [is filed under name] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
