This name is a synonym of Chaiturus marrubiastrum (L.) Ehrh. ex Rchb..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 460145) with original publication details: Linnaea 17: 297 1844.
This name record (from WCSP) was not included in version 1 of The Plant List. It is possible the same name was included from a different data source, to check this you can search for Leonurus marrubiastrum in version 1 of The Plant List.