I’m a little unsure as to where to go here, this will either be Euchiton or argyrotegium. To be honest I don’t see any good matches in the former but I’m unsure about the lack of Woollu hairs on the surface of the Cauline leaves
Happy with this, I've always thought of E.japonicus as a lower altitude species but checking the spatial data it seems to be well recorded in the alps as well.