Senna fruticosa (Mill.) H.S. Irwin & Barneby, Mem. New York Bot. Gard. 35: 121. 1982 sec. Irwin & Barneby 1982
- ≡Cassia fruticosa Mill., Gard. Dict., ed. 8: Cassia no. 10. 1768 syn. sec. Irwin & Barneby 1982
- ≡Chamaefistula fruticosa (Mill.) Pittier, Trab. Mus. Com. Venez. 3: 152. 1928 syn. sec. Irwin & Barneby 1982
- =Cassia densiflora M. Martens & Galeotti, Bull. Acad. Roy. Sci. Brux. 10(2): 304. 1843 syn. sec. Irwin & Barneby 1982
- =Cassia berlandieri Benth., Trans. Linn. Soc. London 27: 520. 1871 syn. sec. Irwin & Barneby 1982
- =Cassia axillaris Sessé & Moc., Fl. Mexic., ed. 2: 101. 1894 syn. sec. Irwin & Barneby 1982
- =Chamaefistula berlandieri (Benth.) Britton & Rose, N. Amer. Fl. 23(4): 234. 1930 syn. sec. Irwin & Barneby 1982
- =Chamaefistula densiflora (M. Martens & Galeotti) Britton & Rose, N. Amer. Fl. 23(4): 235. 1930 syn. sec. Irwin & Barneby 1982
- =Chamaefistula ignota Britton & Rose, N. Amer. Fl. 23(4): 233. 1930 syn. sec. Irwin & Barneby 1982
- =Chamaefistula sinaloana Britton & Rose, N. Amer. Fl. 23(4): 234. 1930 syn. sec. Irwin & Barneby 1982