Juncus stygius L.
1025080
Species
SIFS: 219700
Checklist: 1025080
SIFS: 219700
Checklist: 1025080
Contains:
Synthesis
Species description (© Flora Helvetica 2018)
10-20 cm hoch. Stängel weniger als 1 mm dick, unten oft rötlich, über den grundständigen Blättern noch 1-2 borstenförmige Stängelblätter. Blütenstand ein endständiges, 1-4blütiges Köpfchen mit nur 2-4 mm Durchmesser, oft noch 1-2 abgerückte seitenständige Köpfchen. Hochblatt (wenn vorhanden) den Blütenstand kaum überragend. Perigonblätter strohgelb bis weisslich, 3-4 mm lang, 3nervig. Frucht gelbbraun, ca. 5 mm lang, die Perigonblätter weit überragend.Flowering period (© Flora Helvetica 2018)
7-8Habitat and distribution inside Switzerland (© Flora Helvetica 2018)
Hochmoore / montan-subalpin / LU (Sörenberg)World distribution (© Flora Helvetica 2018)
EurosibirischEcological indicator (© Flora Helvetica 2018)
4+w+11-432.h.2n=?Status
IUCN status
Critically endangered (CR)National Priority
1 - very high national priorityInternational responsibility
2 - mediumConservation
Threats
Beweidung, Trittschäden
Touristische Anlagen (Skipisten, Loipen; z. B. ist das Vorkommen bei «Salwiden» vermutlich durch eine Skipiste zerstört worden)
Natürliche Sukzession
Wenige, isolierte Populationen; beeinträchtigte Populationen lassen sich meist nicht regenerieren
Distribution map (Atlas)
Dataset last updated:Data is updated once a day, whenever possible.
Distribution in Switzerland (© Flora Helvetica 2018)
LU (Sörenberg)World distribution (© Flora Helvetica 2018)
EurosibirischEcology
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 | 1 | Temperature factor T | 3 | ||
| Nutriments value N | 1 | Continentality K | 2 | ||
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)
Water dependency
| Rivers | 0 - No link |
| Calm water | 1 - Secondary habitat |
| Ground water | 0 - No link |
Nomenclature
Accepted Name (Checklist 2017)
Juncus stygius L.
Vernacular name
- Deutscher Name:
- Styx-Binse, Moor-Binse
- Nom français:
- Jonc du Styx
- Nome italiano:
- Giunco dello Styx
Match with other reference books
| Relationship | Scientific name | Book | No |
|---|---|---|---|
| = | Juncus stygius L. | Checklist 2017 | 219700 |
| = | Juncus stygius L. | Flora alpina 2004 | 137.1.27 |
| = | Juncus stygius L. | Flora Helvetica 2001 | 2448 |
| = | Juncus stygius L. | Flora Helvetica 2012 | 2620 |
| = | Juncus stygius L. | Flora Helvetica 2018 | 2620 |
| = | Juncus stygius L. | Index synonymique 1996 | 219700 |
| = | Juncus stygius L. | Landolt 1977 | 596 |
| = | Juncus stygius L. | Landolt 1991 | 521 |
| = | Juncus stygius L. | SISF/ISFS 2 | 219700 |
| = | Juncus stygius L. | Welten & Sutter 1982 | 2155 |
- =
- 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: Critically endangered
Additional information
IUCN criteria: B2ab(iii); C2a(ii)
Status on regional Red List 2019
| Biogeographic regions | IUCN status | IUCN criteria |
|---|---|---|
| Jura (JU) | — | |
| Mittelland (MP) | RE | |
| Alpennordflanke (NA) | CR | B2ab(iii); C2a(ii) |
| Alpensüdflanke (SA) | — | |
| Östliche Zentralalpen (EA) | — | |
| Westliche Zentralalpen (WA) | — |
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
| Action level | AF (+LF +GL) - spezifische Artenförderung |
| Notice on action level | 2 - Sicherung lokaler Einzelvorkommen |
| Population monitoring | 1 - ungenügend |
| International responsibility of Switzerland | 3 - Hohe Verantwortung |
| Urgency | 1 - dringend |
| Protection of individual occurrences | necessary |
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. |
Crop Wild Relatives
| CWR specie |
Conservation
Threats and measures
Beweidung, Trittschäden
Einzäunen des Moorbereichs (ist bei Gros Gfäl im Gange)
genügend grosse Pufferzonen schaffen
Touristische Anlagen (Skipisten, Loipen; z. B. ist das Vorkommen bei «Salwiden» vermutlich durch eine Skipiste zerstört worden)
Absoluter Schutz der letzten Fundstellen
Natürliche Sukzession
Allenfalls vorsichtige Reduktion von Konkurrenzpflanzen (von Hand)
jedoch Schonung anderer seltener Arten
Wenige, isolierte Populationen; beeinträchtigte Populationen lassen sich meist nicht regenerieren
Schutz inkl. Zonen mit gutem Pufferungsvermögen
regelmässige Bestandeskontrollen
Dauerflächen einrichten
Artenschutzprojekt initiieren, Ex situ-Kultur in Botanischen Gärten und Wiederansiedlungen im ehemaligen Fundgebiet unbedingt prüfen (Schwantenau, Breitried, evtl. Zugerberg)
an potentiellen Fundstellen Wasserhaushalt stabilisieren, evtl. lokal vernässen
Erfolgskontrolle der Massnahmen gewährleisten