This name is a synonym of Arrhenatherum elatius subsp. bulbosum (Willd.) Schübl. & G.Martens.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 395367) with original publication details: Handb. Skand. Fl. 51 1820.
This name was in version 1 of The Plant List, record kew-395367.