This name is a synonym of Erigeron eatonii var. villosus (Cronquist) Cronquist.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record D4AEF21A-7CD3-41E4-8D0B-197B9A6C8784) with original publication details: Brittonia 6 172 1947.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:93732-2.
This name was in version 1 of The Plant List, record gcc-13701, and has not been changed.