Jack-go-to-bed-at-noon vs ice plant

Jack-go-to-bed-at-noon

noun
  • A biannual plant distributed across Europe and North America (Tragopogon pratensis) 

ice plant

noun
  • A succulent annual, Mesembryanthemum crystallinum, of the fig marigold family, having pale pink flowers and fleshy leaves covered with glistening water vesicles. 

  • Any of several plants in fig marigold family, Aizoaceae, which were formerly classified in the genus Mesembryanthemum along with Mesembryanthemum crystallinum. 

  • Especially, Carpobrotus edulis. 

How often have the words Jack-go-to-bed-at-noon and ice plant occurred in a corpus of books? (source: Google Ngram Viewer )