Synthesis

Species description (Flora Helvetica 2018)

5-30(-50) cm hoch, ohne Ausläufer, in vielstängeligen Büscheln. Stängel ca. 1 mm dick, fein gerillt, blattlos. Ähre stumpf-eiförmig, vielblütig, 3-8 mm lang. Tragblätter braun, breit gerundet, mit hellem Hautrand. Perigonborsten gelbbraun, die Griffelbasis überragend. Narben 2. Frucht mit 2 konvexen Seiten, braun, glänzend, 1-1,3 mm lang, Griffelbasis 0,3-0,5 mm breit, breit-kegelig, 1/2-2/3 so breit wie die Frucht.

Flowering period (Flora Helvetica 2018)

6-8

Habitat and distribution inside Switzerland (Flora Helvetica 2018)

Zeitweise überschwemmte, feinsandige Ufer / kollin / Sehr vereinzelt J, M, AN, TI

Ecological indicator (Landolt & al. 2010)

4+w+44-44+4.a-t.2n=10
.

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:
Eiförmiges Sumpfried, Eiköpfige Sumpfbinse, Eiförmige Teichbinse
Nom français:
Héléocharis ovale
Nome italiano:
Giunchina ovata

Match with other reference books

Relation Nom Book No
=Eleocharis ovata (Roth) Roem. & Schult.Checklist 2017145600
=Eleocharis ovata (Roth) Roem. & Schult.Flora Helvetica 20012500
=Eleocharis ovata (Roth) Roem. & Schult.Flora Helvetica 20122676
=Eleocharis ovata (Roth) Roem. & Schult.Flora Helvetica 20182676
=Eleocharis ovata (Roth) Roem. & Schult.Index synonymique 1996145600
=Eleocharis ovata (Roth) Roem. & Schult.Landolt 1977424
=Eleocharis ovata (Roth) Roem. & Schult.Landolt 1991373
=Eleocharis ovata (Roth) Roem. & Schult.SISF/ISFS 2145600
=Eleocharis ovata (Roth) Roem. & Schult.Welten & Sutter 19822404

= 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:   Endangered

LC: Non menacé

flora.fl.complementary_informations

IUCN criteria: A3c; B2ab(iii,iv,v)

  • 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 3 - medium national priority
flora.fl.prio_measures 2 -
flora.fl.prio_responsability 1 - weak
flora.fl.prio_monitor 2 -

Protection status

International (Bern Convention) No
AG (17.09.1990)
Switzerland --
GE (25.07.2007)

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 4+w+ flora.fl.val_ecologique_L 4 flora.fl.val_ecologique_S --
flora.fl.val_ecologique_R 4 flora.fl.val_ecologique_T 4+
flora.fl.val_ecologique_N 4 flora.fl.val_ecologique_C 4
  • 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. Punktuelle Versteifungselemente am Blattrand und bei der Blattrippe. Verbindungs-Steg zwischen oberer und unterer Epidermis aus verholzten und nicht verholzten Zellen. Leitbündel im Verbindungs-Steg unten eingebettet.

Summary of stem anatomy (German)

Umriss rund oder oval. Leitbündel in einer Reihe. Grosse, unregelmässige Intercellularen. Epidermiszellen aussen verholzt.

Description

Culm-diameter < 0.5 mm, center full, radius of culm in relation to wall thickness 1:1. Outline circular with a smooth surface. Culm-center full, containing unlignified cells. Epidermis cells inside thin, peripheral thicker-walled (lignified). Epidermis cells thick-walled all around. Large vascular bundles arranged in one peripheral row. Small or rudimentary vascular bundles mainly at the periphery. Chlorenchyma present in form of unlignified thinwalled palisade-like cells. Sclerenchyma belt absent. Groups of sclerenchyma at the periphery, round. Vascular bundles collateral closed. Sheath around vascular bundles absent or not lignified. Vessels arrangement in vascular bundles horseshoe-like. Largest vessel in the bundle small, < 20μm. Cavities (intercellulars) between parenchyma-cells round, oval or radial. Crystals absent.