Ernie Janes / Butterbur (Petasites hybridus) seen from a low angle. UK, April.

Will Watson / Butterbur (Petasites hybridus) and Opposite-leaved Golden Saxifrage (Chrysosplenium oppositifolium), Herefordshire, England, UK

Michel Roggo / Butterbur (Petasites hybridus) submerged underwater in spring, Saane river, Switzerland, April

Alex Hyde / Emerging Butterbur flower {Petasites hybridus} Peak District National Park, Derbyshire, UK. March 2009.

Wild Wonders of Europe / Wothe / Butterbur (Petasites hybridus) leaves, Poloniny National Park, Western Carpathians, Slovakia, Europe, May 2009

Jason Smalley / Butterbur flowerhead {Petasites sp} UK

Martin Gabriel / Butterbur {Petasites hybridus} flowering. Bavaria, Germany

MYN / Niall Benvie / Common butterbur {Pestasites hybridus} in flower, Angus, Scotland, UK meetyourneighbours.net project

Nature Production / Japanese Butterbur {Petasites japonicus} growing beside a mountain stream, Hokkaido, Japan

Philippe Clement / Butterbur flower and leaf {Petasites hybridus} France

Pascal Tordeux / Butterbur / Sweet Coltsfoot (Petasites hybridus). Picardy, France, July.

Paul Hobson / Butterbur plant flower {Petasites hybridus}, Derbyshire, England UK