Saxifraga: from the Latin saxum, "a rock," and frango, "to break," and referring to the fact that by growing in rock crevices they appear to break rocks

[Wikipedia] Range, Habitat, UK Protected Species: Saxifraga cespitosa, the tufted alpine saxifrage[1] or tufted saxifrage, is a flower common to many arctic heights. It appears further south in mountainous areas of the Alps, Norway, Scotland, Wales, Iceland, Siberia, western North America and Greenland. The tufted saxifrage grows on ledges and gravelly places. It became a protected species in the UK in 1975 under the Conservation of Wild Creatures and Wild Plants Act.[2] (link added by Mary Ann Machi)