Potentilla (poh-ten-till-uh), cinquefoil; Rosaceae Family. Potentilla is a large genus of perennials and woody plants. Many found in temperate and arctic regions. They range from 6 inches to 2 to 3 feet in height and are rugged, requiring little care once established in sunny open sites. They have compound, small leaves and five-petal strawberry-like flowers, mostly white, but some white, rose or red. Potentilla are useful in rock gardens and borders.