| Classification | Rhamnaceae: Frangula |
| Classification 1 | Rhamnaceae: Rhamnus |
| Harvard University Herbaria Barcode(s) | 00425973 |
| Collector | H. L. Mason |
| Collector number | 7109 |
| Country | United States of America |
| State | California |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California: Humboldt County |
| Locality | East slope of Southfork Mountains, on road from Arcata to Weaverville |
| Date Collected | 1932-07-21 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/bdba924d-0c6f-43bc-86db-0ec6e497f8f6 |
| Harvard University Herbaria Barcode | 00425973 |
| Herbarium | GH |
| Family | Rhamnaceae |
| Determination | Frangula californica subsp. occidentalis (Howell ex Greene) Kartesz & Gandhi |
| Determination Remarks | [is filed under name] |
| Family | Rhamnaceae |
| Determination | Rhamnus californica subsp. occidentalis (Howell ex Greene) C. B. Wolf |
| Determination Remarks | [0] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
