This name is a synonym of Parastrephia quadrangularis (Meyen) Cabrera.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record F7AF0332-96DE-4F49-8C40-2F8BF0FF3868) with original publication details: 460 1834.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:183658-1.
This name was in version 1 of The Plant List, record gcc-25737.