Saxifraga can be annuals, biennials, evergreen or herbaceous perennials, mostly mat-forming in habit, with simple or palmately lobed leaves and starry or rounded flowers which may be solitary of in panicles or cymes
Irregulares section saxifrages are shade-tolerant, usually herbaceous perennials forming rosettes broad, palmately lobed leaves, with leafless stems bearing lax panicles of small flowers with short upper, and longer lower petals, in summer or autumn
S. stolonifera is an herbaceous perennial, semi-evergreen under glass, to 30cm, with long, slender red stolons bearing plantlets, rounded hairy dark green leaves to 10cm across, with silvery veins above, reddish beneath; small white flowers in panicles