Nissolia laxior (B.L. Rob.) Rose Nissolia laxior (B.L. Rob.) Rose in Contr. U.S. Natl. Herb. 5(4): 162. 1899 sec. Téllez-Valdés 2009≡Nissolia confertiflora var. laxior B.L. Rob. in Proc. Amer. Acad. Arts 29: 315. 1894 syn. sec. Téllez-Valdés 2009