Dutchman's pipe

Dutchman's pipe is a common name for some unrelated flowering plants, which have flowers, inflorescences or stems resembling a pipe:


 * Aristolochia species (birthworts or pipevines) from the Aristolochiaceae, particularly Aristolochia macrophylla
 * Epiphyllum oxypetalum ("night-blooming cereus") from the Cactaceae
 * Monotropa hypopitys (also known as yellow bird's-nest or pinesap) from the Ericaceae