| Classification | Brassicaceae: Streptanthus | 
| Barcode(s) | 00040577 | 
| Type Status | Isotype | 
| Collector | F. W. Hoffman & A. R. Kruckeberg | 
| Collector number | 2905 | 
| Country | United States of America | 
| State | California | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California: Sonoma County | 
| Locality | Exposed serpentine ridge near Contact Mine, east of Pine Flat, on the Sonoma-Lake county line, 3000 feet | 
| Date Collected | 1949-06-05 | 
| Elevation | 914 m | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/c4d5b063-af85-4905-824c-d16c44f8b71f | 
| Harvard University Herbaria Barcode | 00040577 | 
| Herbarium | GH | 
| Family | Brassicaceae | 
| Type Status |  Isotype | 
| Isotype of |  Streptanthus brachiatus F. W. Hoffman | 
| Verified by | D. W. Taylor | 
| Date Determined | 1994 | 
| Taxon Reference | (for  Streptanthus brachiatus F. W. Hoffman) MadroƱo 1952. 11: 230. | 
| Family | Brassicaceae | 
| Determination |  Streptanthus brachiatus F. W. Hoffman | 
| Determined by | I. A. Al-Shehbaz (MO) | 
| Date Determined | 2007-12-** | 
| Determination Remarks |  [current name] | 
| Family | Brassicaceae | 
| Determination |  Streptanthus brachiatus F. W. Hoffman | 
| Determined by | H. K. Sharsmith | 
| Date Determined | 1952-10-08 | 
| Annotation Text | This locality is near junction of Socrates Mine road with Pine Flat-Middletown road on ridge west of canyon of Big Sulphur Creek. The Napa-Lake county line is on the ridge east of the Canyon of Big Sulphur Creek. [H. K. Sharsmith just provided locality information] | 
| Family | Brassicaceae | 
| Determination |  Streptanthus brachiatus F. W. Hoffman | 
| Determination Remarks |  [label name] | 
| Sex | not determined | 
| Phenology | Flower | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |