⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2834958, with some changes.
This name is a synonym of Caulanthus heterophyllus (Nutt.) Payson.
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Bot. Jahrb. Syst. 66: 98 1933.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:114757-2.