This name is a synonym of Galium lucidum subsp. corrudifolium (Vill.) Bonnier.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 86127) with original publication details: Prosp. Hist. Pl. Dauphiné 20 1779.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:749767-1.
This name was in version 1 of The Plant List, record kew-86127.