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] China, Japan, Korea Native; Habitat, Uses: The plant is native to China, Japan and Korea. But it is widespread in much of the temperate regions of Eurasia and in North America. In their homeland they thrive in forests, in bushes, in meadows, even on rocks, at altitudes of 400 to 4500 meters. It is now used as an ornamental plant worldwide. Uses The foliage is occasionally used fresh or cooked in Japanese cuisine. It was also used as an herbal remedy in classical Japan. It contains quercetin which has been shown to have anti-cancer activity in vitro. (link added by Mary Ann Machi)