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 C9E116AA-C257-4B31-85D5-E8EA21708B5B) with original publication details: 792 1815.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:927610-1.
This name was in version 1 of The Plant List, record gcc-134963.