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: Fl. Germ. Excurs. 683 1832.
This name was in version 1 of The Plant List, record kew-2871185.