Phaseolus amblyosepalus (Piper) C.V. Morton Phaseolus amblyosepalus (Piper) C.V. Morton, Contr. U.S. Natl. Herb. 29: 85. 1944 sec. Debouck, D.G. 2021≡Alepidocalyx amblyosepalus Piper, Contr. U.S. Natl. Herb. 22: 672. 1926 syn. sec. Freytag & Debouck 2002