This name is a synonym of Sphaeralcea bonariensis (Cav.) Griseb..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 19600454) with original publication details: Diss. 69, t.22 f. 1 .
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:561565-1.
This name was in version 1 of The Plant List, record tro-19600454.