This name is a synonym of Dieteria canescens (Pursh) Nutt..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 5FC7CEFD-BD79-4D8D-AE5B-9380BA0A4EA7) with original publication details: Contr. U. S. Natl. Herb. 25 563 1925.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:23660-2.
This name was in version 1 of The Plant List, record gcc-97285.