This name is a synonym of Allium schoenoprasum subsp. gredense (Rivas Goday) Rivas Mart., Fern.Gonz.& Sánchez Mata.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 295666) with original publication details: Bol. Real Soc. Esp. Hist Nat. 24: 386 1924.
This name was in version 1 of The Plant List, record kew-295666, and has not been changed.