Figure 8 from: Pellegrini MOO, Horn CN, Almeida RF (2018) Total evidence phylogeny of Pontederiaceae (Commelinales) sheds light on the necessity of its recircumscription and synopsis of Pontederia L. PhytoKeys 108: 25-83. https://doi.org/10.3897/phytokeys.108.27652

Figure 8 Pontederiasubg.Eichhornia (Kunth) M.Pell. & C.N.Horn. A–B habit: A habit of P.heterosperma (Alexander) M.Pell. & C.N.Horn, showing the emerged petiolate leaves B habit of P.diversifolia (Vahl) M.Pell. & C.N.Horn, showing the floating petiolate leaves C–F inflorescence: C 2–3-flowered inflorescences of P.diversifolia, showing the flowers with a yellow nectar guide in the posterior perianth lobes D 1-flowered inflorescence of P.natans P.Beauv., showing the lack of a nectar guide E inflorescence of P.heterosperma, showing the lack of nectar guides in the posterior perianth lobes F morphological variation of inflorescences and perianth colour of P.azurea Sw G front view of a flower of P.azurea H front view of a flower of P.natans. A, B by O. Gaubert C by A.S. Castro D by P. Birnbaum E by H. Medeiros F by L.O.A. Teixeira G by M.O.O. Pellegrini and I by T.C. Buruwate.