Petasites

Petasites is a genus of herbs with leaves in the shape of a heart in the family Asteraceae. The common English name of petasites is Butterbur. Plants of this genus grow near rivers and other water places in Europe, Asia and North America.

In general, the leaves are very big. Its root is very long and grows very quickly. Flowers are white, yellow, white-yellow or white-red, they are small and in a great number.

Butterbur is used in medical purposes, but there is a poison in all parts of the plant.

Some species of Butterbur are cultivated as a garden plant.

Other websites

 Germplasm Resources Information Network: Petasites 
 ITIS: Petasites
 NCBI: Petasites
 eFloras
Species of Petasites

Category:Asteraceae
Category:Flowers