Desmodium rotundifolium
Similar to Pueraria montana var. lobata (Willd.) Maesen & S. Almeida
Kudzu may be confused with other trifoliate legumes.
Dollar Leaf or Prostrate Tick Trefoil, Desmodium rotundifolium, is a native herbaceous perennial with stems up to 3 feet long, round leaflets, and purple flowers in dry woods.