In recent years 4 species of the genus
Echinodorus have been imported in large quantities to Europe from Southern Brazil, being cultivated as decorative plants in aquaria.
In spite of the fact that up to now not all organs from these plants are known, they differ so greatly from the known species
by character of the submersed leaves that there is no doubt that the species, in question, viz.
E. osiris, E. opacus, E. horemani and
E. portoalegrensis, are new.