This name is a synonym of Stipa majalis Klokov.
The record derives from WCSP which reports it as a synonym (record 445339) with original publication details: Byull. Moskovsk. Obshch. Isp. Prir., Otd. Biol. n.s., 91(1): 121 1986.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:952341-1.