This name is a synonym of Epilobium subdentatum (Meyen) Lievens & Hoch.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 23202668) with original publication details: Brit. Fl. Gard. II, t. 183 1833.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:613629-1.
This name was in version 1 of The Plant List, record tro-23202668.