Plant: Annual, erect, 1 to 1-1/2 feet tall, gray-downy with few branches
above the base. Invasive
Flowers: Flower heads are solitary or with 2 or three at the ends of
branching stems. Numerous yellow disk flowers, Bracts 3/8 inch long,
covered with spines with purple or brown tinge.
Leaf: Alternate on stems. Lower leaves are cleft with large terminal
lobe, 2 to 4-1/2 inches long. Upper leaves are linear, smooth edges.
All leaves have no stems and extend down the main stem, wing-like.