| Classification | Betulaceae: Alnus |
| Harvard University Herbaria Barcode(s) | 00401330 |
| Collector | H. L. Mason |
| Collector number | 12172 |
| Country | United States of America |
| State | California |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California: El Dorado County |
| Locality | north side of Luther Pass, one mile west of Grass Lake Meadow |
| Date Collected | 1939-07-18 |
| Verbatim Elevation | 7700 feet |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/796368c1-a496-4de6-825f-0c3c83ec10ec |
| Harvard University Herbaria Barcode | 00401330 |
| Herbarium | A |
| Family | Betulaceae |
| Determination | Alnus incana subsp. tenuifolia (Nuttall) Breitung |
| Determination Remarks | [is filed under name] |
| Family | Betulaceae |
| Determination | Alnus tenuifolia Nuttall |
| Determination Remarks | [0] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
