(N/A) $\rightarrow$ This family was earlier called Papilionoideae,a subfamily of the family Leguminosae.
$\rightarrow$ Vegetative Characters: Plants are trees,shrubs,or herbs; roots have root nodules.
$\rightarrow$ Stem: Erect or climber.
$\rightarrow$ Leaves: Alternate,pinnately compound or simple; leaf base is pulvinate; stipulate; venation is reticulate.
$\rightarrow$ Floral Characters:
$\rightarrow$ Inflorescence: Racemose.
$\rightarrow$ Flower: Bisexual,zygomorphic.
$\rightarrow$ Calyx: Five sepals,gamosepalous; imbricate aestivation.
$\rightarrow$ Corolla: Five petals,polypetalous,papilionaceous,consisting of a posterior standard,two lateral wings,and two anterior petals forming a keel (enclosing stamens and pistil); vexillary aestivation.
$\rightarrow$ Androecium: Ten stamens,diadelphous,anther dithecous.
$\rightarrow$ Gynoecium: Ovary superior,monocarpellary,unilocular with many ovules,single style.
$\rightarrow$ Fruit: Legume; seed: one to many,non-endospermic.