⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2814086, and has not been changed.
This name is a synonym of Frangula californica subsp. occidentalis .
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Trudy Bot. Inst. Akad. Nauk S.S.S.R., Ser. 1, Fl. Sist. Vyssh. Rast. 8: 270 1949.
Full publication details for this name can be found in IPNI: