- Two poisonous plants for day 10 of #ChemAdvent! ☠️ Brazilian farofa is made from cassava flour, made from cassava roots soaked to remove toxic cyanogenic glycosides. Mistletoe is less likely to be eaten but is also poisonous due to the presence of toxic peptides and tyramine. #ChemSky 🧪Dec 10, 2025 12:42