1	"Flowers actinomorphic; calyx and corolla inconspicuous, far exceeded by the stamens; petals valvate in bud; stamens usually many more than 10 (10 only in Prosopis)"	"Fabaceae subfam. Mimosoideae"
1	"Flower zygomorphic to some extent, at least in arrangement of stamens; calyx and corolla conspicuous, nearly as large as or longer than stamens; petals overlapping in bud; stamens 10 or fewer"	2
2	"Corolla not strongly zygomorphic; petals and sepals 5, free; stamens all free, quite exposed"	"Fabaceae subfam. Caesalpinioideae"
2	"Flower strongly zygomorphic; sepals fused to some extent, the lower 2 petals fused into a keel; stamens usually fused into a partial tube and usually enclosed by keel"	"Fabaceae subfam. Faboideae"