⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2706670, and has not been changed.
This name is a synonym of Ceanothus × lobbianus Hook..
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Proc. Calif. Acad. Sci. II, 1: 112 1888.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:50665-2.