Monographs Details: Senna organensis var. extratropica H.S.Irwin & Barneby
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.
Description:Variety Description - Gland between proximal pair of lfts only; lfts 3-5 pairs, the distal pair 1.8-3.5 cm, the margin revolute; both faces of lfts loosely reticulate, the tertiary veinlets prominulous; androecium of var. organensis; gynoecium glabrous.—Collections: 6. [Key: "Filaments of 3 abaxial stamens 2-3 mm and their anthers ±3-4 mm long; range of the species. Lfts 3-5 pairs; gland between proximal pair only; venulation of both faces prominulous, at least in mature blades; ovary glabrous; e. Parana."]

Distribution and Ecology - Subalpine campo and margins of cloud forest, 1150-1700 m, on and e. of the crest of Sa. do Mar in mun. Campina Grande, Morretes and Guaratuba, Parana.— Fl. IX-II.

Discussion:This variety, fully disjunct from the rest of the species, is distinguished from var. organensis, of which it has essentially the flower and fruit, by the combination of relatively few, reticulate leaflets, a solitary petiolar gland, and glabrous ovary.
Distribution:ParanĂ¡ Brazil South America|