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Carex praecox Schreb.
Carex praecox Schreb., © Konrad Lauber
Carex praecox Schreb., © Konrad Lauber

Carex praecox Schreb.

Species
ISFS : 92600
Checklist : 1010220
  1. Cyperaceae
  2. Carex
  3. Carex praecox Schreb.

Contains :

Synthesis

Species description (© Flora Helvetica 2018)

15-60 cm hoch. Stängel sehr dünn, 3kantig, nur oben rau. Blätter 1-1,5 mm breit, schlaff. Blütenstand endständig, 1-2 cm lang, mit 3-6 gedrängt stehenden, 0,5-1 cm langen Ährchen, diese unten männlich, oben weiblich. Narben 2. Deckspelzen spitz, braun, mit hellem Hautrand. Fruchtschläuche im oberen Teil geflügelt, plötzlich in den Schnabel verschmälert, 3-3,5 mm lang.

Flowering period (© Flora Helvetica 2018)

5-6

Habitat and distribution inside Switzerland (© Flora Helvetica 2018)

Trockene, sandige Böden in warmen Lagen / kollin-montan / Sehr vereinzelt M, J, GR

World distribution (© Flora Helvetica 2018)

Osteuropäisch-asiatisch

Ecological indicator (© Landolt & al. 2010)

2w32+43+5.g.2n=58

Status

IUCN status

 Endangered

National Priority

 3 - medium national priority

International responsibility

 1 - weak

Anatomy

text alt
Leaves, 100x
text alt
Leaves, 400x

Summary of leaf anatomy (German)

Obere Epidermiszellen grösser als untere. Versteifungselemente linienförmig am Blattrand. Verbindungs-Steg zwischen oberer und unterer Epidermis homogen verholzt. Leitbündel im Verbindungs-Steg in der Mitte eingebettet. Leitbündelhülle nicht verholzt.

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

Sehr vereinzelt M, J, GR

World distribution

Osteuropäisch-asiatisch

Ecology

Habitats

Habitats © Delarze & al. 2015

NO INFORMATION

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

Soil factors Climatic factors Salinity tolerance
Humidity Value H -- Light Value L -- Salinity Index --
Reaction Value R -- Temperature factor T --
Nutriments value N -- Continentality K --
  • 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)

Carex praecox Schreb.

Vernacular name

Deutscher Name :

Frühe Segge

Nom français :

Laîche précoce

Nome italiano :

Carice serpeggiante

Match with other reference books

Relation Nom Book No
=Carex praecox Schreb.Checklist 201792600
=Carex praecox Schreb.Flora Helvetica 20182697
=Carex praecox Schreb. s.l.SISF/ISFS 292600
= 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

Wegfall des Ausdrucks s.l.: Die Art wurde bisher als «sensu lato» (s.l.) gekennzeichnet. Da die früher gleichlautende «sensu stricto-Art» (s.str.) in eine Unterart umbenannt wurde, erübrigt sich die Kennzeichnung s.l.
Checklist

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: B2ac(iii,iv)

Status on regional Red List 2019

Biogregraphic regions Status IUCN criteria
Jura (JU) ENB2ac(iii,iv)
Mittelland (MP) ENB2ac(iii,iv)
Alpennordflanke (NA) ENB2ac(iii,iv)
Alpensüdflanke (SA) --
Östliche Zentralalpen (EA) RE
Westliche Zentralalpen (WA) --
  • 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 2 -
International responsibility 1 - weak
Need to monitor populations 2 -

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