| Classification | Rhamnaceae: Frangula |
| Classification 1 | Rhamnaceae: Rhamnus |
| Harvard University Herbaria Barcode(s) | 00425932 |
| Collector | C. H. Merriam |
| Country | United States of America |
| State | California |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California: Colusa County |
| Locality | Cook Springs |
| Date Collected | 1907-07-23 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/6597498a-f4d1-480c-a4f8-941eb8da4c3a |
| Harvard University Herbaria Barcode | 00425932 |
| Herbarium | A |
| Family | Rhamnaceae |
| Determination | Frangula californica subsp. crassifolia (Jepson) Kartesz & Gandhi |
| Determination Remarks | [is filed under name] |
| Family | Rhamnaceae |
| Determination | Rhamnus californica var. crassifolia Jepson |
| Determined by | Schreiber, Beryl Olive [later Mrs. H. J. Jesperson] |
| Date Determined | 1941-03-** |
| Determination Remarks | [0] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
