| Classification | Orobanchaceae: Castilleja | 
| Harvard University Herbaria Barcode(s) | 01876903 | 
| Collector | F. W. Pennell | 
| Collector number | 25663 | 
| Country | United States of America | 
| State | California | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California: Placer County | 
| Locality | Route 49 north of American River, east of Auburn | 
| Date Collected | 1940-06-02 | 
| Verbatim Elevation | 1100 ft. | 
| Habitat | Red soil (serpentine), slope | 
| Container | Plants of California: Placer County | 
| Project | US and Canada - Mass Digitization | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/0d90b7a5-3892-4acd-aa97-d0e1b0b19278 | 
| Harvard University Herbaria Barcode | 01876903 | 
| Herbarium | GH | 
| Previous ownership | [Ex] The Academy of Natural Sciences of Philadelphia | 
| Family | Orobanchaceae | 
| Determination | Castilleja foliolosa Hooker & Arnott | 
| Determination Remarks | [filed under] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |