Bird's-foot trefoil (Lotus corniculatus)

Another in the pea family - the bird's-foot trefoil can also be found along roadsides to control wind and water erosion as well as in fields as green chop, hay, and pasture. A great food for the Canada goose, deer, and elk. Pheasants and other birds use this as cover.
Introduced from Europe, this plant has naturalized across the US.