Jose B. Ruiz / Birthwort / Dutchman's Pipe (Aristolochia sempervirens), Alcal de Guadara, Seville, Spain

Geoff Simpson / Dutchman's pipe{Hypopitys monotropa} Peak District NP, Derbyshire, UK - saprophytic plant lacking in chlorophyll

Tim Fitzharris / Saguaro (Carnegiea gigantea) cacti and Superstition Mountains, Lost Dutchman State Park, Arizona

Doug Wechsler / Dutchman's breeches (Dicentra cucullaria) Pennsylvania, USA, March.

Gary K. Smith / Dutchman's pipe(Hypopitys monotropa) saprophyte plant lacking chlorophyll, growing under mature pines on coastal dunes, North Norfolk, UK, June

Tim Fitzharris / Teddy Bear Cholla (Cylindropuntia bigelovii) beneath the Superstition Mountain, Lost Dutchman State Park, Arizona

Gary K. Smith / Dutchman's pipe(Hypopitys monotropa) saprophyte plant lacking chlorophyll, growing under mature pines on coastal dunes, North Norfolk, UK, June

Gary K. Smith / Dutchman's pipe(Hypopitys monotropa) saprophyte plant lacking chlorophyll, growing under mature pines on coastal dunes, North Norfolk, UK, June

Gary K. Smith / Dutchman's pipe(Hypopitys monotropa) saprophyte plant lacking chlorophyll, growing under mature pines on coastal dunes, North Norfolk, UK, June

MYN / Niall Benvie / Birthwort / Dutchman's pipe flower {Aristolochia sp} Spain meetyourneighbours.net project

Tim Fitzharris / Saguaro (Carnegiea gigantea) cacti and Superstition Mountains at Lost Dutchman State Park, Arizona

Jose B. Ruiz / Birthwort / Dutchman's Pipe (Aristolochia sempervirens) Alcalá de Guadaíra, Seville, Spain

Tim Fitzharris / Saguaro (Carnegiea gigantea) cactus and California Brittlebush (Encelia californica) in Lost Dutchman State Park, Superstition Mountains, Arizona

MYN / Niall Benvie / Dutchman's pipe{Hypopitys monotropa} Scotland, UK, July

Niall Benvie / Flower of Dutchman's pipe Aristolochia cretica) Crete

Tim Fitzharris / California Brittlebush (Encelia californica), Lost Dutchman State Park, Superstition Mountains, Arizona

Doug Wechsler / Dutchman's pipe/ Pinesap {Hypopitys monotropa} saprophytic. Olympic NP WA, USA

Michael & Patricia Fogden / Ecuadorian Dutchman's Pipe (Aristolochia pichinchensis) flower in rainforest, Ecuador

Pascal Tordeux / Birthworts / Pipevines / Dutchman's Pipes (Aristolochia clematitis). French Alps, July.

Robert Thompson / Yellow birds' nest / Dutchman's pipe (Hypopitys monotropa) growing under beech trees, Castle Calwell, County Fermanagh, Northern Ireland, UK, August