Erythrostemon robinsonianus (Britton & Rose) E. Gagnon & G.P. Lewis, PhytoKeys 71: 126. 2016 sec. Gagnon & al. 2016
- ≡Poincianella robinsoniana Britton & Rose, N. Amer. Fl. 23(5): 330. 1930 syn. sec. Gagnon & G.P. Lewis 2016
- ≡Caesalpinia robinsoniana (Britton & Rose) G.P. Lewis, Caesalpinia; Revis. Poincianella--Erytrostemon Group: 42. 1998 syn. sec. Gagnon & G.P. Lewis 2016
- =Caesalpinia mexicana var. pubescens B.L. Rob. & Greenm., Proc. Amer. Acad. Arts 29: 386. 1894 syn. sec. Gagnon & G.P. Lewis 2016