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Chenopodium urbicum L.
Chenopodium urbicum L., © Konrad Lauber
Chenopodium urbicum L., © Konrad Lauber

Chenopodium urbicum L.

Species
ISFS : 110000
Checklist : 1012030
  1. Amaranthaceae
  2. Chenopodium
  3. Chenopodium urbicum L.

Synthesis

Species description (© Flora Helvetica 2018)

50-100 cm hoch, wenig und nur oben verzweigt, mit steif aufrechten Seitenästen, nur wenig Mehlstaub im Blütenstand, später ganz verkahlend. Blätter rhombisch bis 3eckig, unregelmässig grob-buchtig gezähnt, 3-15 cm lang und etwa ebenso breit. Teilblütenstände endständig und in Blattwinkeln, locker-ährig, steif aufrecht, nur mit wenigen, schmalen Blätter.

Flowering period (© Flora Helvetica 2018)

7-9

Habitat and distribution inside Switzerland (© Flora Helvetica 2018)

Wegränder, Schuttplätze / kollin / VS, TI, sonst gelegentlich adventiv

World distribution (© Flora Helvetica 2018)

Osteuropäisch-asiatisch

Ecological indicator (© Landolt & al. 2010)

2+45+454.t.2n=18,36

Status

IUCN status

 Endangered

National Priority

 3 - medium national priority

International responsibility

 1 - weak

Distribution map

Simple

Before threshold year
After threshold year
Before and after threshold year

Advanced

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

Number of observations

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

Habitat and distribution inside Switzerland

VS, TI, sonst gelegentlich adventiv

World distribution

Osteuropäisch-asiatisch

Ecology

Life form

Therophyte

Habitats

Habitats © Delarze & al. 2015

Character species 7.1.5 - Trockenwarme Ruderalflur (Onopordion)

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 2+ Light Value L 4 Salinity Index 1
Reaction Value R 4 Temperature factor T 5
Nutriments value N 5 Continentality K 4
  • Ecological values legend
    Humidity Value H
    1very dry
    1+dry
    2moderatly dry
    2+moist
    3medium wet
    3+wet
    4very wet
    4+soggy
    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
    1halotolerant
    3halophyle
    Light Value L
    1very shady
    2shady
    3lighted areas
    4luminous
    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)

Water dependency

Rivers 0 - No link
Calm water 0 - No link
Ground water 0 - No link

Nomenclature

Accepted Name (Checklist 2017)

Chenopodium urbicum L.

Vernacular name

Deutscher Name :

Stadt-Gänsefuss

Nom français :

Chénopode des agglomérations

Nome italiano :

Farinello piè d'oca

Match with other reference books

Relation Nom Book No
=Chenopodium urbicum L.Checklist 2017110000
=Chenopodium urbicum L.Flora Helvetica 2001307
=Chenopodium urbicum L.Flora Helvetica 20121111
=Chenopodium urbicum L.Flora Helvetica 20181111
=Chenopodium urbicum L.Index synonymique 1996110000
=Chenopodium urbicum L.Landolt 1977916
=Chenopodium urbicum L.Landolt 1991796
=Chenopodium urbicum L.SISF/ISFS 2110000
=Chenopodium urbicum L.Welten & Sutter 1982210
= 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)

Status

Native status

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

Status on national Red List 2016

IUCN status:

 Endangered

LC: Non menacé

Additional information

IUCN criteria: B2b(iv)c(iii)

Status on regional Red List 2019

Biogregraphic regions Status IUCN criteria
Jura (JU) --
Mittelland (MP) CRB2b(iv)c(iii)
Alpennordflanke (NA) RE
Alpensüdflanke (SA) RE
Östliche Zentralalpen (EA) --
Westliche Zentralalpen (WA) CRB2b(iv)c(iii)
  • Legend
    EXExtinct
    RERegionally Extinct
    CR(PE)Critically Endangered, Probably Extinct
    CRCritically Endangered
    ENEndangered
    VUVulnerable
    NTNear Threatened
    LCLeast Concern

National Priority Species List Status

National Priority 3 - medium national priority
Need to take action 1 -
International responsibility 1 - weak
Need to monitor populations --

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.

Conservation

Threats and measures

More informations

S. Schneider, 2017 : Konzeption zum Schutz gefährdeter Ackerwildkräuter in Luxemburg, Maßnahmen zum Erhalt - Vortrag auf dem Workshop Schutz der gefährdeten Ackerflora und -fauna, Bertrange. Organisiert von SICONA & PartnernS. Meyer et al, 2013: Ackerwildkrautschutz - Eine Bibliographie - BfN Skripten 351