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 425B2F48-B30A-4B21-9104-18887B13F4C3) with original publication details: Fl. Ned. Ind. 2 (1856) 23 1856.
This name was in version 1 of The Plant List, record gcc-73428.