Chicory is a flowering plant in the dandelion family that is characterized by a tough, hairy stem, light purple flowers and leaves that are commonly used in salads. Also used to "improve" the taste of coffee.
Interesting info about chicory:
It is used for loss of appetite, upset stomach, constipation, liver and gallbladder disorders, cancer, and rapid heartbeat. It is also used as a “tonic,” to increase urine production, to protect the liver, and to balance the stimulant effect of coffee. Wow!