| Name | Ephedra californica S. Watson |
| Authorship | S. Watson |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Ephedra Linnaeus |
| GUID | urn:lsid:ipni.org:names:383367-1 |
| Citation | 1879 Proc. Amer. Acad. Arts 14: 300 |
| Holdings | 165 Specimens held in the Harvard University Herbaria identified as Ephedra californica S. Watson |
| Identification made in | [no date] (152), 1939 (9), 2002 (4) |