Grows up to 6 feet tall.
Flower: Solitary at the top of long stems, with the flower
head leaning over by midsummer. Heads grow to a diameter of 1.5
to 3 inches. Blossoms are bright purple, sometimes white. They
are surrounded by lance-shaped, spine-tipped, bracts.
Leaves: Waxy, up to 10 inches long, dark green with a light
green midrib, and mostly white margins. Edges are deeply lobed,
with 3-5 spiny points per lobe.
Other: Large fleshy taproot that is hollow near the soil