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Avenella flexuosa (L.) Drejer

Species
ISFS : 57400
Checklist : 1006320

Synthesis

Species description (© Flora Helvetica 2018)

30-70 cm hoch, lockere Horste bildend. Blätter fadenförmig eingerollt, glänzend. Blatthäutchen bis 2 mm lang. Rispe mit abstehenden, glatten oder rauen, geschlängelten, meist purpurroten Ästen. Ährchen ca. 5 mm lang, 2blütig, mit 2 häutigen Hüllspelzen, die obere länger als die untere. Grannen der Deckspelzen ca. 2mal so lang wie die Spelze, gekniet, das Ährchen überragend.

Flowering period (© Flora Helvetica 2018)

6-8

Habitat and distribution inside Switzerland (© Flora Helvetica 2018)

Magere Wiesen und Weiden, Wälder und Waldschläge, ausgetrocknete Hochmoore, auf saurem Boden / kollin-subalpin(-alpin) / A, höhere Teile des M, J

World distribution (© Flora Helvetica 2018)

Weltweit verbreitet

Ecological indicator (© Landolt & al. 2010)

2+w12-233.h.2n=(14,26)28

Status

IUCN status

 Least concern

Anatomy

Summary of leaf anatomy (German)

Obere Epidermiszellen grösser als untere. Epidermis mit Papillen. Leitbündel freistehend. Leitbündelhülle verholzt.

Summary of stem anatomy (German)

Umriss rund oder oval. Leitbündel in einer Reihe. Epidermiszellen verholzt. Chlorenchyma in peripheren runden, ovalen oder rechteckigen Gruppen.

Description

Culm-diameter < 0.5 mm, wall large, radius of culm in relation to wall thickness 1:0.5. Outline circular with a smooth surface. Culm-center hollow and surrounded by a few thin-walled, not lignified cells. Epidermis-cells thick-walled all around. Large vascular bundles arranged in one peripheral row. Chlorenchyma in tangentially enlarged groups. Sclerenchyma in a small, peripheral continuous belt (< 4 cells). Cells medium thick-walled. Small sclerenchymatic sheath with 1-2 cells around vascular bundles. Largest vessels in vascular bundles in lateral position. Largest vessel in the bundle small, < 20μm.

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

A, höhere Teile des M, J

World distribution

Weltweit verbreitet

Ecology

Life form

Perennial hemicryptophyte

Habitats

Habitats © Delarze & al. 2015

Less strictly linked to a specific habitat 4.3.5 - Borstgrasrasen (Nardion)
Less strictly linked to a specific habitat 5.4 - Zwergstrauchheiden
Less strictly linked to a specific habitat 5.4.1 - Subatlantische Zwergstrauchheide (Ginsterheide) (Calluno-Genistion)
Less strictly linked to a specific habitat 5.4.4 - Trockene subalpine Zwergstrauchheide (Zwergwacholderheide) (Juniperion nanae)
Less strictly linked to a specific habitat 5.4.5 - Mesophile subalpine Zwergstrauchheide (Alpenrosenheide) (Rhododendro-Vaccinion)
Less strictly linked to a specific habitat 6.2.2 - Hainsimsen-Buchenwald (Luzulo-Fagenion)
Less strictly linked to a specific habitat 6.3.6 - Saurer Eichenmischwald (Quercion robori-petraeae)
Less strictly linked to a specific habitat 6.3.7 - Kastanienwald
Less strictly linked to a specific habitat 6.4.3 - Kontinentaler Steppen-Föhrenwald (Ononido-Pinion)
Less strictly linked to a specific habitat 6.4.4 - Kalkarmer Föhrenwald (Dicrano-Pinion)
Less strictly linked to a specific habitat 6.5 - Hochmoorwälder
Less strictly linked to a specific habitat 6.5.1 - Hochmoor-Birkenwald (Betulion pubescentis)
Less strictly linked to a specific habitat 6.5.3 - Hochmoor-Fichtenwald (Sphagno-Piceetum)
Less strictly linked to a specific habitat 6.6 - Gebirgsnadelwälder
Less strictly linked to a specific habitat 6.6.2 - Heidelbeer-Fichtenwald (Vaccinio-Piceion)
Less strictly linked to a specific habitat 6.6.3 - Lärchen-Arvenwald (Larici-Pinetum cembrae)
Less strictly linked to a specific habitat 6.6.4 - Lärchenwald (Junipero-Laricetum)

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 -- 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)

Nomenclature

Accepted Name (Checklist 2017)

Avenella flexuosa (L.) Drejer

Vernacular name

Deutscher Name :

Draht-Schmiele, Wald-Schmiele

Nom français :

Canche flexueuse

Nome italiano :

Avenella flessuosa

Match with other reference books

Relation Nom Book No
=Avenella flexuosa (L.) DrejerChecklist 201757400
=Avenella flexuosa (L.) DrejerFlora Helvetica 20012733
=Avenella flexuosa (L.) DrejerFlora Helvetica 20122914
=Avenella flexuosa (L.) DrejerFlora Helvetica 20182914
=Avenella flexuosa (L.) DrejerIndex synonymique 199657400
=Avenella flexuosa (L.) DrejerSISF/ISFS 257400
=Avenella flexuosa (L.) DrejerWelten & Sutter 19822296
= 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:

 Least concern

LC: Non menacé

Additional information

IUCN criteria: --

Status on regional Red List 2019

Biogregraphic regions Status IUCN criteria
Jura (JU) NTA4c
Mittelland (MP) NTA4c
Alpennordflanke (NA) LC
Alpensüdflanke (SA) LC
Östliche Zentralalpen (EA) LC
Westliche Zentralalpen (WA) LC
  • Legend
    EXExtinct
    RERegionally Extinct
    CR(PE)Critically Endangered, Probably Extinct
    CRCritically Endangered
    ENEndangered
    VUVulnerable
    NTNear Threatened
    LCLeast Concern

National Priority Species List Status

No national priority or international responsability

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.