Fishbone Cactus & PotFishbone Cactus Epiphyllum anguliger This eye catching cactus originates from the rainforest of Mexico and has uniquely shaped long, flat stems resembling (you guessed it) a fishbone! The stems start by growing upright but as they grow longer, they will eventually trail down over your stylish ceramic ribbed pot. This is an epiphytic plant meaning it grows aerial roots, this is because, in its natural environment, the fishbone would anchor to a host