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: Ann. Bot. (Oxford) n.s., 10: 12 1946.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:287641-1.
This name was in version 1 of The Plant List, record kew-2380850.