chaparral vs morass

chaparral

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

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

morass

noun
  • A tract of soft, wet ground; a marsh; a fen. 

  • Anything that entraps or makes progress difficult. 

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