This name is a synonym of Dianthus sylvestris subsp. longibracteatus (Maire) Greuter & Burdet.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Trab. Mus. Ci. Nat., Ser. Bot. 11: 22 1917.
This name was in version 1 of The Plant List, record kew-2764920, and has not been changed.