3.2. Bignonia sciuripabulum (Schumann 1894: 224) Lohmann in Hokche et al. (2008: 272) (Figs. 4 b, 5 g).

Diagnosis:— Bignonia sciuripabulum can be recognized by the tetragonal and winged stems (vs. cylindrical and not winged in B. binata), and inflorescences thyrsoid (vs. racemose in B. binata).

Reproductive Period:— Flowering throughout the year, fruiting in October and November.

Distribution and Habitat:— It occurs in Argentina, Brazil, Bolivia, Colombia, Ecuador, Guyana, Paraguay, Peru, and Venezuela (Lohmann 2010, Lohmann & Taylor 2014, Zuntini et al. 2015). Within the study area, it was registered in all areas, in sympatry with B. binata .

Selected Specimens Examined:— ARGENTINA. Misiones, Parque Nacional Iguazú: Puerto Iguazú, Sendero Yacaratia, 30 October 1995, Herrera 100 (CTES!) . BRAZIL. Paraná, Parque Nacional do Iguaçu: Foz do Iguaçu, 25°37’18.3”S, 54°26’45.9”W, 11 October 2009, Temponi (UNOP!) ; Céu Azul, estrada entre Céu Azul e Matelândia, 25°12’21.0”S, 53°51’57.8”W, 21 August 2015, Caxambu 6821 (HCF!, MBM!) ; Capanema, margens do Rio Iguaçu, 23 February 2016, Hammes 98 (UNOP!) .