The bilaterally symmetrical flowers have 5 petals. The lowest 2 are joined to form the "keel", the side pair are "wings", and the upper petal is the "banner". The leaves are usually alternate and compound and have stipules. Tendrils are often present.

This is a large and agriculturally important family. Beans, peas, soybeans, lentils, peanuts, alfalfa and clover are examples. Gum arabic is obtained from the genus Acacia.

Tree This family contains trees.
Flower This family contains flowers.

Alfalfa Medicago sativa
Bean, Wild Phaseolus polystachios
Clover, Hop Trifolium agrarium
Clover, Least Hop/ Little Hop Clover Trifolium dubium
Clover, Rabbit-foot Trifolium arvense
Clover, Red Trifolium, pratense
Clover, Smaller Hop/ Low Hop Clover Trifolium procumbens
Clover, White Trifolium repens
Clover, White Sweet Melilotus alba
Clover, Yellow Sweet Melilotus officinalis
Hog-Peanut Amphicarpa bracteata
Lespedeza, Silky Lespedeza cuneata
Locust, BlackSpecies is a Tree Robina pseudo-acacia
Locust, HoneySpecies is a Tree Gleditsia triacanthos
Lupine, Wild Lupinus perennis
Pea, Everlasting Lathyrus latifolius
Senna, Wild Cassia hebecarpa
Tick trefoil, Dillen's Desmodium glabellum
Tick-Trefoil, Hoary Desmodium canescens
Tick-trefoil, large-bracted Desmodium cuspidatum
Tick-Trefoil, Panicled Desmodium paniculatum
Tick-Trefoil, Showy Desmodium canadense
Trefoil, Birdfoot Lotus corniculatus
Vetch, Cow/ Canada Pea/ Tufted Vetch Vicia cracca
Vetch, Crown Coronilla varia