This name is a synonym of Gladiolus triphyllus (Sm.) Ker Gawl..
The record derives from iPlants
(data supplied on 2012-03-23)
which reports it as a synonym and as an invalid name (record 324014) with original publication details: Hort. Brit. ed. 2: 501 1830.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:441403-1.
This name was in version 1 of The Plant List, record kew-324014, and has not been changed.