Flannel Flower

I may be partial but a good Flannel Flower Actinotus helianthi beats Edelweiss Leontopodium nivale hands down.

It's a lot easier to see in the wild too, being a coastal plant growing in sandy heath around Sydney in abundance rather than an alpine that you have to go off the beaten track for and climb to two or three thousand metres up rocky limestone in Switzerland, France, and Austria. Although they superficially resemble one another they come from different botanical families (Flannel Flowers are related to carrots, Edelweiss are daisies).