(Tiarella)
Tiarella, foamflower, is a genus of wildflower and garden plants found in Asia and North America. They belong to the Saxifrage family (Saxifragaceae). Some species are:Tiarella cordifolia (heartleaved foamflower) Tiarella polyphylla (foamflower), Eastern Asia Tiarella trifoliata (laceflower, threeleaved foamflower), northwestern North America Many hybrids are known and cultivated.