This name is a synonym of Erigeron thunbergii A.Gray.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 9705A566-9802-4E22-910A-FDD16B5BECF7) with original publication details: 311 1982.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:920545-1.
This name was in version 1 of The Plant List, record gcc-72417.