This name is a synonym of Calendula incana subsp. maritima (Guss.) Ohle.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record B100D213-3E1F-4B8C-97E0-A6D3E5EB6625) with original publication details: 274 1976.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:876709-1.
This name was in version 1 of The Plant List, record gcc-61468.