Niall Benvie / Young girl smiling, with large Butterbur (Petasites sp) leaf on her head, Scotland, UK, May 2009. Model released

Nick Hawkins / Trout lily (Erythronium americanum) flower, New Brunswick, Canada, May.

Nick Hawkins / Trout lily (Erythronium americanum) flower, New Brunswick, Canada, May.

Nick Hawkins / Trout lily (Erythronium americanum) flowers in habitat, New Brunswick, Canada, May.

Martin Gabriel / Henderson' s trout lily / Dog' s tooth lily (Erythronium hendersonii), occurs in the Pacific Coast of Northern America, flowering in a private garden in Bavaria, Germany.

Martin Gabriel / Oregon trout lily / Dog's tooth lily (Erythronium oregonum), occurs in the Pacific Coast of Northern America, flowering in a private garden in Bavaria, Germany.

MYN / Clay Bolt / Trout lily (Erythronium americanum) in flower, Greenville, USA, March. meetyourneighbours.net project

MYN / Clay Bolt / Trout lily (Erythronium americanum) flower head, Greenville, USA, March. meetyourneighbours.net project

MYN / Clay Bolt / Trout lily (Erythronium americanum) flower head, Greenville, USA, March. meetyourneighbours.net project

Jerry Monkman / A trout lily {Erythronium americanum} flower, Lemington, Vermont, USA

Tim Fitzharris / Trout Lily (Erythronium americanum) blossom showing anthers, Ontario, Canada