This name is a synonym of Coreopsis mutica DC..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record D8C6BB27-B517-4F61-AD2A-98ACB8F2CF39) with original publication details: Brittonia 33 551 1981.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:65873-2.
This name was in version 1 of The Plant List, record gcc-59715.