Bulletin #2246, Maine Forage Facts: Birdsfoot trefoil (PDF for printing) By Jaime Garzon, Assistant Extension Professor and Dairy Forage Educator, University of Maine Cooperative Extension For information about UMaine Extension programs and resources, visit extension.umaine.edu.Find more of our publications and books at extension.umaine.edu/publications/. Birdsfoot trefoil Birdsfoot trefoil (Lotus corniculatus L.) is a low-growing perennial legume