Juncus bulbosus L.
1024950
Species
SIFS: 218300
Checklist: 1024950
SIFS: 218300
Checklist: 1024950
Contains:
Synthesis
Species description (© Flora Helvetica 2018)
Stängel 2-20 cm, niederliegend bis aufsteigend, weniger als 0,5 mm dick, in dichten Horsten, am Grund mit fadenförmigen Blättern und zwiebelartig verdickt (nur bei dieser J.-Art). Blütenstand ein endständiger, 2-10blütiger Kopf, dazu oft mehrere seitenständige Köpfe, alle von Hochblättern überragt. Perigonblätter 3-4 mm lang, mit häutigem Rand, äussere spitzer als innere, etwas kürzer als die Frucht. Blüten oft vivipar.Flowering period (© Flora Helvetica 2018)
6-8Habitat and distribution inside Switzerland (© Flora Helvetica 2018)
Moorgräben, austrocknende Tümpel / kollin-montan / M, vereinzelt AN, JN und südliches TIWorld distribution (© Flora Helvetica 2018)
EuropäischEcological indicator (© Flora Helvetica 2018)
4+w+22-43+2.a-h.2n=40Status
IUCN status
Endangered (EN)National Priority
3 - medium national priorityInternational responsibility
1 - weakConservation
Threats
Anatomy
Summary of stem anatomy (German)
Umriss rund oder oval. Leitbündel in mehreren Reihen. Epidermiszellen verholzt.Description
Culm-diameter 1-2 mm, center full, radius of culm in relation to wall thickness 1:1. Outline circular with a smooth surface. Culm-center full, containing lignified cells. Without cortex/cylinder separation. Epidermis smooth. Epidermis cells thick-walled all around. Large vascular bundles arranged in 2-3 peripheral rows. Sclerenchyma belt in a wavy, continuous belt centripetal of the chlorenchyma. Vascular bundles collateral closed. Sclerenchymatic sheath around vascular bundles circular large, 3 to x cells. Vessels arrangement in vascular bundles in lateral position. Without vessels in vascular bundles, xylem and phloem not well differentiated. 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.
Distribution in Switzerland (© Flora Helvetica 2018)
M, vereinzelt AN, JN und südliches TIWorld distribution (© Flora Helvetica 2018)
EuropäischEcology
Life form
Hydrophyte, 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 | 2 | Temperature factor T | 3+ | ||
| Nutriments value N | 2 | 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 bulbosus L.
Vernacular name
- Deutscher Name:
- Knollen-Binse
- Nom français:
- Jonc bulbeux
- Nome italiano:
- Giunco bulboso
Match with other reference books
| Relationship | Scientific name | Book | No |
|---|---|---|---|
| = | Juncus bulbosus L. | Checklist 2017 | 218300 |
| = | Juncus bulbosus L. | Flora alpina 2004 | 137.1.19 |
| = | Juncus bulbosus L. | Flora Helvetica 2001 | 2447 |
| = | Juncus bulbosus L. | Flora Helvetica 2012 | 2619 |
| = | Juncus bulbosus L. | Flora Helvetica 2018 | 2619 |
| = | Juncus bulbosus L. | Index synonymique 1996 | 218300 |
| = | Juncus bulbosus L. | Landolt 1977 | 593 |
| = | Juncus bulbosus L. | Landolt 1991 | 518 |
| = | Juncus bulbosus L. | SISF/ISFS 2 | 218300 |
| = | Juncus bulbosus L. | Welten & Sutter 1982 | 2150 |
- =
- 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: Endangered
Additional information
IUCN criteria: C2a(i)
Status on regional Red List 2019
| Biogeographic regions | IUCN status | IUCN criteria |
|---|---|---|
| Jura (JU) | CR | C2a(i) |
| Mittelland (MP) | EN | C2a(i) |
| Alpennordflanke (NA) | EN | C2a(i) |
| Alpensüdflanke (SA) | EN | B2ab(iii) |
| Östliche Zentralalpen (EA) | CR(PE) | |
| 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
| National Priority | 3 - medium national priority |
| Need to take action | 2 - |
| International responsibility | 1 - weak |
| Need to monitor populations | 2 - |
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. |
Crop Wild Relatives
| CWR specie |