| Classification | Betulaceae: Alnus | 
| Barcode(s) | 00401513 | 
| Collector | L. S. Rose | 
| Collector number | 38307 | 
| Country | United States of America | 
| State | California | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California: Contra Costa County | 
| Locality | Marsh Creek, 6 mi. e. of Clayton | 
| Date Collected | 1938-10-28 | 
| Verbatim Elevation | 500 ft. | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/5b1992a2-482b-44f4-a5a7-ba857f1dcb52 | 
| Harvard University Herbaria Barcode | 00401513 | 
| Herbarium | GH | 
| Family | Betulaceae | 
| Determination |  Alnus rhombifolia Nuttall | 
| Determination Remarks |  [current name] | 
| Family | Betulaceae | 
| Determination |  Alnus rhombifolia Nuttall | 
| Determination Remarks |  [filed under] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |