Phaseolus nelsonii Maréchal, Mascherpa & Stainier Phaseolus nelsonii Maréchal, Mascherpa & Stainier in Taxon 27(2-3): 199. 1978 sec. Delgado-Salinas & al. 2006=Minkelersia pauciflora Rose in Contr. U.S. Natl. Herb. 5: 142. 1897 syn. sec. Téllez-Valdés 2009