Arctic butterbur

English
an Arctic butterbur, Petasites frigidus var. palmatus

Noun

Arctic butterbur (plural Arctic butterburs)

  1. A flowering plant native to North America, Petasites frigidus; sweet coltsfoot.
    • 2013, Zoë Gardner & Michael McGuffin, American Herbal Products Association’s Botanical Safety Handbook‎, page 964:
      Note that although medicinal species of Petasites, including purple butterbur (Petasites hybridus) and Arctic butterbur (Petasites frigidus), are not listed in this text, these species also contain pyrrolizidine alkaloids.
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