Sigmoidotropis elegans (Piper) A. Delgado in Amer. J. Bot. 98(10): 1711. 2011 sec. Delgado-Salinas & al. 2011
- ≡Phaseolus elegans Piper in Contr. U.S. Natl. Herb. 22(9): 674. 1926 syn. sec. ???
- =Vigna elegans (Piper) Maréchal, Mascherpa & Stainier in Taxon 27(2-3): 201. 1978 syn. sec. ???