leaf litter vs rejectamenta

leaf litter

noun
  • Dead plant material, such as fallen leaves, bark, and twigs, that has fallen to the ground and may be used by animals as habitat or for nest-building, eventually decomposing and releasing nutrients into the soil. 

rejectamenta

noun
  • Things that are thrown away or rejected; items with little or no value waste, rubbish, garbage, refuse, ejecta 

How often have the words leaf litter and rejectamenta occurred in a corpus of books? (source: Google Ngram Viewer )