Bistorta vacciniifolia ?

Bistorta vacciniifolia ?;

Bistorta affinis from Spiti valley.
Would appreciate if you upload leaf pictures too.
May be Bistorta vaccinifolia.
It is  suggested for information of all members that while uploading photograph of any plant, emphasis should be laid on showing all morphological parts instead of going for magnification of flowers only, which at most places diminishes the chances of easy & correct identification.

Bistorta species : 1 post by 1 author.
Could the members of this esteemed group help establish the ID these wonderful, high-altitude, monsoon flowers photographed at the Rohtang Pass, Himachal Pradesh. 
Bistorta vaccinifolia ??
The pink ones might be Persicaria vivipara, and the yellow flowers may belong to Potentilla sp. or Acomastylis elata
There is a difference of opinion on the pink flowers, Persicaria v. or a Bistorta species. So, what should I settle for?