Nymphoides peltata (Yellow Floating Heart)
Botanical name: Nymphoides peltata
Common name: Yellow Floating Heart
Family: Menyanthaceae
Origin: Eastern Asia
Yellow floating heart can be a popular aquatic garden ornamental for outdoor water gardens.
Similar plants: Nymphoides peltata (Yellow Floating Heart)
Link to this plant:
https://toptropicals.com/catalog/uid/nymphoides_peltata.htm