This name is a synonym of Dyssodia papposa (Vent.) Hitchc..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym and as an illegitimate name (record 682EE1D5-6668-4B7C-B708-6A5FBB13A250) with original publication details: 2125 1803.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:185750-1.
This name was in version 1 of The Plant List, record gcc-78948.