The Fabaceae, as the third-largest plant family in the world, contain most of the diversity of the Fabales, the other families making up a comparatively small portion of the order's diversity. Research in the order is largely focused on the Fabaceae, due in part to its great biological diversity, and to its importance as food plants.
Family: Fabaceae (Legume, Pea, or Bean Family)
Genera: Bauhinia, Caesalpinia, Delonix, Cassia,. Senna, Tamarindus
Genera: Abrus, Aeschynomene, Afgekia, Alysicarpus, Arachis, Butea, Cajanus, Calopogonium, Canavalia, Centrosema, Clitoria, Crotalaria, Cruddasia, Desmodium, Dunbaria, Dysolobium, Erythrina, Flemingia, Gliricidia, Indigofera, Lathyrus, Macroptilium, Millettia, Mucuna, Psophocarpus, Pterocarpus, Pueraria, Sesbania, Sophora, Stylosanthes, Tephrosia, Uraria, Vigna, Zornia
Genera: Acacia, Albizia, Leucaena, Mimosa, Neptunia, Xylia