Picture comingClimbing aroid with arrow-shaped juvenile leaves; an undemanding houseplant that grows above water in paludaria, with its roots allowed to trail into the water.
Not an underwater plant. It is a land plant and rots if you plant it under water. Keep its leaves in the air, for example on the land part of a paludarium or with only its roots in the water.
Check your local laws. USA (Florida): classed as a Category I invasive species by the Florida Invasive Species Council and judged an invasive threat by the UF/IFAS assessment; not on federal or Florida state noxious-weed lists. UF/IFAS does not recommend planting it in Florida. Never throw it into ponds, rivers or drains.
13 facts checked with sources