Strophostyles leiosperma (Torr. & A. Gray) Piper in Contr. U.S. Natl. Herb. 22(9): 668. 1926 sec. Riley-Hulting & al. 2004
- ≡Phaseolus leiospermus Torr. & A. Gray, Fl. N. Amer. (Torr. & A. Gray) 1(2): 280. 1838 syn. sec. ???
- =Phaseolus pauciflorus Benth. in Comm. Legum. Gen.: 76. 1837 syn. sec. ???