chicory vs common chicory

chicory

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

  • Either of two plants of the Asteraceae family. 

  • 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. 

common chicory

noun
  • Cichorium intybus, a somewhat woody perennial herbaceous plant of the dandelion family, many varieties of which are cultivated for salad leaves. 

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