I was looking for an appropriate topic and found it. By the way, excellent pics Dima. What I noticed, these were not high mountain locations. What I want to share are my 30 years old memories from a nearby location in Poland , but high in the mountains. No photos though.
Being a student this was one of my many trips to remote and difficult-to-reach Bieszczady mountains. Look at the map- this is the south-eastern 'corner' of Poland. Very wild and depopulated since 1947. The soil there is an extreme clay, no conifers in the woods, low tree line, high mountain meadows with very high grass and generally extreamly lush vegetation. Altogether atypical for our part of the world. Max altitude 1350 m asl.
Being there in April when the snow was melting high in the mountains I noticed thousands of snowdrops growing through the surface of the mountain path and also around through the previous year grass. I mean over the tree line. I hope my memory is correct as recently looking through the net I couldn't confirm my past observations.
G. nivalis certainly is a lowland plant. What about high mountains populations? Are they common? Are they different? Are they represented in cultivation?
If not - it might be wise to enrich the genetic pool from atypical source.