vicia dasycarpa - smooth vetch

This plant has trailing or climbing stems that are up to 3 feet long.  The stems are smooth or appressed-hairy.  The leaves are alternate, pinnate, and have 5 to 10 pairs of leaflets that are .5 to 1 inch long.  The leaves are narrowly oblong or lanceolate linear.  The flowers are blue=purple and are up to .8" long.  There are typically 5 to 15 flowers in one-sided racemes.

This flower was introduced from Europe and has escaped to roadsides, fields, and waste places throughout most of the United States. 

Smooth vetch is considered frequent and flowers from May to August.