Cuscuta campestris, with the common names field dodder, golden dodder, large-seeded alfalfa dodder, yellow dodder and prairie dodder, is a parasitic plant which belongs to the family Convolvulaceae. It was formerly classified in the family Cuscutaceae. It is native to central North America. It is a parasite of a wide range of herbaceous plants. It is a pest of lucerne and other legumes. It has become a widespread weed in many countries. It is known as 'golden dodder' in Australia. Remarkably, the seeds of the plant have been found to become dispersed by waterfowl in significant numbers.