Resumo

BACH, Hernán G  e  FORTUNATO, Renée H. Crotalaria vespertilio (Papilionoideae, Leguminosae) nuevo registro para el nordeste de Argentina y este de Paraguay. Bol. Soc. Argent. Bot. [online]. 2014, vol.49, n.3, pp.393-400. ISSN 1851-2372.

Crotalaria vespertilio from northeastern Argentina and eastern Paraguay is reported, described and illustrated. This species is similar to C. paulina, but differs by its floral morphology. A key separating it is included. In addition, synonyms with lectotypes here designed and an actualized distribution map in South America from both species are provided.

Palavras-chave : Leguminosae; Crotalaria; Taxonomy; South America.

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