saxifrage
sax.i.frage \'sak-s*-frij, -.fra-j\ n [ME, fr. MF, fr. LL saxifraga, fr. L, fem. of saxifragus breaking r]ocks, fr. saxum rock + frangere to break; akin to OE sx knife, sagu saw - more at SAW, BREAK : any of a genus (Saxifraga of the family Saxifragaceae, the saxifra ge family) of mostly perennial herbs with showy pentamerous flowers and often with basal tufted leaves