This name is a synonym of Lavatera triloba subsp. pallescens (Moris) Nyman.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Mém. Mus. Hist. Nat. 14: 344 1827.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:561224-1.
This name was in version 1 of The Plant List, record kew-2494382.