Petasites paradoxus (Retz.) Baumg.

Petasites paradoxus (Retz.) Baumg.

ISFS : 296000
Checklist : 1033020


Species description (© Flora Helvetica 2018)

Stängel zur Blütezeit 10-30 cm, später bis 60 cm hoch, mit schuppenförmigen, violett überlaufenen, den Stängel umfassenden Blättern. Grundständige Blätter am Ende der Blütezeit erscheinend, 3eckig herz- bis spiessförmig, spitz, buchtig gezähnt, nicht über 20 cm breit, unterseits bleibend weissfilzig. Blütenköpfe in einer +/- dichten Traube, nur mit Röhrenblüten, diese rötlich. Hüllen rötlich-violett. Früchte 2-3 mm lang, mit ca. 10 mm langen Pappusborsten.

Flowering period (© Flora Helvetica 2018)


Habitat and distribution inside Switzerland (© Flora Helvetica 2018)

Felsschutt, steinig-buschige Hänge, auf Kalk / (montan-)subalpin-alpin / A, M in Alpennähe, JS (VD)

World distribution (© Flora Helvetica 2018)

Mittel- und südeuropäisch

Ecological indicator (© Landolt & al. 2010)



IUCN status

 Least concern

Distribution map


Before threshold year
After threshold year
Before and after threshold year


Validated observations
Observations waiting for validation
Occurrences from Atlas Welten & Sutter (1982) and supplements (1984, 1994) without confirmation in the Info Flora database since
Before threshold year
After threshold year
Not native / introduced / subspontaneous / escaped

Number of observations

Below the threshold number of observations
Above or equal the threshold number of observations

Habitat and distribution inside Switzerland

A, M in Alpennähe, JS (VD)

World distribution

Mittel- und südeuropäisch


Life form



Habitats © Delarze & al. 2015

Less strictly linked to a specific habitat 3.3 - Steinschutt- und Geröllfluren
Character species - Feinerdereiche Kalkschuttflur (Petasition paradoxi)

bold Dominant species, influencing the appearance of the habitat
Character species Character species
Less strictly linked to a specific habitat Less strictly linked to a specific habitat

Ecological indicator values by © Landolt & al. (2010)

Soil factors Climatic factors Salinity tolerance
Humidity Value H 4w Light Value L 5 Salinity Index --
Reaction Value R 5 Temperature factor T 2
Nutriments value N 3 Continentality K 3
  • Ecological values legend
    Humidity Value H
    1very dry
    2moderatly dry
    3medium wet
    4very wet
    5submerged or underwater
    fplants living in running water
    umostly submerged plants
    vpartly submerged, partly floating plants
    whumidity moderately variable (± scale of 1-2)
    w+highly variable humidity (scale exceeding ± 2)
    Reaction Value R
    1Very acid (pH 2.5-5.5)
    2acid (pH 3.5-6.5)
    3lightly acid to neutral (pH 4.5-7.5)
    4neutral to basic (pH 5.5-8.5)
    5basic (pH 6-5 -> 8.5
    Nutriments value N
    1very low in nutrients
    2low in nutriments
    3medium-poor to medium-rich in nutrients
    4rich in nutriments
    5very rich in nutriments
    Salinity tolerance
    Light Value L
    1very shady
    3lighted areas
    5highly luminous
    Temperature factor T
    1alpine to nival stages (from the treeline to the snowline)
    1+suprasubalpine and upper subalpine levels (pine and larch forests)
    2subalpine level (coniferous forests without beeches up to the upper limit of spruces)
    2+lower subalpine and upper mountain stages
    3mountain level (beech and silver fir forests, in the central Alps Scots pine forests)
    3+lower mountain and upper hill levels
    4hill level (mixed deciduous oak forests)
    4+hot places, hill level
    5very hot places, hill level (only in the hottest places, typical of southern Europe)
    Continentality K
    1Atlantic (high air humidity, very low temperature variations, mild winters)
    2Sub-Atlantic (high air humidity, low temperature variations, relatively mild winters)
    3sub-Atlantic to subcontinental (average air humidity, moderately variable temperature, slightly low winter temperatures)
    4subcontinental (low air humidity, large temperature variations, rather cold winters)
    5continental (very low air humidity, very large temperature variations, cold winters)


Accepted Name (Checklist 2017)

Petasites paradoxus (Retz.) Baumg.

Vernacular name

Deutscher Name :

Alpen-Pestwurz, Schneeweisse Pestwurz

Nom français :

Pétasite paradoxal

Nome italiano :

Farfaraccio niveo

Match with other reference books

Relation Nom Book No
=Petasites paradoxus (Retz.) Baumg.Checklist 2017296000
=Petasites paradoxus (Retz.) Baumg.Flora Helvetica 20012159
=Petasites paradoxus (Retz.) Baumg.Flora Helvetica 20122151
=Petasites paradoxus (Retz.) Baumg.Flora Helvetica 20182151
=Petasites paradoxus (Retz.) Baumg.Index synonymique 1996296000
=Petasites paradoxus (Retz.) Baumg.Landolt 19773042
=Petasites paradoxus (Retz.) Baumg.Landolt 19912453
=Petasites paradoxus (Retz.) Baumg.SISF/ISFS 2296000
=Petasites paradoxus (Retz.) Baumg.Welten & Sutter 19821821
= The taxon corresponds to the accepted taxon (Checklist 2017)
< The taxon is included in the accepted taxon (Checklist 2017)
> The taxon includes (among others) also the accepted taxon (Checklist 2017)


Native status

IUCN list of endangered species (© Walter & Gillett 1997) : No

Status on national Red List 2016

IUCN status:

 Least concern

Least concern

Additional information

IUCN criteria: --

Status on regional Red List 2019

Biogregraphic regions Status IUCN criteria
Jura (JU) NTD2
Mittelland (MP) VUD1
Alpennordflanke (NA) LC
Alpensüdflanke (SA) LC
Östliche Zentralalpen (EA) LC
Westliche Zentralalpen (WA) LC
  • Legend
    RERegionally Extinct
    CR(PE)Critically Endangered, Probably Extinct
    CRCritically Endangered
    NTNear Threatened
    LCLeast Concern
    DDData Deficient
    NENot Evaluated
    NANot Applicable

National Priority Species List Status

No national priority or international responsability

Protection status

No international, national or cantonal protection
  • Disclaimer
    InfoFlora compiles information on protected species as accurately as possible, taking it from the respective cantonal laws. In some cases, however, it was not possible to use the plant names as listed in the original text, but an interpretation of their taxonomy or nomenclature was necessary. The exact meaning of the categories „completely protected“ and „partially protected“ differs among the cantons.

    InfoFlora cannot guarantee that the information on the protection status is correct and complete. In case of doubts, we recommend to look up the texts of the respective cantonal law.