Echinodorus longiscapus (Sword-Plant)
Botanical name: Echinodorus longiscapus
Common name: Sword-Plant
Family: Alismataceae
Origin: South America
Similar plants: Echinodorus longiscapus (Sword-Plant)
Link to this plant:
https://toptropicals.com/catalog/uid/echinodorus_longiscapus.htm