This name is a synonym of Persicaria alpina (All.) H.Gross.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26001385) with original publication details: Great Basin Naturalist 28(3): 154 1968.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:206051-2.
This name was in version 1 of The Plant List, record tro-26001385.