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Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Petasites frigidus var. frigidus

Petasites frigidus (L.) Fr. var. frigidus

Arctic Butterbur, Arctic Sweet Coltsfoot

Asteraceae (Aster Family)

Synonym(s): Petasites alaskanus, Petasites corymbosus, Petasites frigidus ssp. nivalis, Petasites frigidus var. corymbosus, Petasites frigidus var. hyperboreoides, Petasites frigidus var. nivalis, Petasites gracilis, Petasites hyperboreus, Petasites nivalis


USDA Native Status: L48 (N), AK (N), CAN (N)


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Plant Characteristics

Duration: Perennial
Habit: Herb
Size Notes: Up to about 2 feet tall, occasionally much taller.
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.

Bloom Information

Bloom Color: White , Pink , Yellow
Bloom Time: Mar , Apr


USA: AK , MT , OR , WA
Canada: AB , BC , NT , NU , SK , YT

Web Reference

Webref 3 - Flora of North America (2014) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.

Additional resources

USDA: Find Petasites frigidus var. frigidus in USDA Plants
FNA: Find Petasites frigidus var. frigidus in the Flora of North America (if available)
Google: Search Google for Petasites frigidus var. frigidus


Record Modified: 2019-05-17
Research By: CBR

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