This name is a synonym of Euclidium syriacum (L.) R.Br..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50297949) with original publication details: Deutschl. Fl. (ed. 2) 2: 356 1812.
This name was in version 1 of The Plant List, record tro-50297949.