green bean vs haricot

green bean

noun
  • The immature pods of numerous varieties of the common bean, Phaseolus vulgaris. 

  • The immature pods of any kind of bean plant, eaten as a vegetable. 

haricot

noun
  • A common bean. 

  • A stew of lamb and vegetables. 

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