Indian turnip vs jack-in-the-pulpit

Indian turnip

noun

  • Used other than figuratively or idiomatically: see Indian, turnip. (also meaning Brassica rapa cultivars in India) 

  • Arisaema triphyllum 

jack-in-the-pulpit

How often have the words Indian turnip and jack-in-the-pulpit occurred in a corpus of books? (source: Google Ngram Viewer )