This name is a synonym of Malva multiflora (Cav.) Soldano, Banfi & Galasso.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: J. Linn. Soc., Bot. 16: 377 1878.
This name was in version 1 of The Plant List, record kew-2873563.