Pinesap, Many-flower Indian-pipe: Monotropa hypopitys (Synonyms: Hypopitys americana, Hypopitys fimbriata, Hypopitys insignata, Hypopitys lanuginosa, Hypopitys latisquama, Hypopitys monotropa, Monotropa hypopithys, Monotropa hypopithys ssp. lanuginosa, Monotropa hypopithys var. americana, Monotropa hypopithys var. latisquama, Monotropa hypopithys var. rubra, Monotropa hypopitys, Monotropa lanuginosa, Monotropa latisquama) - Flowers 2 to several. Plants are saprophytic, typically yellowish or pinkish, or occasionally white, lacking chlorophyll.
Indian-pipe, Indian Pipe, One-flower Indian-pipe: Monotropa uniflora (Synonyms: Monotropa brittonii, Monotropa morisoniana) - Flowers generally single. Plants are saprophytic, ghostly white or faint pink in color, lacking chlorophyll.