Soldanella experts - where are you?

[Adolf Ceska]

Apologies misusing this discussion list:

I got a specimen of Soldanella (accidental or intentional introduction)
from the Mt. Robson area, Rocky Mountains, British Columbia that may be
either Soldanella montana, or S. carpatica, or S. hungarica. I tried my
best, but without a reference herbarium material I don't trust my
identification. Who can help me?

Many thanks,

Adolf Ceska