It belongs to the Asteraceae family, but compared to the wild Cardoon, from which it descends, it is larger, with long and tender ribs and harder and more robust outer stems, sometimes covered with thorns. Generally the external parts and the leaves are eliminated and the internal part is kept more tender and tasty. It is often grown by partially covering it with soil: growing in search of light, the plant bends and for this reason in many areas of Italy thistles are called humpbacks.