Word Study
saxifrage
CIDE DICTIONARY
saxifrage, n. [L. saxifraga, from saxifragus stone-breaking; saxum rock + frangere to break: cf. F. saxifrage. See Fracture, and cf. Sassafras, Saxon.].
Any plant of the genus Saxifraga , mostly perennial herbs growing in crevices of rocks in mountainous regions. [1913 Webster]
OXFORD DICTIONARY
saxifrage, n. any plant of the genus Saxifraga, growing on rocky or stony ground and usu. bearing small white, yellow, or red flowers.
Etymology
ME f. OF saxifrage or LL saxifraga (herba) f. L saxum rock + frangere break
For further exploring for "saxifrage" in Webster Dictionary Online