Los géneros con mayor número de especies son "Astragalus" (2400 a 3270), "Indigofera" (700), "Crotalaria" (700), "Mirbelia sensu lato" (450), "Tephrosia" (350), "Desmodium" (300), "Aspalathus" (300), "Oxytropis" (300), "Adesmia" (240)," Trifolium" (240), "Rhynchosia" (230), "Lupinus" (200), "Aeschynomene" (160), "Hedysarum" (160), "Lathyrus" (160), "Vicia" (160), "Dalea" (150), "Eriosema" (150), "Lotononis" (150), "Millettia" (150), "Vigna" (150), Swartzia (140), "Daviesia" (135), "Lonchocarpus" (135), "Machaerium" (130), "Onobrychis" (130), Ormosia (130), "Lotus" (inc.