1	"Flower radial; calyx, corolla generally inconspicuous; petals free or fused, lobes not overlapped in bud; stamens 10 or generally many, often long-exserted; leaf 2-pinnate (simple in alien <i>Acacia</i>); (Mimosoideae)"	"Fabaceae Group 1"
1	"Flower generally bilateral, less often +- radial; calyx, corolla generally conspicuous; petals overlapped in bud, free or 2 lowermost +- fused; stamens 10 (or 5, 6, 7, 9), generally +- included; leaf 1- or 2-pinnate (less often simple or palmately compound)"	2
2	"Flower +- radial to +- bilateral; sepals fused only at very base; leaf 1- or 2-pinnate; (Caesalpinioideae excluding <i>Cercis</i>)"	"Fabaceae Group 2"
2	"Flower bilateral; sepals free to +- entirely fused; leaf simple, 1-pinnate, or palmate"	3
3	"Upper petal (banner) inside lateral ones (wings) in bud; stamens free; leaf simple, reniform or bi-lobed ; (Caesalpinioideae)"	"Cercis {Cercis occidentalis}"
3	"Upper petal (banner) outside lateral ones (wings) in bud (only banner present in <i>Amorpha</i>, petal position not evident in some <i>Dalea</i>); stamens generally with all or 9 filaments fused (free in <i>Thermopsis</i>, <i>Pickeringia</i>, <i>Calia</i>); leaf 1-pinnate (leaflets often 3), some palmately compound (especially <i>Lupinus</i>) or simple; (Papilionoideae)"	"Fabaceae Group 3"