Butterbur
''Petasites'' is a genus of flowering plants in the sunflower family, Asteraceae, that are commonly referred to as butterburs and coltsfoots.''Petasites''.
Flora of North America. Volume 20, Page 635. efloras.org. They are perennial plants with thick, creeping underground s and large -like leaves during the growing season. Most species are native to Asia or southern Europe.

Taxonomy

The genus name is derived from the Greek word ''petasos'', from the plant's broad leaves resembling a wide-brimmed hat.

Species

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