Jack-go-to-bed-at-noon vs showy goatsbeard

Jack-go-to-bed-at-noon

noun

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

showy goatsbeard

noun

Synonym of Jack-go-to-bed-at-noon (Tragopogon pratensis)

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