Chicory
Common chicory, Cichorium intybus, is a somewhat woody, perennial herbaceous plant of the dandelion family, usually with bright blue flowers, rarely white or pink. Many varieties are cultivated for salad leaves, chicons (blanched buds), or roots (var. sativum), which are baked, ground, and used as a coffee substitute and additive. It is also grown as a forage crop for livestock. It lives as a wild plant on roadsides in its native Europe, and now common in North America, China, and Australia, where it has become widely naturalized.
"Chicory" is also the common name in the United States for curly endive (Cichorium endivia); these two closely related species are often confused.
Names
Common chicory is also known as blue daisy, blue dandelion, blue sailors, blue weed, bunk, coffeeweed, cornflower, hendibeh, horseweed, ragged sailors, succory, wild bachelor's buttons, and wild endive. (Note: "Cornflower" is commonly applied to Centaurea cyanus.) Common names for varieties of var. foliosum include endive, radicchio, Belgian endive, French endive, red endive, sugarloaf, and witloof (or witlof).