plant-based vs vegetal

plant-based

adj
  • Based on plants; especially, of a diet, consisting mostly or wholly of foods derived from plants. 

  • Made from plants other than the traditional source. 

vegetal

adj
  • Pertaining to vegetables or plants. 

  • Having a grassy, herbaceous taste. 

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