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Carex hartmanii Cajander

Species
ISFS : 88400
Checklist : 1009860

Synthesis

Species description (© Flora Helvetica 2018)

Ähnlich wie C. buxbaumii, aber Blätter grün, Ähren zylindrisch, bis 3,5 cm lang, die beiden untersten deutlich abgerückt, das unterste Hochblatt den Blütenstand kaum überragend, Fruchtschläuche nur 2-3 mm lang, mit 2 geraden Zähnen.

Flowering period (© Flora Helvetica 2018)

5-6

Habitat and distribution inside Switzerland (© Flora Helvetica 2018)

Kalkhaltige Flachmoore / kollin(-montan) / ZH, SG, VD (Les Grangettes), VS

World distribution (© Flora Helvetica 2018)

Eurosibirisch

Ecological indicator (© Landolt & al. 2010)

4w+22-43+3.h.2n=?

Status

IUCN status

 Endangered

National Priority

 3 - medium national priority

International responsibility

 1 - weak

Conservation

Threats


Drainage, Austrocknung
Aufgabe der traditionellen Streunutzung
Verbuschung
Beweidung, Eutrophierung
Überbauung, Aufschüttung, Umwandlung in Landwirtschaftsland
Wenige, isolierte Populationen, in der Schweiz sehr kleines Verbreitungsgebiet.

Anatomy

Summary of leaf anatomy (German)

Obere Epidermiszellen grösser als untere. Epidermis mit Papillen. Verbindungs-Steg zwischen oberer und unterer Epidermis aus verholzten und nicht verholzten Zellen. Leitbündel im Verbindungs-Steg unten eingebettet. Leitbündelhülle verholzt.

Summary of stem anatomy (German)

Umriss exakt dreieckig. Leitbündel in mehreren Reihen. Rechteckige Stützen. Epidermiszellen verholzt. Epidermiszellen mit Papillen.

Description

Culm-diameter 1-2 mm, wall large, radius of culm in relation to wall thickness approximately 1: 0.5. Outline triangular, acutely. Culm-center hollow and surrounded by many large thin-walled, not lignified cells. Epidermis papillous (bulliform). Large vascular bundles arranged in one peripheral row. Small or rudimentary vascular bundles within the chlorenchyma. Chlorenchyma in round, oval, square or rectangular groups. Sclerenchyma belt absent. Groups of sclerenchyma square or rectangular. Vascular bundles collateral closed. Sclerenchymatic sheath around vascular bundles circular large, 3 to x cells. Vessels arrangement in vascular bundles in lateral position. Largest vessel in the bundle 20-50 μm. Cavities (intercellulars) between parenchyma-cells small, often triangular. Cavities (intercellulars) and aerenchyma in any other form. Crystals absent.

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

ZH, SG, VD (Les Grangettes), VS

World distribution

Eurosibirisch

Ecology

Life form

Perennial hemicryptophyte

Habitats

Habitats © Delarze & al. 2015

Less strictly linked to a specific habitat 2.3.1 - Pfeifengraswiese (Molinion)

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 4 Salinity Index --
Reaction Value R 2 Temperature factor T 3+
Nutriments value N 2 Continentality K 3
  • 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 hartmanii Cajander

Vernacular name

Deutscher Name :

Hartmans Segge

Nom français :

Laîche de Hartman

Nome italiano :

Carice di Hartman

Match with other reference books

Relation Nom Book No
=Carex hartmanii CajanderChecklist 201788400
=Carex hartmanii CajanderFlora Helvetica 20012547
=Carex hartmanii CajanderFlora Helvetica 20122723
=Carex hartmanii CajanderFlora Helvetica 20182723
=Carex hartmanii CajanderIndex synonymique 199688400
=Carex hartmanii CajanderLandolt 1977501
=Carex hartmanii CajanderLandolt 1991438
=Carex hartmanii CajanderSISF/ISFS 288400
=Carex hartmanii CajanderWelten & Sutter 19822505
= 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

Endangered

Additional information

IUCN criteria: C1

Status on regional Red List 2019

Biogregraphic regions Status IUCN criteria
Jura (JU) --
Mittelland (MP) ENC1
Alpennordflanke (NA) ENC1
Alpensüdflanke (SA) --
Östliche Zentralalpen (EA) --
Westliche Zentralalpen (WA) CRD
  • Legend
    EXExtinct
    RERegionally Extinct
    CR(PE)Critically Endangered, Probably Extinct
    CRCritically Endangered
    ENEndangered
    VUVulnerable
    NTNear Threatened
    LCLeast Concern
    DDData Deficient
    NENot Evaluated
    NANot Applicable

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

International (Bern Convention) No
VDtotal protection (02.03.2005)
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.

Status by sector of activity

Agriculture-related environmental objectives : Z - more informations

Conservation

Threats and measures

Drainage, Austrocknung


Keine weitere Entwässerung
Wasserhaushalt stabilisieren und evtl. lokal leicht Vernässen

Aufgabe der traditionellen Streunutzung


Extensive Bewirtschaftung weiterführen
mehrjährige Bestände alle 2 Jahre im Herbst mähen
Schnittgut entfernen
Bewirtschaftungs- verträge

Verbuschung


Entbuschen

Beweidung, Eutrophierung


Höchstens extensiv beweiden
evtl. einzäunen
grosse Pufferzonen schaffen

Überbauung, Aufschüttung, Umwandlung in Landwirtschaftsland


Keine weiteren Flächenverluste zulassen

Wenige, isolierte Populationen, in der Schweiz sehr kleines Verbreitungsgebiet.


Schutz inkl. angemessener Pufferzonen (z. B. Ortsplanung)
regelmässige Bestandeskontrollen
Dauerflächen-Beobachtung
bestehende Schutz und Förderungsmassnahmen weiterführen, Verstärkung bestehender Populationen und Ansiedlung neuer Populationen durch Anpflanzung (nach Zwischenvermehrung)

Ex situ material

In-situ measures

More informations

Conservation fact sheet (in german)R. Dickenmann & A. Keel, 2018: Aktionsplan Carex hartmaniiFachstelle Naturschutz Kt. Zürich & Topos, 2019: Anleitung zur Kultivierung Carex hartmaniiM. Klesczewski et al., 2019: La Laîche de Hartman: actualité en Brenne et contexte européen, Recherches naturalistes N8 M.S.