Coreopsis auriculata

Native to the southeastern United States, this low-growing perennial herb spreads by runners to form colonies. Its oval, hairy leaves often have two small ear-shaped lobes at their bases. Yellow flower heads appear in spring and early summer, attracting butterflies and other pollinators. Flowering stems reach about 1 to 2 feet tall. It grows in open woods and fields and is cultivated in borders and rock gardens. Photographed in Florida.