Hieracium gronovii or queendevil is a North American plant species in the dandelion tribe within the sunflower family. It is common and widespread across much of the continent from Ontario south as far as Florida, the Dominican Republic, and Panamá. Hieracium gronovii is an herb up to 80 cm (31 in) tall, with leaves mostly on the stem rather than in a rosette at the bottom. Leaves are up to 90 mm (3.5 in) long, with no teeth on the edges. One stalk will produce 5–50 flower heads in an elongated array. Each head has 12-20 yellow ray flowers but no disc flowers.