This name is a synonym of Coreopsis leavenworthii Torr. & A.Gray.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 454D3694-A887-4C1C-A7BC-3F9D43301601) with original publication details: Bot. Gaz. 94 592 1933.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:65838-2.
This name was in version 1 of The Plant List, record gcc-34322.