There are many variations but mostly they are characterized by the fruit, a pod, known as a Legume.

The largest subfamily has a flower made up of five petals; a ‘banner’ petal, two wing petals, and two petals partially fused together to form a boat-shaped keel. The keel encloses the stamens, which are not visible externally.

They often have with pinnate leaves
Lupine - Lupinus sp.Yellow Sweetclover - Meliotus indicusYellow Sweetclover - Meliotus indicusRose Clover - Trifolium hirtumRose Clover - Trifolium hirtumRose Clover - Trifolium hirtumWinter Vetch - Vicia villosaWinter Vetch - Vicia villosaChick Lupine - Lupinus microcarpusChick Lupine - Lupinus microcarpusChick Lupine - Lupinus microcarpusChick Lupine - Lupinus microcarpusArroyo Lupine - Lupinus succulentusArroyo Lupine - Lupinus succulentusLupine - Lupinus sp.LupineArroyo Lupine - Lupinus succulentusChaparral Pea - Lathyrus vestitusWinter Vetch - Vicia villosaDeerweed