black-eyed pea vs holm oak

black-eyed pea

noun
  • The edible seed of these plants. 

  • An African leguminous plant, of the species Vigna unguiculata, widely cultivated as food and forage, specifically Vigna unguiculata subsp. unguiculata. 

  • Any pale bean with a black spot. 

holm oak

noun
  • An evergreen tree, Quercus ilex, native to the Mediterranean region. 

How often have the words black-eyed pea and holm oak occurred in a corpus of books? (source: Google Ngram Viewer )