Phaseolus leptostachyus Benth. var. leptostachyus Phaseolus leptostachyus Benth. var. leptostachyus in Comm. Legum. Gen.: 72-73. 1837 sec. Freytag & Debouck 2002=Phaseolus fulvus Brandegee in Univ. Calif. Publ. Bot. 4: 87. 1910 syn. sec. Téllez-Valdés 2009