Leaves 2 to 10 inches long with lobed entire margins. Grows upright 1-5 feet tall with branches primarily in upper flowering portion of the plant.
Leaves are alternate, clasp the stem with angled lobes.
Roots, stems, and leaves exude a milky juice when broken. Flowers pale to bright yellow. Flowers borne on slender stalks, terminally at branch ends. Winter annual or biennial Reproduces only by seed. May overwinter as a rosette.