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 E4DC3000-FC9F-48CF-8AE2-1EDF4DAA0D71) with original publication details: 389 1854.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:175572-1.
This name was in version 1 of The Plant List, record gcc-16694.