Monographs Details: Senna pendula var. r.
Authors:Howard S. Irwin, Rupert C. Barneby
Authority: Irwin, Howard S. & Barneby, Rupert C. 1982. The American Cassiinae. A synoptical revision of Leguminosae tribe Cassieae subtrib Cassiinae in the New World. Mem. New York Bot. Gard. 35, part 1: 1-454.
Discussion:

126r. Senna pendula (Willdenow) var. r., known to us only through Prance et al. 13490 from Rio Purus opposite Labrea, Amazonas, Brazil, is similar to the last in gross facies, but has an extremely massive gland between the first pair of leaflets, little pentagonal staminodes ±1.5 x 1 mm and carnosulous sepals encountered nowhere else in S. pendula sens. lat.