This name is a synonym of Encelia virginensis var. actonii (Elmer) B.L.Turner.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record EA5D8FE0-3F8D-456F-AD9A-56CD3D70BA2D) with original publication details: Bot. Gaz. 39: 47 (-48). 1905 1905.
This name was in version 1 of The Plant List, record gcc-46844, and has not been changed.