The lectotype at P, as well as the isolectotypes at MO and W show a mix of species. Mounted to the left is what we consider as the 'real' P. schiedei, described by de Candolle as 'repens aut scandens'. Mounted to the right is a much more fragmentary specimen with erect habit. It shows a thick stem, leaves with a different shape and nervation pattern, shorter petioles [Mathieu, 2017]