This name is a synonym of Erigeron asperugineus (D.C.Eaton) A.Gray.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 6860232C-A79C-44B6-A874-1F2DF0732173) with original publication details: 142 1871.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:180704-1.
This name was in version 1 of The Plant List, record gcc-16880, and has not been changed.