beefsteak vs beefsteak mushroom

beefsteak

noun
  • The herb prepared from the leaves of the beefsteak plant. 

  • (A) steak cut from beef cattle. 

beefsteak mushroom

noun
  • Fistulina hepatica (an edible fungus) 

  • Gyromitra esculenta (a potentially fatally poisonous fungus that is a delicacy) 

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