Monotropa uniflora, also known as the ghost plant, Indian pipe, or corpse plant, is a herbaceous perennial plant native to temperate regions of Udmurtiya in European Russia, Asia, North America and northern South America, but with large gaps between areas. It was formerly classified in the family Monotropaceae; however, it has now been included within the Ericaceae. It is generally scarce or rare in occurrence. The plant is sometimes completely white but commonly has black flecks anda pale pink coloration. Rare variants may havea deep red color.