This name is a synonym of Impatiens platysepala Y.L. Chen.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50302059) with original publication details: Bull. Bot. Res., Harbin 23(2): 141 2003.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:70029751-1.
This name was in version 1 of The Plant List, record tro-50302059, and has not been changed.