Phaseolus leptophyllus G. Don Phaseolus leptophyllus G. Don, Gen. Hist. 2: 350. 1832 sec. Freytag & Debouck 2002=Phaseolus revolutus Piper in Contr. U.S. Natl. Herb. 22: 697-698. 1926 syn. sec. Téllez-Valdés 2009