Monotropa hypopitys, the so-called Dutchman's pipe, false beech-drops, pinesap, or yellow bird's-nest, is a herbaceous perennial plant, formerly classified in the families Monotropaceae or Pyrolaceae, but now included within the subfamily Monotropoideae of the family Ericaceae.

[2] Unlike most plants, it does not contain chlorophyll; it is a myco-heterotroph, getting its food through parasitism upon fungi rather than photosynthesis.

Plants flower from April to December depending on the geographic region (May to October in North America).

[6] The species name is from Latinized Greek hypo-, "under", and pitys, "pine", referring to where pinesap often grows.

In California, Monotropa hypopitys may be confused for the much less common Pityopus or Hemitomes which are superficially similar.