This name is a synonym of Ageratina glauca (Sch.Bip. ex Klatt) R.M.King & H.Rob..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 725D98A8-BEFE-48CE-98FF-4B1E71136A8D) with original publication details: 89 1884.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:205975-1.
This name was in version 1 of The Plant List, record gcc-40541.