This name is a synonym of Galium album subsp. prusense (K.Koch) Ehrend. & Krendl.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 86841) with original publication details: Linnaea 19: 31 1846.
This name was in version 1 of The Plant List, record kew-86841, and has not been changed.