This name is a synonym of Nasturtium microphyllum (Boenn. ex Rchb.) Rchb..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Rep. Univ. Inst. Appl. Sci., Reykjavik, Dept. Agric. Ser. B 3: 109 1948.
This name was in version 1 of The Plant List, record kew-2417324.