| Classification | Polypodiaceae |
| Harvard University Herbaria Barcode(s) | 00021744 |
| Collector | J. M. Bigelow |
| Country | United States of America |
| State | California |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California |
| Locality | Grass Valley |
| Date Collected | 1853 - 1854 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/202a0878-ce43-4f84-a1f1-5060dae525ba |
| Harvard University Herbaria Barcode | 00021744 |
| Herbarium | GH |
| Family | Polypodiaceae |
| Determination | Onychium densum Brackenridge |
| Determination Remarks | Arev: Not a type [is filed under name] [is label name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
