boscage vs chaparral

boscage

noun
  • A place set with trees or mass of shrubbery, a grove or thicket. 

  • Among painters, a picture depicting a wooded scene. 

  • Mast-nuts of forest trees, used as food for pigs, or any such sustenance as wood and trees yield to cattle. 

  • A tax on wood. 

chaparral

noun
  • The foliage of creosote bush, Larrea divaricata, when used as a medicinal herb. 

  • A region of shrubs, typically dry in the summer and rainy in the winter. The coast of the Mediterranean is such a region. 

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