spirea
spi.rea or spi.raea \spi--'re--*\ n [NL Spiraea, genus name, fr. L, a plant, fr. Gk speiraia] 1: any of a genus (Spiraea) of shrubs of the rose family with small p erfect white or pink flowers in dense racemes, corymbs, cymes, or panicles 2: any of several garden plants resembling spireas; esp : a shrub ( Astilbe japonica) of the saxifrage family