This name is a synonym of Agoseris heterophylla (Nutt.) Greene.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 50F52E71-5C9B-464E-9CCD-998BE23768EA) with original publication details: 402 1901.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:7251-2.
This name was in version 1 of The Plant List, record gcc-59817.