This name is a synonym of Symphyotrichum eatonii (A.Gray) G.L.Nesom.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 613DD9BF-0323-4966-B499-D14650980CB3) with original publication details: 1910.
This name was in version 1 of The Plant List, record gcc-124690, and has not been changed.