⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2706658, and has not been changed.
This name is a synonym of Ceanothus cuneatus subsp. rigidus .
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Leafl. W. Bot. 10: 350 1966.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:50657-2
.