Common Butterbur Petasites hybridus

Petasites hybridus Common Butterbur (Petasites hybridus) is a herbaceous perennial plant in the family Asteraceae, native to Europe and northern Asia. The flowers are produced in the early spring, before the leaves appear; they are pale pink, with several inflorescences clustered on a 5-20 cm stem. The leaves are large, on stout 80-120 cm tall stems, round, with a diameter of 40-70 cm. It is also called Bog rhubarb, Devil's hat and Pestilence wort. Synonyms include P. officinalis, P. ovatus and P. vulgaris. from wikipedia ( dutch name groot hoefblad)