icicle plant vs noonflower

icicle plant

noun
  • A plant in the daisy family,Asteraceae, with long, powdery-white leaves (Helichrysum thianschanicum). 

noonflower

noun
  • Flowers of the family Aizoaceae, especially those of the genus Carpobrotus. 

  • Flowers of the genus Bauhinia. 

  • Tragopogon, a type of aster that closes at midday. 

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