This name is a synonym of Symphyotrichum falcatum var. commutatum (Torr. & A.Gray) G.L.Nesom.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 1C88B49C-61A9-4C5E-9560-203B59426B51) with original publication details: Bull. Torrey Bot. Club 28 504 1901.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:23275-2.
This name was in version 1 of The Plant List, record gcc-17440.