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 7E84C2E4-30CD-48F7-BC45-0D6F25E0729E).
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:1047075-2.
This name was in version 1 of The Plant List, record gcc-7218.