This name is a synonym of Cosmos caudatus Kunth.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 620A9117-816B-48D6-80E9-9247B452E921) with original publication details: s.p. 1842.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:184791-1.
This name was in version 1 of The Plant List, record gcc-96735.