Figure 3 from: Pellegrini MOO, Horn CN (2017) Two peculiar new species of Heteranthera Ruiz & Pavón (Pontederiaceae) from Brazil, with notes on inflorescence architecture in the family. PhytoKeys 82: 35-56. https://doi.org/10.3897/phytokeys.82.13752

Figure 3 - Distribution map. ■ Heteranthera catharinensis C.N.Horn & M.Pell. ● H. pumila M.Pell. & C.N.Horn. Green– Paraná watershed; Yellow– Uruguay watershed; Red– Southeastern Atlantic watershed; following ANA – Agência Nacional de Águas (2002).