⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2803521, with some changes.
This name is a synonym of Euonymus occidentalis Nutt. ex Torr..
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Man. Fl. Pl. Calif. 610 1925.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:99398-2.