Often spelt Spirea in common names or in some nursery product lines
Some 80 or more species of deciduous shrubs. Leaves alternate, simple, serrate, dentate, or lobed, usually with short petioles. Flowers white, pink, or reddish, in clusters, usually bisexual, 5 sepals, 4-5 petals, numerous stamens. Fruit usually has 2-10 oblong seeds. Native to Asia, Europe, North America, and Mexico.
Spiraea: from the Greek speiraia, a plant used for garlands.