green bean vs seedpod

green bean

noun
  • The immature pods of any kind of bean plant, eaten as a vegetable. 

  • The immature pods of numerous varieties of the common bean, Phaseolus vulgaris. 

seedpod

noun
  • A pouch-like form on a plant which encloses the seeds. 

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