The Ghost Plant, also known as the Indian Pipe (Monotropa uniflora), is a rare, otherworldly plant that thrives in complete darkness. Unlike most plants, it does not rely on photosynthesis.

And, actually, some parasitic plants are heterotrophs as well. Like Monotropa — with no green, chlorophyll- packed leaves to photosynthesize with, it hardly resembles a plant at all. Instead ...