man-of-the-earth vs wild cucumber

man-of-the-earth

noun
  • manroot (Ipomoea leptophylla) 

wild cucumber

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

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

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

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