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Cyperus eragrostis Lam.

Cyperus eragrostis Lam.

Species
ISFS : 129650
Checklist : 1014360
  1. Cyperaceae
  2. Cyperus
  3. Cyperus eragrostis Lam.

Synthesis

Species description (© Flora Helvetica 2018)

20-70 cm hoch. Stängel undeutlich 3kantig, unten beblättert. Blätter 4-10 mm breit, höchstens so lang wie der Stängel. Blütenstand mit zahlreichen, 1-10 cm langen Ästen, diese an der Spitze die kugeligen Teilblütenstände (Durchmesser 1-2 cm) tragend. Ährchen 10-15 mm lang, gelbgrün bis rostfarbig, 10-40blütig, ihre Achse nicht geflügelt. Narben 3. Blütenstand von 4-6 sehr langen Hochblättern weit überragt.

Flowering period (© Flora Helvetica 2018)

8-9

Habitat and distribution inside Switzerland (© Flora Helvetica 2018)

Gräben, Ufer / kollin / Südliches TI, VD, SG, GE

World distribution (© Flora Helvetica 2018)

Stammt aus dem tropischen Amerika

Ecological indicator (© Landolt & al. 2010)

3+w43-44+2.g.2n=?

Anatomy

Summary of stem anatomy (German)

Umriss rund oder oval. Leitbündel diffus verteilt. Konische Stützen. Kleine Interzellularen, oft dreieckig. Grosse runde oder ovale Intercellularen. Epidermiszellen aussen verholzt.

Description

Culm-diameter 5-10 mm, center full, radius of culm in relation to wall thickness 1:1. Outline circular wavy. Culm-center full, containing unlignified cells. Epidermis cells inside thin, peripheral thicker-walled (lignified). Large vascular bundles distributed in the whole culm. Chlorenchyma in round, oval, square or rectangular groups. Sclerenchyma belt absent. Groups of sclerenchyma at the periphery, round. Vascular bundles collateral closed. Sclerenchymatic sheath around vascular bundles one-sided large, 2-4 cells, centripetal. Vessels arrangement in vascular bundles in lateral position. Largest vessel in the bundle 20-50 μm. Cavities (intercellulars) between parenchyma-cells small, often triangular. Distinct cavities (intercellulars) in the protoxylem area of vascular bundles. Cell contents as slime or phenols in isolated cells.

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

Südliches TI, VD, SG, GE

World distribution

Stammt aus dem tropischen Amerika

Ecology

Life form

Geophyte

Habitats

Habitats © Delarze & al. 2015

Less strictly linked to a specific habitat 2.5.2 - Mehrjährige Schlammflur (Zweizahnflur) (Bidention)

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 3+w Light Value L 4 Salinity Index --
Reaction Value R 4 Temperature factor T 4+
Nutriments value N 3 Continentality K 2
  • 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

Accepted Name (Checklist 2017)

Cyperus eragrostis Lam.

Vernacular name

Deutscher Name :

Frischgrünes Zypergras, Liebesgrasartiges Zypergras

Nom français :

Souchet éragrostide

Nome italiano :

Zigolo falsa panicella

Match with other reference books

Relation Nom Book No
=Cyperus eragrostis Lam.Checklist 2017129650
=Cyperus eragrostis Lam.Flora Helvetica 20012471
=Cyperus eragrostis Lam.Flora Helvetica 20122647
=Cyperus eragrostis Lam.Flora Helvetica 20182647
=Cyperus eragrostis Lam.Index synonymique 1996129650
=Cyperus eragrostis Lam.SISF/ISFS 2129650
= 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