Senna pentagonia var. pentagonia(Mill.) H.S. Irwin & Barneby, Mem. New York Bot. Gard. 35: 255. 1982A
Bibliografía
A.Irwin, H. S. & Barneby, R. C. 1982: Vol. 35. Part 1. The american Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. – Mem. New York Bot. Gard.