streambank bird's-foot trefoil

Lotus oblongifolius is a species of legume known by the common name streambank bird's-foot trefoil or meadow lotus. It is native to western North America from Oregon to northern Mexico, where it grows in moist to wet areas in several types of habitat. It is a spreading or upright perennial herb lined with leaves each made up of 3 elongated oval leaflets each up to 2.5 centimeters long. The inflorescence bears several yellow and white flowers...