impatiens vs sensitive plant

impatiens

noun
  • Any of various ornamental plants of the genus Impatiens. 

sensitive plant

noun
  • A plant that moves in response to touch and other physical stimuli; especially Mimosa pudica, an annual plant native to Central and South America. 

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