Chenopodium hybridum vs sowbane

Chenopodium hybridum

sowbane

noun

  • A plant, the red goosefoot (Oxybasis rubra, syn. Chenopodium rubrum). 

  • Chenopodiastrum murale 

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