hell's bells vs malpitte

hell's bells

noun
  • Jimsonweed (Datura stramonium). 

intj
  • An expression of frustration, outrage, or surprise. 

malpitte

noun
  • A weed in the nightshade family (Datura stramonium), which can be used as a hallucinogenic drug. 

How often have the words hell's bells and malpitte occurred in a corpus of books? (source: Google Ngram Viewer )