Senna uniflora (Mill.) H.S. Irwin & Barneby Senna uniflora (Mill.) H.S. Irwin & Barneby, Mem. New York Bot. Gard. 35: 258. 1982 sec. Irwin & Barneby 1982≡Cassia uniflora Mill., Gard. Dict., ed. 8: Cassia no. 5. 1768 syn. sec. Irwin & Barneby 1982