Figure 4 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 4 - Field photos of Heteranthera pumila M.Pell. & C.N.Horn. A Bog at the Paranapanema river, Piraju, São Paulo, Brazil B Habit, showing the dense subpopulation at the muddy shore of the bog C Leaf D Detail of the apex of the stem, showing the ligule and the inflorescence E Detail of the inflorescence, showing the glandular hairs at the peduncle, base of the basal bract and cincinnus F Front view of the flower, the shape of the perianth lobes and the color of the nectar guide. Photographs A–E by M.O.O. Pellegrini, F by V. Bittrich.