Synthesis

Species description (Flora Helvetica 2018)

20-60 cm hoch, kahl, mit mehreren aufrechten oder aufsteigenden, unverzweigten Stängeln. Blätter schmal-lanzettlich, ganzrandig, 1-3 cm lang, blaugrün. Blütenstand 8-15strahlig, die Strahlen meist 1-2mal gabelig verzweigt. Tragblätter ähnlich wie die Stängelblätter. Hüllbecher mit schief-ovalen, gelben Drüsen. Frucht glatt oder fein punktiert. Samen grau bis braun, glatt.

Flowering period (Flora Helvetica 2018)

5-7

Habitat and distribution inside Switzerland (Flora Helvetica 2018)

Trockenwiesen, steinige und sandige kalkhaltige Böden / kollin-subalpin / VS, ANW, GR (Puschlav), adventiv AG

World distribution (Flora Helvetica 2018)

Südeuropäisch-westasiatisch

Ecological indicator (Landolt & al. 2010)

142-44+5.c.2n=16
.

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

Ecology

Life form

Subfructicose chamaephyte

Habitats

Habitats Delarze & al. 2015

Less strictly linked to a specific habitat 3.3.1.5 - Trockenwarme Kalkschuttflur (Stipion calamagrostis)
Less strictly linked to a specific habitat 4.2.1.1 - Inneralpine Felsensteppe (Stipo-Poion)
Less strictly linked to a specific habitat 6.4.3 - Kontinentaler Steppen-Föhrenwald (Ononido-Pinion)

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 1 Light Value L 4 Salinity Index --
Reaction Value R 4 Temperature factor T 4+
Nutriments value N 2 Continentality K 5
  • 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)

Nomenclature

Vernacular name

Deutscher Name:
Séguiers Wolfsmilch, Steppen-Wolfsmilch
Nom français:
Euphorbe des steppes
Nome italiano:
Euforbia di Séguier

Match with other reference books

Relation Nom Book No
=Euphorbia seguieriana Neck. subsp. seguierianaChecklist 2017161300
=Euphorbia seguieriana Neck. s.str.Flora Helvetica 20011315
=Euphorbia seguieriana Neck. s.str.Flora Helvetica 2012797
=Euphorbia seguieriana Neck. subsp. seguierianaFlora Helvetica 2018797
=Euphorbia seguieriana subsp. loiseleurii (Rouy) Greuter & BurdetIndex synonymique 1996161400
=Euphorbia seguieriana Neck. s.str.Index synonymique 1996161300
=Euphorbia seguieriana Neck. s.str.Landolt 19771950
=Euphorbia seguieriana Neck. s.str.Landolt 19911598
=Euphorbia seguieriana Neck. s.str.SISF/ISFS 2161300
=Euphorbia seguieriana subsp. loiseleurii (Rouy) Greuter & BurdetSISF/ISFS 2161400
=Euphorbia seguieriana Neck. s.str.Welten & Sutter 1982977

= 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)

Checklist 2017 comments  

Neues Konzept: Das Taxon wird gegenüber dem SISF-2 weiter gefasst. Enthält E. seguieriana subsp. loiseleurii sensu Aeschimann & Burdet welche lediglich einer Kümmerform des Typus entspricht. E. seguieriana subsp. loiseleurii (Rouy) Greuter & Burdet ist ein für den ausserhalb des Gebietes der Checklist 2017 gelegenen Mont Ventoux endemisches Taxon. Wegfall des Ausdrucks s.str.: Alle «im engeren Sinn» (sensu stricto, s.str.) gefassten Arten werden neu in Unterarten mit gleichlautendem Unterart-Epithet gefasst (autonyme Unterart). Die Zuordnung zur Unterart sollte nur erfolgen, wenn ihre Bestimmung als solche sichergestellt ist.

Status

Native status   -  -

Status on national Red List

NO INFORMATION

IUCN list of endangered species (Walter & Gillett 1997)

No

National Priority Species List Status

National Priority --
Need to take action --
International responsibility --
Need to monitor populations --

Protection status

International (Bern Convention) No
Cantonal--
Switzerland --
  • 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.