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 (record AAD631EB-1362-49EA-A4DF-AB49FB03E29A) with original publication details: 29 1816.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:86432-2.
This name was in version 1 of The Plant List, record gcc-107967.