| Name | Rhamnus californica var. crassifolia Jepson |
| Authorship | Jepson |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Rhamnus californica Eschscholtz |
| GUID | urn:lsid:ipni.org:names:311640-2 |
| Citation | 1925 Man. Fl. Pl. Calif. 615 |
| Holdings | 9 Specimens held in the Harvard University Herbaria identified as Rhamnus californica var. crassifolia Jepson |
| Identification made in | [no date] (7), 1938 (1), 1941 (1) |