This name is a synonym of Agnorhiza ovata (Torr. & A.Gray ex Torr. & A.Gray) W.A.Weber.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record A835021E-844C-43CB-B3C6-514279E6C324).
This name record (from TICA) was not included in version 1 of The Plant List. It is possible the same name was included from a different data source, to check this you can search for Wyethia ovata in version 1 of The Plant List.