This name is a synonym of Malva arborea (L.) Webb & Berthel..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Malvenfam. 42 1787.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:558999-1.
This name was in version 1 of The Plant List, record kew-2641515.