Bromus commutatus Schrad.
1007260
Species
SIFS: 65500
Checklist: 1007260
SIFS: 65500
Checklist: 1007260
Synthesis
Species description (© Flora Helvetica 2018)
Blütenstand meist rispig (Verzweigungen nur an den untersten Ästen), zuletzt überhängend. Ährchen ohne die Grannen 15-20 mm lang, Deckspelzen 9-10 mm lang, die untersten um 1-2 mm länger als die Vorspelzen. Staubbeutel 1,5-2 mm lang.Flowering period (© Flora Helvetica 2018)
5-6Habitat and distribution inside Switzerland (© Flora Helvetica 2018)
Grasplätze, Ödland / kollin-montan(-subalpin) / Zerstreut CHWorld distribution (© Flora Helvetica 2018)
EuropäischEcological indicator (© Flora Helvetica 2018)
2+w+43+34+3.t.2n=28Status
IUCN status
Vulnerable (VU)National Priority
4 - weak national priorityInternational responsibility
1 - weakConservation
Threats
Anatomy
Summary of stem anatomy (German)
Umriss rund oder oval. Leitbündel in mehreren Reihen. Epidermiszellen verholzt. Chlorenchyma in peripheren runden, ovalen oder rechteckigen Gruppen.Description
Culm-diameter 1-2 mm, wall very large, radius of culm in relation to wall thickness approximately 1:0.75. Outline circular wavy. Culm-center hollow and surrounded by many large thin-walled, not lignified cells. Epidermis-cells thick-walled all around. Large vascular bundles arranged in 2-3 peripheral rows. Chlorenchyma in round, oval, square or rectangular groups. 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. Cavities (intercellulars) between parenchyma-cells present, small, often triangular.Distribution map (Atlas)
Dataset last updated:Data is updated once a day, whenever possible.
Distribution in Switzerland (© Flora Helvetica 2018)
Zerstreut CHWorld distribution (© Flora Helvetica 2018)
EuropäischEcology
Life form
Therophyte
Habitats
Habitats © Delarze & al. 2015
- bold
- Dominant species, influencing the appearance of the habitat
-
- Character species
-
- Less strictly linked to a specific habitat
Ecological indicator values by © Landolt & al. (2010)
| Soil factors | Climatic factors | Salinity tolerance | |||
|---|---|---|---|---|---|
| Humidity Value H | 2+w+ | Light Value L | 3 | Salinity Index | 1 |
| Reaction Value R | 4 | Temperature factor T | 4+ | ||
| Nutriments value N | 3 | 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 commutatus Schrad.
Vernacular name
- Deutscher Name:
- Verwechselte Trauben-Trespe
- Nom français:
- Brome confondu
- Nome italiano:
- —
Match with other reference books
| Relationship | Scientific name | Book | No |
|---|---|---|---|
| = | Bromus commutatus Schrad. | Checklist 2017 | 65500 |
| = | Bromus commutatus Schrad. | Flora alpina 2004 | 139.21.16 |
| = | Bromus commutatus Schrad. | Flora Helvetica 2012 | 2790 |
| = | Bromus commutatus Schrad. | Flora Helvetica 2018 | 2790 |
| = | Bromus commutatus Schrad. | Index synonymique 1996 | 65500 |
| = | Bromus commutatus Schrad. | Landolt 1977 | 377 |
| = | Bromus commutatus Schrad. | Landolt 1991 | 339 |
| = | Bromus commutatus Schrad. | SISF/ISFS 2 | 65500 |
| = | Bromus commutatus Schrad. | Welten & Sutter 1982 | 2258 |
- =
- 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)
Checklist 2017 comments
ChecklistStatus
Native status
-
IUCN list of endangered species (© Walter & Gillett 1997): No
Status on national Red List
IUCN status: Vulnerable
Additional information
IUCN criteria: B2b(iv)c(iii)
Status on regional Red List 2019
| Biogeographic regions | IUCN status | IUCN criteria |
|---|
Legend
- EX
- Extinct
- RE
- Regionally Extinct
- CR(PE)
- Critically Endangered, Probably Extinct
- CR
- Critically Endangered
- EN
- Endangered
- VU
- Vulnerable
- NT
- Near Threatened
- LC
- Least Concern
- DD
- Data Deficient
- NE
- Not Evaluated
- NA
- Not Applicable
National Priority Species List Status
| National Priority | 4 - weak national priority |
| Need to take action | 1 - |
| International responsibility | 1 - weak |
| Need to monitor populations | 0 - |
Protection status
| International (Bern Convention) | No | |
| VD | total protection | (02.03.2005) |
| Switzerland | — |
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. |
Status by sector of activity
| Agriculture-related environmental objectives: | Z - | more informations |
| Forest management environmental objectives: | more informations |
Crop Wild Relatives
| CWR specie |