sensitive plant vs wild cucumber

sensitive plant

noun
  • A plant that moves in response to touch and other physical stimuli; especially Mimosa pudica, an annual plant native to Central and South America. 

wild cucumber

noun
  • Armenian cucumber, in the flexuosus cultivar group of Cucumis melo subsp. melo. 

  • Echinocystis lobata, a species of gourd found throughout most of North America 

  • Marah, a genus of gourds native to western North America 

How often have the words sensitive plant and wild cucumber occurred in a corpus of books? (source: Google Ngram Viewer )