Botanical name: Bolbitis heteroclita
Common name: Water Fern
Family: Elaphoglossaceae
Origin: Malesia
Bolbitis heteroclita normally grows on the margin of water bodies, but will also grow submerged.
Bolbitis heteroclita is cultivated as an ornamental plant for aquariums, paludariums and garden ponds.
Link to this plant:
https://toptropicals.com/catalog/uid/bolbitis_heteroclita.htm