Vigna unguiculata sesquipedalis vs asparagus bean

Vigna unguiculata sesquipedalis

asparagus bean

noun

  • An east Asian type of bean with long, edible pods, the yardlong bean (Vigna unguiculata subsp. sesquipedalis). 

How often have the words Vigna unguiculata sesquipedalis and asparagus bean occurred in a corpus of books? (source: Google Ngram Viewer )