A taxonomic revision of Panphalea Lag. (Compositae: Nassauvieae) for Uruguay is presented. Panphalea, in Uruguay, is composed of five species: Panphalea bupleurifolia Less., Panphalea cardaminifolia Less., Panphalea commersonii Cass., Panphalea heterophylla Less., and Panphalea maxima Less. All uruguayan species of Panphalea were taxonomically evaluated and circumscribed based on analyses of the
... [Show full abstract] protologues, laboratory studies, and careful study of type material, herbarium specimens and field observations. A dichotomous key for the identification of the Uruguayan species is provided. For each species, synonymy, detailed description, geographic distribution, and line drawings are presented. Two neotypes are designated.
