Mimosoideae

Mimosoideae is a subfamily of the flowering plant family Fabaceae. Members of this family usually have flowers with small petals and many stamens. 
Some classification systems, for example the Cronquist system, treat Fabaceae in a narrow sense, raising Mimosoideae to the rank of family as Mimosaceae. The Angiosperm Phylogeny Group treats Fabaceae in the broad sense.