Monographs Details: Senna pendula var. "r" (Willd.) H.S.Irwin & Barneby
Family:Caesalpiniaceae
Description:Variety Description - [Key: "Lfts obovate or oblanceolate, rarely elliptic-oblanceolate, broadest above (exceptionally near) the middle; range of the whole sp. Style at and after anthesis 1.5-5 mm and the 2 long abaxial filaments 6-11 mm. Plants of the Orinoco valley in Venezuela, of the Amazonia Hylaea, of the Paraguai basin, and of coastal s.-e. Brazil. Lfts penniveined on lower face, the raised tertiary venulation, if present, weak and erratic, not forming a close, sharply defined reticulum; allopatric; seeds 2-seriate. Style only 1.5-3 mm; Amazonia s.-ward. Sepals carnosulous (finely wrinkled when dry); blade of staminodes bluntly rhombic in outline, ±1.5 mm diam; long anthers ±5.5 mm; upper Purus valley in Amazonas, Brazil."]

Discussion:Known to us only through Prance et al. 13490 from Rio Purus opposite Labrea, Amazonas, Brazil, is similar to the last in gross dfacies, but has an extremely massive gland between the first pair of leaflets, little pentagonal staminodes ±1.5 1 mm and carnosulous sepals encountered nowhere else in S. pendula sens. lat.
Distribution:Amazonas Brazil South America|