Close

Bromus rigidus Roth

Species
SIFS: 66900
Checklist: 1007480

Synthesis

Species description (© Flora Helvetica 2018)

20-40 cm hoch, wenigstens unter der Rispe behaart. Blätter 4-6 mm breit, dicht und kurz behaart. Blattscheiden mit abstehenden Haaren. Rispe aufrecht, dicht, Äste meist kürzer als die Ährchen, diese ohne die Grannen 2,5-3,5 cm lang, nach vorn keilförmig verbreitert. Untere Hüllspelze 1,5-1,8 cm lang, 1nervig, obere 2-2,5 cm lang, 3nervig. Deckspelze 2,2-2,5 cm lang, vorn tief 2spaltig. Granne 3-5 cm lang, kräftig und rau. Vorspelze deutlich kürzer als Deckspelze. Staubbeutel ca. 1 mm lang.

Flowering period (© Flora Helvetica 2018)

4-5

Habitat and distribution inside Switzerland (© Flora Helvetica 2018)

Wegränder, Schuttplätze, Bahnareale, adventiv / kollin / Südliches TI, M

World distribution (© Flora Helvetica 2018)

Mediterran

Ecological indicator (© Flora Helvetica 2018)

1+44+553.t.2n=42

Anatomy

Summary of stem anatomy (German)

Umriss rund oder oval. Leitbündel in mehreren Reihen. Epidermiszellen verholzt. Chlorenchyma in tangential verlängerten Gruppen.

Description

Culm-diameter 0.5-1 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 thin-walled all around. Large vascular bundles arranged in 2-3 peripheral rows. Chlorenchyma absent. Sclerenchyma in a large, peripheral continuous belt (> 3 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 20-50 μm. Distinct cavities (intercellulars) in the protoxylem area of vascular bundles.

Distribution map (Atlas)

Dataset last updated:
Data is updated once a day, whenever possible.

Simple

Before threshold year
From 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
From 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
Symbols
Valley surfaces Mountain surfaces
Abundant or frequent presence
Scarce or rare presence
H Herbarium sample
L Mentioned in the litterature
Colors
Occurrences from Atlas Welten & Sutter (1982)
Occurrences from supplements 1984
Occurrences from supplements 1994

Distribution in Switzerland (© Flora Helvetica 2018)

Südliches TI, M

World distribution (© Flora Helvetica 2018)

Mediterran

Ecology

Life form

Therophyte

Habitats

Habitats © Delarze & al. 2015

NO INFORMATION

Ecological indicator values by © Landolt & al. (2010)

Soil factors Climatic factors Salinity tolerance
Humidity Value H 1+ Light Value L 5 Salinity Index 1
Reaction Value R 4 Temperature factor T 5
Nutriments value N 4 Continentality K 3
Ecological values legend

Humidity Value H

1
very dry
1+
dry
2
moderatly dry
2+
moist
3
medium wet
3+
wet
4
very wet
4+
soggy
5
submerged or underwater
f
plants living in running water
u
mostly submerged plants
v
partly submerged, partly floating plants
w
humidity moderately variable (± scale of 1-2)
w+
highly variable humidity (scale exceeding ± 2)

Reaction Value R

1
Very acid (pH 2.5-5.5)
2
acid (pH 3.5-6.5)
3
lightly acid to neutral (pH 4.5-7.5)
4
neutral to basic (pH 5.5-8.5)
5
basic (pH 6-5 -> 8.5

Nutriments value N

1
very low in nutrients
2
low in nutriments
3
medium-poor to medium-rich in nutrients
4
rich in nutriments
5
very rich in nutriments

Salinity tolerance

1
halotolerant
3
halophyle

Light Value L

1
very shady
2
shady
3
lighted areas
4
luminous
5
highly luminous

Temperature factor T

1
alpine to nival stages (from the treeline to the snowline)
1+
suprasubalpine and upper subalpine levels (pine and larch forests)
2
subalpine level (coniferous forests without beeches up to the upper limit of spruces)
2+
lower subalpine and upper mountain stages
3
mountain level (beech and silver fir forests, in the central Alps Scots pine forests)
3+
lower mountain and upper hill levels
4
hill level (mixed deciduous oak forests)
4+
hot places, hill level
5
very hot places, hill level (only in the hottest places, typical of southern Europe)

Continentality K

1
Atlantic (high air humidity, very low temperature variations, mild winters)
2
Sub-Atlantic (high air humidity, low temperature variations, relatively mild winters)
3
sub-Atlantic to subcontinental (average air humidity, moderately variable temperature, slightly low winter temperatures)
4
subcontinental (low air humidity, large temperature variations, rather cold winters)
5
continental (very low air humidity, very large temperature variations, cold winters)

Nomenclature

Accepted Name (Checklist 2017)

Bromus rigidus Roth

Vernacular name

Deutscher Name:
Steife Trespe
Nom français:
Brome raide
Nome italiano:
Forasacco massimo

Match with other reference books

Relationship Scientific name Book No
=Bromus rigidus RothChecklist 201766900
=Bromus rigidus RothFlora alpina 2004139.21.2
=Bromus rigidus RothFlora Helvetica 20012617
=Bromus rigidus RothFlora Helvetica 20122793
=Bromus rigidus RothFlora Helvetica 20182793
=Bromus rigidus RothIndex synonymique 199666900
=Bromus rigidus RothLandolt 1977368
=Bromus rigidus RothSISF/ISFS 266900
=
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