celery vs foliage

celery

noun
  • The stalks of this herb eaten as a vegetable. 

  • A European herb (Apium graveolens) of the carrot family. 

  • A yellow-green colour, like that of a celery. 

foliage

noun
  • The leaves of plants. 

  • Fall foliage. 

  • An architectural ornament representing foliage. 

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