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 25171519-46F3-45BC-AC51-F04D0A00485E) with original publication details: Icon. 4: 33. 1797. 33 1797.
This name was in version 1 of The Plant List, record gcc-138307.