Complex sentence: Podophyllotoxin, otherwise known as podofilox, is a non-alkaloid toxin in the lignan family present at concentrations of 0.3 to 1.0% by mass in the rhizome of American Mayapple ("Podophyllum peltatum").
Split into simpler sentences: Podophyllotoxin, otherwise known as podofilox, is a non-alkaloid toxin in the lignan family. It is present at concentrations of 0.3 to 1.0% by mass in the rhizome of American Mayapple ("Podophyllum peltatum").