Synthesis

Species description (Flora Helvetica 2018)

10-50 cm hoch. Stängel 3kantig, glatt. Blätter hellgrün, flach, 1-2 mm breit, schlaff. Blütenstand kopfig, gelblich-grün, Durchmesser 1-2 cm, mit zahlreichen, dicht gedrängten Ährchen, von 2-5 blattartigen, bis 15 cm langen Hochblättern überragt. Ährchen unten weiblich, oben männlich. Narben 2. Deckspelzen grannig zugespitzt, ca. halb so lang wie die Fruchtschläuche. Diese 8-10 mm lang und höchstens 1 mm dick, geschnäbelt.

Flowering period (Flora Helvetica 2018)

8-9

Habitat and distribution inside Switzerland (Flora Helvetica 2018)

Ufer, Gräben, ausgetrocknete Teiche / kollin / JN (Ajoie)

Ecological indicator (Landolt & al. 2010)

4+w+34-44+4.h.2n=80
.

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

Nomenclature

Vernacular name

Deutscher Name:
Böhmische Segge, Zypergras-Segge
Nom français:
Laiche de Bohème
Nome italiano:
Carice boema

Match with other reference books

Relation Nom Book No
=Carex bohemica Schreb.Checklist 201784000
=Carex bohemica Schreb.Flora Helvetica 20012514
=Carex bohemica Schreb.Flora Helvetica 20122690
=Carex bohemica Schreb.Flora Helvetica 20182690
=Carex bohemica Schreb.Index synonymique 199684000
=Carex bohemica Schreb.SISF/ISFS 284000
=Carex bohemica Schreb.Welten & Sutter 19822439

= 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   -  -

Status on national Red List 2016

flora.fl.statut_iucn:   Critically endangered

LC: Non menacé

flora.fl.complementary_informations

IUCN criteria: B2ab(iii)c(iv); C2b; D

  • Legend
    EXExtinct
    RERegionally Extinct
    CR(PE)Critically Endangered, Probably Extinct
    CRCritically Endangered
    ENEndangered
    VUVulnerable
    NTNear Threatened
    LCLeast Concern

IUCN list of endangered species (Walter & Gillett 1997)

No

flora.fl.prio_title

flora.fl.prio_priority 2 - high national priority
flora.fl.prio_measures 2 -
flora.fl.prio_responsability 1 - weak
flora.fl.prio_monitor 2 -

Protection status

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

Ecology

Life form

Habitats

flora.fl.habitats_delarze

NO INFORMATION

Ecological indicator values by Landolt & al. (2010)

flora.fl.val_ecologique_sol flora.fl.val_ecologique_climat flora.fl.val_ecologique_salinite
flora.fl.val_ecologique_H -- flora.fl.val_ecologique_L -- flora.fl.val_ecologique_S --
flora.fl.val_ecologique_R -- flora.fl.val_ecologique_T --
flora.fl.val_ecologique_N -- flora.fl.val_ecologique_C --
  • flora.fl.val_ecologique_legende
    flora.fl.val_ecologique_H
    1flora.fl.val_ecologique_H_1
    1+flora.fl.val_ecologique_H_1plus
    2flora.fl.val_ecologique_H_2
    2+flora.fl.val_ecologique_H_2plus
    3flora.fl.val_ecologique_H_3
    3+flora.fl.val_ecologique_H_3plus
    4flora.fl.val_ecologique_H_4
    4+flora.fl.val_ecologique_H_4plus
    5flora.fl.val_ecologique_H_5
    ^flora.fl.val_ecologique_H_f
    Uflora.fl.val_ecologique_H_u
    Vflora.fl.val_ecologique_H_v
    wflora.fl.val_ecologique_W_2
    w+flora.fl.val_ecologique_W_3
    flora.fl.val_ecologique_R
    1flora.fl.val_ecologique_R_1
    2flora.fl.val_ecologique_R_2
    3flora.fl.val_ecologique_R_3
    4flora.fl.val_ecologique_R_4
    5flora.fl.val_ecologique_R_5
    flora.fl.val_ecologique_N
    1flora.fl.val_ecologique_N_1
    2flora.fl.val_ecologique_N_2
    3flora.fl.val_ecologique_N_3
    4flora.fl.val_ecologique_N_4
    5flora.fl.val_ecologique_N_5
    flora.fl.val_ecologique_salinite
    1flora.fl.val_ecologique_salinite_s
    3flora.fl.val_ecologique_salinite_ss
    flora.fl.val_ecologique_L
    1flora.fl.val_ecologique_L_1
    2flora.fl.val_ecologique_L_2
    3flora.fl.val_ecologique_L_3
    4flora.fl.val_ecologique_L_4
    5flora.fl.val_ecologique_L_5
    flora.fl.val_ecologique_T
    1flora.fl.val_ecologique_T_1
    1+flora.fl.val_ecologique_T_1plus
    2flora.fl.val_ecologique_T_2
    2+flora.fl.val_ecologique_T_2plus
    3flora.fl.val_ecologique_T_3
    3+flora.fl.val_ecologique_T_3plus
    4flora.fl.val_ecologique_T_4
    4+flora.fl.val_ecologique_T_4plus
    5flora.fl.val_ecologique_T_5
    flora.fl.val_ecologique_C
    1flora.fl.val_ecologique_C_1
    2flora.fl.val_ecologique_C_2
    3flora.fl.val_ecologique_C_3
    4flora.fl.val_ecologique_C_4
    5flora.fl.val_ecologique_C_5

Anatomy

Images and descriptions (© Fritz H. Schweingruber & Hugo Berger)

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

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 nicht verholzt.

Summary of stem anatomy (German)

Umriss stumpf-dreieckig. Leitbündel in mehreren Reihen. Konische Stützen. Kleine Interzellularen, oft dreieckig. Epidermiszellen aussen verholzt.

Description

Culm-diameter 1-2 mm, wall large, radius of culm in relation to wall thickness approximately 1: 0.5. Outline triangular, obtusely. Culm-center hollow and surrounded by many large thin-walled, not lignified cells. Epidermis cells inside thin, peripheral thicker-walled (lignified). Large vascular bundles arranged in 2-3 peripheral rows. Small or rudimentary vascular bundles mainly at the periphery. Chlorenchyma absent. Sclerenchyma belt absent. Groups of sclerenchyma tangentially enlarged. Vascular bundles collateral closed. Small sclerenchymatic sheath around vascular bundles with 1-2 cells. Vessels arrangement in vascular bundles in lateral position. Largest vessel in the bundle 20-50 μm. Cavities (intercellulars) between parenchyma-cells round, oval or radial. Distinct cavities (intercellulars) in the protoxylem area of vascular bundles. Crystals absent.