Description
Unarmed shrubs.
Leaves simple.
Stipules absent.
Flowers in terminal or axillary umbels, corymbs, or panicles.
Sepals valvate or slightly imbricate.
Petals white or pink.
Stamens 15-many.
Seed with membranous testa, endosperm thin or absent.
Distribution
About 100 species, North temperate. Many species cultivated as ornamentals.