| Classification | Rhamnaceae: Rhamnus |
| Classification 1 | Rhamnaceae: Frangula |
| Barcode(s) | 00425930 |
| Collector | W. L. Jepson |
| Collector number | 8975 |
| Country | United States of America |
| State | California |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California: Colusa County |
| Locality | On grade over ridge to Indian Valley. Hills west of Bear Valley. |
| Date Collected | 1920-05-23 |
| Verbatim Elevation | ca. 2500 ft. |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/3cc08c17-262c-4c74-8c9b-970fe88f5629 |
| Harvard University Herbaria Barcode | 00425930 |
| Herbarium | GH |
| Family | Rhamnaceae |
| Determination | Rhamnus californica var. crassifolia Jepson |
| Determined by | Wolf, Carl Brandt |
| Date Determined | 1938-08-01 |
| Determination Remarks | [current name] |
| Family | Rhamnaceae |
| Determination | Frangula californica subsp. crassifolia (Jepson) Kartesz & Gandhi |
| Determination Remarks | [filed under] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
