This name is a synonym of Ageratum conyzoides (L.) L..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 8F823FB9-C176-450C-9148-69A4077DF48F) with original publication details: 54 1783.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:175529-1.
This name was in version 1 of The Plant List, record gcc-78665.