This name is a synonym of Erigeron eatonii var. plantagineus (Greene) Cronquist.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 2751B667-B788-49CD-B6E3-D8E1668BD5E3) with original publication details: Brittonia 6(2): 173 1947.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:93729-2.
This name was in version 1 of The Plant List, record gcc-67646, and has not been changed.