Double Buttercup (Ranunculus Constantinopolitanus) is a perennial herb in the Ranunculaceae family with moderate care difficulty. It requires moderate watering and full sun or partial shade light in USDA hardiness zones 5-9. This plant is toxic to cats and dogs — keep it out of reach of pets.

Ranunculus constantinopolitanus 'Plenus' is a clump-forming perennial with bright yellow double flowers and deeply lobed dark green leaves.