chicory vs chicory button

chicory

noun
  • The endive (Cichorium endivia), the source of escarole and frisée. 

  • Either of two plants of the Asteraceae family. 

  • The common chicory (Cichorium intybus), the source of Belgian endive, radicchio, and sugarloaf. 

  • A coffee substitute made from the roasted roots of the common chicory, sometimes used as a cheap adulterant in real coffee. 

chicory button

noun
  • A plant of the species Cichorium intybus 

How often have the words chicory and chicory button occurred in a corpus of books? (source: Google Ngram Viewer )