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 50060596) with original publication details: Reliq. Haenk. 2(2): 121 1835.
This name was in version 1 of The Plant List, record tro-50060596.