The petasites hybridus or butterbur

The ditches on the Freissinières plain are edged by a plant with very broad leaves: the petasites hybridus or butterbur, also called the devil's hat in French. In Ancient Greek, the petasos was a round felt hat. Nobody knows whether the devil wears this hat, but the plant is certainly used as a herbal remedy. Very common in the lowlands, it is quite rare in the Pays des Écrins although other species of petasites do grow at higher altitude.