Species boundaries within the recently diverged South American monocot-like Eryngium (Apiaceae, Saniculoideae) based on biogeographic, climatic, morphological, and molecular data: E. cerradense, a new species from Paraguay

The species of Eryngium with a monocot-like habit are among the most taxonomically complex. They show low phenotypic and molecular differentiation due to their recent, rapid, and reticulate speciation during the Quaternary period. In this study, we evaluate the boundaries of the monocot-like Eryngiu