This name is a synonym of Erigeron blakei Cabrera.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record E8713500-FFBE-4713-9972-4D4D925E8520) with original publication details: 307 1846.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:94149-2.
This name was in version 1 of The Plant List, record gcc-41741.