This name is a synonym of Dieteria bigelovii (A.Gray) D.R.Morgan & R.L.Hartm..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 694D3B97-B13A-48EA-BD45-43AD3EF10AAB) with original publication details: 97 1857.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:23133-2.
This name was in version 1 of The Plant List, record gcc-36492.