Mermaid Weed (Proserpinaca Palustris) is a perennial aquatic in the Lythraceae family with moderate care difficulty. It requires aquatic watering and full sun or partial shade light in USDA hardiness zones 5-10. This plant is safe for cats and dogs.

Proserpinaca palustris is an aquatic plant found in still or slow-moving waters, known for its finely divided leaves that change color depending on light conditions.