Some plants use toxins to avoid being eaten. Some use thorns, or turn into carnivores. The Lithops Julli survives by pretending to be a rock. If youre into picking up rocks in South Africa, chances are youll pick one of these up, too. The disguise seems useless because theyre flowering plants. Nope, even the flowers are disguised with abstract lines and colors. The colors of everything about the plant are atypical for this very reason.