These tasty knobby roots are neither from Jersualem nor are they artichokes. They do taste like globe artichokes.They are a type of sunflower. They have an outer skin like a potato so when you prepare them scrub them well. They can be peeled or cooked in their skin, are delicious sauteed, baked, grilled, broiled or boiled. Raw, they are crisp and are a good additional to a salad.