👉 Waldsteinia is a genus of flowering plants in the family Rosaceae, commonly known as the buttercup or buttercup. The specific name "waldsteineri" refers to the plant being described by Carl von Waldstein (1802-1867). This genus is widely distributed across Europe and North America, with a few species also found in Asia Minor. The plants are characterized by their large, oval-shaped flowers that often have white or pink markings on their