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Petasites frigidus var. palmatus

(Aiton) Cronquist

Arctic sweet coltsfoot

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VALENTINA ROUMI

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Steve Taylor

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Steve Taylor

Petasites frigidus, the Arctic sweet coltsfoot or Arctic butterbur, is a species of flowering plant in the family Asteraceae. It is native to Arctic to cool temperate regions of the Northern Hemisphere in northern Europe, northern Asia and northern North America. It is a herbaceous perennial plant producing flowering stems in early spring, and large leaves through the summer. The upright flowering stems are 10–20 cm (4–8 in) tall, and bear only 5–12 inflorescences, yellowish-white to pink in colour. The leaves are rounded, 15–20 cm (6–8 in) broad, with a deeply cleft base and shallowly lobed margin, and rise directly from the underground rootstock. The underside of the leaves is covered with matted, woolly fuzz. It grows in moist shaded ground, preferring stream banks and seeping ground of cut-banks. While there is some disagreement, some sources identify five varieties of P. frigidus: Petasites frigidus var. frigidus Petasites frigidus var. nivalis, sometimes referred to as P. nivalis or P. hyperboreus. This variety is common at subalpine and alpine elevations. Petasites frigidus var. palmatus, sometimes referred to as P. palmatus, palmate coltsfoot, or western coltsfoot; mâl-ē-mē’ (Konkow language); or tä-tä-tē’; pē’-wē is the root. Petasites frigidus var. sagittatus, arrowleaf sweet coltsfoot. Petasites frigidus var. vitifolius

Description

A herb in the Asteraceae family found in cool temperate regions.

This description is brief — help expand it

Edible Uses

The young leaves and stems are eaten, and the stalks are eaten raw after removing the fibres.

Traditional Uses

The stalks are eaten raw after removing the fibres. The young leaves and stems are eaten.

This uses section is brief — help expand it

Known Hazards

The leaf stalks and flower stems (with flowers) are edible, and can be used as a vegetable dish. A salt-substitute can also be made by drying and then burning the leaves. This black, powdery substance will provide a salty taste. However, given the high likelihood of the presence of toxic unsaturated, diester pyrrolizidine alkaloids in this species, consumption should be very limited.

Distribution

It is a cool temperate plant.

Where It Grows

Arctic, Canada, North America,

Synonyms

Nardosmia arctica (A. E. Porsild) A. Love & D. LoveNardosmia palmata (Aiton) Hook.Petasites arcticus A. E. PorsildPetasites frigidus subsp. arcticus (A. E. Porsild) CodyPetasites frigidus subsp. palmatus (Aiton) CodyPetasites hookerianus (Nutt.) Rydb.Petasites palmatus (Aiton) A. GrayPetasites palmatus subsp. speciosus (Nutt.) J TomanPetasites speciosus (Nutt.) PiperTussilago palmata Aiton

References (2)

  • Kermath, B. M., et al, 2014, Food Plants in the Americas: A survey of the domesticated, cultivated and wild plants used for Human food in North, Central and South America and the Caribbean. On line draft. p 635 (As Petasites palmatus)
  • Moerman, D. F., 2010, Native American Ethnobotany. Timber Press. p 388

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