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Petasites frigidus (L. ) Fr.
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Petasites frigidus
© Copyright Mel Harte 2010 · 3
Petasites frigidus

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Petasites frigidus
© Copyright Mel Harte 2010 · 3
Petasites frigidus
Petasites frigidus
© Copyright Mel Harte 2010 · 3
Petasites frigidus

Petasites frigidus
© Copyright Mel Harte 2010 · 3
Petasites frigidus
Petasites frigidus
© Copyright Mel Harte 2010 · 3
Petasites frigidus

Petasites frigidus, palmatus
© Les Mehrhoff, 2008-2010 · 1
Petasites frigidus, palmatus

Associates · map
FamilyScientific name @ source (records)
Apidae  Bombus borealis @ AMNH_BEE (1)

Bombus sylvicola @ EMEC (14)

Bombus ternarius @ AMNH_BEE (1)
Coleosporiaceae  Coleosporium petasitis @ BPI (1)
Erysiphaceae  Erysiphe cichoracearum @ BPI (1)
Pucciniaceae  Puccinia conglomerata @ BPI (5)

Puccinia petasitis @ BPI (3)

Puccinia poarum @ BPI (1)
Synchytriaceae  Synchytrium aureum @ BPI (3)
Uropyxidaceae  Aecidium petasitidis @ BPI (1)

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Following modified from Plants Database, United States Department of Agriculture
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http://plants.usda.gov/java/profile?symbol=PEFR5 ---> https://plants.usda.gov/java/profile?symbol=PEFR5
https://plants.usda.gov/java/profile?symbol=PEFR5 ---> http://plants.usda.gov/core/profile?symbol=PEFR5
http://plants.usda.gov/core/profile?symbol=PEFR5 ---> https://plants.usda.gov/core/profile?symbol=PEFR5
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Petasites frigidus (L.) Fr.
arctic sweet coltsfoot

General Information
Symbol: PEFR5
Group: Dicot
Family: Asteraceae
Duration: Perennial
Growth Habit : Forb/herb
Native Status : AK   N
L48   N
Data Source and Documentation
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Plants-NRCS Logos
green round image for nativity Native blue round image for introduced Introduced ocre round image for introduced and nativity Both white round image for no status Absent/Unreported
image for native, but no county data Native, No County Data image for introduced, but no county data Introduced, No County Data both introduced and native, but no county data Both, No County Data
Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   





Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Magnoliophyta – Flowering plants
Class Magnoliopsida – Dicotyledons
Subclass Asteridae
Order Asterales
Family Asteraceae ⁄ Compositae – Aster family
Genus Petasites Mill. – butterbur
Species Petasites frigidus (L.) Fr. – arctic sweet coltsfoot

Subordinate Taxa

The Plants Database includes the following 4 subspecies of Petasites frigidus . Click below on a thumbnail map or name for subspecies profiles. Plant is native (blue) Native Plant is introduced Introduced Plant is introduced Native and Introduced Related taxa legend Distribution of <i>
Petasites frigidus</i>
(L.) Fr. var. <i>
frigidus </i>
Petasites frigidus var. frigidus
arctic sweet coltsfoot Distribution of <i>
Petasites frigidus</i>
(L.) Fr. var. <i>
(Aiton) Cronquist
Petasites frigidus var. palmatus
arctic sweet coltsfoot Distribution of <i>
Petasites frigidus</i>
(L.) Fr. var. <i>
(Banks ex Pursh) Cherniawsky
Petasites frigidus var. sagittatus
arrowleaf sweet coltsfoot Distribution of <i>
Petasites frigidus</i>
(L.) Fr. var. <i>
(Greene) Cherniawsky
Petasites frigidus var. vitifolius
arctic sweet coltsfoot

Legal Status

Wetland Status

Interpreting Wetland Status

North America
Alaska FACW
Arid West FACW
Atlantic and Gulf Coastal Plain FACW
Eastern Mountains and Piedmont FACW
Great Plains FAC
Midwest FACW
Northcentral & Northeast FACW
Western Mountains, Valleys, and Coast FACW

Related Links

More Accounts and Images
ARS Germplasm Resources Information Network (PEFR5)
CalPhotos (PEFR5)
Integrated Taxonomic Information System (PEFR5)
Jepson Interchange (University of California - Berkeley) (PEFR5)
Lady Bird Johnson Wildflower Center Native Plant Information Network (PEFR5)
Native American Ethnobotany (University of Michigan - Dearborn) (PEFR5)
Native Plants Network (PEFR5)
University of Washington Burke Museum (PEFR5)



Source Large Mammals Small Mammals Water Birds Terrestrial Birds


Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food Cover

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Following modified from Flora of North America
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Link to Flora of North America home
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FNA Vol. 20 Page 637 , 639 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 20 | Asteraceae | Petasites

1. Petasites frigidus (Linnaeus) Fries, Summa Veg. Scand. 182. 1845.

Arctic sweet coltsfoot, Arctic butterbur

Tussilago frigida Linnaeus, Sp. Pl. 2: 865. 1753; Nardosmia frigida (Linnaeus) Hooker

Plants 10—60(—120) cm. Rhizomes much branched, creeping, often forming long-lived, spreading clones. Basal leaves: blades mostly reniform, orbiculate-cordate, cordate, ovate, triangular, or sagittate, margins subentire to coarsely dentate to wavy, or shallowly to deeply pinnipalmately or palmately lobed, lobes obtuse to acute, often again lobed or toothed, abaxial faces densely white-tomentose to lanate, adaxial faces densely lanate or floccose, glabrescent, or glabrous. Staminate heads 2—53 (ray florets: 0 or 1—70, styliferous and sterile, corolla laminae 1.1—12 mm; disc florets 11—78, functionally staminate; style branches 0—2.3 mm, papillate or hairy). Pistillate heads 5—60 (ray florets 30—139, pistillate and fertile, corolla laminae 0.6—6.3 mm; disc florets 1—12, functionally staminate, style branches 0—2.3 mm, papillate or hairy). Phyllaries: staminate 3.6—12.8 × 1—4.4 mm, pistillate 1—9.5 × 0.7—3.3 mm, margins entire or serrate. Cypselae 1.7—3.5 mm; pappi (longest, pistillate heads) 7—17.3 mm.

Varieties 4 (4 in the flora): North America, Eurasia.

Updated: 2020-06-05 20:30:31 gmt
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