Echinodorus pseudohorizontalis Rataj
Should actually be called Echinodorus x pseudohorizontalis. Was described by Karel Rataj as Echinodorus pseudohorizontalis.
However, Saumi Lehtonen classified it as a hybrid in his work on the classification of Echinodorus.
Therefore, the correct name would be Echinodorus x pseudohorizontalis .
This Echinodorus also has nothing in common with the true Echinodorus horizontalis.