Either of two plants of the Asteraceae family.
The common chicory (Cichorium intybus), the source of Belgian endive, radicchio, and sugarloaf.
The endive (Cichorium endivia), the source of escarole and frisée.
A coffee substitute made from the roasted roots of the common chicory, sometimes used as a cheap adulterant in real coffee.
Also, in subfamily Cichorioideae, Vernonia spp. (ironweeds).
Pulicaria spp. (false fleabane), especially common fleabane (Pulicaria dysenterica subsp. dysenterica, formerly Inula dysenterica)
Erigeron spp., especially Erigeron acre (blue fleabane)
Inula spp. (yellowheads)
Conyza spp. (butterweeds or horseweed)
mostly in two tribes of subfamily Asteroideae
Pluchea spp. (camphorweeds)