Carex davalliana Sm.
1009570
Species
SIFS: 85700
Checklist: 1009570
SIFS: 85700
Checklist: 1009570
Contains:
Synthesis
Species description (© Flora Helvetica 2018)
10-30 cm hoch, in festen Horsten. Stängel 3kantig, rau. Blätter borstenförmig, rau, kürzer als der Stängel. Meist zweihäusig (in den seltenen zweigeschlechtigen Ähren die männlichen Blüten unten, vgl. C. pulicaris, Nr. 2683). Blütenstand eine 1-2 cm lange, endständige, lockere Ähre. Deckspelzen spitz, braun, mit hellem Rand. Fruchtschläuche 3-4,5 mm lang, braun, bei Reife rechtwinklig abstehend, die untersten abwärts gebogen, in den Schnabel verschmälert, mit deutlichen Nerven.Flowering period (© Flora Helvetica 2018)
4(-7)Habitat and distribution inside Switzerland (© Flora Helvetica 2018)
Kalkreiche Flachmoore / kollin-subalpin(-alpin) / CHWorld distribution (© Flora Helvetica 2018)
MitteleuropäischEcological indicator (© Flora Helvetica 2018)
4+w42-433.h.2n=46(92)Status
IUCN status
Least concern (LC)National Priority
K - no national priorityInternational responsibility
K - noneConservation
Threats
Anatomy
Summary of leaf anatomy (German)
Obere Epidermiszellen grösser als untere Epidermiszellen. Leitbündel im Verbindungs-Steg in der Mitte eingebettet. Leitbündelhülle nicht verholzt.Summary of stem anatomy (German)
Umriss stumpf dreieckig. Leitbündel in einer Reihe. Rechteckige Stützen. Epidermiszellen aussen verholzt.Description
Culm-diameter 0.5-1 mm, center full, radius of culm in relation to wall thickness 1:1. Outline triangular, obtusely. Epidermis cells inside thin, peripheral thicker-walled (lignified). Guard cells with externally acute ledge. Large vascular bundles arranged in one peripheral row. Chlorenchyma absent. Sclerenchyma belt in a large, peripheral continuous belt (> 3 cells). Cells thick-walled. Vascular bundles collateral closed. Small sclerenchymatic sheath around vascular bundles with 1-2 cells. Vessels arrangement in vascular bundles in lateral position. Largest vessel in the bundle small, < 20μm. Cavities (intercellulars) between parenchyma cells absent. Cavities (intercellulars) between parenchyma-cells round, oval or radial. Distinct cavities (intercellulars) in the protoxylem area of vascular bundles. Crystals absent. Cell contents as slime or phenols in isolated cells.Distribution map (Atlas)
Dataset last updated:Data is updated once a day, whenever possible.
Distribution in Switzerland (© Flora Helvetica 2018)
CHWorld distribution (© Flora Helvetica 2018)
MitteleuropäischEcology
Life form
Perennial hemicryptophyte
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 | 4+w | Light Value L | 4 | Salinity Index | — |
| Reaction Value R | 4 | Temperature factor T | 3 | ||
| Nutriments value N | 2 | 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)
Carex davalliana Sm.
Vernacular name
- Deutscher Name:
- Davalls Segge
- Nom français:
- Laîche de Davall
- Nome italiano:
- Carice di Davall
Match with other reference books
| Relationship | Scientific name | Book | No |
|---|---|---|---|
| = | Carex davalliana Sm. | Checklist 2017 | 85700 |
| = | Carex davalliana Sm. | Flora alpina 2004 | 138.17.25 |
| = | Carex davalliana Sm. | Flora Helvetica 2001 | 2509 |
| = | Carex davalliana Sm. | Flora Helvetica 2012 | 2685 |
| = | Carex davalliana Sm. | Flora Helvetica 2018 | 2685 |
| = | Carex davalliana Sm. | Index synonymique 1996 | 85700 |
| = | Carex davalliana Sm. | Landolt 1977 | 460 |
| = | Carex davalliana Sm. | Landolt 1991 | 403 |
| = | Carex davalliana Sm. | SISF/ISFS 2 | 85700 |
| = | Carex davalliana Sm. | Welten & Sutter 1982 | 2443 |
- =
- 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: Least concern
Additional information
IUCN criteria: —
Status on regional Red List 2019
| Biogeographic regions | IUCN status | IUCN criteria |
|---|---|---|
| Jura (JU) | LC | |
| Mittelland (MP) | NT | A3c |
| Alpennordflanke (NA) | LC | |
| Alpensüdflanke (SA) | NT | A3c |
| Östliche Zentralalpen (EA) | LC | |
| Westliche Zentralalpen (WA) | LC |
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
No national priority or international responsability
Protection status
| International (Bern Convention) | No | |
| GE | total protection | (25.07.2007) |
| 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: | L - | more informations |
| Forest management environmental objectives: | more informations |
Crop Wild Relatives
| CWR specie |