This name is a synonym of Solidago latissimifolia Mill..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 6D0E7366-D57E-4D87-8B0E-970FC75C0DCB).
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 Aster latissimifolius in version 1 of The Plant List.