Osage orange vs bodark

Osage orange

noun
  • The fruit of this tree. 

  • The tree Maclura pomifera, noted for its large, dense, wrinkly, bright green and unpalatable fruit, once a popular hedge tree in the United States. 

bodark

noun
  • The Osage orange tree or its wood. 

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