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 and as an illegitimate name (record CF116C03-16A4-4374-B9F7-B84F1715784D) with original publication details: 98 1804.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:175473-1.
This name was in version 1 of The Plant List, record gcc-113744.