Perennial weed primarily of turfgrass and lawns that resembles dandelion. Found in the eastern United States as far north as New Jersey and as far west as Mississippi. Leaves are arranged in a basal rosette and are densely hairy with toothed or irregularly lobed margins.
Leaves emit a milky sap when broken.
Flower stalks also emit a milky sap when broken. Consist of bright yellow ray flowers that have teeth at the tip. From 2 to 7 flowers are produced on each flower stalk. The rosette growth habit, irregularly lobed leaves, and bright yellow flowers are all characteristics that help with the identification of common catsear.