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 D816BF30-69E6-459A-99E5-FCFDF234696F) with original publication details: 660 1841.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:202284-1.
This name was in version 1 of The Plant List, record gcc-143944.