frutex vs maidenhair

frutex

noun
  • A plant with a woody, durable stem, but less than a tree; a shrub. 

maidenhair

noun
  • Designating various types of moss or flowering plants. 

  • Either of two ericaceous plants, the creeping snowberry or the checkerberry. 

  • A woman's pubic hair. 

  • Either of two species of genus Adiantum of fern with delicate, hair-like stalks, especially Adiantum capillus-veneris. 

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